Develop Reference

Android Application and Observable

i'm developing a simple application on android studio. I'm using "application", "observable", and many more. i got some error like this:
java.lang.RuntimeException: Unable to start activity ComponentInfo{id.wdharmana.doahindu/id.wdharmana.doahindu.MainActivity}: java.lang.ClassCastException: android.app.Application cannot be cast to id.wdharmana.doahindu.app.DoaApplication
2nd error
Caused by: java.lang.ClassCastException: android.app.Application cannot be cast to id.wdharmana.doahindu.app.DoaApplication
3rd error
at id.wdharmana.doahindu.MainActivity.onCreate(MainActivity.java:52)
This is my full MainActivity.java:
package id.wdharmana.doahindu;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.app.SearchManager;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.SearchView;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import id.wdharmana.doahindu.adapter.ListJudulAdapter;
import id.wdharmana.doahindu.app.DoaApplication;
import id.wdharmana.doahindu.data.DefaultData;
import id.wdharmana.doahindu.helper.DoaHelper;
import id.wdharmana.doahindu.model.DoaModel;
import id.wdharmana.doahindu.model.DoaObserver;
import java.util.ArrayList;
import java.util.Observable;
import java.util.Observer;
public class MainActivity extends AppCompatActivity implements Observer {
private ListView lvJudul;
private ArrayList<DoaModel> listJudul;
private DoaHelper doaHelper;
public ListJudulAdapter listJudulAdapter;
private DoaApplication application;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvJudul = (ListView)findViewById(R.id.lvListJudul);
listJudul = new ArrayList<DoaModel>();
application = (DoaApplication) getApplication();
application.getDoaObserver().addObserver(this);
doaHelper = new DoaHelper(MainActivity.this);
doaHelper.open();
listJudul = doaHelper.getAllData();
if (listJudul.size()>0) {
bindData();
}else{
insertDefaultData();
}
lvJudul.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
showMeaningDialog(MainActivity.this, listJudul.get(arg2));
}
});
lvJudul.setOnItemLongClickListener(new OnItemLongClickListener() {
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
deleteDialog(listJudul.get(arg2).getId());
return false;
}
});
}
private void insertDefaultData() {
// TODO Auto-generated method stub
new StoreDefaultData().execute();
}
public void update(Observable observable, Object o) {
if (o.equals(DoaObserver.NEED_TO_REFRESH)){
bindData();
}
}
private class StoreDefaultData extends AsyncTask<Void, Void, Void>{
ProgressDialog mProgressDialog;
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
mProgressDialog = new ProgressDialog(MainActivity.this);
mProgressDialog.setTitle(getString(R.string.notify_input_data));
mProgressDialog.setMessage(getString(R.string.text_please_wait));
mProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
// TODO Auto-generated method stub
for (int i = 0; i < DefaultData.defaultData.length; i++) {
doaHelper.insert(DoaModel.getDoaModel(DefaultData.defaultData[i][0],
DefaultData.defaultData[i][1]));
}
listJudul = doaHelper.getAllData();
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
mProgressDialog.dismiss();
listJudulAdapter = new ListJudulAdapter(MainActivity.this, listJudul);
lvJudul.setAdapter(listJudulAdapter);
}
}
#Override
protected void onDestroy() {
if (doaHelper != null){
doaHelper.close();
}
super.onDestroy();
}
public static void showMeaningDialog(final Activity activity, final DoaModel item) {
final Dialog dialog = new Dialog(activity, R.style.AppCompatAlertDialogStyle);
dialog.setContentView(R.layout.dialog_konten);
dialog.setCancelable(true);
TextView txtKonten = (TextView)dialog.findViewById(R.id.txtMeaning);
TextView txtJudul = (TextView)dialog.findViewById(R.id.txtWord);
Button btnTutup = (Button)dialog.findViewById(R.id.btnTutup);
Button btnEdit = (Button)dialog.findViewById(R.id.btnEdit);
txtKonten.setText(item.getKonten());
txtJudul.setText(item.getJudul());
btnEdit.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
//FormInputUpdateActivity.toFormInputUpdate(activity, item);
dialog.dismiss();
}
});
btnTutup.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
dialog.dismiss();
}
});
dialog.show();
}
private void deleteDialog(final int id) {
// TODO Auto-generated method stub
final Dialog dialog = new Dialog(MainActivity.this, R.style.AppCompatAlertDialogStyle);
dialog.setTitle("Hapus");
//dialog.setContentView(R.layout.dialog_delete);
dialog.setCancelable(true);
// Button btnYes = (Button)dialog.findViewById(R.id.btnDeleteYes);
// Button btnCancel = (Button)dialog.findViewById(R.id.btnDeleteCancel);
// btnYes.setOnClickListener(new OnClickListener() {
// public void onClick(View v) {
// // TODO Auto-generated method stub
// doaHelper.delete(id);
// dialog.dismiss();
// Toast.makeText(MainActivity.this, getString(R.string.text_success_delete), Toast.LENGTH_LONG).show();
// application.getDoaObserver().refresh();
// }
// });
//btnCancel.setOnClickListener(new View.OnClickListener() {
// public void onClick(View arg0) {
// TODO Auto-generated method stub
// dialog.dismiss();
// }
//});
dialog.show();
}
public void bindData(){
if (listJudul.size()>0) {
listJudul.clear();
}
listJudul = doaHelper.getAllData();
listJudulAdapter = new ListJudulAdapter(MainActivity.this, listJudul);
lvJudul.setAdapter(listJudulAdapter);
listJudulAdapter.notifyDataSetChanged();
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_activity_main, menu);
SearchManager searchManager =
(SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView =
(SearchView) menu.findItem(R.id.action_search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getComponentName()));
return true;
}
}
This is DoaApplication.java
package id.wdharmana.doahindu.app;
import android.app.Application;
import id.wdharmana.doahindu.model.DoaObserver;
/**
* Created by WDHARMANA on 9/18/2015.
*/
public class DoaApplication extends Application {
DoaObserver doaObserver;
#Override
public void onCreate() {
super.onCreate();
doaObserver = new DoaObserver();
}
public DoaObserver getDoaObserver(){
return doaObserver;
}
}
No error when build. Please tell me if you have some suggestions. Thanks in advance.

Put DoaApplication in your manifest, in the <application> node as android:name="id.wdharmana.doahindu.app.DoaApplication"

Please make sure your AndroidManifest.xml like that:
<application
android:name="id.wdharmana.doahindu.app.DoaApplication"
... >
...
</application>
I think you forgot to add your

Regarding validation of a paint drawn on a canvas in android

Sir, we are developing an app to teach small children write alphabets.. Here we show a screen with two images where one image is on the right side it is just to show the image of the alphabet, and the the other one is a light image where the user can draw on image for practise. I want to validate the image drawn by the user whether he has drawn correctly on the base image or not.!
(Note: I exactly dont know what is the use of "Scaling" which i used in it.)Can i please get a solution because i tried a lot but cudnt get an answer
The code is:
enter code here
package com.example.androidhive;
import com.example.androidhive.ColorPickerDialog.OnColorSelectedListener;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.os.Bundle;
import android.support.v4.view.MotionEventCompat;
import android.util.Log;
import android.view.Display;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.Toast;
import android.widget.ViewFlipper;
import android.widget.SeekBar.OnSeekBarChangeListener;
public class FullImgTwoActivity extends Activity implements OnTouchListener {
int pp;
int pickupLinesItemIndex;
int position;
PaintView paintView;
ViewFlipper layout;
int size = 0;
int progress = 0;
ImageView imageView1;
private Bitmap bmp;
private Bitmap operation;
GetScaling scaling;
#SuppressLint("NewApi")
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.full_image);
paintView = new PaintView(this);
scaling=new GetScaling(this);
layout = (ViewFlipper) findViewById(R.id.view1);
Intent i = getIntent();
position = i.getExtras().getInt("id");
final ImageAdapterTwo imageAdapterTwo = new ImageAdapterTwo(this);
imageView1 = (ImageView) findViewById(R.id.imageView1);
imageView1.setImageResource(imageAdapterTwo.mThumbIdsx[position]);
bmp=imageView1.getDrawingCache();
layout.setBackgroundResource(imageAdapterTwo.mThumbIdsy[position]);
paintView.setLayoutParams(new LinearLayout.LayoutParams(500, 500));
layout.addView(paintView);
ImageView back = (ImageView) findViewById(R.id.imageView3);
back.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
// TODO Auto-generated method stub
if (pickupLinesItemIndex < imageAdapterTwo.mThumbIdsw.length) {
if (position <= 0) {
Toast.makeText(getApplicationContext(), "This is the starting alphabet", 90)
.show();
} else {
imageView1
.setImageResource(imageAdapterTwo.mThumbIdsx[--position]);
layout
.setBackgroundResource(imageAdapterTwo.mThumbIdsy[position]);
}
}
}
});
ImageView nexta = (ImageView) findViewById(R.id.imageView4);
nexta.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if (pickupLinesItemIndex > imageAdapterTwo.mThumbIdsw.length) {
//if (position <=imageAdapter.mThumbIds.length) {
Toast.makeText(getApplicationContext(), "This level is done", 90)
.show();
} else {
imageView1
.setImageResource(imageAdapterTwo.mThumbIdsx[++position]);
layout
.setBackgroundResource(imageAdapterTwo.mThumbIdsy[position]);
//}
}
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
getMenuInflater().inflate(R.menu.home, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case R.id.select_color_menu:
showColorPickerDialogDemo();
break;
case R.id.select_clear_menu:
paintView.clear();
paintView.invalidate();
break;
case R.id.pointers_select_menu:
// pointerDialog();
break;
default:
break;
}
return super.onOptionsItemSelected(item);
}
private void pointerDialog() {
// TODO Auto-generated method stub
final Dialog d = new Dialog(FullImgTwoActivity.this);
d.setTitle("Increase pointer size");
d.setContentView(R.layout.pointerssize);
SeekBar bar = (SeekBar) d.findViewById(R.id.seekBar1);
Button save = (Button) d.findViewById(R.id.save);
Button cancel = (Button) d.findViewById(R.id.cancel);
bar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progresValue,
boolean fromUser) {
progress = progresValue;
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
// Display the value in textview
size = seekBar.getMax();
}
});
save.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
paintView.setSize(progress);
d.dismiss();
}
});
cancel.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
d.dismiss();
}
});
d.show();
}
private void showColorPickerDialogDemo() {
int initialColor = Color.WHITE;
ColorPickerDialog colorpick = new ColorPickerDialog(
FullImgTwoActivity.this, initialColor,
new OnColorSelectedListener() {
#Override
public void onColorSelected(int color) {
paintView.setColo(color);
}
});
colorpick.show();
}
public void Checkimage(View v) {
scaling.checktheimage(imageView1);
scaling.checkpaintimage(paintView);
boolean paint=scaling.bmapaint;
boolean image=scaling.bmapimage;
if(paint!=image){
AlertDialog.Builder al=new AlertDialog.Builder(FullImgTwoActivity.this);
al.setTitle("Please Try Again");
al.setIcon(R.drawable.checkno);
al.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
paintView.clear();
paintView.invalidate();
}
}) ;
al.setNegativeButton("NO",new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Intent in=new Intent(FullImgTwoActivity.this, GridLayoutTwo.class);
startActivity(in);
finish();
}
});
AlertDialog dialog=al.create();
dialog.show();
}else {
AlertDialog.Builder al=new AlertDialog.Builder(FullImgTwoActivity.this);
al.setTitle("Please Go To Next Letter");
al.setIcon(R.drawable.checkno);
al.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Intent in=new Intent(FullImgTwoActivity.this, GridLayoutTwo.class);
startActivity(in);
finish();
}
}) ;
al.setNegativeButton("NO",new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
paintView.clear();
paintView.invalidate();
}
});
AlertDialog dialog=al.create();
dialog.show();
}
}
//#Override
public boolean onCreateOptionsMenu1(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_full_img_two, menu);
return true;
}
#Override
public boolean onTouch(View arg0, MotionEvent arg1) {
// TODO Auto-generated method stub
return false;
}
}

ClassCastException while integrating google plus api inside a fragment

I followed all steps mentioned in developer.google.com to implement the googleplus api in my application.
I'm integrating the googleplus api in the fragment and i'm getting an ClassCastException when i run the code.
My Fragment Class:
import com.digiapes.apeonomy.animation.Positions;
import com.example.apeonomy.R;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.plus.Plus;
import android.animation.ObjectAnimator;
import android.app.Activity;
import android.app.Fragment;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.Toast;
public class Login extends Fragment implements OnGlobalLayoutListener,
OnClickListener, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
EditText UN, Pass;
View loginimage, loginusing, loginlayout;
ImageButton flogin, Glogin;
Button login1;
float f;
Positions pos = new Positions();
String name = "Harsha";
String pass = "hahaha";
private static final int RC_SIGNIN = 0;
private static boolean mSignInClicked;
private GoogleApiClient mGoogleApiClient;
private boolean mIntentInProgress;
private boolean mSignedIn;
private ConnectionResult mConnectionResult;
private Activity c;
private boolean mSignedInClicked;
// Login_Register Lg=new Login_Register();
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View login = inflater.inflate(R.layout.login, container, false);
// TODO Auto-generated method stub
UN = (EditText) login.findViewById(R.id.UsernameL);
Pass = (EditText) login.findViewById(R.id.PassswordL);
loginimage = login.findViewById(R.id.LoginImage);
login1 = (Button) login.findViewById(R.id.Login);
loginusing = login.findViewById(R.id.loginusing);
loginlayout = login.findViewById(R.id.LoginLayout);
f = ((Login_Register) getActivity()).pos.getLIpos();
loginimage.getViewTreeObserver().addOnGlobalLayoutListener(this);
UN.getBackground().setAlpha(50);
Pass.getBackground().setAlpha(50);
ObjectAnimator.ofFloat(loginusing, View.ALPHA, 0, 1).setDuration(1000)
.start();
ObjectAnimator.ofFloat(loginlayout, View.ALPHA, 0, 1).setDuration(1000)
.start();
login.findViewById(R.id.googlepluslog).setOnClickListener(this);
login.findViewById(R.id.facebooklog).setOnClickListener(this);
return login;
}
#Override
public void onGlobalLayout() {
pos.setLIpos(loginimage.getY());
// TODO Auto-generated method stub
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
ObjectAnimator
.ofFloat(loginimage, View.TRANSLATION_Y,
f - loginimage.getY() - 130, 0).setDuration(300)
.start();
login1.setOnClickListener(this);
}
#Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks((ConnectionCallbacks) getActivity().getApplicationContext())
.addOnConnectionFailedListener(this).addApi(Plus.API, null)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
}
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.Login:
if (UN.getText().length() == 0 || Pass.getText().length() == 0) {
Toast.makeText(getActivity(),
"Please enter valid Username and Password",
Toast.LENGTH_SHORT).show();
} else if (UN.getText().toString().equals(name)
&& Pass.getText().toString().equals(pass)) {
Intent intent = new Intent(getActivity()
.getApplicationContext(), Main.class);
startActivity(intent);
}
break;
case R.id.facebooklog:
break;
case R.id.googlepluslog:
signInWithGplus();
break;
}
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
if (requestCode == RC_SIGNIN) {
mIntentInProgress = false;
if (!mGoogleApiClient.isConnecting()) {
mGoogleApiClient.connect();
}
}
}
private void signInWithGplus() {
// TODO Auto-generated method stub
if (!mGoogleApiClient.isConnecting()) {
mSignedIn = true;
resolveSignInerror();
}
}
private void resolveSignInerror() {
// TODO Auto-generated method stub
if (mConnectionResult.hasResolution()) {
try {
mIntentInProgress = true;
mConnectionResult.startResolutionForResult(c, RC_SIGNIN);
} catch (SendIntentException e) {
mIntentInProgress = false;
mGoogleApiClient.connect();
}
}
}
#Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub
if (!result.hasResolution()) {
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), c, 0)
.show();
return;
}
if(!mIntentInProgress){
mConnectionResult=result;
if(mSignedInClicked)
resolveSignInerror();
}
}
#Override
public void onConnected(Bundle arg0) {
mSignedInClicked=false;
Toast.makeText(c, "Connected", Toast.LENGTH_SHORT).show();
// TODO Auto-generated method stub
}
#Override
public void onConnectionSuspended(int arg0) {
// TODO Auto-generated method stub
mGoogleApiClient.connect();
}
#Override
public void onStart() {
// TODO Auto-generated method stub
super.onStart();
mGoogleApiClient.connect();
}
#Override
public void onStop() {
// TODO Auto-generated method stub
super.onStop();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
}
}
Getting error at this line:
mGoogleApiClient = new GoogleApiClient.Builder(getActivity())
.addConnectionCallbacks((ConnectionCallbacks) getActivity().getApplicationContext())
.addOnConnectionFailedListener(this).addApi(Plus.API, null)
.addScope(Plus.SCOPE_PLUS_LOGIN).build();
Logcat:
Solution given in Error implementing GoogleApiClient Builder for Android development didn't workout for me...

.addConnectionCallbacks((ConnectionCallbacks) getActivity().getApplicationContext())
That's wrong, the method accepts a class that implements GoogleApiClient.ConnectionCallbacks, use your Fragment instead of getActivity().getApplicationContext().

Android value of volatile boolean not getting updated in thread when I use setRequestedOrientation

I was trying to run some test on SurfaceViewer with SurfaceViewer having its own thread and everything worked just fine. Then I changed my code to change orientation of screen using setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
In the code below: I have an activity which uses Fragments. I have another class which extends SurfaceView class. Problem starts when I add setRequestedOrientation. After I add setRequestedOrientation. Value of running at in FastRender Class run method is always false. If I comment line with setRequestedOrientation , it runs fines.
package com.example.testpractise;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.content.res.AssetManager;
import android.graphics.Canvas;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
public class SurfaceViewTest extends ActionBarActivity {
static int counter;
static {
Log.i("Intializing class Surface Test","counter");
System.out.println("Statrting here");
}
#Override
protected void onRestart() {
// TODO Auto-generated method stub
super.onRestart();
counter++;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
counter++;
Log.i("Counter vlase",String.valueOf(counter));
System.out.println("value of counter"+counter);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_surface_view_test);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.surface_view_test, 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);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
FastRenderView renderView;
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//View rootView = inflater.inflate(
// R.layout.fragment_surface_view_test, container, false);
getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
BitmapCollection.initializeBitMapCollection(getActivity());
renderView = new FastRenderView(getActivity());
return renderView;
}
#Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
renderView.resume();
}
#Override
public void onPause() {
// TODO Auto-generated method stub
super.onPause();
renderView.pause();
}
static class FastRenderView extends SurfaceView implements Runnable {
Thread renderThread = null;
SurfaceHolder holder;
static volatile boolean running = false;
int x=0;
int y=0;
public FastRenderView(Context context) {
super(context);
// TODO Auto-generated constructor stub
holder = getHolder();
}
public void pause()
{
running = false;
while(true)
{
try{
renderThread.join();
}catch (InterruptedException i){
}
}
}
public void resume()
{
running = true;
renderThread = new Thread(this);
renderThread.setName("RendererThread");
renderThread.start();
running=true;
}
#Override
public void run() {
// TODO Auto-generated method stub
int sleepCounter=0;
while(!running)
{
try {
if(sleepCounter <5)
{
sleepCounter++;
Thread.sleep(5000);
}else{
break;
}
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
while(running)
{
if(!holder.getSurface().isValid())
{
continue;
}
Canvas canvas=holder.lockCanvas();
canvas.drawRGB(255, 0, 0);
holder.unlockCanvasAndPost(canvas);
}
}
}
}
}
Sorry if my question doesn't match the format. This is my first time. Any pointers on what is wrong and why would be greatly appreciated.
Thanks

If you just want to lock the Activity to landscape, you can do it in Manifest by adding the android:screenOrientation="landscape" attribute to the activity element.

Facebook SSO not working in android

I used the following code to Login through Facebook in my app. I need to do this with Facebook SSO. I have the correct app_id.
package com.fb.sso;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import com.facebook.android.AsyncFacebookRunner;
import com.facebook.android.AsyncFacebookRunner.RequestListener;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
import com.facebook.android.Util;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.TextView;
public class FBSSOActivity extends Activity {
/** Called when the activity is first created. */
public static final String APP_ID = "my_app_id";
private static final String[] PERMISSIONS = new String[] {
"publish_stream", "read_stream", "offline_access" };
private TextView mText;
private Handler mHandler = new Handler();
private Facebook mFacebook;
private AsyncFacebookRunner mAsyncRunner;
byte[] raw;
private SharedPreferences mPrefs;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (APP_ID == null) {
Util.showAlert(this, "Warning",
"Facebook Applicaton ID must be set...");
}
// Initialize the content view
setContentView(R.layout.main);
// Initialize the Facebook session
mFacebook = new Facebook(APP_ID);
mAsyncRunner = new AsyncFacebookRunner(mFacebook);
mPrefs = getPreferences(MODE_PRIVATE);
String access_token = mPrefs.getString("access_token", null);
long expires = mPrefs.getLong("access_expires", 0);
if (access_token != null) {
mFacebook.setAccessToken(access_token);
}
if (expires != 0) {
mFacebook.setAccessExpires(expires);
}
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Log.d("FB Sample App", "onActivityResult(): " + requestCode);
mFacebook.authorizeCallback(requestCode, resultCode, data);
}
private class LogoutRequestListener implements RequestListener {
#Override
public void onComplete(String response, Object state) {
// TODO Auto-generated method stub
Log.v("comes here>>.","sucess");
// Only the original owner thread can touch its views
FBSSOActivity.this.runOnUiThread(new Runnable() {
public void run() {
mText.setText("Thanks for using FB Sample App. Bye bye...");
}
});
// Dispatch on its own thread
mHandler.post(new Runnable() {
public void run() {
}
});
}
#Override
public void onIOException(IOException e, Object state) {
// TODO Auto-generated method stub
}
#Override
public void onFileNotFoundException(FileNotFoundException e,
Object state) {
// TODO Auto-generated method stub
}
#Override
public void onMalformedURLException(MalformedURLException e,
Object state) {
// TODO Auto-generated method stub
}
#Override
public void onFacebookError(FacebookError e, Object state) {
// TODO Auto-generated method stub
Log.v("facebook error","fb error");
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main_menu, menu);
return true;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
MenuItem loginItem = menu.findItem(R.id.login);
if (mFacebook.isSessionValid()) {
loginItem.setTitle("Logout");
} else {
loginItem.setTitle("Login");
}
loginItem.setEnabled(true);
return super.onPrepareOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
// Login/logout toggle
case R.id.login:
if (!mFacebook.isSessionValid()) {
mFacebook.authorize(this, new DialogListener() {
#Override
public void onComplete(Bundle values) {
// TODO Auto-generated method stub
Log.v("Entered ", "No ERRRRRRRRRRRR");
SharedPreferences.Editor editor = mPrefs.edit();
editor.putString("access_token",
mFacebook.getAccessToken());
editor.putLong("access_expires",
mFacebook.getAccessExpires());
editor.commit();
Intent i=new Intent(FBSSOActivity.this,second.class);
startActivity(i);
}
#Override
public void onFacebookError(FacebookError e) {
// TODO Auto-generated method stub
}
#Override
public void onError(DialogError e) {
// TODO Auto-generated method stub
}
#Override
public void onCancel() {
// TODO Auto-generated method stub
}
});
}else{
mFacebook.setAccessToken(null);
mFacebook.setAccessExpires(0);
AsyncFacebookRunner asyncRunner = new AsyncFacebookRunner(mFacebook);
asyncRunner.logout(this.getBaseContext(), new LogoutRequestListener());
}
break;
default:
return false;
}
return true;
}
}
I logged in to preinstalled Facebook app in my device. And I got this screen only.
And in my Logcat this line appears.
09-28 15:18:24.652: E/ActivityThread(1201): Failed to find provider info for com.facebook.katana.provider.AttributionIdProvider
If I logged out from my preinstalled Facebook app, my application prompts me to login, asking the credentials. That time also, the empty screen appears.But in the preinstalled Facebook app, I can see my updates.( I get Logged in).
Update:
Right now I'm checking the app only. I have not published it to market. I got the key by referring this site http://sean.lyn.ch/2011/07/android-the-facebook-sdk-sso-and-you/. And I added it to the app, like this.
Update 2:
Now I got these lines in logcat:
09-29 12:00:12.552: I/ActivityManager(73): Starting activity: Intent { cmp=com.facebook.katana/.ProxyAuth (has extras) }
09-29 12:00:13.022: I/ActivityManager(73): Displayed activity com.facebook.katana/.ProxyAuth: 436 ms (total 436 ms)
09-29 12:00:15.032: W/InputManagerService(73): Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy#434b2e88 (uid=10031 pid=2233)
09-29 12:00:15.032: W/IInputConnectionWrapper(2233): showStatusIcon on inactive InputConnection