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How to detect if it is Recents button, Multi Window mode or home button onUserLeaveHint()

In my app, I am relying on onUserLeaveHint() method when the user presses the home button, but this method is also being called when you are starting multi window mode in android 7.0 by long pressing "recents button" (which I don't want to perform same thing that I do when home button been pressed). So I want to know if there is a way to detect which is which. Cheers!
Note: onMultiWindowModeChanged() being called after onUserLeaveHint()

I think this is what you're looking for.
HomeWatcher mHomeWatcher = new HomeWatcher(this);
mHomeWatcher.setOnHomePressedListener(new OnHomePressedListener() {
#Override
public void onHomePressed() {
// do something here...
}
#Override
public void onHomeLongPressed() {
}
});
mHomeWatcher.startWatch();
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.Log;
public class HomeWatcher {
static final String TAG = "hg";
private Context mContext;
private IntentFilter mFilter;
private OnHomePressedListener mListener;
private InnerRecevier mRecevier;
public HomeWatcher(Context context) {
mContext = context;
mFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
}
public void setOnHomePressedListener(OnHomePressedListener listener) {
mListener = listener;
mRecevier = new InnerRecevier();
}
public void startWatch() {
if (mRecevier != null) {
mContext.registerReceiver(mRecevier, mFilter);
}
}
public void stopWatch() {
if (mRecevier != null) {
mContext.unregisterReceiver(mRecevier);
}
}
class InnerRecevier extends BroadcastReceiver {
final String SYSTEM_DIALOG_REASON_KEY = "reason";
final String SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS = "globalactions";
final String SYSTEM_DIALOG_REASON_LONG_PRESS = "assist";
final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
#Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
if (reason != null) {
Log.e(TAG, "action:" + action + ",reason:" + reason);
if (mListener != null) {
if (reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {
mListener.onHomePressed();
} else if (reason.equals(SYSTEM_DIALOG_REASON_LONG_PRESS)) {
mListener.onHomeLongPressed();
}
}
}
}
}
}
}
public interface OnHomePressedListener {
public void onHomePressed();
public void onHomeLongPressed();
}

android opencv camera app hanging

I am creating an android camera app using opencv. First I make it like when I click the start button, it start taking pictures and in every second takes a picture and store it in storage. It works perfectly for me.
Then I tried to make it some tricky by forcing it to take 5 pictures in a second it works well.
But actually I faced problem when I make it to 20 pictures in 1 second. It did not work. The app hangs as soon as I click on the start button. I don't know why. But I think the problem is in threading.
Can someone help me how i will do it.
I have two java files in my project and here is the code.
package org.opencv.samples.tutorial3;
import java.io.FileOutputStream;
import java.util.List;
import org.opencv.android.JavaCameraView;
import android.content.Context;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.Size;
import android.util.AttributeSet;
import android.util.Log;
public class Tutorial3View extends JavaCameraView implements PictureCallback {
private static final String TAG = "Sample::Tutorial3View";
private String mPictureFileName;
public Tutorial3View(Context context, AttributeSet attrs) {
super(context, attrs);
}
public List<String> getEffectList() {
return mCamera.getParameters().getSupportedColorEffects();
}
public boolean isEffectSupported() {
return (mCamera.getParameters().getColorEffect() != null);
}
public String getEffect() {
return mCamera.getParameters().getColorEffect();
}
public void setEffect(String effect) {
Camera.Parameters params = mCamera.getParameters();
params.setColorEffect(effect);
mCamera.setParameters(params);
}
public List<Size> getResolutionList() {
return mCamera.getParameters().getSupportedPreviewSizes();
}
public void setResolution(Size resolution) {
disconnectCamera();
mMaxHeight = resolution.height;
mMaxWidth = resolution.width;
connectCamera(getWidth(), getHeight());
}
public Size getResolution() {
return mCamera.getParameters().getPreviewSize();
}
public void takePicture(final String fileName) {
Log.i(TAG, "Taking picture");
this.mPictureFileName = fileName;
// Postview and jpeg are sent in the same buffers if the queue is not empty when performing a capture.
// Clear up buffers to avoid mCamera.takePicture to be stuck because of a memory issue
mCamera.setPreviewCallback(null);
// PictureCallback is implemented by the current class
mCamera.takePicture(null, null, this);
}
#Override
public void onPictureTaken(byte[] data, Camera camera) {
Log.i(TAG, "Saving a bitmap to file");
// The camera preview was automatically stopped. Start it again.
mCamera.startPreview();
mCamera.setPreviewCallback(this);
// Write the image in a file (in jpeg format)
try {
FileOutputStream fos = new FileOutputStream(mPictureFileName);
fos.write(data);
fos.close();
} catch (java.io.IOException e) {
Log.e("PictureDemo", "Exception in photoCallback", e);
}
}
}
And the second one is:
package org.opencv.samples.tutorial3;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.ListIterator;
import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewFrame;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.OpenCVLoader;
import org.opencv.core.Mat;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewListener2;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.hardware.Camera.Size;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.SubMenu;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.Toast;
public class Tutorial3Activity extends Activity implements CvCameraViewListener2 {
private static final String TAG = "OCVSample::Activity";
private Tutorial3View mOpenCvCameraView;
private List<Size> mResolutionList;
private MenuItem[] mEffectMenuItems;
private SubMenu mColorEffectsMenu;
private MenuItem[] mResolutionMenuItems;
private SubMenu mResolutionMenu;
Thread thread;
Button start,stop;
boolean loop=false;
private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {
#Override
public void onManagerConnected(int status) {
switch (status) {
case LoaderCallbackInterface.SUCCESS:
{
Log.i(TAG, "OpenCV loaded successfully");
mOpenCvCameraView.enableView();
} break;
default:
{
super.onManagerConnected(status);
} break;
}
}
};
public Tutorial3Activity() {
Log.i(TAG, "Instantiated new " + this.getClass());
}
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "called onCreate");
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setContentView(R.layout.tutorial3_surface_view);
start=(Button)findViewById(R.id.button2) ;
start.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
loop=true;
thread = new Thread(new task());
thread.start();
}
});
stop=(Button) findViewById(R.id.button);
stop.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
loop=false;
}
});
mOpenCvCameraView = (Tutorial3View) findViewById(R.id.tutorial3_activity_java_surface_view);
mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE);
mOpenCvCameraView.setCvCameraViewListener(this);
}
#Override
public void onPause()
{
super.onPause();
if (mOpenCvCameraView != null)
mOpenCvCameraView.disableView();
}
#Override
public void onResume()
{
super.onResume();
if (!OpenCVLoader.initDebug()) {
Log.d(TAG, "Internal OpenCV library not found. Using OpenCV Manager for initialization");
OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, this, mLoaderCallback);
} else {
Log.d(TAG, "OpenCV library found inside package. Using it!");
mLoaderCallback.onManagerConnected(LoaderCallbackInterface.SUCCESS);
}
}
public void onDestroy() {
super.onDestroy();
if (mOpenCvCameraView != null)
mOpenCvCameraView.disableView();
}
public void onCameraViewStarted(int width, int height) {
}
public void onCameraViewStopped() {
}
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
return inputFrame.rgba();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
List<String> effects = mOpenCvCameraView.getEffectList();
if (effects == null) {
Log.e(TAG, "Color effects are not supported by device!");
return true;
}
mColorEffectsMenu = menu.addSubMenu("Color Effect");
mEffectMenuItems = new MenuItem[effects.size()];
int idx = 0;
ListIterator<String> effectItr = effects.listIterator();
while(effectItr.hasNext()) {
String element = effectItr.next();
mEffectMenuItems[idx] = mColorEffectsMenu.add(1, idx, Menu.NONE, element);
idx++;
}
mResolutionMenu = menu.addSubMenu("Resolution");
mResolutionList = mOpenCvCameraView.getResolutionList();
mResolutionMenuItems = new MenuItem[mResolutionList.size()];
ListIterator<Size> resolutionItr = mResolutionList.listIterator();
idx = 0;
while(resolutionItr.hasNext()) {
Size element = resolutionItr.next();
mResolutionMenuItems[idx] = mResolutionMenu.add(2, idx, Menu.NONE,
Integer.valueOf(element.width).toString() + "x" + Integer.valueOf(element.height).toString());
idx++;
}
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
Log.i(TAG, "called onOptionsItemSelected; selected item: " + item);
if (item.getGroupId() == 1)
{
mOpenCvCameraView.setEffect((String) item.getTitle());
Toast.makeText(this, mOpenCvCameraView.getEffect(), Toast.LENGTH_SHORT).show();
}
else if (item.getGroupId() == 2)
{
int id = item.getItemId();
Size resolution = mResolutionList.get(id);
mOpenCvCameraView.setResolution(resolution);
resolution = mOpenCvCameraView.getResolution();
String caption = Integer.valueOf(resolution.width).toString() + "x" + Integer.valueOf(resolution.height).toString();
Toast.makeText(this, caption, Toast.LENGTH_SHORT).show();
}
return true;
}
class task implements Runnable {
public void run() {
while (loop) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss");
String currentDateandTime = sdf.format(new Date());
final String fileName = Environment.getExternalStorageDirectory().getPath() +
"/sample_picture_" + currentDateandTime + ".jpg";
mOpenCvCameraView.takePicture(fileName);
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(Tutorial3Activity.this, fileName + " saved", Toast.LENGTH_SHORT).show();
}
});
try {
thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
Note: The above code works well for taking 5 pictures in 1 second. But when I change thread.sleep(200) to thread.sleep(50) for taking 20 pictures in 1 second it hangs.

Google recognizer and pocketsphinx in two different classes, how to loop them?

Yesterday i ask a simplified question of my problem, but think its too simplified.
What my programm should do, is to hear a keyword and when he hear it, he should listen to what i said. (like if you told to siri or google now, by saying siri or ok google).
I'm using pocketsphinx for the keyword and the google speechrecognizer for the longer parts. It works, but only for one time. The pocketsphinx is in the MainActivity and the google recognizer is in an extra class (Jarvis).
The programm starts with the pocketsphinx listener, when he hear the KEYPHRASE, he starts the google listener by calling jarvis.startListener() (by the next()-method) and there is the problem, when the googlelistener is done, i dont come back from the Jarvis-class to the MainActivity to call the next() method again.
(when the google recognizer is done, the last things he do is in the onResult() in Jarvis-class, but from there i cant call the next()-method from MainActivity-class)
MainActivity
package com.example.superuser.jarvis;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.speech.RecognitionListener;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.io.File;
import java.io.IOException;
import edu.cmu.pocketsphinx.Assets;
import edu.cmu.pocketsphinx.Hypothesis;
import edu.cmu.pocketsphinx.SpeechRecognizer;
import edu.cmu.pocketsphinx.SpeechRecognizerSetup;
import static android.widget.Toast.makeText;
import static edu.cmu.pocketsphinx.SpeechRecognizerSetup.defaultSetup;
public class MainActivity extends Activity implements edu.cmu.pocketsphinx.RecognitionListener {
private String LOG_TAG = "Jarvis_hears_anything";
private TextView tv;
private Jarvis jarvis;
private boolean wannahearjarvis = false;
/* Named searches allow to quickly reconfigure the decoder */
private static final String KWS_SEARCH = "wakeup";
/* Keyword we are looking for to activate menu */
private static final String KEYPHRASE = "jarvis";
private edu.cmu.pocketsphinx.SpeechRecognizer recognizer;
//private HashMap<String, Integer> captions;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Button button = (Button) findViewById(R.id.b1);
tv = (TextView) findViewById(R.id.tv1);
//captions = new HashMap<String, Integer>();
//captions.put(KWS_SEARCH, R.string.kws_caption);
jarvis = new Jarvis(getApplicationContext());
new AsyncTask<Void, Void, Exception>() {
#Override
protected Exception doInBackground(Void... params) {
try {
Assets assets = new Assets(MainActivity.this);
File assetDir = assets.syncAssets();
setupRecognizer(assetDir);
} catch (IOException e) {
return e;
}
return null;
}
#Override
protected void onPostExecute(Exception result) {
if (result != null) {
((TextView) findViewById(R.id.tv1))
.setText("Failed to init recognizer " + result);
} else {
//switchSearch(KWS_SEARCH);
recognizer.startListening(KWS_SEARCH);
}
}
}.execute();
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(getApplicationContext(), "geht", Toast.LENGTH_SHORT).show();
}
});
}
public void next(){
if (wannahearjarvis){
recognizer.startListening(KWS_SEARCH);
wannahearjarvis = false;
}
else{
jarvis.startListening();
wannahearjarvis = true;
}
}
#Override
public void onDestroy() {
super.onDestroy();
recognizer.cancel();
recognizer.shutdown();
}
/**
* In partial result we get quick updates about current hypothesis. In
* keyword spotting mode we can react here, in other modes we need to wait
* for final result in onResult.
*/
#Override
public void onPartialResult(Hypothesis hypothesis) {
if (hypothesis == null)
return;
String text = hypothesis.getHypstr();
if (text.equals(KEYPHRASE)){
tv.append("found");
recognizer.stop();
//switchSearch(KWS_SEARCH);
}
else {
//((TextView) findViewById(R.id.tv1)).append(text+"PR");
//Log.i(LOG_TAG, text+"PR");
}
}
/**
* This callback is called when we stop the recognizer.
*/
#Override
public void onResult(Hypothesis hypothesis) {
//((TextView) findViewById(R.id.tv1)).setText("");
((TextView) findViewById(R.id.tv1)).append("oR");
if (hypothesis != null) {
String text = hypothesis.getHypstr();
makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show();
}
next();
}
#Override
public void onBeginningOfSpeech() {
}
/**
* We stop recognizer here to get a final result
*/
#Override
public void onEndOfSpeech() {
if (!recognizer.getSearchName().equals(KWS_SEARCH)){
tv.append("fuck");
}
//switchSearch(KWS_SEARCH);
}
/*private void switchSearch(String searchName) {
recognizer.stop();
// If we are not spotting, start listening with timeout (10000 ms or 10 seconds).
if (searchName.equals(KWS_SEARCH))
recognizer.startListening(searchName);
else
recognizer.startListening(searchName, 10000);
//String caption = getResources().getString(captions.get(searchName));
//((TextView) findViewById(R.id.tv1)).setText(caption);
//((TextView) findViewById(R.id.tv1)).append(caption);
}*/
private void setupRecognizer(File assetsDir) throws IOException {
// The recognizer can be configured to perform multiple searches
// of different kind and switch between them
recognizer = defaultSetup()
.setAcousticModel(new File(assetsDir, "en-us-ptm"))
.setDictionary(new File(assetsDir, "cmudict-en-us.dict"))
// To disable logging of raw audio comment out this call (takes a lot of space on the device)
.setRawLogDir(assetsDir)
// Threshold to tune for keyphrase to balance between false alarms and misses
.setKeywordThreshold(1e-20f)
// Use context-independent phonetic search, context-dependent is too slow for mobile
.setBoolean("-allphone_ci", true)
.getRecognizer();
recognizer.addListener(this);
/** In your application you might not need to add all those searches.
* They are added here for demonstration. You can leave just one.
*/
// Create keyword-activation search.
recognizer.addKeyphraseSearch(KWS_SEARCH, KEYPHRASE);
}
#Override
public void onError(Exception error) {
((TextView) findViewById(R.id.tv1)).setText(error.getMessage());
}
#Override
public void onTimeout() {
//switchSearch(KWS_SEARCH);
}
}
Jarvis
package com.example.superuser.jarvis;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.os.Bundle;
import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;
import android.widget.Toast;
import java.util.ArrayList;
public class Jarvis implements RecognitionListener{
private AudioManager audiom;
private SpeechRecognizer speech;
private Intent recogIntent;
private Toast m;
private Context c;
private String text;
public Jarvis(Context context){
speech = SpeechRecognizer.createSpeechRecognizer(context);
speech.setRecognitionListener(this);
recogIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
recogIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_PREFERENCE, "de");
//recogIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, context.getPackageName());
m = new Toast(context);
c=context;
}
public void startListening(){
speech.startListening(recogIntent);
}
public void destroy(){
speech.stopListening();
speech.cancel();
speech.destroy();
}
#Override
public void onReadyForSpeech(Bundle params) {
}
#Override
public void onBeginningOfSpeech() {
}
#Override
public void onRmsChanged(float rmsdB) {
}
#Override
public void onBufferReceived(byte[] buffer) {
}
#Override
public void onEndOfSpeech() {
}
#Override
public void onError(int error) {
}
#Override
public void onResults(Bundle results) {
ArrayList<String> matches = results
.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
Toast.makeText(c, matches.get(0), Toast.LENGTH_LONG).show();
speech.cancel();
//tried
//MainActivity m = new MainActivity();
//m.next();
//but got a Nullpointer Exception
}
#Override
public void onPartialResults(Bundle partialResults) {
}
#Override
public void onEvent(int eventType, Bundle params) {
}
}

You can store reference to the main activity in Jarvis object in a field:
class Jarvis {
....
private MainActivity m;
....
public Jarvis(MainActivity m) {
this.m = m;
}
....
public void onResults(Bundle results) {
....
m.next();
}
You can also send intents to the main activity as described here. This might be overkill in your case though.

how to call onOptionsItemSelected on a different activity

I have an activity with uses onOptionsItemSelected(MenuItem item) method in FolderActivity and I want to call this method on another activity (MainActivity)
the main activity uses CMU Sphinx - Speech Recognition Toolkit.
I need to call some methods from FolderActivity to MainActivity.
package com.evolution.filemanager.folders;
import static android.widget.Toast.makeText;
import java.io.File;
import java.util.ArrayList;
import android.annotation.TargetApi;
import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;
import com.evolution.filemanager.FileManagerApplication;
import com.evolution.filemanager.about.AboutActivity;
import com.evolution.filemanager.clipboard.Clipboard;
import com.evolution.filemanager.clipboard.Clipboard.ClipboardListener;
import com.evolution.filemanager.clipboard.ClipboardFileAdapter;
import com.evolution.filemanager.favourites.FavouritesManager;
import com.evolution.filemanager.favourites.FavouritesManager.FavouritesListener;
import com.evolution.filemanager.nav_drawer.NavDrawerAdapter;
import com.evolution.utils.FontApplicator;
import com.evolution.utils.ListViewUtils;
import edu.cmu.pocketsphinx.demo.R;
public class FolderActivity extends Activity implements OnItemClickListener, ClipboardListener, FavouritesListener
{
public static class FolderNotOpenException extends Exception
{
}
private static final String LOG_TAG = "Main Activity";
public static final String EXTRA_DIR = FolderFragment.EXTRA_DIR;
DrawerLayout drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle;
File lastFolder=null;
private FontApplicator fontApplicator;
public static Activity FOLDERACTIVITY;
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main_folder);
setupDrawers();
Clipboard.getInstance().addListener(this);
FOLDERACTIVITY = this;
fontApplicator = new FontApplicator(getApplicationContext(), "Roboto_Light.ttf").applyFont(getWindow().getDecorView());
}
public FontApplicator getFontApplicator()
{
return fontApplicator;
}
#Override
protected void onDestroy()
{
Clipboard.getInstance().removeListener(this);
FileManagerApplication application = (FileManagerApplication) getApplication();
application.getFavouritesManager().removeFavouritesListener(this);
super.onDestroy();
}
public void setLastFolder(File lastFolder)
{
this.lastFolder = lastFolder;
}
#Override
protected void onPause()
{
if (lastFolder != null)
{
FileManagerApplication application = (FileManagerApplication) getApplication();
application.getAppPreferences().setStartFolder(lastFolder).saveChanges(getApplicationContext());
Log.d(LOG_TAG, "Saved last folder "+lastFolder.toString());
}
super.onPause();
}
public void setActionbarVisible(boolean visible)
{
ActionBar actionBar = getActionBar();
if (actionBar == null) return;
if (visible)
{
actionBar.show();
setSystemBarTranslucency(false);
}
else
{
actionBar.hide();
setSystemBarTranslucency(true);
}
}
#TargetApi(Build.VERSION_CODES.KITKAT)
protected void setSystemBarTranslucency(boolean translucent)
{
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) return;
if (translucent)
{
getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
}
else
{
WindowManager.LayoutParams params = getWindow().getAttributes();
params.flags &= (~WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
getWindow().setAttributes(params);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
}
}
public void setupDrawers()
{
this.drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.drawable.ic_drawer, R.string.open_drawer, R.string.close_drawer)
{
boolean actionBarShown = false;
#Override
public void onDrawerOpened(View drawerView)
{
makeText(getApplicationContext(), "drawer open", Toast.LENGTH_SHORT).show();
super.onDrawerOpened(drawerView);
setActionbarVisible(true);
invalidateOptionsMenu();
}
#Override
public void onDrawerClosed(View drawerView)
{
makeText(getApplicationContext(), "drawer close", Toast.LENGTH_SHORT).show();
actionBarShown=false;
super.onDrawerClosed(drawerView);
invalidateOptionsMenu();
}
#Override
public void onDrawerSlide(View drawerView, float slideOffset)
{
super.onDrawerSlide(drawerView, slideOffset);
if (slideOffset > 0 && actionBarShown == false)
{
actionBarShown = true;
setActionbarVisible(true);
}
else if (slideOffset <= 0) actionBarShown = false;
}
};
drawerLayout.setDrawerListener(actionBarDrawerToggle);
drawerLayout.setDrawerShadow(R.drawable.drawer_shadow, Gravity.START);
drawerLayout.setFocusableInTouchMode(false);
// drawerLayout.setDrawerShadow(R.drawable.drawer_shadow, Gravity.END);
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
setupNavDrawer();
setupClipboardDrawer();
}
#Override
public void onBackPressed()
{
if (drawerLayout.isDrawerOpen(GravityCompat.START))
drawerLayout.closeDrawer(GravityCompat.START);
else if (drawerLayout.isDrawerOpen(GravityCompat.END))
drawerLayout.closeDrawer(GravityCompat.END);
else
super.onBackPressed();
}
void setupNavDrawer()
{
FileManagerApplication application = (FileManagerApplication) getApplication();
// add listview header to push items below the actionbar
ListView navListView = (ListView) findViewById(R.id.listNavigation);
ListViewUtils.addListViewPadding(navListView, this, true);
loadFavourites(application.getFavouritesManager());
application.getFavouritesManager().addFavouritesListener(this);
}
void setupClipboardDrawer()
{
// add listview header to push items below the actionbar
ListView clipboardListView = (ListView) findViewById(R.id.listClipboard);
ListViewUtils.addListViewHeader(clipboardListView, this);
onClipboardContentsChange(Clipboard.getInstance());
}
void loadFavourites(FavouritesManager favouritesManager)
{
ListView listNavigation = (ListView) findViewById(R.id.listNavigation);
NavDrawerAdapter navDrawerAdapter = new NavDrawerAdapter(this, new ArrayList<NavDrawerAdapter.NavDrawerItem>(favouritesManager.getFolders()));
navDrawerAdapter.setFontApplicator(fontApplicator);
listNavigation.setAdapter(navDrawerAdapter);
listNavigation.setOnItemClickListener(this);
}
#Override
protected void onPostCreate(Bundle savedInstanceState)
{
super.onPostCreate(savedInstanceState);
actionBarDrawerToggle.syncState();
if (getFragmentManager().findFragmentById(R.id.fragment) == null)
{
FolderFragment folderFragment = new FolderFragment();
if (getIntent().hasExtra(EXTRA_DIR))
{
Bundle args = new Bundle();
args.putString(FolderFragment.EXTRA_DIR, getIntent().getStringExtra(EXTRA_DIR));
folderFragment.setArguments(args);
}
getFragmentManager()
.beginTransaction()
.replace(R.id.fragment, folderFragment)
.commit();
}
}
#Override
public void onConfigurationChanged(Configuration newConfig)
{
makeText(getApplicationContext(), "unsa ni?", Toast.LENGTH_SHORT).show();
super.onConfigurationChanged(newConfig);
actionBarDrawerToggle.onConfigurationChanged(newConfig);
}
#Override
public boolean onOptionsItemSelected(MenuItem item)
{
makeText(getApplicationContext(), item.toString(), Toast.LENGTH_SHORT).show();
if (actionBarDrawerToggle.onOptionsItemSelected(item))
return true;
switch (item.getItemId())
{
case R.id.menu_about:
startActivity(new Intent(getApplicationContext(), AboutActivity.class));
return true;
}
return super.onOptionsItemSelected(item);
}
public void showFragment(Fragment fragment)
{
getFragmentManager()
.beginTransaction()
.addToBackStack(null)
.replace(R.id.fragment, fragment)
.commit();
}
public void goBack()
{
getFragmentManager().popBackStack();
}
#Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public FolderFragment getFolderFragment()
{
Fragment fragment = getFragmentManager().findFragmentById(R.id.fragment);
if (fragment instanceof FolderFragment)
return (FolderFragment) fragment;
else return null;
}
public File getCurrentFolder() throws FolderNotOpenException
{
FolderFragment folderFragment = getFolderFragment();
if (folderFragment == null)
throw new FolderNotOpenException();
else return folderFragment.currentDir;
}
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3)
{
switch (arg0.getId())
{
case R.id.listNavigation:
NavDrawerAdapter.NavDrawerItem item = (NavDrawerAdapter.NavDrawerItem) arg0.getItemAtPosition(arg2);
if (item.onClicked(this))
drawerLayout.closeDrawers();
break;
case R.id.listClipboard:
FolderFragment folderFragment = getFolderFragment();
if (folderFragment != null)
{
// TODO: paste single file
}
break;
default:
break;
}
}
public File getLastFolder()
{
return lastFolder;
}
#Override
public void onClipboardContentsChange(Clipboard clipboard)
{
invalidateOptionsMenu();
ListView clipboardListView = (ListView) findViewById(R.id.listClipboard);
if (clipboard.isEmpty() && drawerLayout != null)
drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED, Gravity.END);
else
{
drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED, Gravity.END);
FileManagerApplication application = (FileManagerApplication) getApplication();
if (clipboardListView != null)
{
ClipboardFileAdapter clipboardFileAdapter = new ClipboardFileAdapter(this, clipboard, application.getFileIconResolver());
clipboardFileAdapter.setFontApplicator(fontApplicator);
clipboardListView.setAdapter(clipboardFileAdapter);
}
}
}
#Override
public void onFavouritesChanged(FavouritesManager favouritesManager)
{
loadFavourites(favouritesManager);
}
#Override
public boolean onKeyLongPress(int keyCode, KeyEvent event)
{
Log.d("Key Long Press", event.toString());
if (keyCode == KeyEvent.KEYCODE_BACK)
{
finish();
return true;
}
else return super.onKeyLongPress(keyCode, event);
}
}
and the activity where I want to call
package edu.cmu.pocketsphinx.demo;
import static android.widget.Toast.makeText;
import static edu.cmu.pocketsphinx.SpeechRecognizerSetup.defaultSetup;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.AnimationDrawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.evolution.filemanager.about.AboutActivity;
import com.evolution.filemanager.folders.FolderActivity;
import com.evolution.utils.DataClearer;
import edu.cmu.pocketsphinx.Assets;
import edu.cmu.pocketsphinx.Hypothesis;
import edu.cmu.pocketsphinx.RecognitionListener;
import edu.cmu.pocketsphinx.SpeechRecognizer;
public class MainActivity extends Activity implements
RecognitionListener {
public AnimationDrawable rocketAnimation;
private static final String KWS_SEARCH = "wakeup";
private static final String FORECAST_SEARCH = "forecast";
private static final String DIGITS_SEARCH = "digits";
private static final String MENU_SEARCH = "menu";
private static final String KEYPHRASE = "frost";
private static final String GO_BACK = "back";
private static final String PREVIOUS = "previous";
private static final String OPEN_FILE_MANAGER = "open file manager";
private static final String OPEN_ABOUT = "open about";
private static final String OPEN_MUSIC = "open music";
private static final String OPEN_PICTURES = "open pictures";
private static final String OPEN_VIDEOS = "open videos";
private static final String SHOW_COMMANDS = "show commands";
private static final String CLOSE_FILE_MANAGER = "close file manager";
private static final String CLOSE_ABOUT = "close about";
private static final String CLOSE_MUSIC = "close music";
private static final String CLOSE_PICTURES = "close pictures";
private static final String CLOSE_VIDEOS = "close videos";
private static final String CLOSE_COMMANDS = "close commands";
private static final String SHOW_DRAWER = "show drawer";
private static final String HIDE_DRAWER = "hide drawer";
public static boolean isOPEN_FILE_MANAGER = false;
private static boolean isOPEN_ABOUT = false;
private static boolean isOPEN_MUSIC = false;
private static boolean isOPEN_PICTURES = false;
private static boolean isOPEN_VIDEOS = false;
private static boolean isSHOW_COMMANDS = false;
private static boolean isSHOW_DRAWER = false;
private static String MENU_CAPTION;
private SpeechRecognizer recognizer;
private HashMap<String, Integer> captions;
#Override
public void onCreate(Bundle state) {
super.onCreate(state);
// Prepare the data for UI
captions = new HashMap<String, Integer>();
captions.put(KWS_SEARCH, R.string.kws_caption);
captions.put(MENU_SEARCH, R.string.menu_caption);
captions.put(DIGITS_SEARCH, R.string.digits_caption);
captions.put(FORECAST_SEARCH, R.string.forecast_caption);
setContentView(R.layout.main);
((TextView) findViewById(R.id.caption_text))
.setText("Preparing the recognizer");
ImageView rocketImage = (ImageView) findViewById(R.id.imageViewAnim);
rocketImage.setBackgroundResource(R.drawable.heart_animation);
rocketAnimation = (AnimationDrawable) rocketImage.getBackground();
// Recognizer initialization is a time-consuming and it involves IO,
// so we execute it in async task
new AsyncTask<Void, Void, Exception>() {
#Override
protected Exception doInBackground(Void... params) {
try {
Assets assets = new Assets(PocketSphinxActivity.this);
File assetDir = assets.syncAssets();
setupRecognizer(assetDir);
} catch (IOException e) {
return e;
}
return null;
}
#Override
protected void onPostExecute(Exception result) {
if (result != null) {
((TextView) findViewById(R.id.caption_text))
.setText("Failed to init recognizer " + result);
} else {
switchSearch(KWS_SEARCH);
}
}
}.execute();
}
#Override
public void onPartialResult(Hypothesis hypothesis) {
String text = hypothesis.getHypstr();
TextView tv = ((TextView) findViewById(R.id.caption_text));
if (text.equals(KEYPHRASE))
{
switchSearch(MENU_SEARCH);
rocketAnimation.start();
}
else if (text.equals(OPEN_FILE_MANAGER))
{
switchSearch(KWS_SEARCH);
Intent intent = new Intent (PocketSphinxActivity.this , FolderActivity.class);
startActivity(intent);
isOPEN_FILE_MANAGER = true;
}
else if (text.equals(CLOSE_FILE_MANAGER))
{
if(isOPEN_FILE_MANAGER == true)
{
switchSearch(KWS_SEARCH);
FolderActivity.FOLDERACTIVITY.finish();
isOPEN_FILE_MANAGER = false;
}
}
else if (text.equals(SHOW_COMMANDS))
{
switchSearch(KWS_SEARCH);
Intent intent = new Intent (PocketSphinxActivity.this , Commands.class);
startActivity(intent);
isSHOW_COMMANDS = true;
}
else if (text.equals(CLOSE_COMMANDS))
{
if(isSHOW_COMMANDS == true)
{
switchSearch(KWS_SEARCH);
Commands.SHOWCOMMANDS.finish();
}
}
else if (text.equals(OPEN_PICTURES))
{
switchSearch(KWS_SEARCH);
Intent intent = new Intent (PocketSphinxActivity.this , AboutActivity.class);
startActivity(intent);
}
else if(text.equals(OPEN_ABOUT))
{
switchSearch(KWS_SEARCH);
Intent intent = new Intent(PocketSphinxActivity.this, AboutActivity.class);
startActivity(intent);
isOPEN_ABOUT = true;
}
else if(text.equals(CLOSE_ABOUT))
{
if (isOPEN_ABOUT == true)
{
switchSearch(KWS_SEARCH);
AboutActivity.ABOUTACTIVITY.finish();
}
}
else if(text.equals(GO_BACK) || text.equals(PREVIOUS))
{
if(isOPEN_FILE_MANAGER == true )
{
FolderActivity.FOLDERACTIVITY//where i want to call onOptionsItemSelected
switchSearch(KWS_SEARCH);
}
}
else
{
switchSearch(KWS_SEARCH);
((TextView) findViewById(R.id.result_text)).setText(text);
}
}
#Override
public void onResult(Hypothesis hypothesis) {
((TextView) findViewById(R.id.result_text)).setText("");
if (hypothesis != null) {
String text = hypothesis.getHypstr();
makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show();
}
}
#Override
public void onBeginningOfSpeech() {
}
#Override
public void onEndOfSpeech() {
if (DIGITS_SEARCH.equals(recognizer.getSearchName())
|| FORECAST_SEARCH.equals(recognizer.getSearchName())
|| OPEN_FILE_MANAGER.equals(recognizer.getSearchName()))
switchSearch(KWS_SEARCH);
}
private void switchSearch(String searchName) {
recognizer.stop();
recognizer.startListening(searchName);
String caption = getResources().getString(captions.get(searchName));
((TextView) findViewById(R.id.caption_text)).setText(caption);
}
private void setupRecognizer(File assetsDir) {
File modelsDir = new File(assetsDir, "models");
recognizer = defaultSetup()
.setAcousticModel(new File(modelsDir, "hmm/en-us-semi"))
.setDictionary(new File(modelsDir, "dict/cmu07a.dic"))
.setRawLogDir(assetsDir).setKeywordThreshold(1e-20f)
.getRecognizer();
recognizer.addListener(this);
// Create keyword-activation search.
recognizer.addKeyphraseSearch(KWS_SEARCH, KEYPHRASE);
// Create grammar-based searches.
File menuGrammar = new File(modelsDir, "grammar/menu.gram");
recognizer.addGrammarSearch(MENU_SEARCH, menuGrammar);
File digitsGrammar = new File(modelsDir, "grammar/digits.gram");
recognizer.addGrammarSearch(DIGITS_SEARCH, digitsGrammar);
// Create language model search.
File languageModel = new File(modelsDir, "lm/weather.dmp");
recognizer.addNgramSearch(FORECAST_SEARCH, languageModel);
}
#Override
protected void onStop(){
super.onStop();
}
//Fires after the OnStop() state
#Override
protected void onDestroy() {
super.onDestroy();
try {
trimCache(this); //clear cache to minimize the app size
DataClearer.getInstance().clearApplicationData();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void trimCache(Context context) {
try {
File dir = context.getCacheDir();
if (dir != null && dir.isDirectory()) {
deleteDir(dir);
}
} catch (Exception e) {
// TODO: handle exception
}
}
public static boolean deleteDir(File dir) {
if (dir != null && dir.isDirectory()) {
String[] children = dir.list();
for (int i = 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
// The directory is now empty so delete it
return dir.delete();
}
}
the FolderActivity runs on top of the MainActivty but the voice recognition in MainActivity is still active and I want the voice itself do some manipulation in the FolderActivity

Here's a few suggestions:
Have FolderActivity register a BroadcastReceiver as a listener for a certain Intent. When MainActivity wants to do something in FolderActivity, it can send a broadcast Intent which will be seen by the BroadcastReceiver in FolderActivity, which can then call the appropriate method in the `Activity.
When MainActivity wants to do something in FolderActivity, it can launch FolderActivity again using an Intent with flag Intent.FLAG_ACTIVITY_SINGLE_TOP and some "extra" that describes what FolderActivity should do. In FolderActivity override onNewIntent(), read the passed Intent parameter and use it to determine what method to call in FolderActivity. Because the Activity was launched withIntent.FLAG_ACTIVITY_SINGLE_TOP, Android won't create a new instance of the Activity, it will just callonNewIntent()` on the existing instance.
Have FolderActivity set a public static variable of type Activity to a reference to itself in onCreate(). MainActivity can then call a method on FolderActivity by doing something like FolderActivity.activityReference.doSomething()
Method 3 is not the preferred method, since you need to make sure that you set the public static variable to null in FolderActivity.onDestroy() and there are other concerns (timing issues, memory leaks, etc.) that need to be dealt with properly.
NOTE: You probably don't want to call onOptionsItemSelected() directly. This method is called by the Android framework when an options item is selected by the user. You should call directly the method that actually does something, not this framework callback method.

Switching to Tablet support and Fragment using template SettingsActivity from Eclipse ADT

I generated the below code from the default template SettingsActivity from Eclipse and ADT. I find it overly complicated. I also added some pieces myself. How can I improve the structure?
Currently Activity listener and a Fragment listener -> Better way?
Get rid of the static Preference proxyEmail = null; -> How? Is static OK?
How can I call/use findPreference(getText(R.string.key_proxy_email)) in onPreferenceChange() method (line 123)?
Refactor ideas?
package com.xyz.abc;
import java.util.List;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceCategory;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.widget.Toast;
public class SettingsActivity extends PreferenceActivity implements OnSharedPreferenceChangeListener {
private static final boolean ALWAYS_SIMPLE_PREFS = false;
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
setupSimplePreferencesScreen();
// TODO Not used at the moment
//final SharedPreferences sp = new SecureSharedPreferences(this, this.getSharedPreferences(MY_PREFS_FILE_NAME, Context.MODE_PRIVATE) );
SharedPreferences settings = getSharedPreferences(Global.PREFERENCES, 0);
boolean sent = settings.getBoolean(Global.PREF_SETTING_SENT, false);
if (sent) {
Toast.makeText(getApplicationContext(), Global.TOAST_MSG_SENT, Toast.LENGTH_LONG);
} else {
Toast.makeText(getApplicationContext(), Global.TOAST_MSG_ERROR, Toast.LENGTH_LONG);
}
}
private void setupSimplePreferencesScreen() {
if (!isSimplePreferences(this)) {
return;
}
addPreferencesFromResource(R.xml.pref_dummy); // Be able to display first title
PreferenceCategory fakeHeader = new PreferenceCategory(this);
fakeHeader.setTitle(R.string.pref_header_settings);
getPreferenceScreen().addPreference(fakeHeader);
addPreferencesFromResource(R.xml.pref_settings);
fakeHeader = new PreferenceCategory(this);
fakeHeader.setTitle(R.string.pref_header_advanced);
getPreferenceScreen().addPreference(fakeHeader);
addPreferencesFromResource(R.xml.pref_advanced);
fakeHeader = new PreferenceCategory(this);
fakeHeader.setTitle(R.string.pref_header_general);
getPreferenceScreen().addPreference(fakeHeader);
addPreferencesFromResource(R.xml.pref_general);
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
sp.registerOnSharedPreferenceChangeListener(this);
toggleProxyEmail(findPreference(getText(R.string.key_via)), findPreference(getText(R.string.key_proxy_email)));
}
/** {#inheritDoc} */
#Override
public boolean onIsMultiPane() {
return isXLargeTablet(this) && !isSimplePreferences(this);
}
/**
* Helper method to determine if the device has an extra-large screen. For example, 10" tablets are extra-large.
*/
private static boolean isXLargeTablet(Context context) {
return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
}
private static boolean isSimplePreferences(Context context) {
return ALWAYS_SIMPLE_PREFS || Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB || !isXLargeTablet(context);
}
/** {#inheritDoc} */
#Override
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void onBuildHeaders(List<Header> target) {
if (!isSimplePreferences(this)) {
loadHeadersFromResource(R.xml.pref_headers, target);
}
}
private static Preference.OnPreferenceChangeListener bindPrefSummaryToValueListener = new Preference.OnPreferenceChangeListener() {
#Override
public boolean onPreferenceChange(Preference preference, Object value) {
String stringValue = value.toString();
if (preference instanceof ListPreference) {
// For list preferences, look up the correct display value in the preference's 'entries' list.
ListPreference listPreference = (ListPreference) preference;
int index = listPreference.findIndexOfValue(stringValue);
// Set the summary to reflect the new value.
preference.setSummary(index >= 0 ? listPreference.getEntries()[index] : null);
} else {
// For all other preferences, set the summary to the value's simple string representation.
preference.setSummary(stringValue);
}
return true;
}
};
private static Preference.OnPreferenceChangeListener bindPrefKeyToEditTextListener = new Preference.OnPreferenceChangeListener() {
#Override
public boolean onPreferenceChange(Preference preference, Object value) {
((CheckBoxPreference) preference).setChecked((Boolean) value);
toggleProxyEmail(preference, SettingsPreferenceFragment.proxyEmail);
return true;
}
};
private static void bindPreferenceSummaryToValue(Preference preference) {
preference.setOnPreferenceChangeListener(bindPrefSummaryToValueListener);
// Trigger the listener immediately with the preference's current value.
bindPrefSummaryToValueListener.onPreferenceChange(preference, PreferenceManager.getDefaultSharedPreferences(preference.getContext()).getString(preference.getKey(), ""));
}
private static void bindPreferenceKeyToEditText(Preference preference) {
preference.setOnPreferenceChangeListener(bindPrefKeyToEditTextListener);
// Trigger the listener immediately with the preference's current value.
bindPrefKeyToEditTextListener.onPreferenceChange(preference, PreferenceManager.getDefaultSharedPreferences(preference.getContext()).getBoolean(preference.getKey(), false));
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class SettingsPreferenceFragment extends PreferenceFragment {
static Preference proxyEmail = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_settings);
proxyEmail = findPreference(getText(R.string.key_proxy_email));
toggleProxyEmail(findPreference(getText(R.string.key_via)), proxyEmail);
bindPreferenceSummaryToValue(findPreference(getText(R.string.key_dest_email)));
bindPreferenceKeyToEditText(findPreference(getText(R.string.key_via)));
bindPreferenceSummaryToValue(findPreference(getText(R.string.key_proxy_email)));
bindPreferenceSummaryToValue(findPreference(getText(R.string.key_pwd)));
bindPreferenceSummaryToValue(findPreference(getText(R.string.key_provider)));
}
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class AdvancedPreferenceFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_advanced);
}
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class GeneralPreferenceFragment extends PreferenceFragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.pref_general);
bindPreferenceSummaryToValue(findPreference(getText(R.string.key_help)));
}
}
private static void toggleProxyEmail(Preference prefKey, Preference prefValue) {
if (prefKey instanceof CheckBoxPreference) {
if(((CheckBoxPreference) prefKey).isChecked()) {
prefValue.setEnabled(true);
} else {
prefValue.setEnabled(false);
}
}
}
#Override
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { // Only called in a normal Activity
if(key.equals(findPreference(getString(R.string.key_via)).getKey())) {
toggleProxyEmail(findPreference(getText(R.string.key_via)), findPreference(getText(R.string.key_proxy_email)));
}
}
}