Develop Reference

Streaming in VideoView without delay via rtsp

Hello I have problem with delay in stream video on android.
I have a delay of about 8 seconds and it is very annoying. There is no delay on the computer.
This is a stream from camera like gopro via wifi --> rtsp.
I found this topic on SO...
Streaming videos on VideoView
And I have the same problem as Akeshwar Jha. Unfortunately, I don't know Java. Could someone help me modify the design according to what Akeshwar Jha gave ??
package com.teststream.robotclient;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.UnknownHostException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.net.Uri;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.util.Pair;
import android.widget.VideoView;
import com.jmedeisis.bugstick.Joystick;
import com.jmedeisis.bugstick.JoystickListener;
public class MainActivity extends Activity {
private String host;
private int port;
private DatagramSocket socket;
private VideoView videoView;
private static final String TAG = "MainActivity";
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo();
String ssid = info.getSSID();
String desiredSsid = getString(R.string.ssid);
Log.i(TAG, desiredSsid);
if(!ssid.equals(desiredSsid) && !desiredSsid.equals("*")) {
exitDialog("Wrong SSID", "The SSID of the WIFI network is wrong. Desired SSID: " + desiredSsid);
}
host = getString(R.string.host);
port = Integer.parseInt(getString(R.string.port));
//new CheckConnectivity().execute();
videoView = findViewById(R.id.videoView);
Uri videoUri = Uri.parse(getString(R.string.video_uri));
videoView.setVideoURI(videoUri);
videoView.start();
Joystick left = findViewById(R.id.joystick_left);
Joystick right = findViewById(R.id.joystick_right);
left.setJoystickListener(new JoystickListener() {
#Override
public void onDown() {
log("down");
}
#Override
public void onDrag(float degrees, float offset) {
log("deg: " + degrees + ", off: " + offset);
float upValue = (float) Math.sin(Math.toRadians(degrees)) * offset;
log("" + upValue);
int intValue = normalisedFloatToByte(upValue);
new UpdateServo().execute(Pair.create(0xff, intValue));
}
#Override
public void onUp() {
log("up");
}
});
right.setJoystickListener(new JoystickListener() {
#Override
public void onDown() {
log("down");
}
#Override
public void onDrag(float degrees, float offset) {
log("deg: " + degrees + ", off: " + offset);
float upValue = (float) Math.sin(Math.toRadians(degrees)) * offset;
log("" + upValue);
int intValue = normalisedFloatToByte(upValue);
new UpdateServo().execute(Pair.create(0xfe, intValue));
}
#Override
public void onUp() {
log("up");
}
});
}
private int normalisedFloatToByte(float value) {
if(value < -1.0 || value > 1.0) {
return 0;
}
return 127 + Math.round(value * 127);
}
private void log(String text) {
Log.d(TAG, text);
}
private void exitDialog(String title, String text) {
new AlertDialog.Builder(MainActivity.this)
.setTitle(title)
.setMessage(text)
.setNeutralButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
finish();
}
})
.show();
}
class CheckConnectivity extends AsyncTask<Void, Void, Boolean> {
protected Boolean doInBackground(Void ...params) {
try {
if(!InetAddress.getByName(host).isReachable(2000)) {
return false;
}
} catch (UnknownHostException e) {
return false;
} catch (IOException e) {
return false;
}
return true;
}
protected void onPostExecute(Boolean result) {
if(result == false) {
exitDialog("Can't connect", "Can't connect with host " + host);
}
}
}
class UpdateServo extends AsyncTask<Pair<Integer, Integer>, Void, Void> {
protected Void doInBackground(Pair<Integer, Integer>... requests) {
byte[] payload = {
requests[0].first.byteValue(),
requests[0].second.byteValue()
};
try {
InetAddress addr = InetAddress.getByName(host);
DatagramPacket sendPacket = new DatagramPacket(payload, 0, payload.length, addr, port);
if (socket != null) {
socket.disconnect();
socket.close();
}
socket = new DatagramSocket(port);
socket.send(sendPacket);
} catch (UnknownHostException e) {
Log.e(TAG, "getByName failed");
} catch (IOException e) {
Log.e(TAG, "send failed");
}
return null;
}
}
#Override
public void onDestroy() {
super.onDestroy();
}
}
Thank you in advance for your help.

Updating tables in SQL Server from an Android app

I am currently developing an Android app that gets details from an SQL Server table. Thanks to everyone who has helped previously with my understanding of AsyncTasks and JSON, I can now retrieve objects. However, my attempt at updating tables from an Android device is not so smooth.
Firstly, I'll begin with the table:
I have a JobStatus table that is populated by a trigger that runs as a new record is entered into the Jobs table. When the trigger is run, these 4 columns are populated, namely:-
The JobStatusID
The JobID
QLSJobID
JobType
The remaining 4 however, are null by default and are expected to be updated through the Android app operations. They are:-
Latitude
Longitude
TimeComplete
DateComplete
I have adapted a WCF web service obtained from here to do the operations. It is essentially a POST update operation.
Now, for the Android code. Essentially, what happens at the Android app is that a JobStatus entry is updated only when the Save/Sign button is captured. For that to happen, the user must input their name and sign for a Job for all the information to be sent back to the JobStatus table. Here is the code:
package com.signonglass;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import org.json.JSONStringer;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnCancelListener;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.RectF;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.provider.MediaStore.Images;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class CaptureSignature extends Activity implements LocationListener
{
private final static String getJobURI = "http://192.168.0.105:8095/CentralMonitoring/CentralMonitor.svc/getJobStatus/";
private final static String jobURI = "http://192.168.0.105:8095/CentralMonitoring/CentralMonitor.svc/UpdateJobStatus";
final Date currentTime = new Date();
final SimpleDateFormat sdf = new SimpleDateFormat("EEE, MMM d, yyyy HH:mm:ss a z");
//Live Connections
//private final static String jobURI = "http://192.168.14.9:8092/CentralMonitoring/CentralMonitor.svc/UpdateJobStatus";
//private final static String getJobURI = "http://192.168.14.9:8092/CentralMonitoring/CentralMonitor.svc/getJobStatus/";
JSONStringer jobStatToUpdate;
LinearLayout mContent;
signature mSignature;
Button mClear, mGetSign, mCancel;
public static String tempDir;
public int count = 1;
public String current = null;
private Bitmap mBitmap;
View mView;
File mypath;
//additional variables for capturing details
Consignments cObj;
public Handler mHandler;
JobStatus js = new JobStatus();
JobStatus jsUpdate;
double latitude;
double longitude;
String datetime;
TextView tvLoc;
Location location;
String transAdd;
private String uniqueId;
private EditText yourName;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.signature);
cObj = (Consignments)this.getIntent().getSerializableExtra("Consignment");
//tempDir = Environment.getExternalStorageDirectory() + "/" + getResources().getString(R.string.external_dir) + "/";
ContextWrapper cw = new ContextWrapper(getApplicationContext());
File directory = cw.getDir(getResources().getString(R.string.external_dir), Context.MODE_PRIVATE);
prepareDirectory();
Calendar c = Calendar.getInstance();
c.setTimeZone(TimeZone.getDefault());
uniqueId = cObj.getJobType() + Integer.toString(cObj.getConsignmentID());
current = uniqueId + ".jpg";
mypath = new File(directory, current);
//Control Properties
mContent = (LinearLayout) findViewById(R.id.signing);
mSignature = new signature(this, null);
mSignature.setBackgroundColor(Color.WHITE);
mContent.addView(mSignature, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
mClear = (Button)findViewById(R.id.clear);
mGetSign = (Button)findViewById(R.id.getsign);
mGetSign.setEnabled(false);
mCancel = (Button)findViewById(R.id.cancel);
mView = mContent;
yourName = (EditText)findViewById(R.id.yourName);
/* Use the LocationManager class to obtain GPS locations */
LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setPowerRequirement(Criteria.POWER_LOW);
String provider = mlocManager.getBestProvider(criteria, true);
location = mlocManager.getLastKnownLocation(provider);
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, CaptureSignature.this);
tvLoc = (TextView)findViewById(R.id.textView1);
tvLoc.setText("Latitude: "+ location.getLatitude() +", Longitude: "+ location.getLongitude());
mClear.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Log.v("log_tag", "Panel Cleared");
mSignature.clear();
mGetSign.setEnabled(false);
}
});
mGetSign.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Log.v("log_tag", "Panel Saved");
boolean error = captureSignature();
if(!error)
{
new updateJobStatus().execute(js);
mView.setDrawingCacheEnabled(true);
mSignature.save(mView);
Bundle b = new Bundle();
b.putString("status", "done");
Intent intent = new Intent();
intent.putExtras(b);
setResult(RESULT_OK,intent);
finish();
}
}
});
//Cancel method - to create pop up button
mCancel.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Log.v("log_tag", "Panel Canceled");
Bundle b = new Bundle();
b.putString("status", "cancel");
Intent intent = new Intent();
intent.putExtras(b);
setResult(RESULT_OK,intent);
finish();
}
});
new getJobStatus().execute(uniqueId);
}
public class getJobStatus extends AsyncTask<String, String, JobStatus>
{
private ProgressDialog progressDialog = new ProgressDialog(CaptureSignature.this);
InputStream inputStream = null;
String theString = "";
StringBuilder builder;
protected void onPreExecute()
{
progressDialog.setMessage("Getting " + uniqueId +" to be updated...");
progressDialog.show();
progressDialog.setOnCancelListener(new OnCancelListener()
{
public void onCancel(DialogInterface arg0)
{
getJobStatus.this.cancel(true);
}
});
}
#Override
protected JobStatus doInBackground(String... params)
{
try
{
DefaultHttpClient client = new DefaultHttpClient();
String theString = new String("");
//http get request
HttpGet request = new HttpGet(getJobURI + cObj.getJobType() + cObj.getConsignmentID());
//set the hedear to get the data in JSON format
request.setHeader("Accept", "application/json");
request.setHeader("Content-type", "application/json");
//get the response
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
InputStream is = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder builder = new StringBuilder();
String line;
while ((line = reader.readLine()) != null)
{
builder.append(line);
}
is.close();
theString = builder.toString();
JSONObject jsObj = new JSONObject(theString);
JSONArray jstat = jsObj.getJSONArray("getJobStatusResult");
for(int i = 0; i < jstat.length(); i++)
{
JSONObject jst = jstat.getJSONObject(i);
js.JobStatusID = jst.getInt("JobStatusID");
js.JobID = jst.getInt("JobID");
js.JobType = jst.getString("jobType");
js.QlsJobID = jst.getInt("qlsJobID");
/*js.DateComplete = jst.getString("dateComplete");
js.TimeComplete = jst.getString("timeComplete");
js.Latitude = jst.getDouble("latitude");
js.Longitude = jst.getDouble("longitude");*/
}
}
catch(Exception e)
{
e.printStackTrace();
}
return js;
}
protected void onPostExecute(JobStatus jobStatus)
{
this.progressDialog.dismiss();
jsUpdate = js;
}
}
public class updateJobStatus extends AsyncTask<JobStatus, String, JSONStringer>
{
private ProgressDialog progressDialog = new ProgressDialog(CaptureSignature.this);
InputStream inputStream = null;
String theString = "";
StringBuilder builder;
protected void onPreExecute()
{
progressDialog.setMessage("Updating " + uniqueId +"...");
progressDialog.show();
progressDialog.setOnCancelListener(new OnCancelListener()
{
public void onCancel(DialogInterface arg0)
{
updateJobStatus.this.cancel(true);
}
});
}
#Override
protected JSONStringer doInBackground(JobStatus... arg0)
{
HttpPut request = new HttpPut(jobURI);
try
{
sdf.setTimeZone(TimeZone.getTimeZone("AEST"));
jobStatToUpdate = new JSONStringer()
.object()
.key("JobStatusID").value(js.getJobStatusID())
.key("JobID").value(js.getJobID())
.key("dateComplete").value(js.getDate())
.key("latitude").value(js.getLat())
.key("longitude").value(js.getClass())
.key("timeComplete").value(js.getTime())
.key("qlsjobID").value(js.getQLSID())
.endObject();
StringEntity entity = new StringEntity(jobStatToUpdate.toString());
request.setEntity(entity);
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpResponse response = httpClient.execute(request);
Log.d("WebInvoke", "Saving : " + response.getStatusLine().getStatusCode());
}
catch (Exception e)
{
e.printStackTrace();
}
return jobStatToUpdate;
}
}
#Override
protected void onDestroy()
{
//Log.w("GetSignature", "onDestory");
//super.onDestroy();
}
private boolean captureSignature()
{
boolean error = false;
String errorMessage = "";
if(yourName.getText().toString().equalsIgnoreCase(""))
{
errorMessage = errorMessage + "Please enter your Name\n";
error = true;
}
if(error)
{
Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
toast.setGravity(Gravity.TOP, 105, 50);
toast.show();
}
return error;
}
private boolean prepareDirectory()
{
try
{
if (makedirs())
{
return true;
}
else
{
return false;
}
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(this, "Could not initiate File System.. Is Sdcard mounted properly?", Toast.LENGTH_SHORT).show();
return false;
}
}
private boolean makedirs()
{
File tempdir = new File(tempDir);
if (!tempdir.exists())
tempdir.mkdirs();
if (tempdir.isDirectory())
{
File[] files = tempdir.listFiles();
for (File file : files)
{
if (!file.delete())
{
System.out.println("Failed to delete " + file);
}
}
}
return (tempdir.isDirectory());
}
public class signature extends View
{
private static final float STROKE_WIDTH = 5f;
private static final float HALF_STROKE_WIDTH = STROKE_WIDTH / 2;
private Paint paint = new Paint();
private Path path = new Path();
private float lastTouchX;
private float lastTouchY;
private final RectF dirtyRect = new RectF();
public signature(Context context, AttributeSet attrs)
{
super(context, attrs);
paint.setAntiAlias(true);
paint.setColor(Color.BLACK);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeJoin(Paint.Join.ROUND);
paint.setStrokeWidth(STROKE_WIDTH);
}
public void save(View v)
{
Log.v("log_tag", "Width: " + v.getWidth());
Log.v("log_tag", "Height: " + v.getHeight());
if(mBitmap == null)
{
mBitmap = Bitmap.createBitmap (mContent.getWidth(), mContent.getHeight(), Bitmap.Config.RGB_565);;
}
Canvas canvas = new Canvas(mBitmap);
try
{
FileOutputStream mFileOutStream = new FileOutputStream(mypath);
v.draw(canvas);
mBitmap.compress(Bitmap.CompressFormat.PNG, 90, mFileOutStream);
mFileOutStream.flush();
mFileOutStream.close();
String url = Images.Media.insertImage(getContentResolver(), mBitmap, "title", null);
Log.v("log_tag","url: " + url);
}
catch(Exception e)
{
Log.v("log_tag", e.toString());
}
}
public void clear()
{
path.reset();
invalidate();
}
#Override
protected void onDraw(Canvas canvas)
{
canvas.drawPath(path, paint);
}
#Override
public boolean onTouchEvent(MotionEvent event)
{
float eventX = event.getX();
float eventY = event.getY();
mGetSign.setEnabled(true);
switch (event.getAction())
{
case MotionEvent.ACTION_DOWN:
path.moveTo(eventX, eventY);
lastTouchX = eventX;
lastTouchY = eventY;
return true;
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_UP:
resetDirtyRect(eventX, eventY);
int historySize = event.getHistorySize();
for (int i = 0; i < historySize; i++)
{
float historicalX = event.getHistoricalX(i);
float historicalY = event.getHistoricalY(i);
expandDirtyRect(historicalX, historicalY);
path.lineTo(historicalX, historicalY);
}
path.lineTo(eventX, eventY);
break;
default:
debug("Ignored touch event: " + event.toString());
return false;
}
invalidate((int) (dirtyRect.left - HALF_STROKE_WIDTH),
(int) (dirtyRect.top - HALF_STROKE_WIDTH),
(int) (dirtyRect.right + HALF_STROKE_WIDTH),
(int) (dirtyRect.bottom + HALF_STROKE_WIDTH));
lastTouchX = eventX;
lastTouchY = eventY;
return true;
}
private void debug(String string)
{
}
private void expandDirtyRect(float historicalX, float historicalY)
{
if (historicalX < dirtyRect.left)
{
dirtyRect.left = historicalX;
}
else if (historicalX > dirtyRect.right)
{
dirtyRect.right = historicalX;
}
if (historicalY < dirtyRect.top)
{
dirtyRect.top = historicalY;
}
else if (historicalY > dirtyRect.bottom)
{
dirtyRect.bottom = historicalY;
}
}
private void resetDirtyRect(float eventX, float eventY)
{
dirtyRect.left = Math.min(lastTouchX, eventX);
dirtyRect.right = Math.max(lastTouchX, eventX);
dirtyRect.top = Math.min(lastTouchY, eventY);
dirtyRect.bottom = Math.max(lastTouchY, eventY);
}
}
#Override
public void onLocationChanged(Location mlocation)
{
tvLoc.setText("Latitude: "+ location.getLatitude() +", Longitude: "+ location.getLongitude());
}
#Override
public void onProviderDisabled(String provider)
{
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "GPS Disabled", Toast.LENGTH_SHORT ).show();
}
#Override
public void onProviderEnabled(String provider)
{
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "Gps Enabled", Toast.LENGTH_SHORT).show();
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
// TODO Auto-generated method stub
}
}
The code here is a combination of what I got from here, with some modifications. I have commented some stuff out - it may contribute to the error, but at this point, I'm more obsessed with updating the JobStatus object.
And I'm sure that the code above, most notably the UpdateJobTask AsyncTask needs to be fixed heavily.
I haven't had any errors running this, but here is the error log either way:-
05-29 10:33:37.214: W/dalvikvm(17704): threadid=1: thread exiting with uncaught exception (group=0x40f13258)
05-29 10:33:37.226: E/AndroidRuntime(17704): FATAL EXCEPTION: main
05-29 10:33:37.226: E/AndroidRuntime(17704): android.app.SuperNotCalledException: Activity {com.signonglass/com.signonglass.CaptureSignature} did not call through to super.onDestroy()
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3260)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3289)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.app.ActivityThread.access$1200(ActivityThread.java:134)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1280)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.os.Handler.dispatchMessage(Handler.java:99)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.os.Looper.loop(Looper.java:154)
05-29 10:33:37.226: E/AndroidRuntime(17704): at android.app.ActivityThread.main(ActivityThread.java:4624)
05-29 10:33:37.226: E/AndroidRuntime(17704): at java.lang.reflect.Method.invokeNative(Native Method)
05-29 10:33:37.226: E/AndroidRuntime(17704): at java.lang.reflect.Method.invoke(Method.java:511)
05-29 10:33:37.226: E/AndroidRuntime(17704): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
05-29 10:33:37.226: E/AndroidRuntime(17704): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
05-29 10:33:37.226: E/AndroidRuntime(17704): at dalvik.system.NativeStart.main(Native Method)
Thanks in advance for your tips and suggestions guys! :)

To fix the error log, you should call super.onDestroy() in your onDestroy().

Android view alert msg when i receive messege from service

Hi i have a problem on my project, i have one activity and service , i use messenger to communication with us. I would view a alert dialog when i receive a message from service ,but this dialog is not appear. On log cat i see a log with text.
Do you have a solution .
My code is:
import java.lang.ref.WeakReference;
import java.util.List;
import java.util.Map;
import ztl.Bologna.activity.Database.DBopenHelper;
import ztl.Bologna.OverlayList;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
import android.location.Location;
import android.os.Bundle;
import android.os.Handler;
import android.os.Messenger;
import android.provider.BaseColumns;
import android.app.AlertDialog;
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.util.Log;
import android.view.Menu;
public class MapsActivity extends MapActivity{
private MyLocationOverlay mOverlay;
protected static MapView gmap;
private DBopenHelper db;
OverlayList overlay;
private GuiHandler guiHandler;
private Messenger messenger;
public double destLat = 44.497592;
public double destLong = 11.356151;
private double Long = 11.352693;
private double Lat = 44.497271;
Intent serviceIntent;
public Cursor cursor;
int version ;
//final MapController control = gmap.getController();
GeoPoint gp = new GeoPoint((int)(Lat * 1e6),(int)(Long * 1e6));
//Context c = getApplicationContext();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
Context context;
context = getApplicationContext();
Log.e("context",""+context);
//db = new DBopenHelper(context);
db = new DBopenHelper(this,1);
guiHandler = new GuiHandler(this);
Log.d("put", "database");
gmap=(MapView)findViewById(R.id.mapview);
gmap.setClickable(true);
gmap.setBuiltInZoomControls(true);
mOverlay=new MyLocationOverlay(this,gmap);
//control.setCenter(gp);
// control.animateTo(gp);
gmap.getOverlays().add(mOverlay);
Lat=44.497271;
Long=11.352693;
updateMapOverlay();
db.close();
messenger = new Messenger(guiHandler);
serviceIntent = new Intent(MapsActivity.this,MessaggeService.class);
serviceIntent.putExtra(MessaggeService.CALLER, MessaggeService.POSITION);
serviceIntent.putExtra(MessaggeService.MESSENGER, messenger);
startService(serviceIntent);
Log.e("Debug", "Service Started from activity");
//ms = new MessaggeService(overlay,gmap,c);
///destLat = mOverlay.getMyLocation().getLatitudeE6();
//destLong = mOverlay.getMyLocation().getLongitudeE6();
}
private void addOpenPoint(GeoPoint g) {
OverlayItem overlayitem = new OverlayItem(g, "", "");
overlay.addOverlay(overlayitem);
Log.e("over",""+overlayitem);
}
protected void onResume() {
super.onResume();
mOverlay.enableMyLocation();
mOverlay.runOnFirstFix(new Runnable() {
// #Override
public void run() {
//gmap.invalidate();
gmap.getController().animateTo(mOverlay.getMyLocation());
gmap.getController().setZoom(16);
//updateMapOverlay();
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_maps, menu);
return true;
}
void updateMapOverlay() {
List<Overlay> mapOverlays = gmap.getOverlays();
Drawable drawable = getResources().getDrawable(R.drawable.ic_launcher);
//mapOverlays.clear();
overlay = new OverlayList(drawable, this);
mapOverlays.add(overlay);
Cursor cursor = db.getZtlStreet();
if (cursor.moveToFirst()) {
while(cursor.moveToNext()) {
Integer lat = (int) (cursor.getDouble(cursor.getColumnIndex("latitude")) * 1e6);
Integer lon = (int) (cursor.getDouble(cursor.getColumnIndex("longitude")) * 1e6);
GeoPoint p = new GeoPoint(lat, lon);
addOpenPoint(p);
}
}
}
public static class GuiHandler extends Handler {
// TODO da unificare con quello ChooseEVSEActivity
public static final int FALSE = 0;
public static final int TRUE = 1;
// tiene il conto del tempo che è passato dall'ultima volta;
WeakReference<MapsActivity> wrActivity;
public GuiHandler(MapsActivity activity) {
wrActivity = new WeakReference<MapsActivity>(activity);
}
public void handleMessage(android.os.Message msg) {
final MapsActivity activity = wrActivity.get();
/*Create alert dialog to access on ztl street*/
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.setMessage("Accesso Ztl non puoi accedere");
builder.setPositiveButton("chiudi",new DialogInterface.OnClickListener() {
//#Override
public void onClick(DialogInterface dialog, int id) {
// TODO Auto-generated method stub
dialog.cancel();
}
});
switch (msg.what) {
case MessaggeService.UPDATE_UI_MSG:
AlertDialog alertMsg = builder.create();
alertMsg.show();
break;
}
}
}
#Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
}
My service with message is :
for(int i = 0 ; i< overlay.size();i++){
Log.e("item : ","n"+overlay.size());
OverlayItem item = overlay.getItem(i);
Location l1 = new Location("");
l1.setLatitude(item.getPoint().getLatitudeE6());
Log.e("l1", "l1"+l1.getLatitude());
l1.setLongitude(item.getPoint().getLongitudeE6());
Location l2 = new Location("");
l2.setLatitude(destLat);
l2.setLongitude(destLong);
Log.e("l2", "l2"+l2.getLatitude());
try {
String caller = "generic";
try {
caller = intent.getStringExtra(CALLER);
Bundle extras = intent.getExtras();
if (extras != null) {
if (POSITION.equals(caller)) {
positionMessenger = (Messenger) extras.get(MESSENGER);
Log.e("position",""+positionMessenger);
}
}
System.out.println("Instantiating " + caller + " Messenger OK :" + positionMessenger);
} catch (Exception e) {
//Log.e(UpdaterService.class.getName(), "Error instantiating " + caller + " Messenger" + e.getMessage());
//se il servizio non è ancora partito allora esco da esso in modo che venga istanziato correttamente
if(!doUpdate) {
stopSelf();
}
}
if (l2.distanceTo(l1) >100) {
Log.e("distance","Ztl non puoi accedere");
Message msg = Message.obtain();
Log.e("msg",""+msg);
msg.what = UPDATE_UI_MSG;
positionMessenger.send(msg);
Log.e("send","send");
}} catch (RemoteException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}

You need to order the builder to show at the end
builder.show();

custom listview scrolling is stuttering

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.entity.BufferedHttpEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewParent;
import android.webkit.WebView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ViewAnimator;
public class NewsScreenAdapter extends BaseAdapter {
LayoutInflater inflater;
public GifDecoderView webview1;
public static viewholder holder;
View view = null;
public static Context context;
public ImageLoader IL;
public String imgUrl;
public static String addurl;
public NewsScreenActivity activity;
String image;
public static String str;
public static Date parsed;
public static String ac, cat_id;
int storyLenght;
public NewsScreenAdapter(NewsScreenActivity a) {
// TODO Auto-generated constructor stub
context = a.getApplicationContext();
this.activity = a;
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
IL = new ImageLoader(activity.getApplicationContext());
}
#Override
public int getCount() {
// TODO Auto-generated method stub
// return NewsScreenActivity.arrayList_header.size();
return NewsScreenActivity.TotalDataArray.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public int getItemViewType(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public int getViewTypeCount() {
// TODO Auto-generated method stub
return NewsScreenActivity.TotalDataArray.size();
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View vi = convertView;
holder = new viewholder();
vi = inflater.inflate(R.layout.newsscren_row, null);
holder.news_header_title = (TextView) vi.findViewById(R.id.header_title);
holder.ll_data = (LinearLayout) vi.findViewById(R.id.data);
vi.setTag(holder);
holder.news_header_title.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
cat_id = NewsScreenActivity.arrayList_header.get(position);
ac = ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(position)).catId;
activity.startActivity(new Intent(activity,CategoryActivity.class).putExtra("id", ac));
}
});
holder.ll_data.removeAllViews();
try {
storyLenght = ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(position)).storyArr.size();
} catch (Exception e) {
// TODO: handle exception
}
Log.d("Adapter ", " story Lenght " + storyLenght);
for (int i = 0; i < storyLenght; i++) {
view = LayoutInflater.from(activity).inflate(R.layout.sub_row, null);
holder.short_text = (TextView) view.findViewById(R.id.short_text);
holder.image = (ImageView) view.findViewById(R.id.image);
holder.des = (TextView) view.findViewById(R.id.des);
holder.date_time = (TextView) view.findViewById(R.id.date_time);
holder.llAdd = (LinearLayout) view.findViewById(R.id.sub_llAdd);
holder.imgAdd = (ImageView) view.findViewById(R.id.imgAdd);
try{
holder.image.setTag(NewsScreenActivity.arrayList_image.get(i));
IL.DisplayImage(
((NewsScreenActivity.ImagesData) ((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).storyArr.get(i)).imageArr.get(0)).smallurl, activity, holder.image);
notifyDataSetChanged();
} catch (Exception e) {
// TODO: handle exception
}
try {
holder.short_text.setText(((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(position)).storyArr.get(i)).title);
holder.des.setText(((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(position)).storyArr.get(i)).description);
String st = ((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).storyArr.get(i)).date;
parsed = new Date(Long.parseLong(st.substring(6, st.length() - 2)));
SimpleDateFormat sdf = new SimpleDateFormat("MMM dd,yyyy hh:mmaa");
System.out.println(sdf.format(parsed));
String concat = sdf.format(parsed);
String data = concat;
String half1 = data.substring(0, 11);
Log.e("1st date", "" + half1);
SimpleDateFormat display_date = new SimpleDateFormat("dd.MM.yyyy");
Date d_date = new Date();
String dis_date = display_date.format(parsed);
String half2 = data.substring(11, 19);
Log.e("2st time", "" + half2);
SimpleDateFormat currentdate = new SimpleDateFormat("MMM dd,yyyy");
Date currunt = new Date();
String day = currentdate.format(currunt);
if (half1.equalsIgnoreCase(day) == true) {
holder.date_time.setText(half2);
Log.v("if condition", "" + half2);
} else {
half1 = dis_date;
holder.date_time.setText(half1);
Log.v("else condition", "" + half1);
}
Log.e("currunt time", "" + day);
holder.news_header_title.setText(((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).catDisplay);
if (!((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).storyArr.get(i)).advertising
.equalsIgnoreCase("null")) {
holder.short_text.setVisibility(view.GONE);
holder.date_time.setVisibility(view.GONE);
holder.des.setVisibility(view.GONE);
imgUrl = ((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).storyArr.get(i)).adData.imageurl;
// TODO Auto-generated method stub
addurl = ((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray
.get(position)).storyArr.get(i)).adData.targeturl;
//-----------------GIF Image view ------------
//holder.imgAdd.setImageBitmap(IL.getBitmap(imgUrl));
holder.imgAdd.setImageBitmap(loadImageFromUrl(imgUrl));
/* InputStream is = null;
try {
is = (InputStream) new URL(imgUrl).getContent();
webview1 = new GifDecoderView(context, is);
activity.setContentView(webview1);
} catch (Exception e) {
return null;
}*/
try {
InputStream is = (InputStream) new URL(imgUrl).getContent();
GifDecoderView webview1 = new GifDecoderView(activity, is);
// GifMovieView webview1 = new GifMovieView(activity, is);
// holder.llAdd.addView(webview1, holder.imgAdd.getLayoutParams());
} catch (Exception e) {
// TODO: handle exception
}
holder.imgAdd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
activity.startActivity(new Intent(activity, AdvertismentActivity.class));
}
});
Log.i("---", "---------" + imgUrl);
holder.llAdd.setVisibility(View.VISIBLE);
}
holder.ll_data.addView(view);
Log.i("Set Tag", position+"OK"+i);
view.setTag(position+"OK"+i);
view.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
String tag = (String) v.getTag();
String[] arr = tag.split("OK");
int p = Integer.parseInt(arr[0]);
int i = Integer.parseInt(arr[1]);
Log.i("Pos and I", p + " " + i );
str = ((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray .get(p)).storyArr.get(i)).storyid;
Log.i("Pos and I and STR", p + " " + i + " " + str);
Intent intent = new Intent(context,ShowFullDescriprion.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("id", str);
intent.putExtra("cat", p);
intent.putExtra("pos",i);
context.startActivity(intent);
}
});
} catch (Exception e) {
// TODO: handle exception
}
}
return vi;
}
public static String getDate(long milliSeconds, String dateFormat) {
// Create a DateFormatter object for displaying date in specified
// format.
DateFormat formatter = new SimpleDateFormat(dateFormat);
// Create a calendar object that will convert the date and time value in
// milliseconds to date.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(milliSeconds);
return formatter.format(calendar.getTime());
}
public static class viewholder {
TextView news_header_title, short_text, des, date_time;
LinearLayout ll_data, llAdd;
public ImageView image, imgAdd;
}
public static Bitmap loadImageFromUrl(String url) {
URL m;
InputStream i = null;
BufferedInputStream bis = null;
ByteArrayOutputStream out =null;
try {
m = new URL(url);
i = (InputStream) m.getContent();
bis = new BufferedInputStream(i,1024 * 8);
out = new ByteArrayOutputStream();
int len=0;
byte[] buffer = new byte[1024];
while((len = bis.read(buffer)) != -1){
out.write(buffer, 0, len);
}
out.close();
bis.close();
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
byte[] data = out.toByteArray();
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
//Drawable d = Drawable.createFromStream(i, "src");
return bitmap;
}
}

import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.text.Html;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
public class ShowFullDescriprion extends Activity implements OnClickListener {
ImageView show_image, adv_image, refresh,show_home;
TextView title_text, des_text, date_time_txt;
Button back_btn;
LinearLayout ll, llAdv;
public static String url, full_des, advertising, adurl = "",img,
targeturl;
ProgressDialog progressDialog;
TextView mDisplay;
AsyncTask<Void, Void, Void> mRegisterTask;
String TAG = "ShowFullDescriprion";
public static ArrayList<String> catId = new ArrayList<String>();
public static ArrayList<String> catDisp = new ArrayList<String>();
public static ArrayList<String> next_arraylist = new ArrayList<String>();
public static ArrayList<String> privious_arraylist = new ArrayList<String>();
//public static ArrayList<String> arrayList_advertising = new ArrayList<String>();
SimpleGestureFilter simpleGestureFilter;
LinearLayout llCat;
TextView tvCatDisp;
private static final int SWIPE_MIN_DISTANCE = 200;
private static final int SWIPE_MAX_OFF_PATH = 250;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
int swpCnt = 0;
int SWIPE_MAX_VALUE = 1;
int PIC_WIDTH = 0;
private GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
#SuppressWarnings("unused")
private Animation animleftin = null, animleftout = null,
animrightin = null, animrightout = null;
public static String idS, titleS, dateS, descS, next, privious, adv;
public static String bigimageS=null;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.showfull_description);
back_btn = (Button) findViewById(R.id.button1);
llCat = (LinearLayout) findViewById(R.id.llCategory);
// llCat.setOnClickListener(this);
adv_image = (ImageView) findViewById(R.id.imgAdd);
refresh = (ImageView) findViewById(R.id.refresh_btn);
show_home=(ImageView)findViewById(R.id.showfull_des_home);
llAdv = (LinearLayout) findViewById(R.id.llAdd);
// simpleGestureFilter = new SimpleGestureFilter(this, this);
// int SWIPE_MAX_VALUE_new = ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.size();
//swpCnt = ((CategoryActivity.MainData) CategoryActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.indexOf(getIntent().getExtras().getString("id"));
//((NewsScreenActivity.StoryData) ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray .get(p)).storyArr.get(i)).storyid;
//String temp = ((CategoryActivity.StoryData) ((CategoryActivity.MainData) CategoryActivity.TotalDataArray .get(getIntent().getExtras().getInt("cat"))).storyArr.get(getIntent().getExtras().getString("pos"))).storyid;
// Log.i("Show full Description .....", "********************** cat "+getIntent().getExtras().getInt("cat")+" **** id *** "+getIntent().getExtras().getString("id"));
//Log.i("Show full Description .....", "********************** SWIPE_MAX_VALUE_new "+ SWIPE_MAX_VALUE_new+" *** swpCnt **** "+temp +"**** Array *** "+((CategoryActivity.MainData) CategoryActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.get(5));
try {
// SWIPE_MAX_VALUE = ((NewsScreenActivity.MainData) NewsScreenActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.size();
SWIPE_MAX_VALUE = ((CategoryActivity.MainData) CategoryActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.size();
swpCnt = getIntent().getExtras().getInt("pos");
} catch (Exception e) {
// TODO: handle exception
}
url = "http://maritimeglobalnews.com/json/story/"+ getIntent().getExtras().getString("id");
new StoryDataAsyn().execute();
title_text = (TextView) findViewById(R.id.show_full_des_title_txt);
show_image = (ImageView) findViewById(R.id.show_full_des_image);
des_text = (TextView) findViewById(R.id.show_full_des_txt);
date_time_txt = (TextView) findViewById(R.id.show_full_des_datetime_txt);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
show_home.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(getBaseContext(), NewsScreenActivity.class));
finish();
}
});
/* Log.i(TAG,
"================Inside OnCreate Method==============================");
checkNotNull(SERVER_URL, "SERVER_URL");
checkNotNull(SENDER_ID, "SENDER_ID");
// Make sure the device has the proper dependencies.
GCMRegistrar.checkDevice(getBaseContext());
// Make sure the manifest was properly set - comment out this line
// while developing the app, then uncomment it when it's ready.
GCMRegistrar.checkManifest(getBaseContext());
registerReceiver(mHandleMessageReceiver, new IntentFilter(
DISPLAY_MESSAGE_ACTION));
final String regId = GCMRegistrar.getRegistrationId(this);
if (regId.equals("")) {
Log.i(TAG,
"================Inside if in regId=null ==============================");
// Automatically registers application on startup.
GCMRegistrar.register(this, SENDER_ID);
} else {
Log.i(TAG,
"================Inside else in regId=null ==============================");
// Device is already registered on GCM, needs to check if it is
// registered on our server as well.
if (GCMRegistrar.isRegisteredOnServer(this)) {
// Skips registration.
Log.i(TAG,
"================Inside else in regId=null Already register on Server =============================");
mDisplay.append(getString(R.string.already_registered) + "\n");
} else {
Log.i(TAG,
"================Inside else in regId=null trying to register on Server =============================");
// Try to register again, but not in the UI thread.
// It's also necessary to cancel the thread onDestroy(),
// hence the use of AsyncTask instead of a raw thread.
final Context context = this;
mRegisterTask = new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... params) {
Log.i(TAG,
"================Inside doInBackground Method==============================");
boolean registered = ServerUtilities.register(context,
regId);
// At this point all attempts to register with the app
// server failed, so we need to unregister the device
// from GCM - the app will try to register again when
// it is restarted. Note that GCM will send an
// unregistered callback upon completion, but
// GCMIntentService.onUnregistered() will ignore it.
if (!registered) {
GCMRegistrar.unregister(context);
}
return null;
}
#Override
protected void onPostExecute(Void result) {
Log.i(TAG,
"================Inside onPostExecute Method==============================");
mRegisterTask = null;
}
};
mRegisterTask.execute(null, null, null);
}
} */
back_btn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
ShowFullDescriprion.this.finish();
}
});
refresh.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
new StoryDataAsyn().execute();
}
});
gestureDetector = new GestureDetector(new MyGestureDetector());
gestureListener = new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
};
prepareAnimations();
}
#Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
return super.onTouchEvent(event);
}
/*boolean net;
//onCreate
net = void isOnline() {
}
if (net == true)
{
//perform internet related tasks in the app
}
//function
public boolean isOnline1() {
ConnectivityManager cm = (ConnectivityManager) this
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = cm.getActiveNetworkInfo();
return activeNetworkInfo != null;
// return cm.getActiveNetworkInfo().isConnected();
}*/
public class StoryDataAsyn extends AsyncTask<Void, Void, Void> {
// NewsScreenActivity obj = new NewsScreenActivity();
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
// if (isNetworkConnected() == true)
// {
progressDialog = new ProgressDialog(ShowFullDescriprion.this);
progressDialog.setMessage("Loding ...");
progressDialog.setCancelable(false);
progressDialog.show();
/* } else {
AlertDialog connection = new AlertDialog.Builder(
ShowFullDescriprion.this)
.setTitle("No Network Found")
.setMessage(
"Internet Connection Reqired To Use this Application")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton)
{
}
}).create();
connection.show();
}
*/ }
#Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
catId.clear();
catDisp.clear();
getData(url);
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
if (isNetworkConnected() == true) {
progressDialog.dismiss();
title_text.setText(titleS);
/*if(bigimageS!= null && !bigimageS.equals(""))
{
show_image.setImageBitmap(decodeImage(bigimageS));
Log.v("if", ""+bigimageS);
}else
{
show_image.setImageBitmap(decodeImage(null));
Log.v("else", ""+bigimageS);
}
*/
if(isBlank(bigimageS)==true)
{
show_image.setVisibility(View.GONE);
show_image.setImageBitmap(decodeImage(null));
}
else if(isBlank(bigimageS)==false)
{
show_image.setImageBitmap(decodeImage(bigimageS));
}
// show_image.setImageBitmap(loadImageFromUrl(bigimageS));
//show_image.setImageBitmap(decodeImage(bigimageS));
des_text.setText(Html.fromHtml(descS));
Date parsed = new Date(Long.parseLong(dateS.substring(6,
dateS.length() - 2)));
SimpleDateFormat sdf = new SimpleDateFormat("MMM dd,yyyy hh:mmaa");
System.out.println(sdf.format(parsed));
date_time_txt.setText(sdf.format(parsed));
llCat.removeAllViews();
for (int i = 0; i < catId.size(); i++) {
tvCatDisp = new TextView(ShowFullDescriprion.this);
tvCatDisp.setText("");
tvCatDisp.setText(catDisp.get(i));
tvCatDisp.setBackgroundResource(R.drawable.box);
tvCatDisp.setTextColor(Color.BLACK);
tvCatDisp.setTextSize(18);
tvCatDisp.setTag(i);
Log.e("tvCatDisp............", ""+catDisp.get(i));
tvCatDisp.setOnClickListener(ShowFullDescriprion.this);
tvCatDisp.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
int pos = Integer.parseInt(v.getTag().toString());
startActivity(new Intent(ShowFullDescriprion.this,
CategoryActivity.class).putExtra("id",catId.get(pos)));
}
});
llCat.addView(tvCatDisp);
}
llAdv.removeAllViews();
if ((!adurl.equalsIgnoreCase("")) && adurl != null) {
llAdv.setVisibility(View.VISIBLE);
ImageLoader il = new ImageLoader(ShowFullDescriprion.this);
// adv_image.setImageBitmap(il.getBitmap(adurl));
// adv_image.setImageBitmap(loadImageFromUrl(adurl));
try {
InputStream is = (InputStream) new URL(adurl).getContent();
GifDecoderView webview1 = new GifDecoderView(ShowFullDescriprion.this, is);
// activity.setContentView(webview1);
llAdv.addView(webview1,adv_image.getLayoutParams());
// holder.imgAdd.setImageBitmap(IL.getBitmap(imgUrl));
} catch (Exception e) {
}
llAdv.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
// Intent showAdvIntent =new Intent(ShowFullDescriprion.this,AdvertismentActivity.class);
// showAdvIntent.putExtra("id",targeturl);
startActivity(new Intent(getBaseContext(),AdvertismentActivity.class));
Log.e("show add url...", ""+targeturl);
}
});
}
}else
{
llAdv.setVisibility(View.GONE);
AlertDialog connection = new AlertDialog.Builder(
ShowFullDescriprion.this)
.setTitle("No Network Found")
.setMessage(
"Internet Connection Reqired To Use this Application")
.setPositiveButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int whichButton)
{
// new StoryDataAsyn().execute();
progressDialog.dismiss();
}
}).create();
connection.show();
}
}
}
public boolean isNetworkConnected() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = cm.getActiveNetworkInfo();
if (ni == null) {
return false;
} else
return true;
}
public void getData(String url) {
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); // Timeout
try {
HttpPost request = new HttpPost(url);
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpResponse res = httpClient.execute(request);
Log.i("Request", request.toString());
String JsonResponseData = EntityUtils.toString(res.getEntity());
Log.i("JSON", JsonResponseData);
JSONObject mainJsonObj = new JSONObject(JsonResponseData);
titleS = mainJsonObj.getString("Title");
dateS = mainJsonObj.getString("Date");
descS = mainJsonObj.getString("ContentHTML");
next = mainJsonObj.getString("NextStoryEID");
next_arraylist.add(next);
Log.e("next id", "" + next_arraylist);
Log.e("nextstring id", "" + next);
privious = mainJsonObj.getString("PrevStoryEID");
privious_arraylist.add(privious);
Log.e("privious id", "" + privious_arraylist);
Log.e("privious string id", "" + privious);
try {
JSONArray tmpAd = mainJsonObj.optJSONArray("advertising");
adurl = tmpAd.getJSONObject(0).getString("ImageUrl");
targeturl = tmpAd.getJSONObject(0).getString("TargetUrl");
Log.v("target url is", "" + targeturl);
} catch (Exception e) {
// TODO: handle exception
}
try {
JSONArray tmpimg = mainJsonObj.optJSONArray("images");
bigimageS = tmpimg.getJSONObject(0).getString("iPhoneBigImageURL");
Log.v("bigimageS is", "" + bigimageS);
} catch (Exception e) {
// TODO: handle exception
}
JSONArray categJsonArr = mainJsonObj.getJSONArray("categories");
for (int i = 0; i < categJsonArr.length(); i++) {
catId.add(categJsonArr.getJSONObject(i) .getString("CategoryEID"));
catDisp.add(categJsonArr.getJSONObject(i).getString("CategoryDisplay"));
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static Bitmap loadImageFromUrl(String url) {
URL m;
InputStream i = null;
BufferedInputStream bis = null;
ByteArrayOutputStream out =null;
try {
m = new URL(url);
i = (InputStream) m.getContent();
bis = new BufferedInputStream(i,1024 * 8);
out = new ByteArrayOutputStream();
int len=0;
byte[] buffer = new byte[1024];
while((len = bis.read(buffer)) != -1){
out.write(buffer, 0, len);
}
out.close();
bis.close();
} catch (MalformedURLException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
byte[] data = out.toByteArray();
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
//Drawable d = Drawable.createFromStream(i, "src");
return bitmap;
}
public static Bitmap decodeImage(String arrayList_image) {
URL aURL;
try {
aURL = new URL(arrayList_image);
URLConnection conn = aURL.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
Bitmap bm = BitmapFactory.decodeStream(bis);
bis.close();
is.close();
return bm;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
public boolean dispatchTouchEvent(MotionEvent me) {
this.gestureDetector.onTouchEvent(me);
return super.dispatchTouchEvent(me);
}
class MyGestureDetector extends SimpleOnGestureListener {
#Override
public boolean onDown(MotionEvent e) {
// TODO Auto-generated method stub
return super.onDown(e);
}
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
Log.e("Inside onfling", "Call");
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
return false;
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
url = "http://maritimeglobalnews.com/json/story/"+next;
new StoryDataAsyn().execute();
Log.d("url next mate", ""+url);
Log.d("right to left privious.....", ""+next_arraylist);
try {
Log.i("","swip count " + swpCnt+" ***** "+((CategoryActivity.MainData) CategoryActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.size());
} catch (Exception e) {
// TODO: handle exception
}
if (swpCnt >= 0 && swpCnt < SWIPE_MAX_VALUE - 1)
{
swpCnt++;
/* url = "http://maritimeglobalnews.com/json/story/"+next;
new StoryDataAsyn().execute();
Log.d("url next mate", ""+url);
Log.d("right to left privious.....", ""+next_arraylist); */
}
}
else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY ){
url = "http://maritimeglobalnews.com/json/story/"+privious;
Log.v("previousid first if", ""+privious);
Log.i("right to left privious first if.....", ""+privious_arraylist);
new StoryDataAsyn().execute();
if (swpCnt > 0 && swpCnt <= SWIPE_MAX_VALUE - 1) {
swpCnt--;
/*url = "http://maritimeglobalnews.com/json/story/"+privious;
Log.v("url",""+url);
Log.v("previousid 2 if", ""+privious);
new StoryDataAsyn().execute(); */
}
try {
Log.i("","swip count " + swpCnt+" ***** "+((CategoryActivity.MainData) CategoryActivity.TotalDataArray.get(getIntent().getExtras().getInt("cat"))).storyArr.size());
} catch (Exception e) {
// TODO: handle exception
}
/*if (swpCnt > 0 && swpCnt <= SWIPE_MAX_VALUE - 1)
{
swpCnt--;
url = "http://maritimeglobalnews.com/json/story/"+privious;
Log.v("previousid 3 if", ""+privious);
Log.i("right to left privious. 3 if", ""+privious_arraylist);
new StoryDataAsyn().execute();
} */
}
return false;
}
}
private void prepareAnimations() {
animleftin = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
+1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
animleftout = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, -1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
animrightin = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
-1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
animrightout = new TranslateAnimation(Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, +1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
}
/*#Override
protected void onDestroy() {
Log.i(TAG,
"================Inside OnDestroy Method==============================");
if (mRegisterTask != null) {
mRegisterTask.cancel(true);
}
unregisterReceiver(mHandleMessageReceiver);
GCMRegistrar.onDestroy(this);
super.onDestroy();
}
private void checkNotNull(Object reference, String name) {
Log.i(TAG,
"================Inside checkNotNull Method==============================");
if (reference == null) {
throw new NullPointerException(getString(R.string.error_config,
name));
}
}
private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG,
"================Inside OnReceive in BroadcastReceiver Method==============================");
String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
mDisplay.append(newMessage + "\n");
}
};*/
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (v == tvCatDisp) {
// TODO Auto-generated method stub
startActivity(new Intent(ShowFullDescriprion.this,
CategoryActivity.class).putExtra("id", catId.get((Integer)v.getTag())));
}
}
public static boolean isBlank(String string) {
if (bigimageS == null || bigimageS.length() == 0)
return true;
int l = bigimageS.length();
for (int i = 0; i < l; i++) {
if (!Character.isWhitespace(bigimageS.codePointAt(i)))
return false;
}
return true;
}
}

You're not reusing your list items. This is why the list is starting to "stutter".
There are a lot of answers on this problem that display the concept of reusing ListView items.
Like this one
In general: within your getView method, check if the convertView is null. If it is, inflate your view. If it's not null, just insert the items that you want to display. This should solve your stuttering list view problem.

Please use for existing layout in BaseAdpter as below
ViewHolder holder = null;
if ( convertView == null )
{
/* There is no view at this position, we create a new one.
In this case by inflating an xml layout */
convertView = mInflater.inflate(R.layout.listview_item, null);
holder = new ViewHolder();
holder.toggleOk = (ToggleButton) convertView.findViewById( R.id.togOk );
convertView.setTag (holder);
}
else
{
/* We recycle a View that already exists */
holder = (ViewHolder) convertView.getTag ();
}
this may helps you

Load record at scrolllistview

I need to prevent against lazy load in my custom list-view. so i found that scrollview onscroll listner are helpfull over there i have tryed it but not getting success to implement this functionality.
Code:
lviewAdapter = new ListViewAdapter(SaxParser2.this, Arr_ActivityName, Arr_AudioScript,Arr_RequestID,Arr_FolderPath,Arr_RequestTo);
lview.setOnScrollListener(SaxParser2.this);
#Override
public void onScroll(AbsListView arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
lview.setAdapter(lviewAdapter);
}
#Override
public void onScrollStateChanged(AbsListView arg0, int arg1) {
// TODO Auto-generated method stub
}
here is my BaseAdapter
package com.RecordingApp;
import it.sauronsoftware.ftp4j.FTPClient;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Typeface;
import android.graphics.drawable.AnimationDrawable;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.os.AsyncTask;
import android.os.CountDownTimer;
import android.os.Environment;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.Sharedpreferance.GMailSender;
public class ListViewAdapter extends BaseAdapter {
public static Activity context;
String title[];
String description[];
String RequestId[];
String Folderpath[];
String RequestTo[];
boolean b_Flag_Record_or_not = false;
boolean b_upload_or_not = false;
boolean start_or_not = false;
boolean start_play = false;
boolean upload_or_not = false;
boolean b_play_or_not = false;
boolean isplaying2 = false;
Thread welcomeThread,welcomeThread2;
int glob_position;
MediaPlayer mPlayer2;
int flag_stop_position;
AudioRecorder recorder;
AnimationDrawable frameAnimation, frameAnimation_play;
private static String mFileName = null;
private MediaRecorder mRecorder = null;
private MediaPlayer mPlayer = null;
Recording login = new Recording();
MediaPlayer MP_completeRequest = new MediaPlayer();
public ListViewAdapter(Activity context, String[] title,
String[] description, String[] req_id, String[] FolderPath,
String[] Arr_RequestTo) {
super();
this.context = context;
this.title = title;
this.description = description;
this.RequestId = req_id;
this.Folderpath = FolderPath;
this.RequestTo = Arr_RequestTo;
}
public int getCount() {
// TODO Auto-generated method stub
return title.length;
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
private class ViewHolder {
TextView txtViewTitle;
TextView txtViewDescription;
Button record, stop, play, upload;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
final ViewHolder holder;
LayoutInflater inflater = context.getLayoutInflater();
glob_position = position;
if (convertView == null) {
convertView = inflater.inflate(R.layout.listitem_row, null);
holder = new ViewHolder();
holder.txtViewTitle = (TextView) convertView
.findViewById(R.id.textView1);
holder.txtViewDescription = (TextView) convertView
.findViewById(R.id.textView2);
holder.record = (Button) convertView.findViewById(R.id.record);
holder.stop = (Button) convertView.findViewById(R.id.stop);
holder.play = (Button) convertView.findViewById(R.id.play1);
holder.upload = (Button) convertView
.findViewById(R.id.audio_upload);
holder.record.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (isplaying2 == true) {
} else {
if (b_Flag_Record_or_not == true) {
} else {
try {
holder.record.setBackgroundResource(R.drawable.record_green);
b_Flag_Record_or_not = true;
b_play_or_not = true;
flag_stop_position = position;
AuthHandler dataHandler = new AuthHandler();
AuthDataset dataset = dataHandler
.getParsednewJobdtl_DataSet();
// Login l = new Login();
String str_useid = RequestTo[position];
recorder = new AudioRecorder(
"/audiometer/shanesh"
+ RequestId[position] + "-"
+ str_useid);
start_or_not = true;
recorder.start();
Toast.makeText(context, "Recording Started",
Toast.LENGTH_LONG).show();
CountDownTimer countDowntimer = new CountDownTimer(
120000000, 1000) {
public void onTick(long millisUntilFinished) {
}
public void onFinish() {
try {
Toast.makeText(
context,
"Stop recording Automatically ",
Toast.LENGTH_LONG).show();
recorder.stop();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
};
countDowntimer.start();
} catch (IOException e) {
gotoGmail(e);
} catch (Exception e) {
gotoGmail(e);
}
}
}
}
});
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
try {
Typeface face = Typeface.createFromAsset(context.getAssets(),
"fonts/tahoma.ttf");
holder.txtViewTitle.setTypeface(face);
holder.txtViewTitle.setText(title[position]);
holder.txtViewDescription.setText(description[position]);
} catch (ArrayIndexOutOfBoundsException e) {
e.printStackTrace();
}
holder.stop.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
try {
if (isplaying2 == true) {
mPlayer2.stop();
isplaying2 = false;
} else {
holder.record.setBackgroundResource(R.drawable.page7_15);
if (flag_stop_position == position) {
b_Flag_Record_or_not = false;
if (start_or_not == true) {
b_play_or_not = false;
recorder.stop();
upload_or_not = true;
start_play = true;
Toast.makeText(context, "Stoped Recording",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context,
" Please Start recording ",
Toast.LENGTH_LONG).show();
}
} else {
}
}
} catch (Exception e) {
gotoGmail(e);
}
}
});
holder.play.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
String temp = SaxParser2.str_completeORpendingFlag;
if (temp.equalsIgnoreCase("c")) {
try {
final MediaPlayer mPlayer = new MediaPlayer();
try {
mPlayer.setDataSource(Folderpath[position]);
mPlayer.prepare();
final int welcomeScreenDisplay = mPlayer
.getDuration();
welcomeThread = new Thread() {
int wait = 0;
#Override
public void run() {
try {
isplaying2 = true;
mPlayer.start();
while (wait < welcomeScreenDisplay) {
sleep(100);
wait += 100;
}
} catch (Exception e) {
} finally {
isplaying2 = false;
}
}
};
welcomeThread.start();
} catch (Exception e) {
gotoGmail(e);
}
} catch (Exception e) {
gotoGmail(e);
}
} else if (temp.equalsIgnoreCase("p")) {
try {
if (b_play_or_not == true) {
} else {
String str_useid = RequestTo[position];
java.io.File file = new java.io.File(Environment
.getExternalStorageDirectory()
+ "/audiometer/", "shanesh"
+ RequestId[position] + "-" + str_useid
+ ".amr");
if (file.exists()) {
Toast.makeText(context, "Playing",
Toast.LENGTH_LONG).show();
mPlayer2 = new MediaPlayer();
try {
mPlayer2.setDataSource(Environment
.getExternalStorageDirectory()
+ "/audiometer/shanesh"
+ RequestId[position]
+ "-"
+ str_useid + ".amr");
mPlayer2.prepare();
mPlayer2.start();
isplaying2 = true;
final int welcomeScreenDisplay = mPlayer2
.getDuration();
/**
* create a thread to show splash up to
* splash time
*/
welcomeThread = new Thread() {
int wait = 0;
#Override
public void run() {
try {mPlayer2.prepare();
while (wait < welcomeScreenDisplay) {
sleep(100);
wait += 100;
}
} catch (Exception e) {
} finally {
welcomeThread2 = new Thread() {
int wait = 0;
#Override
public void run() {
try {
mPlayer2.start();
while (wait < welcomeScreenDisplay) {
sleep(100);
wait += 100;
}
} catch (Exception e) {
} finally {
// frameAnimation_play.stop();
isplaying2 = false;
}
}
};
welcomeThread2.start();
}
}
};
welcomeThread.start();
} catch (Exception e) {
gotoGmail(e);
}
} else {
Toast.makeText(context, " File Not Found ",
Toast.LENGTH_LONG).show();
}
}
} catch (Exception e) {
gotoGmail(e);
}
}
}
});
holder.upload.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
glob_position = position;
// String str_useid = RequestTo[position];
if (upload_or_not == true) {
try {
new xyz().execute();
} catch (Exception e) {
gotoGmail(e);
}
}
}
});
return convertView;
}
private class xyz extends AsyncTask<Void, Void, Void> {
private final ProgressDialog dialog = new ProgressDialog(context);
protected void onPreExecute() {
try {
this.dialog.setMessage("Uploading...Please Wait..");
dialog.setIndeterminate(true);
dialog.setCancelable(false);
this.dialog.show();
// put your code which preload with processDialog
} catch (Exception e) {
gotoGmail(e);
}
}
#Override
protected Void doInBackground(Void... arg0) {
for (int i = 0; i < 100000; i++) {
}
it.sauronsoftware.ftp4j.FTPClient con = new it.sauronsoftware.ftp4j.FTPClient();
try {
String str_useid = RequestTo[glob_position];
con.connect("URL");
con.login("as", "asdasd");
con.changeDirectory("/rangam/RequestContent/audio");
con.setPassive(true);
con.setType(FTPClient.TYPE_BINARY);
con.upload(new java.io.File(Environment
.getExternalStorageDirectory()
+ "/audiometer/shanesh"
+ RequestId[glob_position] + "-" + str_useid + ".amr"));
String filename = "/shanesh" + RequestId[glob_position] + "-"
+ str_useid + ".amr";
con.logout();
con.disconnect(true);
String MachineName = Machinelist.str_Machinename;
sendFlagToServer(RequestId[glob_position], filename,
MachineName);
} catch (Exception e) {
gotoGmail(e);
}
return null;
}
protected void onPostExecute(final Void unused) {
if (this.dialog.isShowing()) {
try {
this.dialog.dismiss();
AlertDialog.Builder alertbox = new AlertDialog.Builder(
context);
alertbox.setTitle("Message");
alertbox.setMessage(":: Uploaded Successfully ::");
alertbox.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
Intent intent_request = new Intent(context,
SaxParser2.class);
intent_request.putExtra("value", Machinelist.str_UIDValue);
intent_request.putExtra("machineName",
Machinelist.str_Machinename);
intent_request.putExtra("captureBack_or_not", 2);
context.startActivity(intent_request);
context.finish();
}
});
alertbox.show();
} catch (Exception e) {
gotoGmail(e);
}
}
}
}
private void sendFlagToServer(String requestID, String filename,
String machineName) {
HttpURLConnection connection;
OutputStreamWriter request = null;
String MachineName = Machinelist.str_Machinename;
URL url = null;
String parameters = "RequestID=" + requestID + "&FileName=" + filename
+ "&MachineName=" + MachineName + "&RequestType=A";
try {
url = new URL(
"URL");
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestMethod("POST");
request = new OutputStreamWriter(connection.getOutputStream());
request.write(parameters);
request.flush();
request.close();
String line = "";
InputStreamReader isr = new InputStreamReader(
connection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
isr.close();
reader.close();
} catch (Exception e) {
gotoGmail(e);
}
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK)) {
try {
context.finish();
} catch (Exception e) {
gotoGmail(e);
}
}
return false;
}
void gotoGmail(Exception e) {
Writer writer = new StringWriter();
PrintWriter printWriter = new PrintWriter(writer);
e.printStackTrace(printWriter);
String s = writer.toString();
}
}

Ok,
So first you'll have to define "what is the number of views I'd need to load in order my user not to see that it's lazy loading ?" :
Let's say, you'd want to load 20 rows...
Now in you onscroll, or wherever you want but somewhere like on scroll or Adapter.getView, you'll have to know what is displayed on screen at the moment... Let me explain :
I want to load 20 rows so my user doesn't notice,
I am display 10 of them
and 10 of them are just hidden (not displayed if the guy doesn't scroll).
Now, I wan't to load 10 more when the guy just hit my 15th row
What could be the best way to do that ???
Humm, let's see, trying to find something that returns the (ABSOLUTE) number of the last row displayed on screen - this could be a nice solution.
An otehr solution could be that your 10 or 15th row is the first one displayed on screen ?
etc, etc...
I think stuffs like that should do the trick. ;)

Here is a sample I grabbed from Net. It is loading the items by listening to the Scroll of the ListView . For sample it is loading dates in ListView. After reached the end position it will load next 15 dates. It is Never Ending List . You can modify the adapter to your custom adapter. The concept is:
You have set of data
Loading first n no of items
Set the scroll listener to the listview
If scroll reaches Last Visible Item in Listview , You trigger the worker thread to load additional m no of items.
Notify listview from an UI thread.
int itemsPerPage = 15;
boolean loadingMore = false;
ArrayList<String> myListItems;
ArrayAdapter<String> adapter;
//For test data :-)
Calendar d = Calendar.getInstance();
this.getListView().setOnScrollListener(new OnScrollListener(){
//useless here, skip!
#Override
public void onScrollStateChanged(AbsListView view, int scrollState) {}
#Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
//what is the bottom item that is visible
int lastInScreen = firstVisibleItem + visibleItemCount;
//is the bottom item visible & not loading more already ? Load more !
if((lastInScreen == totalItemCount) && !(loadingMore)){
Thread thread = new Thread(null, loadMoreListItems);
thread.start();
}
}
});
//Load the first 15 items
Thread thread = new Thread(null, loadMoreListItems);
thread.start();
}
//Runnable to load the items
private Runnable loadMoreListItems = new Runnable() {
#Override
public void run() {
//Set flag so we cant load new items 2 at the same time
loadingMore = true;
//Reset the array that holds the new items
myListItems = new ArrayList<String>();
//Get 15 new listitems
for (int i = 0; i < itemsPerPage; i++) {
//Fill the item with some bogus information
myListItems.add("Date: " + (d.get(Calendar.MONTH)+ 1) + "/" + d.get(Calendar.DATE) + "/" + d.get(Calendar.YEAR) );
// +1 day :-D
d.add(Calendar.DATE, 1);
}
//Done! now continue on the UI thread
runOnUiThread(returnRes);
}
};
//Since we cant update our UI from a thread this Runnable takes care of that!
private Runnable returnRes = new Runnable() {
#Override
public void run() {
//Loop thru the new items and add them to the adapter
if(myListItems != null && myListItems.size() > 0){
for(int i=0;i<myListItems.size();i++)
adapter.add(myListItems.get(i));
}
//Update the Application title
setTitle("Neverending List with " + String.valueOf(adapter.getCount()) + " items");
//Tell to the adapter that changes have been made, this will cause the list to refresh
adapter.notifyDataSetChanged();
//Done loading more.
loadingMore = false;
}
};
EDIT:
You can get tutorial and full project here