I am trying to create an Android activity which sends data through the serial port as a product test. I have some code for doing so, which, so far, finds no serial ports on my device which definitely has a serial port. I intend to use this activity with a loopback connector on the serial port of the device to verify both the read and write functionalities. I have tried these two programs:
import android.app.Activity;
import com.symbol.emdk.EMDKManager;
import com.symbol.emdk.EMDKManager.EMDKListener;
import com.symbol.emdk.EMDKManager.FEATURE_TYPE;
import com.symbol.emdk.EMDKResults;
import com.symbol.emdk.serialcomm.SerialComm;
import com.symbol.emdk.serialcomm.SerialCommException;
import com.symbol.emdk.serialcomm.SerialCommManager;
import com.symbol.emdk.serialcomm.SerialCommResults;
import com.symbol.emdk.serialcomm.SerialPortInfo;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import java.util.HashMap;
import java.util.List;
public class SerialTry3 extends Activity implements EMDKListener{
private String TAG = SerialTry3.class.getSimpleName();
private EMDKManager emdkManager = null;
private SerialComm serialCommPort = null;
private SerialCommManager serialCommManager = null;
private EditText txtDataToSend = null;
private TextView txtStatus = null;
private Button btnRead = null;
private Button btnWrite = null;
private Spinner spinnerPorts = null;
public HashMap<String, SerialPortInfo> supportedPorts = null;
#Override #SuppressWarnings("SetTextI18n")
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.serial_try);
txtDataToSend = (EditText) findViewById(R.id.txtDataToSend);
txtDataToSend.setText("Serial Communication Write Data Testing.");
spinnerPorts = (Spinner)findViewById(R.id.spinnerPorts);
btnWrite = (Button) findViewById(R.id.btnWrite);
btnRead = (Button) findViewById(R.id.btnRead);
txtStatus = (TextView) findViewById(R.id.statusView);
txtStatus.setText("");
txtStatus.requestFocus();
EMDKResults results = EMDKManager.getEMDKManager(getApplicationContext(), this);
if (results.statusCode != EMDKResults.STATUS_CODE.SUCCESS) {
new AsyncStatusUpdate().execute("EMDKManager object request failed!");
}
new AsyncUiControlUpdate().execute(false);
}
#Override
public void onOpened(EMDKManager emdkManager) {
this.emdkManager = emdkManager;
Log.d(TAG, "EMDK opened");
try{
serialCommManager = (SerialCommManager) this.emdkManager.getInstance(FEATURE_TYPE.SERIALCOMM_EX);
if(serialCommManager != null) {
populatePorts();
}
else
{
new AsyncStatusUpdate().execute(FEATURE_TYPE.SERIALCOMM_EX.toString() + " Feature not supported.");
}
}
catch(Exception e)
{
Log.d(TAG, e.getMessage());
new AsyncStatusUpdate().execute(e.getMessage());
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.splash_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
protected void onDestroy() {
super.onDestroy();
deinitSerialComm();
if (emdkManager != null) {
emdkManager.release();
emdkManager = null;
}
}
#Override
protected void onPause()
{
super.onPause();
deinitSerialComm();
serialCommManager = null;
supportedPorts = null;
// Release the serialComm manager resources
if (emdkManager != null) {
emdkManager.release(FEATURE_TYPE.SERIALCOMM_EX);
}
}
#Override
protected void onResume()
{
super.onResume();
// Acquire the serialComm manager resources
if (emdkManager != null) {
serialCommManager = (SerialCommManager) emdkManager.getInstance(FEATURE_TYPE.SERIALCOMM_EX);
if (serialCommManager != null) {
populatePorts();
if (supportedPorts != null)
initSerialComm();
}
}
}
void populatePorts()
{
try {
if(serialCommManager != null) {
List<SerialPortInfo> serialPorts = serialCommManager.getSupportedPorts();
if(serialPorts.size()>0) {
supportedPorts = new HashMap<String, SerialPortInfo> ();
String[] ports = new String[serialPorts.size()];
int count = 0;
for (SerialPortInfo info : serialPorts) {
supportedPorts.put(info.getFriendlyName(), info);
ports[count] = info.getFriendlyName();
count++;
}
spinnerPorts.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_dropdown_item, ports));
spinnerPorts.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
//Disabling previous serial port before getting the new one
deinitSerialComm();
initSerialComm();
}
#Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
}
else
{
new AsyncStatusUpdate().execute("Failed to get available ports");
Toast.makeText(this, "Failed to get available ports, serial communication may not be supported.", Toast.LENGTH_LONG).show();
finish();
}
}
else
{
new AsyncStatusUpdate().execute("SerialCommManager is null");
}
}
catch (Exception ex)
{
Log.d(TAG, ex.getMessage());
new AsyncStatusUpdate().execute(ex.getMessage());
}
}
void initSerialComm() {
new AsyncEnableSerialComm().execute(supportedPorts.get(spinnerPorts.getSelectedItem()));
}
#Override
public void onClosed() {
if(emdkManager != null) {
emdkManager.release();
}
new AsyncStatusUpdate().execute("EMDK closed unexpectedly! Please close and restart the application.");
}
public void btnReadOnClick(View arg)
{
new AsyncReadData().execute();
}
public void btnWriteOnClick(View arg)
{
new AsyncUiControlUpdate().execute(false);
try {
String writeData = txtDataToSend.getText().toString();
int bytesWritten = serialCommPort.write(writeData.getBytes(), writeData.getBytes().length);
new AsyncStatusUpdate().execute("Bytes written: "+ bytesWritten);
} catch (SerialCommException e) {
new AsyncStatusUpdate().execute("write: "+ e.getResult().getDescription());
}
catch (Exception e) {
new AsyncStatusUpdate().execute("write: "+ e.getMessage() + "\n");
}
new AsyncUiControlUpdate().execute(true);
}
void deinitSerialComm() {
if (serialCommPort != null) {
try {
serialCommPort.disable();
serialCommPort = null;
} catch (Exception ex) {
Log.d(TAG, "deinitSerialComm disable Exception: " + ex.getMessage());
}
}
}
#SuppressWarnings("StaticFieldLeak")
private class AsyncStatusUpdate extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... params) {
return params[0];
}
#Override
protected void onPostExecute(String result) {
txtStatus.setText(result);
}
}
#SuppressWarnings("StaticFieldLeak")
private class AsyncUiControlUpdate extends AsyncTask<Boolean, Void, Boolean> {
#Override
protected Boolean doInBackground(Boolean... arg0) {
return arg0[0];
}
#Override
protected void onPostExecute(Boolean bEnable) {
btnRead.setEnabled(bEnable);
btnWrite.setEnabled(bEnable);
txtDataToSend.setEnabled(bEnable);
spinnerPorts.setEnabled(bEnable);
}
}
#SuppressWarnings("StaticFieldLeak")
private class AsyncEnableSerialComm extends AsyncTask<SerialPortInfo, Void, SerialCommResults>
{
#Override
protected SerialCommResults doInBackground(SerialPortInfo... params) {
SerialCommResults returnvar = SerialCommResults.FAILURE;
try {
serialCommPort = serialCommManager.getPort(params[0]);
} catch (Exception ex) {
ex.printStackTrace();
}
if (serialCommPort != null) {
try {
serialCommPort.enable();
returnvar = SerialCommResults.SUCCESS;
} catch (SerialCommException e) {
Log.d(TAG, e.getMessage());
e.printStackTrace();
returnvar = e.getResult();
}
}
return returnvar;
}
#Override #SuppressWarnings("SetTextI18n")
protected void onPostExecute(SerialCommResults result) {
super.onPostExecute(result);
if (result == SerialCommResults.SUCCESS) {
new AsyncStatusUpdate().execute("Serial comm channel enabled: (" + spinnerPorts.getSelectedItem().toString() + ")");
txtDataToSend.setText("Serial Communication Write Data Testing " + spinnerPorts.getSelectedItem().toString() + ".");
new AsyncUiControlUpdate().execute(true);
} else {
new AsyncStatusUpdate().execute(result.getDescription());
new AsyncUiControlUpdate().execute(false);
}
}
}
#SuppressWarnings("StaticFieldLeak")
private class AsyncReadData extends AsyncTask<Void, Void, String>
{
#Override
protected void onPreExecute() {
super.onPreExecute();
new AsyncUiControlUpdate().execute(false);
new AsyncStatusUpdate().execute("Reading..");
}
#Override
protected String doInBackground(Void... params) {
String statusText = "";
try {
byte[] readBuffer = serialCommPort.read(10000); //Timeout after 10 seconds
if (readBuffer != null) {
String tempString = new String(readBuffer);
statusText = "Data Read:\n" + tempString;
} else {
statusText = "No Data Available";
}
} catch (SerialCommException e) {
statusText = "read:" + e.getResult().getDescription();
} catch (Exception e) {
statusText = "read:" + e.getMessage();
}
return statusText;
}
#Override
protected void onPostExecute(String statusText) {
super.onPostExecute(statusText);
new AsyncUiControlUpdate().execute(true);
new AsyncStatusUpdate().execute(statusText);
}
}
}
and
import android.app.Activity;
import com.symbol.emdk.EMDKManager;
import com.symbol.emdk.EMDKManager.FEATURE_TYPE;
import com.symbol.emdk.EMDKResults;
import com.symbol.emdk.serialcomm.SerialComm;
import com.symbol.emdk.serialcomm.SerialCommException;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.symbol.emdk.serialcomm.SerialCommManager;
import com.symbol.emdk.serialcomm.SerialPortInfo;
import java.util.List;
public class SerialTry extends Activity implements EMDKManager.EMDKListener {
private String TAG = SerialTry.class.getSimpleName();
private EMDKManager emdkManager = null;
private SerialComm serialComm = null;
private SerialCommManager serialCommMan = null;
private EditText editText = null;
private TextView statusView = null;
private Button readButton = null;
private Button writeButton = null;
#Override #SuppressWarnings("SetTextI18n")
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.serial_try);
editText = (EditText) findViewById(R.id.editText1);
editText.setText("Serial Communication Write Data Testing.");
statusView = (TextView) findViewById(R.id.statusView);
statusView.setText("");
statusView.requestFocus();
EMDKResults results = EMDKManager.getEMDKManager(getApplicationContext(), this);
if (results.statusCode != EMDKResults.STATUS_CODE.SUCCESS) {
statusView.setText("Failed to open EMDK");
} else {
statusView.setText("Opening EMDK...");
}
//
// Get the serialComm/port object by passing a SerialPortInfo object:
addReadButtonEvents();
writeButtonEvents();
setEnabled(false);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.splash_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
protected void onDestroy() {
super.onDestroy();
if (emdkManager != null) {
emdkManager.release();
emdkManager = null;
}
}
#Override
public void onOpened(EMDKManager emdkManager) {
this.emdkManager = emdkManager;
Log.d(TAG, "EMDK opened");
try{
serialCommMan = (SerialCommManager) this.emdkManager.getInstance(EMDKManager.FEATURE_TYPE.SERIALCOMM_EX);
List<SerialPortInfo> serialPorts = serialCommMan.getSupportedPorts();
serialComm = serialCommMan.getPort(serialPorts.get(0));
System.out.println("Supported Ports::::::" + serialPorts);
Thread readThread = new Thread(new Runnable() {
#Override
public void run() {
String statusText;
if (serialComm != null) {
try{
serialComm.enable();
statusText = "Serial comm channel enabled";
setEnabled(true);
} catch(SerialCommException e){
Log.d(TAG, e.getMessage());
e.printStackTrace();
statusText = e.getMessage();
setEnabled(false);
}
} else {
statusText = FEATURE_TYPE.SERIALCOMM_EX.toString() + " Feature not supported or initilization error.";
setEnabled(false);
}
displayMessage(statusText);
}
});
readThread.start();
}
catch(Exception e)
{
Log.d(TAG, e.getMessage());
e.printStackTrace();
displayMessage(e.getMessage());
}
}
#Override
public void onClosed() {
if(emdkManager != null) {
emdkManager.release();
}
displayMessage("EMDK closed abruptly.");
}
private void addReadButtonEvents() {
readButton = (Button) findViewById(R.id.btnRead);
readButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Thread readThread = new Thread(new Runnable() {
#Override
public void run() {
setEnabled(false);
String statusText;
try {
byte[] readBuffer = serialComm.read(10000); //Timeout after 10 seconds
if(readBuffer != null) {
String tempString = new String(readBuffer);
statusText = "Data Read:\n" + tempString;
} else {
statusText = "No Data Available";
}
}catch (SerialCommException e) {
statusText ="read:"+ e.getResult().getDescription();
e.printStackTrace();
}
catch (Exception e) {
statusText = "read:"+ e.getMessage();
e.printStackTrace();
}
setEnabled(true);
displayMessage(statusText);
}
});
readThread.start();
}
});
}
#SuppressWarnings("SetTextI18n")
private void writeButtonEvents() {
writeButton = (Button) findViewById(R.id.btnWrite);
writeButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
setEnabled(false);
try {
String writeData = editText.getText().toString();
int bytesWritten = serialComm.write(writeData.getBytes(), writeData.getBytes().length);
statusView.setText("Bytes written: "+ bytesWritten);
} catch (SerialCommException e) {
statusView.setText("write: "+ e.getResult().getDescription());
}
catch (Exception e) {
statusView.setText("write: "+ e.getMessage() + "\n");
}
setEnabled(true);
}
});
}
#SuppressWarnings("SetTextI18n")
void displayMessage(String message) {
final String tempMessage = message;
runOnUiThread(new Runnable() {
public void run() {
statusView.setText(tempMessage + "\n");
}
});
}
void setEnabled(boolean enableState) {
final boolean tempState = enableState;
runOnUiThread(new Runnable() {
public void run() {
readButton.setEnabled(tempState);
writeButton.setEnabled(tempState);
editText.setEnabled(tempState);
}
});
}
}
Does the problem seem to be with my code or is there something I am not understanding about the device itself? Any help would be appreciated. Thank you for your time.
From the below code I can convert a image file to byte array in my mobile app.But I cannot Convert a video file since OutOfMemoryError exception comes. I want to send a video file to a arduino board. Since I can send a string from android app to arduino, I am trying to send a video file like that. But it fails. I there any other solution to solve my problem?please help.
Code for converting image to byte array
package com.example.krishan.detectusbplugin;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
File file = new File(Environment.getExternalStorageDirectory() + "/Output/" +"My.mp4");
// convertFileToByteArray(file);
System.out.println(Arrays.toString(convertFileToByteArray(file)));
try {
System.out.write(convertFileToByteArray(file));
} catch (IOException e) {
e.printStackTrace();
}
}
public static byte[] convertFileToByteArray(File f) {
byte[] byteArray = null;
try {
InputStream inputStream = new FileInputStream(f);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024 * 8];
int bytesRead = 0;
while ((bytesRead = inputStream.read(b)) != -1) {
bos.write(b, 0, bytesRead);
}
byteArray = bos.toByteArray();
} catch (IOException e) {
e.printStackTrace();
}
return byteArray;
}
}
Code for sending a string to arduino through usb cable
package com.hariharan.arduinousb;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.felhr.usbserial.UsbSerialDevice;
import com.felhr.usbserial.UsbSerialInterface;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends Activity {
public final String ACTION_USB_PERMISSION = "com.hariharan.arduinousb.USB_PERMISSION";
Button startButton, sendButton, clearButton, stopButton;
TextView textView;
EditText editText;
UsbManager usbManager;
UsbDevice device;
UsbSerialDevice serialPort;
UsbDeviceConnection connection;
UsbSerialInterface.UsbReadCallback mCallback = new UsbSerialInterface.UsbReadCallback() { //Defining a Callback which triggers whenever data is read.
#Override
public void onReceivedData(byte[] arg0) {
String data = null;
try {
data = new String(arg0, "UTF-8");
data.concat("/n");
tvAppend(textView, data);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
};
private final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() { //Broadcast Receiver to automatically start and stop the Serial connection.
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(ACTION_USB_PERMISSION)) {
boolean granted = intent.getExtras().getBoolean(UsbManager.EXTRA_PERMISSION_GRANTED);
if (granted) {
connection = usbManager.openDevice(device);
serialPort = UsbSerialDevice.createUsbSerialDevice(device, connection);
if (serialPort != null) {
if (serialPort.open()) { //Set Serial Connection Parameters.
setUiEnabled(true);
serialPort.setBaudRate(9600);
serialPort.setDataBits(UsbSerialInterface.DATA_BITS_8);
serialPort.setStopBits(UsbSerialInterface.STOP_BITS_1);
serialPort.setParity(UsbSerialInterface.PARITY_NONE);
serialPort.setFlowControl(UsbSerialInterface.FLOW_CONTROL_OFF);
serialPort.read(mCallback);
tvAppend(textView, "Serial Connection Opened!\n");
} else {
Log.d("SERIAL", "PORT NOT OPEN");
Toast.makeText(getApplicationContext(), "SERIAL , PORT NOT OPEN", Toast.LENGTH_LONG).show();
}
} else {
Log.d("SERIAL", "PORT IS NULLPORT IS NULL");
Toast.makeText(getApplicationContext(), "SERIAL , PORT IS NULL", Toast.LENGTH_LONG).show();
}
} else {
Log.d("SERIAL", "PERM NOT GRANTED");
Toast.makeText(getApplicationContext(), "SERIAL , PERM NOT GRANTED", Toast.LENGTH_LONG).show();
}
} else if (intent.getAction().equals(UsbManager.ACTION_USB_DEVICE_ATTACHED)) {
onClickStart(startButton);
} else if (intent.getAction().equals(UsbManager.ACTION_USB_DEVICE_DETACHED)) {
onClickStop(stopButton);
}
}
;
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
usbManager = (UsbManager) getSystemService(this.USB_SERVICE);
startButton = (Button) findViewById(R.id.buttonStart);
sendButton = (Button) findViewById(R.id.buttonSend);
clearButton = (Button) findViewById(R.id.buttonClear);
stopButton = (Button) findViewById(R.id.buttonStop);
editText = (EditText) findViewById(R.id.editText);
textView = (TextView) findViewById(R.id.textView);
setUiEnabled(false);
IntentFilter filter = new IntentFilter();
filter.addAction(ACTION_USB_PERMISSION);
filter.addAction(UsbManager.ACTION_USB_DEVICE_ATTACHED);
filter.addAction(UsbManager.ACTION_USB_DEVICE_DETACHED);
registerReceiver(broadcastReceiver, filter);
}
public void setUiEnabled(boolean bool) {
startButton.setEnabled(!bool);
sendButton.setEnabled(bool);
stopButton.setEnabled(bool);
textView.setEnabled(bool);
}
public void onClickStart(View view) {
HashMap<String, UsbDevice> usbDevices = usbManager.getDeviceList();
if (!usbDevices.isEmpty()) {
boolean keep = true;
for (Map.Entry<String, UsbDevice> entry : usbDevices.entrySet()) {
device = entry.getValue();
int devicePID = device.getProductId();
if (devicePID == 0x0043)//Arduino Product ID in Hexa
{
PendingIntent pi = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
usbManager.requestPermission(device, pi);
keep = false;
} else {
Toast.makeText(getApplicationContext(), "PID does not match", Toast.LENGTH_LONG).show();
connection = null;
device = null;
}
if (!keep)
break;
}
}
}
public void onClickSend(View view) {
String string = editText.getText().toString();
serialPort.write(string.getBytes());
tvAppend(textView, "\nData Sent : " + string + "\n");
}
public void onClickStop(View view) {
setUiEnabled(false);
serialPort.close();
tvAppend(textView, "\nSerial Connection Closed! \n");
}
public void onClickClear(View view) {
textView.setText(" ");
}
private void tvAppend(TextView tv, CharSequence text) {
final TextView ftv = tv;
final CharSequence ftext = text;
runOnUiThread(new Runnable() {
#Override
public void run() {
ftv.append(ftext);
}
});
}
}
I have been trying to send data from arduino to an Android application via Bluetooth Module HC-05 and i couldn't get any readings from the arduino to be displayed in the application
The arduino code is :
void setup() {
Serial.begin(9600);
}
void loop()
{
char c;
if(Serial.available())
{
c = Serial.read();
Serial.print(c);
}
}
The Android code is:
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.os.Handler;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Set;
import java.util.UUID;
public class MainActivity extends Activity {
// private final String DEVICE_NAME="MyBTBee";
private final String DEVICE_ADDRESS="30:14:12:18:01:38";
private final UUID PORT_UUID = UUID.fromString("00001101-0000-1000-8000-00805f9b34fb");//Serial Port Service ID
private BluetoothDevice device;
private BluetoothSocket socket;
private OutputStream outputStream;
private InputStream inputStream;
Button startButton, sendButton,clearButton,stopButton;
TextView textView;
EditText editText;
boolean deviceConnected=false;
Thread thread;
byte buffer[];
int bufferPosition;
boolean stopThread;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startButton = (Button) findViewById(R.id.buttonStart);
sendButton = (Button) findViewById(R.id.buttonSend);
clearButton = (Button) findViewById(R.id.buttonClear);
stopButton = (Button) findViewById(R.id.buttonStop);
editText = (EditText) findViewById(R.id.editText);
textView = (TextView) findViewById(R.id.textView);
setUiEnabled(false);
}
public void setUiEnabled(boolean bool)
{
startButton.setEnabled(!bool);
sendButton.setEnabled(bool);
stopButton.setEnabled(bool);
textView.setEnabled(bool);
}
public boolean BTinit()
{
boolean found=false;
BluetoothAdapter bluetoothAdapter=BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
Toast.makeText(getApplicationContext(),"Device doesnt Support Bluetooth",Toast.LENGTH_SHORT).show();
}
if(!bluetoothAdapter.isEnabled())
{
Intent enableAdapter = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableAdapter, 0);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
Set<BluetoothDevice> bondedDevices = bluetoothAdapter.getBondedDevices();
if(bondedDevices.isEmpty())
{
Toast.makeText(getApplicationContext(),"Please Pair the Device first",Toast.LENGTH_SHORT).show();
}
else
{
for (BluetoothDevice iterator : bondedDevices)
{
if(iterator.getAddress().equals(DEVICE_ADDRESS))
{
device=iterator;
found=true;
break;
}
}
}
return found;
}
public boolean BTconnect()
{
boolean connected=true;
try {
socket = device.createRfcommSocketToServiceRecord(PORT_UUID);
socket.connect();
} catch (IOException e) {
e.printStackTrace();
connected=false;
}
if(connected)
{
try {
outputStream=socket.getOutputStream();
} catch (IOException e) {
e.printStackTrace();
}
try {
inputStream=socket.getInputStream();
} catch (IOException e) {
e.printStackTrace();
}
}
return connected;
}
public void onClickStart(View view) {
if(BTinit())
{
if(BTconnect())
{
setUiEnabled(true);
deviceConnected=true;
beginListenForData();
textView.append("\nConnection Opened!\n");
}
}
}
void beginListenForData()
{
final Handler handler = new Handler();
stopThread = false;
buffer = new byte[1024];
Thread thread = new Thread(new Runnable()
{
public void run()
{
while(!Thread.currentThread().isInterrupted() && !stopThread)
{
try
{
int byteCount = inputStream.available();
if(byteCount > 0)
{
byte[] rawBytes = new byte[byteCount];
inputStream.read(rawBytes);
final String string=new String(rawBytes,"UTF-8");
handler.post(new Runnable() {
public void run()
{
textView.append(string);
}
});
}
}
catch (IOException ex)
{
stopThread = true;
}
}
}
});
thread.start();
}
public void onClickSend(View view) {
String string = editText.getText().toString();
string.concat("\n");
try {
outputStream.write(string.getBytes());
} catch (IOException e) {
e.printStackTrace();
}
textView.append("\nSent Data:"+string+"\n");
}
public void onClickStop(View view) throws IOException {
stopThread = true;
outputStream.close();
inputStream.close();
socket.close();
setUiEnabled(false);
deviceConnected=false;
textView.append("\nConnection Closed!\n");
}
public void onClickClear(View view) {
textView.setText("");
}
}
The first issue I see right now is in your Arduino code:
You're never sending the message over Bluetooth as you're using the same Serial for input and output. If you're using an Arduino Mega using Serial1 would fixe this (Using TX1 and RX1). If you're not using a Mega you should consider to use the SerialSoftware library which allows you to create a new custom Serial.
It would be nice to see your Arduino setup to see how you wired it up.
Hope that helps you, feel free to ask any question.
I am trying to run video which is stored in assets/pages/id(id may be rice or sugar or meat ect)/id.mp4 . In this app if i touch on a video of any item (rice or sugar or meat) it will play respective mp4 video. But video is not playing properly.
Trying to find out but fail.
Below is my code
package com.app.teachmesushi;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.res.AssetManager;
import android.graphics.PixelFormat;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.os.Messenger;
import android.os.RemoteException;
import android.util.Log;
import android.widget.MediaController;
import android.widget.VideoView;
import com.flurry.android.FlurryAgent;
public class VideoActivity extends Activity implements OnPreparedListener {
private VideoView video;
private MediaController ctlr;
private String id;
private File file;
private ProgressDialog pd = null;
private Integer msec = -1;
private int start = 1;
Messenger mService = null;
boolean mIsBound;
final Messenger mMessenger = new Messenger(new IncomingHandler());
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.activity_video);
final String id = getIntent().getExtras().getString("id");
this.id = id;
if (savedInstanceState != null) {
msec = savedInstanceState.getInt("pos");
}
video = (VideoView) findViewById(R.id.video);
ctlr = new MediaController(this, false);
ctlr.setMediaPlayer(video);
video.setMediaController(ctlr);
video.setOnPreparedListener(this);
}
#Override
protected void onStart() {
super.onStart();
FlurryAgent.onStartSession(this, MainActivity.FLURRY_KEY);
Map<String, String> articleParams = new HashMap<String, String>();
articleParams.put("ID", id); // Capture user status
FlurryAgent.logEvent("Video", articleParams);
Log.e("sushi", "msec: " + msec);
Log.e("sushi", "start: " + start);
CheckIfServiceIsRunning();
String fileName = id + ".mp4";
file = new File(getExternalFilesDir(null), fileName);
if (file.exists()) {
video.setVideoPath(file.getPath());
} else {
// Show the ProgressDialog on this thread
pd = ProgressDialog.show(VideoActivity.this, "Launching video",
"Accessing...", true, false);
pd.dismiss();
// Start a new thread that will download all the data
new DownloadTask().execute(fileName);
}
if (msec != -1) {
video.seekTo(msec);
} else if (start == 1) {
start = 0;
video.start();
} else if (msec == video.getDuration()) {
video.seekTo(0);
}
}
#Override
public void onPause() {
super.onPause();
video.pause();
msec = video.getCurrentPosition();
pd.dismiss();
}
#Override
public void onStop() {
super.onStop();
video.pause();
msec = video.getCurrentPosition();
doUnbindService();
}
#Override
public void onDestroy() {
super.onDestroy();
video = null;
ctlr = null;
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("pos", video.getCurrentPosition());
}
public void onPrepared(MediaPlayer mp) {
try {
video.requestFocus();
ctlr.show();
} catch (Exception e) {
}
}
class DownloadTask extends AsyncTask<String, Void, Object> {
protected Object doInBackground(String... args) {
AssetManager am = getAssets();
String fileName = args[0];
File file = new File(getExternalFilesDir(null), fileName);
Log.i("sushi", "Background thread starting");
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
try {
InputStream in = am.open("pages/" + id + "/" + id + ".mp4");
//InputStream in = am.open("http://176.9.35.93/tmc/videos/old/equipments.mp4");
FileOutputStream f = new FileOutputStream(file);
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = in.read(buffer)) > 0) {
f.write(buffer, 0, len1);
}
f.close();
in.close();
} catch (Exception e) {
Log.d("sushi", e.getMessage());
}
if (VideoActivity.this.pd != null) {
VideoActivity.this.pd.dismiss();
VideoActivity.this.pd = null;
}
}
return null;
}
protected void onPostExecute(Object result) {
Intent intent = new Intent(VideoActivity.this, VideoActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
Bundle b = new Bundle();
b.putString("id", id);
intent.putExtras(b);
startActivity(intent);
finish();
}
}
#Override
public void onBackPressed() {
try {
Log.d("sushi", "Deleting file");
file.delete();
} catch (Exception e) {
// TODO Auto-generated catch block
Log.e("sushi", "File delete failed");
}
finish();
}
private ServiceConnection mConnection = new ServiceConnection() {
public void onServiceConnected(ComponentName className, IBinder service) {
mService = new Messenger(service);
try {
Message msg = Message.obtain(null,
TimerService.MSG_REGISTER_CLIENT);
msg.replyTo = mMessenger;
mService.send(msg);
} catch (RemoteException e) {
// In this case the service has crashed before we could even do
// anything with it
}
}
public void onServiceDisconnected(ComponentName className) {
// This is called when the connection with the service has been
// unexpectedly disconnected - process crashed.
mService = null;
}
};
private void CheckIfServiceIsRunning() {
// If the service is running when the activity starts, we want to
// automatically bind to it.
if (TimerService.isRunning()) {
doBindService();
} else {
Log.e("sushi", "Service not running");
}
}
void doBindService() {
bindService(new Intent(this, TimerService.class), mConnection,
Context.BIND_AUTO_CREATE);
mIsBound = true;
Log.e("sushi", "Bound to service");
}
void doUnbindService() {
if (mIsBound) {
// If we have received the service, and hence registered with it,
// then now is the time to unregister.
if (mService != null) {
try {
Message msg = Message.obtain(null,
TimerService.MSG_UNREGISTER_CLIENT);
msg.replyTo = mMessenger;
mService.send(msg);
} catch (RemoteException e) {
// There is nothing special we need to do if the service has
// crashed.
}
}
// Detach our existing connection.
unbindService(mConnection);
mIsBound = false;
}
}
class IncomingHandler extends Handler {
#Override
public void handleMessage(Message msg) {
switch (msg.what) {
case TimerService.MSG_SET_INT_VALUE:
Log.e("sushi", String.valueOf(msg.arg1));
if (msg.arg1 <= 1) {
video.pause();
}
break;
default:
super.handleMessage(msg);
}
}
}
}
My Logcat error is
04-25 21:15:57.371: E/sushi(273): msec: -1
04-25 21:15:57.371: E/sushi(273): start: 1
04-25 21:15:57.381: E/sushi(273): Service not running
04-25 21:15:58.121: E/sushi(273): msec: -1
04-25 21:15:58.121: E/sushi(273): start: 1
04-25 21:15:58.121: E/sushi(273): Service not running
Pls help
Everything is ok. The problem is that i run this service in emulator not in real device. When i test in real device it is running properly. But problem in emulator.
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