Getting skipped frames with RxAndroid on a simple call - rx-java2

I'm implementing in a LauncherActivity (with just a loading indicator) an Observable (Single) from RxJava library to login with the previously recorded users credentials.
The activity is very very simple, and yet I get a skipped frames warning (40ish), both on my phone and on emulator, and I can't figure out why (though sometimes it doesn't show up).
Here is the code :
public class LauncherActivity extends AppCompatActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_launcher);
mProgressBar = findViewById(R.id.progress_bar);
mProgressBar.setVisibility(View.VISIBLE);
if (UsersUtils.hasCredentialsRecorded(this)) {
getAccessToken();
} else {
login();
}
}
public void getAccessToken() {
Callable<Token> callable = new Callable<Token>() {
#Override
public Token call() throws Exception {
final Map<String, byte[]> credentials = UsersUtils.getCredentials(getApplicationContext());
Token token = OauthCalls.getToken(new String(credentials.get(UsersUtils.PREFERENCES_USER_KEY)),
new String(credentials.get(UsersUtils.PREFERENCES_PASS_KEY)));
return token;
}
};
Single.fromCallable(callable)
.subscribeOn(Schedulers.io())
.subscribe(new DisposableSingleObserver<Token>() {
#Override
public void onSuccess(Token token) {
if (token == null) {
login();
} else {
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);
}
}
#Override
public void onError(Throwable e) {
login();
}
});
}
public void login() {
Intent intent = new Intent(this, LoginActivity.class);
startActivity(intent);
}
}
Thanks a lot for your help !

Related

Flutter Plugin - cannot resolve method 'startActivityForResult'

Recently I am working on a Flutter plugin for my project. My plugin requires startActivityForResult but can't figure out how to use it according to Flutter plugin development. I have given my code below.
public class MyPlugin implements FlutterPlugin, MethodCallHandler {
private static final int REQUEST_CODE = 1;
Result result;
#Override
public void onAttachedToEngine(#NonNull FlutterPluginBinding flutterPluginBinding) {
channel = new MethodChannel(flutterPluginBinding.getBinaryMessenger(), "my_plugin");
channel.setMethodCallHandler(this);
}
#Override
public void onDetachedFromEngine(#NonNull FlutterPluginBinding binding) {
channel.setMethodCallHandler(null);
}
#Override
public void onMethodCall(#NonNull MethodCall call, #NonNull Result result) {
this.result = result;
if (call.method.equals("myMethod")) {
myMethod();
} else {
result.notImplemented();
}
}
private void myMethod() {
// my intent instance will be here
startActivityForResult(intent, REQUEST_CODE); // Cannot resolve method 'startActivityForResult'
}
#Override
public boolean onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
try {
if (requestCode == REQUEST_CODE) {
result.success("done");
} else {
result.error("Something went wrong", null, null);
}
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.toString());
}
return false;
}
}
Try this solution to get the Context. After, call the intent using the Context:
private void myMethod() {
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}

Passing ExoPlayer instance from activity to binded service?

I'm trying to make a Video Player using ExoPlayer that can also work in the background and you can control it through the notification. I already created the ExoPlayer and the ForeGround Service for the notification and i binded them. At the moment it works as intended, the only problem is that i don't want the activity player to stop working when i close the notification. This happens because at the moment i'm creating the ExoPlayer instance in the service and then i pass the instance to the Activity, so when i close the notification the instance gets lost. Is there a way to initialize the player instance in the Activity and then pass that instance to the service so i can still control the video from the notification without risking to lose the instance once the notification is closed?
I'm pretty new to android and this is the first time that i'm binding a service to an activity so i don't really know how to do it. I tried searching on Google but that didn't help either.
This is the Activity
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
playerView=findViewById(R.id.player_view);
intent=new Intent(this,AudioPlayerService.class);
//here i will add the url that needs to be loaded
//but at the moment this is just a draft
Util.startForegroundService(this,intent);
playerView.setUseController(true);
//playerView.showController();
playerView.setControllerAutoShow(true);
playerView.setControllerHideOnTouch(true);
}
private ServiceConnection mConnection = new ServiceConnection() {
#Override
public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
AudioPlayerService.LocalBinder binder = (AudioPlayerService.LocalBinder) iBinder;
mService = binder.getService();
mBound = true;
initializePlayer();
}
#Override
public void onServiceDisconnected(ComponentName componentName) {
mBound = false;
}
};
#Override
public void onStart() {
super.onStart();
bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
initializePlayer();
}
#Override
protected void onStop() {
unbindService(mConnection);
mBound = false;
super.onStop();
}
private void releasePlayer() {
if (player != null) {
player.release();
player = null;
}
}
private void initializePlayer() {
if (mBound) {
SimpleExoPlayer player = mService.getplayerInstance();
playerView.setPlayer(player);
}
}
}
This is the Service
#Override
public IBinder onBind(Intent intent) {
return mBinder;
}
public SimpleExoPlayer getplayerInstance() {
if (player == null) {
startPlayer();
}
return player;
}
public class LocalBinder extends Binder {
public AudioPlayerService getService() {
return AudioPlayerService.this;
}
}
#Override
public void onCreate() {
super.onCreate();
final Context context=this;
}
private void startPlayer() {
final Context context = this;
player = ExoPlayerFactory.newSimpleInstance(context, new DefaultTrackSelector());
ProgressiveMediaSource mediaSource = new ProgressiveMediaSource.Factory(new DefaultHttpDataSourceFactory("NotificationSync", 10000, 10000, true))
.createMediaSource(Uri.parse("https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"));
player.prepare(mediaSource);
player.setPlayWhenReady(true);
playerNotificationManager = PlayerNotificationManager.createWithNotificationChannel(context, "1",
R.string.app_name,
2,
new PlayerNotificationManager.MediaDescriptionAdapter() {
#Override
public String getCurrentContentTitle(Player player) {
return "title";
}
#Nullable
#Override
public PendingIntent createCurrentContentIntent(Player player) {
Intent intent = new Intent(context, MainActivity.class);
return PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
}
#Nullable
#Override
public String getCurrentContentText(Player player) {
return "text";
}
#Nullable
#Override
public Bitmap getCurrentLargeIcon(Player player, PlayerNotificationManager.BitmapCallback callback) {
return null;
}
}, new PlayerNotificationManager.NotificationListener() {
#Override
public void onNotificationCancelled(int notificationId, boolean dismissedByUser) {
stopSelf();
}
#Override
public void onNotificationPosted(int notificationId, Notification notification, boolean ongoing) {
mNotification = notification;
mNotificationId = notificationId;
if (ongoing) {
startForeground(notificationId, notification);
}
}
}
);
playerNotificationManager.setPlayer(player);
playerNotificationManager.setUseStopAction(true);
}
#Override
public void onDestroy() {
releasePlayer();
super.onDestroy();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (player == null) {
//here i will get all the data from the intent that came from the
//activity (title,text,url...)
startPlayer();
}
return START_STICKY;
}
private void releasePlayer() {
if (player != null) {
player.release();
player = null;
}
}
}
In the end all i want to achieve is a video player that you start in the activity and also works/can be controlled through a notification without interruption when i go from activity->background and background->activity. If there are other ways to achieve this i'm open to try.

Android Webview signout issue

In my webview app when I run the app for the first time and log out from a user session, close the app and then when I open the app again instead of asking user credentials I find myself already logged in. I tried clearing cookies but then it always require sign in on every restart. I only want it to ask for sign in when the user logs out from the app.
Please Help!!
Here is a snippet of the code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
frameLayout = (FrameLayout) findViewById(R.id.framelayout);
bar = (ProgressBar) findViewById(R.id.progressBar2);
bar.setMax(100);
webview = (WebView) findViewById(R.id.mywebview);
webview.clearCache(true);
webview.clearHistory();
WebSettings mWebSettings = webview.getSettings();
mWebSettings.setSaveFormData(false);
swipe = (SwipeRefreshLayout) findViewById(R.id.swipe);
swipe.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
LoadWeb();
}
});
LoadWeb();
}
public void LoadWeb(){
webview = (WebView) findViewById(R.id.mywebview);
webview.setWebViewClient(new HelpClient());
webview.setWebChromeClient(new WebChromeClient(){
#Override
public void onProgressChanged(WebView view, int newProgress) {
frameLayout.setVisibility(View.VISIBLE);
bar.setProgress(newProgress);
setTitle("Loading....");
if (newProgress == 100){
frameLayout.setVisibility(View.GONE);
setTitle(view.getTitle());
}
super.onProgressChanged(view, newProgress);
}
});
webview.getSettings().setJavaScriptEnabled(true);
webview.setVerticalScrollBarEnabled(false);
webview.loadUrl(WebAddress);
webview.loadUrl("javascript:window.location.reload(true)");
swipe.setRefreshing(false);
bar.setProgress(0);
}
private class HelpClient extends WebViewClient{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
frameLayout.setVisibility(view.VISIBLE);
return true;
}
#Override
public void onPageFinished(WebView view, String url) {
swipe.setRefreshing(false);
}
#Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
try {
webview.stopLoading();
} catch (Exception e) {
}
if (webview.canGoBack()) {
webview.goBack();
}
webview.loadUrl("about:blank");
AlertDialog alertDialog = new AlertDialog.Builder(MainActivity.this).create();
alertDialog.setTitle("Error");
alertDialog.setMessage("Check your internet connection and try again.");
alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, "Try Again", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
finish();
startActivity(getIntent());
}
});
alertDialog.show();
super.onReceivedError(view, request, error);
}
}
#Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK){
if (webview.canGoBack()){
webview.goBack();
return true;
}
}
return super.onKeyDown(keyCode, event);
}
Run below code before loadUrl()
WebStorage webStorage = WebStorage.getInstance();
webStorage.deleteAllData();
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.removeAllCookie();
I test it using Gmail account
CookieSynManager is now deprecated. This works for me :
WebStorage.getInstance().deleteAllData()
CookieManager.getInstance().removeAllCookies(null)

Deezer android sdk UI freeze during login

I implemented the Deeezer android SDK in my application and I got a user who can't log into its Deezer account on its Motorola Razr I. The login UI freezes on this page and the application restarts. He doesn't encounter the issue on its other devices.
The SDK version I use is 0.9.3
Here is a screenshot of the page where the application freezes.
What kind of information would help identify the issue?
Edit
Here is the source code :
public class LoginActivity extends Activity
{
protected static final String[] PERMISSIONS = new String[] {"basic_access", "manage_library", "delete_library", "listening_history", "manage_community"};
// DeezerConnect object
private DeezerConnect m_deezerConnect;
// Handle connection callbacks.
private DialogHandler m_dialogHandler = new DialogHandler();
// if the authentication failed, retry once
private boolean m_firstTry = true;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.login_activity);
m_deezerConnect = new DeezerConnectImpl(getString(R.string.deezer_app_id));
SessionStore sessionStore = new SessionStore();
AlertDialog.Builder deezerAuthDialog = new AlertDialog.Builder(this);
deezerAuthDialog.setTitle(R.string.deezer_authentication);
deezerAuthDialog.setMessage(R.string.enter_deezer_credentials);
deezerAuthDialog.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener()
{
#Override
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
connectToDeezer(m_dialogHandler);
}
});
deezerAuthDialog.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener()
{
#Override
public void onClick(DialogInterface dialog, int which)
{
dialog.dismiss();
finish();
}
});
deezerAuthDialog.setOnCancelListener(new DialogInterface.OnCancelListener()
{
#Override
public void onCancel(DialogInterface dialog)
{
finish();
}
});
deezerAuthDialog.show();
}
#Override
public void onResume()
{
super.onResume();
}
#Override
public void onDestroy()
{
super.onDestroy();
}
/**
* Connects to Deezer web services using an injectable DialogListener listener.
* #param listener event listener that will be notified of the connection progress.
*/
private void connectToDeezer(final DialogListener listener)
{
m_deezerConnect.authorize(this, PERMISSIONS, listener);
}
/** Handle DeezerConnect callbacks. */
private class DialogHandler implements DialogListener
{
#Override
public void onComplete(final Bundle values)
{
SessionStore sessionStore = new SessionStore();
sessionStore.save(m_deezerConnect, LoginActivity.this);
LoginActivity.this.finish();
}
#Override
public void onDeezerError(final DeezerError deezerError)
{
Log.e(DeemoteGlobals.TAG, "DialogError error during login" , deezerError );
LoginActivity.this.finish();
}
#Override
public void onError(final DialogError dialogError)
{
// the api returns an error while the authentication succeed, so we force a retry once
int errorCode = dialogError.getErrorCode();
if (errorCode == -10 && m_firstTry)
{
m_firstTry = false;
connectToDeezer(m_dialogHandler);
return;
}
Log.e(DeemoteGlobals.TAG, "DialogError error during login", dialogError);
}
LoginActivity.this.finish();
}
#Override
public void onCancel()
{
LoginActivity.this.finish();
}
#Override
public void onOAuthException(OAuthException oAuthException)
{
LoginActivity.this.finish();
}
}
}

promixitylistner working even after unregistring it

I am devolping an application which turns the screen off and on based proximity sensor. The code i wrote sucessful turns the screen off and on.
This is the acivity from which the proximity sensors are registed and unregistered
MainActivity.java
public class MainActivity extends Activity {
public String TAG = "MainActivity";
BackgroundService mService;
boolean mBound = false;
boolean firstTime = true;
Intent BackgroundIntent ;
private ServiceConnection mConnection = new ServiceConnection() {
#Override
public void onServiceDisconnected(ComponentName arg0) {
// TODO Auto-generated method stub
Log.w(TAG, "Service Disconeted");
mBound = false;
mService = null;
}
#Override
public void onServiceConnected(ComponentName name, IBinder service) {
// TODO Auto-generated method stub
LocalBinder binder = (LocalBinder)service;
mService = binder.getService();
mBound=true;
if(firstTime){
MainActivity.this.onStart();
}
firstTime = false;
Log.w(TAG, "Service Connectedd");
}
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.w(TAG, "onCreate()");
setContentView(R.layout.activity_main);
Button buttonStart = (Button)findViewById(R.id.button1);
Button buttonStop = (Button)findViewById(R.id.button2);
buttonStart.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
mService.enableSensor();
Log.w(TAG, "ButtonStart Clicked");
}
});
buttonStop.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(mBound){
mService.disableSensor();
}
Log.w(TAG, "ButtonSTOP Clicked");
}
});
startService(new Intent(this,BackgroundService.class));
}
#Override
public void onStart(){
super.onStart();
Log.w(TAG, "onStart Method");
Intent intent = new Intent(getApplicationContext(),BackgroundService.class);
getApplicationContext().bindService(intent, mConnection, Context.BIND_AUTO_CREATE);
}
#Override
protected void onStop(){
super.onStop();
if(mBound){
getApplicationContext().unbindService(mConnection);
Log.w(TAG, "Unbinding the service");
}
Log.w(TAG, "onStop Method");
}
}
This is the service which has a SensorEventListner which which listens to the changes in the proximity sensor
BackgroundService.java
public class BackgroundService extends Service{
public String TAG = "BackgroundService";
private final IBinder mBinder = new LocalBinder();
private SensorManager mSensorManager ;
private Sensor mProximitySensor ;
private SensorEventListener mSenosorEventListener;
private PowerManager.WakeLock proximityWakeLock;
public float maxSensorValue;
#Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
Log.e(TAG, "Binding with backgroundService");
return mBinder;
}
public class LocalBinder extends Binder{
BackgroundService getService(){
return BackgroundService.this;
}
}
#Override
public void onCreate(){
Log.w(TAG, "BackgroundService Created");
proximityWakeLock = ((PowerManager)getSystemService("power")).newWakeLock(32, "");
proximityWakeLock.setReferenceCounted(false);
mSensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE);
mProximitySensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
maxSensorValue = mProximitySensor.getMaximumRange();
mSenosorEventListener = new SensorEventListener() {
#Override
public void onSensorChanged(SensorEvent event) {
// TODO Auto-generated method stub
if(event.sensor.getType() == Sensor.TYPE_PROXIMITY ){
if(event.values[0] == maxSensorValue)
{
Log.w(TAG, "Object moved ****AWAY*****");
screanTurnOn();
}
else{
Log.w(TAG, "Object moved ****NEAR******");
screanTurnOFF();
}
}
}
#Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "Sensor Accuracy Changed", Toast.LENGTH_SHORT).show();
}
};
}
#Override
public void onDestroy(){
mSensorManager.unregisterListener(mSenosorEventListener);
Log.w(TAG, "BackgroundService is Destroyed");
super.onDestroy();
}
public void screanTurnOFF(){
if(proximityWakeLock.isHeld()){
this.proximityWakeLock.release();
Log.e(TAG,"WakeLock is released");
}
}
public void screanTurnOn(){
if(!proximityWakeLock.isHeld())
proximityWakeLock.acquire();
while(proximityWakeLock.isHeld()){
Log.e(TAG, "WakeLock is acurqerd");
return;
}
}
public void enableSensor(){
if(mProximitySensor == null){
Log.w(TAG, "No Proximity detector found");
}else{
mSensorManager.registerListener(mSenosorEventListener, mProximitySensor,SensorManager.SENSOR_DELAY_NORMAL);
Log.w(TAG, "Proximity detector Enabled : "+ mProximitySensor.getName());
}
}
public void disableSensor(){
mSensorManager.unregisterListener(mSenosorEventListener,mProximitySensor);
Log.w(TAG, "Proximity Detector Disabled : " + EnableProximitySensor);
}
}
I have two buttons, one that registers the SensorEventListner to the sensor manager, and one to unregister it. The first button works perfectly. When i click on the second button, the ProximityEventListen remain unregistered.The sensoEventLister still works but the app will not show any Log messages from the BackGroundService.
If i comment out the screenTurnON() and screenTurnOFF() functions, the code works perfectly.
Please Help me out