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App not responding after launching a new activity in android studio

The game starts from MainActivity class (that extends Activity) and then calls new GamePanel that extends SurfaceView, and there are many classes that update the game, so there is a class (GameplayScene) that checks the touch and check what happened to the game (if the user win or lose), so there is an update method that check if the player wins or lose and if the player win or lose then I want to start a new activity that have a button to restart the game,
The issue is: After starting the new activity (by using Intent from a class that does not extends anything) the app does not respond (but it displays the new activity correctly)
the class that starts the new activity from () :
public class GameplayScene implements Scene {
public GameplayScene() {
....
#Override
public void recieveTouch(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
if (!youWin && !gameOver && player.getRectangle().contains((int) event.getX(), (int) event.getY()))
movingPlayer = true;
forBegin = false;
if (gameOver && System.currentTimeMillis() - gameOverTime >= 2000) {
reset();
gameOver = false;
}
if (youWin && System.currentTimeMillis() - winTime >= 2000) {
reset();
youWin = false;
}
if(!youWin && !gameOver && !movingPlayer) {
if(!forBegin && System.currentTimeMillis() - fireTime >= 200) {
touchFire = true;
count = 1;
fireTime = System.currentTimeMillis();
}
}
break;
case MotionEvent.ACTION_MOVE:
if (!youWin && !gameOver && movingPlayer)
playerPoint.set((int) event.getX(), (int) event.getY());
break;
case MotionEvent.ACTION_UP:
movingPlayer = false;
touchFire = false;
break;
}
}
//#Override
public void draw(Canvas canvas) {
canvas.drawColor(Color.BLACK);
//Drawable d = getDrawable(getResources(), R.drawable.bgi);
//d.setBounds(0, 0,canvas.getWidth(), canvas.getHeight());
//d.draw(canvas);
//canvas.drawBitmap(bgi, null, new Rect(0, 0, canvas.getWidth(), canvas.getHeight()),new Paint());
player.draw(canvas);
obstacleManager.draw(canvas);
if(gameOver) {
Context contX = Constants.CONTEXT;
Intent intent = new Intent(contX , result.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("toWR",0);
contX.startActivity(intent);
}
if(youWin) {
Context contX = Constants.CONTEXT;
Intent intent = new Intent(contX , result.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("toWR",1);
contX.startActivity(intent);
}
}
}
Android manifest :
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme" >
<activity android:name=".main_menu"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity"
android:screenOrientation="portrait" />
<SurfaceView android:name=".GamePanel"
android:screenOrientation="portrait" />
<activity android:name=".result"
android:screenOrientation="portrait" />
</application>

I'm assuming you have some kind of DrawingThread(...) that is delegating the draw(...) to this Scene. If that is the case, then you're probably aiming for 60 updates per second... which means this intent will try to launch 60 times per second. That's probably what is causing your app to seem like it isn't responding.
Instead of launching an intent from in here, change the state of your game (or reuse the gameOver state) and interrupt your game loop (drawing thread). Then, start your activity once outside of the game loop, but before your thread finishes.

Android MediaPlayer playback stutters over wired headphones, not over Bluetooth

I have a simple music player app (source) which has had playback issues in Lollipop when using headphones. Music will play normally for anywhere from 30 seconds to 5 minutes, then will pause for ~2-4 seconds, then resume.
The behavior seems to generally occur while the screen is off, but acquiring a CPU wakelock didn't help.
The frequency of the pauses seems to accelerate over time. At first it's once per hour, but then the time between pauses decreases by about half each time, until it's pausing almost every minute.
I've observed this behavior with iTunes encoded aac files, others have observed it with mp3s.
This has only been observed while playing over wired headphones. I have never experienced this behavior on a Bluetooth headset.
What could be causing this? It seems like a process priority issue, but I don't know how to address that kind of problem.
I haven't experienced this on Android 4.x.
Here's the Github ticket for this issue.
Here are some relevant bits of source code:
Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.smithdtyler.prettygoodmusicplayer"
android:versionCode="65"
android:versionName="3.2.14" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_pgmp_launcher"
android:label="#string/app_name"
android:theme="#style/AppBaseTheme" >
<!-- Set the artist list to launch mode single task to prevent multiple instances -->
<!-- This fixes an error where exiting the application just brings up another instance -->
<!-- See https://developer.android.com/guide/topics/manifest/activity-element.html#lmode -->
<activity
android:name="com.smithdtyler.prettygoodmusicplayer.ArtistList"
android:label="#string/app_name"
android:launchMode="singleTask" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.CATEGORY_APP_MUSIC " />
</intent-filter>
</activity>
<activity
android:name="com.smithdtyler.prettygoodmusicplayer.SettingsActivity"
android:label="#string/title_activity_settings" >
</activity>
<activity
android:name="com.smithdtyler.prettygoodmusicplayer.AlbumList"
android:label="#string/title_activity_album_list" >
</activity>
<activity
android:name="com.smithdtyler.prettygoodmusicplayer.SongList"
android:label="#string/title_activity_song_list" >
</activity>
<activity
android:name="com.smithdtyler.prettygoodmusicplayer.NowPlaying"
android:exported="true"
android:label="#string/title_activity_now_playing" >
</activity>
<!--
The service has android:exported="true" because that's needed for
control from the notification. Not sure why it causes a warning...
-->
<service
android:name="com.smithdtyler.prettygoodmusicplayer.MusicPlaybackService"
android:exported="true"
android:icon="#drawable/ic_pgmp_launcher" >
</service>
<receiver
android:name="com.smithdtyler.prettygoodmusicplayer.MusicBroadcastReceiver"
android:enabled="true" >
<intent-filter android:priority="2147483647" >
<action android:name="android.intent.action.MEDIA_BUTTON" />
</intent-filter>
</receiver>
</application>
</manifest>
MusicPlaybackService.onCreate()
#Override
public synchronized void onCreate() {
Log.i(TAG, "Music Playback Service Created!");
isRunning = true;
sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
powerManager =(PowerManager) getSystemService(POWER_SERVICE);
wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
"PGMPWakeLock");
random = new Random();
mp = new MediaPlayer();
mp.setOnCompletionListener(new OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
Log.i(TAG, "Song complete");
next();
}
});
// https://developer.android.com/training/managing-audio/audio-focus.html
audioFocusListener = new PrettyGoodAudioFocusChangeListener();
// Get permission to play audio
am = (AudioManager) getBaseContext().getSystemService(
Context.AUDIO_SERVICE);
HandlerThread thread = new HandlerThread("ServiceStartArguments");
thread.start();
// Get the HandlerThread's Looper and use it for our Handler
mServiceLooper = thread.getLooper();
mServiceHandler = new ServiceHandler(mServiceLooper);
// https://stackoverflow.com/questions/19474116/the-constructor-notification-is-deprecated
// https://stackoverflow.com/questions/6406730/updating-an-ongoing-notification-quietly/15538209#15538209
Intent resultIntent = new Intent(this, NowPlaying.class);
resultIntent.putExtra("From_Notification", true);
resultIntent.putExtra(AlbumList.ALBUM_NAME, album);
resultIntent.putExtra(ArtistList.ARTIST_NAME, artist);
resultIntent.putExtra(ArtistList.ARTIST_ABS_PATH_NAME, artistAbsPath);
// Use the FLAG_ACTIVITY_CLEAR_TOP to prevent launching a second
// NowPlaying if one already exists.
resultIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
resultIntent, 0);
Builder builder = new NotificationCompat.Builder(
this.getApplicationContext());
String contentText = getResources().getString(R.string.ticker_text);
if (songFile != null) {
contentText = Utils.getPrettySongName(songFile);
}
Notification notification = builder
.setContentText(contentText)
.setSmallIcon(R.drawable.ic_pgmp_launcher)
.setWhen(System.currentTimeMillis())
.setContentIntent(pendingIntent)
.setContentTitle(
getResources().getString(R.string.notification_title))
.build();
startForeground(uniqueid, notification);
timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
public void run() {
onTimerTick();
}
}, 0, 500L);
Log.i(TAG, "Registering event receiver");
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
// Apparently audio registration is persistent across lots of things...
// restarts, installs, etc.
mAudioManager.registerMediaButtonEventReceiver(cn);
// I tried to register this in the manifest, but it doesn't seen to
// accept it, so I'll do it this way.
getApplicationContext().registerReceiver(receiver, filter);
headphoneReceiver = new HeadphoneBroadcastReceiver();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction("android.intent.action.HEADSET_PLUG");
registerReceiver(headphoneReceiver, filter);
}
MusicPlaybackService.startPlayingFile()
private synchronized void startPlayingFile(int songProgress) {
// Have we loaded a file yet?
if (mp.getDuration() > 0) {
pause();
mp.stop();
mp.reset();
}
// open the file, pass it into the mp
try {
fis = new FileInputStream(songFile);
mp.setDataSource(fis.getFD());
mp.prepare();
if(songProgress > 0){
mp.seekTo(songProgress);
}
wakeLock.acquire();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
MusicPlaybackService Timer Task
private void onTimerTick() {
long currentTime = System.currentTimeMillis();
if (pauseTime < currentTime) {
pause();
}
updateResumePosition();
sendUpdateToClients();
}
private void updateResumePosition(){
long currentTime = System.currentTimeMillis();
if(currentTime - 10000 > lastResumeUpdateTime){
if(mp != null && songFile != null && mp.isPlaying()){
int pos = mp.getCurrentPosition();
SharedPreferences prefs = getSharedPreferences("PrettyGoodMusicPlayer", MODE_PRIVATE);
Log.i(TAG,
"Preferences update success: "
+ prefs.edit()
.putString(songFile.getParentFile().getAbsolutePath(),songFile.getName() + "~" + pos)
.commit());
}
lastResumeUpdateTime = currentTime;
}
}
private void sendUpdateToClients() {
List<Messenger> toRemove = new ArrayList<Messenger>();
synchronized (mClients) {
for (Messenger client : mClients) {
Message msg = Message.obtain(null, MSG_SERVICE_STATUS);
Bundle b = new Bundle();
if (songFile != null) {
b.putString(PRETTY_SONG_NAME,
Utils.getPrettySongName(songFile));
b.putString(PRETTY_ALBUM_NAME, songFile.getParentFile()
.getName());
b.putString(PRETTY_ARTIST_NAME, songFile.getParentFile()
.getParentFile().getName());
} else {
// songFile can be null while we're shutting down.
b.putString(PRETTY_SONG_NAME, " ");
b.putString(PRETTY_ALBUM_NAME, " ");
b.putString(PRETTY_ARTIST_NAME, " ");
}
b.putBoolean(IS_SHUFFLING, this._shuffle);
if (mp.isPlaying()) {
b.putInt(PLAYBACK_STATE, PlaybackState.PLAYING.ordinal());
} else {
b.putInt(PLAYBACK_STATE, PlaybackState.PAUSED.ordinal());
}
// We might not be able to send the position right away if mp is
// still being created
// so instead let's send the last position we knew about.
if (mp.isPlaying()) {
lastDuration = mp.getDuration();
lastPosition = mp.getCurrentPosition();
}
b.putInt(TRACK_DURATION, lastDuration);
b.putInt(TRACK_POSITION, lastPosition);
msg.setData(b);
try {
client.send(msg);
} catch (RemoteException e) {
e.printStackTrace();
toRemove.add(client);
}
}
for (Messenger remove : toRemove) {
mClients.remove(remove);
}
}
}

I got a really helpful response from the developer of the Vanilla Music Player:
We use a separated thread to read-ahead the currently playing file:
-> The thread reads the file with about 256kb/s, so it will read the file faster than mediaserver does
-> This gives the file a very good chance to stay in the page/disk cache
-> ..and this minimizes the chance for 'drop outs' due to funky sd-cards or other IO-pauses.
The code is located here: https://github.com/vanilla-music/vanilla/blob/master/src/ch/blinkenlights/android/vanilla/ReadaheadThread.java
The code does not depend on any parts of vanilla music: if you would like to give it a try, just drop it into your project and do something like:
onCreate {
...
mReadaheadThread = new ReadaheadThread()
...
}
...
mMediaPlayer.setDataSource(path);
mReadaheadThread.setDataSource(path);
...
Since implementing this change I haven't encountered the problem.

How to display parsed html in a ListView in Android

I'm trying to parse news titles from a website using jsoup and display them in a ListView. I have been trying to solve this problem for a long time and have googled like crazy but i am unable to solve my problem or find a working solution. I have a custom class that holds two variables the news title and the link to the article. It seems as if everything parses fine but I just can't get my ListView to display correctly or at all... it continually crashes and it seams that every time I get a different error. Maybe I am making it too hard on myself. I am frustrated and can't think logically anymore... I would really appreciate any and all tips or helpful answers.
Feeds class:
public class Feeds {
private String mNewsTitle;
private String mNewsLink;
public Feeds(String newsTitle, String newsLink){
mNewsTitle = newsTitle;
mNewsLink = newsLink;
}
public String getNewsTitle(){
return mNewsTitle;
}
public void setNewsTitle(String newsTitle){
mNewsTitle = newsTitle;
}
public String getNewsLink(){
return mNewsLink;
}
public void setNewsLink(String newsLink){
mNewsTitle = newsLink;
}
}
NewsFeeds class:
public class NewsFeeds extends ListActivity {
private ArrayList<Feeds> mFeedDB = new ArrayList<Feeds>();
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_news_feeds);
HtmlParser htmlThread = new HtmlParser();
htmlThread.execute();
} // end on create
public class HtmlParser extends AsyncTask<Void, Integer, ArrayList<Feeds>> {
private static final int NETWORK_NO_ERROR = -1;
private static final int NETWORK_HOST_UNREACHABLE = 1;
private static final int NETWORK_NO_ACCESS_TO_INTERNET = 2;
private static final int NETWORK_TIME_OUT = 3;
Integer serverError = NETWORK_NO_ERROR;
ProgressDialog dialog;
protected void onPreExecute() {
// example of setting up something
dialog = new ProgressDialog(NewsFeeds.this);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
dialog.setMessage("Retrieving News Feeds");
dialog.show();
} // end onPreExecute
#Override
protected ArrayList<Feeds> doInBackground(Void... params) {
try {
// need http protocol
Document doc = Jsoup.connect("http://baseball-potsdam.de/news")
.get();
// get news feed titles
Elements newsFeed = doc.getElementsByClass("gdlr-blog-title");
// get all links
Elements links = newsFeed.select("a[href]");
for (Element link : links) {
// populate ArrayList with news titles and links
mFeedDB.add(new Feeds(link.text(), link.attr("href")));
}
return mFeedDB;
// } catch (IOException e) {
// e.printStackTrace();
} catch (ConnectException e) {
serverError = NETWORK_NO_ACCESS_TO_INTERNET;
return null;
} catch (UnknownHostException e) {
serverError = NETWORK_HOST_UNREACHABLE;
return null;
} catch (SocketTimeoutException e) {
serverError = NETWORK_TIME_OUT;
return null;
} catch (IOException e) {
e.printStackTrace();
} // end try catch
return null;
} // end doInBackground
protected void onProgressUpdate(Integer... progress) {
} // end onProgressUpdate
protected void onPostExecute(ArrayList<Feeds> result) {
if (result != null) {
ListView listview = (ListView) findViewById(R.id.list_view_news_feeds);
listview.setAdapter(new ArrayAdapter<Feeds>(NewsFeeds.this, android.R.layout.simple_list_item_1 , mFeedDB));
if (dialog.isShowing()) {
dialog.dismiss();
} // end if
} else {
switch (serverError) {
case NETWORK_NO_ERROR:
Toast.makeText(NewsFeeds.this,
"Probably, invalid response from server",
Toast.LENGTH_LONG).show();
break;
case NETWORK_NO_ACCESS_TO_INTERNET:
// You can customize error message (or behavior) for
// different type of error
case NETWORK_TIME_OUT:
case NETWORK_HOST_UNREACHABLE:
Toast.makeText(NewsFeeds.this, "Error in Connection",
Toast.LENGTH_LONG).show();
break;
}
} // end if else
} // end onPostExecute
} // end HtmlParser class
} // end NewsFeeds
activity_news_feeds.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/list_view_news_feeds"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:dividerHeight="0.1dp"
android:divider="#0000CC"
/>
</LinearLayout>
NewsManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.kylehopeman.android.porcupinesnews"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<uses-permission android:name="android.permission.INTERNET" />"
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.kylehopeman.android.porcupinesnews.MainMenu"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.kylehopeman.android.porcupinesnews.NewsFeeds"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.kylehopeman.android.porcupinesnews.NewsFeeds" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>

If you are getting an error with the ListView it looks like it only gets instantiated in the postExecute block. Is it possible to instantiate it in the onCreate() and have it declared where you declare mFeedDB?

After changing the first line in my NewsFeeds.java file from:
public class NewsFeeds extends ListActivity
to:
public class NewsFeeds extends Activity
the errors went away, the app compiled and worked just like I wanted it to.

Can someone help me with Android RemoteControlClient?

I'm trying to get the RemoteControlClient set up so my app's music can be controlled by the widget that pops up on the lock screen (like SoundCloud, Google Play Music, and other music/video apps work). I'm not sure what's wrong with my code and why it isn't correctly hooking, but here's what I have so far...
A class called MusicService that tries to handle the updates to the RemoteControlClient
public class MusicService extends Service
{
public static final String ACTION_PLAY = "com.stfi.music.action.PLAY";
private RemoteController controller = null;
#Override
public void onCreate()
{
super.onCreate();
System.out.println("Creating the service.");
if(controller == null)
{
controller = new RemoteController();
}
}
#Override
public int onStartCommand(Intent intent, int flags, int startId)
{
String action = intent.getAction();
System.out.println("Got an action of " + action);
/* Logic to get my Song cur */
controller.register(this);
controller.updateMetaData(cur);
return START_STICKY;
}
#Override
public void onDestroy()
{
super.onDestroy();
System.out.println("Destorying MusicService");
}
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
}
This uses a class I have called RemoteController which houses my RemoteControlClient.
public class RemoteController {
private RemoteControlClient remoteControlClient;
private Bitmap dummyAlbumArt;
public void register(Context context)
{
if (remoteControlClient == null)
{
System.out.println("Trying to register it.");
dummyAlbumArt = BitmapFactory.decodeResource(context.getResources(), R.drawable.dummy_album_art);
AudioManager audioManager = (AudioManager) context.getSystemService(context.AUDIO_SERVICE);
ComponentName myEventReceiver = new ComponentName(context.getPackageName(), MediaButtonReceiver.class.getName());
audioManager.registerMediaButtonEventReceiver(myEventReceiver);
// build the PendingIntent for the remote control client
Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
mediaButtonIntent.setComponent(myEventReceiver);
// create and register the remote control client
PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(context, 0, mediaButtonIntent, 0);
remoteControlClient = new RemoteControlClient(mediaPendingIntent);
remoteControlClient.setTransportControlFlags(RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE
| RemoteControlClient.FLAG_KEY_MEDIA_NEXT
| RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS
| RemoteControlClient.FLAG_KEY_MEDIA_PLAY
| RemoteControlClient.FLAG_KEY_MEDIA_PAUSE
);
audioManager.registerRemoteControlClient(remoteControlClient);
}
}
/**
* Update the state of the remote control.
*/
public void updateState(boolean isPlaying)
{
if(remoteControlClient != null)
{
if (isPlaying)
{
remoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_PLAYING);
}
else
{
remoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_PAUSED);
}
}
}
/**
* Updates the state of the remote control to "stopped".
*/
public void stop()
{
if (remoteControlClient != null)
{
remoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_STOPPED);
}
}
public void updateMetaData(Song song)
{
if (remoteControlClient != null && song != null)
{
System.out.println("Updating metadata");
MetadataEditor editor = remoteControlClient.editMetadata(true);
editor.putBitmap(MetadataEditor.BITMAP_KEY_ARTWORK, dummyAlbumArt);
editor.putLong(MediaMetadataRetriever.METADATA_KEY_DURATION, (long)1000);
editor.putString(MediaMetadataRetriever.METADATA_KEY_ARTIST, "Artist");
editor.putString(MediaMetadataRetriever.METADATA_KEY_TITLE, "Title");
editor.apply();
updateState(true);
}
}
/**
* Release the remote control.
*/
public void release() {
remoteControlClient = null;
}
}
Every time I want to update the widget, I call startService(new Intent(MusicService.ACTION_PLAY));. It looks like it correctly creates the service, and it always gets to the point where it says "Updating metadata", but for some reason when I lock my screen and unlock it, I don't see any widget on my lock screen.
Below is the important parts of my manifest as well, seeing as that could somehow cause the issue...
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.stfi"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="17" />
<application
android:hardwareAccelerated="true"
android:allowBackup="true"
android:icon="#drawable/stfi"
android:label="#string/app_name"
android:largeHeap="true"
android:theme="#style/MyActionBarTheme" >
<meta-data
android:name="android.app.default_searchable"
android:value=".activities.SearchActivity" />
<activity
android:name=".StartingToFeelIt"
android:configChanges="orientation|keyboardHidden"
android:label="#string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="#xml/searchable" />
</activity>
...other activities listed
<service
android:name=".helpers.MyNotificationService"
android:enabled="true"
android:label="MyNotificationServiceLabel" >
</service>
<service
android:name=".music.MusicService"
android:exported="false" >
<intent-filter>
<action android:name="com.stfi.music.action.PLAY" />
</intent-filter>
<intent-filter>
<action android:name="com.example.android.musicplayer.action.URL" />
<data android:scheme="http" />
</intent-filter>
</service>
<receiver
android:name=".music.MediaButtonReceiver"
android:exported="false" >
</receiver>
</application>
Right now my MediaButtonReceiver doesn't really do much of anything. I'm just trying to get the hooks set up. If you want, this is my MediaButtonReceiver class...
public class MediaButtonReceiver extends BroadcastReceiver
{
#Override
public void onReceive(Context context, Intent intent)
{
System.out.println("Receiving something.");
if (intent.getAction().equals(Intent.ACTION_MEDIA_BUTTON))
{
final KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event != null && event.getAction() == KeyEvent.ACTION_UP)
{
if (event.getKeyCode() == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE)
{
System.out.println("You clicked pause.");
}
else if(event.getKeyCode() == KeyEvent.KEYCODE_MEDIA_PLAY)
{
System.out.println("You clicked play.");
}
else if (event.getKeyCode() == KeyEvent.KEYCODE_MEDIA_NEXT)
{
System.out.println("You clicked next.");
}
else if (event.getKeyCode() == KeyEvent.KEYCODE_MEDIA_PREVIOUS)
{
System.out.println("You clicked previous.");
}
}
}
}
}

if you can't see remoteControlClient on lock screen you must implement audio focus. You can look here

getMap() method possibly returning null?

I used a handler to get a GoogleMap from a support map fragment. I am literally lost and have been trying to fix it for days. The map loads fine but I am suspecting it is returning a null value. I know there may be some bad practices but that's not my problem. I tried it with an AsyncTask and Handler. I tested it on various mobile devices and did not use emulator. Here is my code where I removes some other imports, but they are there (It's obviously not the whole program):
import com.codexmalta.mytravelbuddy.R;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
public class Itinerary extends FragmentActivity implements View.OnClickListener {
//Google Map
GoogleMap map;
byte choice;
protected ProgressDialog dialog;
CameraPosition cameraPosition;
Timer timer = new Timer();
LinearLayout[] l = new LinearLayout[10];
TextView[] time = new TextView[10];
TextView[] desc = new TextView[10];
TextView[] loc = new TextView[10];
double[] lat = new double[10];
double[] lng = new double[10];
MarkerOptions[] marker = new MarkerOptions[10];
//Get Itinerary
GetItinerary gi = new GetItinerary();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_starting_point);
choice = getIntent().getByteExtra("choice", choice);
//Methods
getMapFragment();
getLayouts();
getFields();
gi.main(choice);
fillFields();
removeExtraLayouts(gi.giveNumDay1(),gi.giveNumDay2());
getMap();
displayMarkers();
animateCamera();
}
SupportMapFragment fm = new SupportMapFragment();
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.starting_point, menu);
return true;
}
private void removeExtraMarkers(){
for(int i = 0; i < 10; i++){
if(lat[i] == 0 && lng[i] == 0){
marker[i].alpha(0);
}
}
}
private void displayMarkers(){
String[] s = new String[10];
for(int i = 0; i < 10; i++){
s[i] = (String) loc[i].getText();
map.addMarker(marker[i].position(new LatLng(lat[i], lng[1])).title(s[i])).setVisible(true);
}
}
public void getMapFragment(){
fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
}
Handler mHandler = new Handler();
public void getMap(){
mHandler.post(new Runnable() {
#Override
public void run() {
GoogleMap map = fm.getMap();
if (map != null) {
map.setMyLocationEnabled(true);
// INIT HERE
map.getUiSettings().setMyLocationButtonEnabled(false);
// ...
} else mHandler.post(this);
}
});
while(map == null){
map = fm.getMap();
if(map!= null)break;
}
}
private void removeExtraLayouts(int a, int b){
//Day One
switch(a){
case 5:
l[0].removeAllViews();
l[1].removeAllViews();
l[2].removeAllViews();
l[3].removeAllViews();
l[4].removeAllViews();
break;
case 4:
l[1].removeAllViews();
l[2].removeAllViews();
l[3].removeAllViews();
l[4].removeAllViews();
break;
case 3:
l[2].removeAllViews();
l[3].removeAllViews();
l[4].removeAllViews();
break;
case 2:
l[3].removeAllViews();
l[4].removeAllViews();
break;
case 1:
l[4].removeAllViews();
break;
}
//Day Two
switch(b){
case 5:
l[5].removeAllViews();
l[6].removeAllViews();
l[7].removeAllViews();
l[8].removeAllViews();
l[9].removeAllViews();
break;
case 4:
l[6].removeAllViews();
l[7].removeAllViews();
l[8].removeAllViews();
l[9].removeAllViews();
break;
case 3:
l[7].removeAllViews();
l[8].removeAllViews();
l[9].removeAllViews();
break;
case 2:
l[8].removeAllViews();
l[9].removeAllViews();
break;
case 1:
l[9].removeAllViews();
break;
}
}
private void getLayouts(){
l[0] = (LinearLayout)findViewById(R.id.a1);
l[0].setOnClickListener(this);
l[1] = (LinearLayout)findViewById(R.id.a2);
l[1].setOnClickListener(this);
l[2] = (LinearLayout)findViewById(R.id.a3);
l[2].setOnClickListener(this);
l[3] = (LinearLayout)findViewById(R.id.a4);
l[3].setOnClickListener(this);
l[4] = (LinearLayout)findViewById(R.id.a5);
l[4].setOnClickListener(this);
l[5] = (LinearLayout)findViewById(R.id.a6);
l[5].setOnClickListener(this);
l[6] = (LinearLayout)findViewById(R.id.a7);
l[6].setOnClickListener(this);
l[7] = (LinearLayout)findViewById(R.id.a8);
l[7].setOnClickListener(this);
l[8] = (LinearLayout)findViewById(R.id.a9);
l[8].setOnClickListener(this);
l[9] = (LinearLayout)findViewById(R.id.a10);
l[9].setOnClickListener(this);
}
private void getFields(){
time[0] = (TextView)findViewById(R.id.time1);
desc[0] = (TextView)findViewById(R.id.desc1);
loc[0] = (TextView)findViewById(R.id.loc1);
time[1] = (TextView)findViewById(R.id.time2);
desc[1] = (TextView)findViewById(R.id.desc2);
loc[1] = (TextView)findViewById(R.id.loc2);
time[2] = (TextView)findViewById(R.id.time3);
desc[2] = (TextView)findViewById(R.id.desc3);
loc[2] = (TextView)findViewById(R.id.loc3);
time[3] = (TextView)findViewById(R.id.time4);
desc[3] = (TextView)findViewById(R.id.desc4);
loc[3] = (TextView)findViewById(R.id.loc4);
time[4] = (TextView)findViewById(R.id.time5);
desc[4] = (TextView)findViewById(R.id.desc5);
loc[4] = (TextView)findViewById(R.id.loc5);
time[5] = (TextView)findViewById(R.id.time6);
desc[5] = (TextView)findViewById(R.id.desc6);
loc[5] = (TextView)findViewById(R.id.loc6);
time[6] = (TextView)findViewById(R.id.time7);
desc[6] = (TextView)findViewById(R.id.desc7);
loc[6] = (TextView)findViewById(R.id.loc7);
time[7] = (TextView)findViewById(R.id.time8);
desc[7] = (TextView)findViewById(R.id.desc8);
loc[7] = (TextView)findViewById(R.id.loc8);
time[8] = (TextView)findViewById(R.id.time9);
desc[8] = (TextView)findViewById(R.id.desc9);
loc[8] = (TextView)findViewById(R.id.loc9);
time[9] = (TextView)findViewById(R.id.time10);
desc[9] = (TextView)findViewById(R.id.desc10);
loc[9] = (TextView)findViewById(R.id.loc10);
}
private void fillFields(){
for(int i = 0; i < 10; i++){
time[i].setText(gi.giveTimeArray(i));
desc[i].setText(gi.giveDescriptionArray(i));
loc[i].setText(gi.giveLocationArray(i));
lat[i] = gi.giveLatitudeArray(i);
lng[i] = gi.giveLongitudeArray(i);
}
}
private void animateCamera(){
CameraPosition.builder().target(new LatLng(20, 20)).zoom(12).build();
map.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
}
#Override
public void onClick(View v) {
switch(v.getId()){
case R.id.a1:
//animateCamera(lat[0],lng[0]);
break;
case R.id.a2:
//animateCamera(lat[1],lng[1]);
break;
case R.id.a3:
//animateCamera(lat[2],lng[2]);
break;
case R.id.a4:
//animateCamera(lat[3],lng[3]);
break;
case R.id.a5:
//animateCamera(lat[4],lng[4]);
break;
case R.id.a6:
//animateCamera(lat[5],lng[5]);
break;
case R.id.a7:
//animateCamera(lat[6],lng[6]);
break;
case R.id.a8:
//animateCamera(lat[7],lng[7]);
break;
case R.id.a9:
//animateCamera(lat[8],lng[8]);
break;
case R.id.a10:
//animateCamera(lat[9],lng[9]);
break;
}
}
}
Here is my manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.codexmalta.mytravelbuddy"
android:versionCode="1"
android:versionName="0.5" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="#drawable/tb02"
android:label="Travel Buddy"
android:configChanges = "keyboardHidden|orientation"
>
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
<activity
android:name="com.codexmalta.mytravelbuddy.MainActivity"
android:label="Travel Buddy"
android:theme="#android:style/Theme.NoTitleBar"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.codexmalta.mytravelbuddy.Itinerary"
android:label="Itinerary"
android:theme="#android:style/Theme.NoTitleBar"
android:screenOrientation="portrait">
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="key"/>
</application>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- The following two permissions are not required to use
Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
</manifest>
And here is my fragment that holds the map in the layout xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:id="#+id/RelativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="0dp"
android:layout_marginEnd="0dp"
android:layout_marginTop="-20dp"
android:background="#drawable/background"
android:measureAllChildren="false"
android:minHeight="75dp"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".Itinerary" >
<fragment
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent" />
Any help would be greatly appreciated as I just hit a wall. I searched other questions but none of them worked/ or i did not understand how they work.

I do not understand at all why you are trying to do this in a handler.
This:
GoogleMap gmap = ((SupportMapFragment).getSupportFragmentManager()
.findFragmentById(R.id.map)).getMap();
put in the onCreate() method will return the GoogleMap object.