Which target have your emulator? For Google Services like GCM, use a &quot;Google APIs&quot; (any version) target to receive push notifications

Edit your Android Virtual Machine (AVD) Target to use &#39;Google APIs&#39; to enable GCM Push Notifications to be received by the emulator.

![enter image description here][1]


  [1]: http://i.stack.imgur.com/eLuG6.png

Was your emulator receiving Firebase push notifications before? If yes, force reboot your emulator.

Ensure you connected a google account on the emulator

If you reach her, then you can try [this][1] answer.

Noting that no need to login in emulator with any google account.

  [1]: https://stackoverflow.com/a/69045105/2828651

I&#39;m currently using a explicit cast to long and using `%ld` for printing `pid_t`, is there a specifier such as `%z` for `size_t` for `pid_t`?

If not what the best way of printing `pid_t`?


What is the correct printf specifier for printing pid_t

Is it possible to select text vertically/in a column in PyCharm? You can do it in Visual Studio and Notepad++ by holding down alt+arrow keys.

The documentation describes how to do it with the mouse, but there&#39;s no mention of keyboard options.

http://www.jetbrains.com/pycharm/webhelp/selecting-text-in-the-editor.html#d306531e464

Vertical/Column text select in PyCharm?

I&#39;m using push notifications on google cloud, however for some reason i cant receive push notifications on the emulator. 

The same application does receive notifications when i test it on a real device however.

Has anyone else encountered this or found solutions to it? the emulated device has net access and is the same android version as the real one so i cant think of any reason it shouldn&#39;t work.

Android emulator not receiving push notifications

I'm using push notifications on google cloud, however for some reason i cant receive push notifications on the emulator.
The same application does receive notifications when i test it on a real device however.
Has anyone else encountered this or found solutions to it? the emulated device has net access and is the same android version as the real one so i cant think of any reason it shouldn't work.

android.R.attr.selectableItemBackground exists, but how do I add it programatically to an ImageButton? 

Also, how would I go about finding the answer in the documentation? It&#39;s mentioned [here][1], but I don&#39;t see any explanation of how it&#39;s actually used. Actually, I rarely seem to find the documentation useful, but I&#39;m hoping that&#39;s my fault and not that of the documentation.


  [1]: https://developer.android.com/reference/android/R.attr.html

How do I add selectableItemBackground to an ImageButton programmatically?

I am working with Android Studio. Since last night, when I Run my project on my device, appear the message &quot;Waiting For Debugger&quot;. It is a very strange behavior because I am not debugging application.

I&#39;ve tried to uninstall application from my device and press Run on Android Studio. The message appears again.

I&#39;ve tried to restart Android Studio. The message appears again.

The only way to properly install application on my phone is to press &quot;Debug&quot;. The message appears but its automatically closed. Then application works fine.

I&#39;ve tried with

    &lt;application android:debuggable=&quot;false&quot; /&gt;

... and still the message appears.

LogCat says:

    E/InputDispatcher﹕ channel ~ Channel is unrecoverably broken and will be disposed!
    E/Launcher﹕ Error finding setting, default accessibility to not found: accessibility_enabled

Regards on first error line, [someone says that the problems can starts after renaming of some resource][1]. But its not my case.

Regards on second error line, ... I don&#39;t know. I really don&#39;t know what happens to my IDE.

  [1]: https://stackoverflow.com/questions/12459719/why-i-am-getting-error-channel-is-unrecoverably-broken-and-will-be-disposed

Why Android Studio says &quot;Waiting For Debugger&quot; if am NOT debugging?

I have some Test which I would like to run with Robolectric, I use the 2.3-SNAPSHOT as my APP uses the ActionbarCompat i needed to use 2.3-SNAPSHOT Version as Robolectric could not find the AppCompat Themes before. So I setup the Classpath in Eclipse and I end up with this:

    java.lang.UnsupportedOperationException: Robolectric does not support API level 9, sorry!
    at org.robolectric.SdkConfig.&lt;init&gt;(SdkConfig.java:24)
    at org.robolectric.RobolectricTestRunner.pickSdkVersion(RobolectricTestRunner.java:288)
    at org.robolectric.RobolectricTestRunner.getEnvironment(RobolectricTestRunner.java:264)
    at org.robolectric.RobolectricTestRunner.access$100(RobolectricTestRunner.java:57)
    at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:186)
    at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:172)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

The Manifest of my Test Project is like this:

    &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
          package=&quot;com.vendor.test&quot; 
          android:versionCode=&quot;1&quot;
          android:versionName=&quot;1.0&quot;&gt;
          &lt;application&gt;
               &lt;uses-library android:name=&quot;android.test.runner&quot; /&gt;
          &lt;/application&gt;
          &lt;uses-sdk android:minSdkVersion=&quot;19&quot; android:targetSdkVersion=&quot;19&quot; /&gt;
          &lt;instrumentation android:name=&quot;android.test.InstrumentationTestRunner&quot;
           android:targetPackage=&quot;com.vendor&quot; /&gt;
    &lt;/manifest&gt;

I complains always about the API Level, no matter what i use.


Anyone got this working ?






Does Robolectric support API level?

In an app I am working on, I have several ImageButtons. Each ImageButton has a background and content in the form of a drawable. Right now the drawable is at maximum size within the confines of the ImageButton, but I want it to scale down so I need to add some padding. The thing is that when I try to do that, it doesn&#39;t have any effect. My XML is as follows for each ImageButton:

    &lt;ImageButton
	    android:id=&quot;@+id/button_zero&quot;
	    android:layout_width=&quot;0dip&quot;
	    android:layout_height=&quot;wrap_content&quot;
	    android:layout_weight=&quot;1&quot;
        android:padding=&quot;10dip&quot;
	    android:src=&quot;@drawable/button_zero&quot;
	    android:background=&quot;@drawable/button_background&quot; /&gt;

Any ideas why the padding doesn&#39;t do anything?

**Full XML code:**

    &lt;RelativeLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        xmlns:tools=&quot;http://schemas.android.com/tools&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;match_parent&quot;
        android:background=&quot;#222222&quot;
        tools:context=&quot;.Main&quot; &gt;
    
	    &lt;LinearLayout
	        android:layout_width=&quot;match_parent&quot;
	        android:layout_height=&quot;wrap_content&quot;
	        android:orientation=&quot;vertical&quot; &gt;
	
	        &lt;!-- Row One --&gt;
	        &lt;LinearLayout
	            android:layout_width=&quot;match_parent&quot;
	            android:layout_height=&quot;wrap_content&quot;
	            android:orientation=&quot;horizontal&quot; &gt;
	            &lt;ImageButton
	                android:id=&quot;@+id/button_zero&quot;
	                android:layout_width=&quot;0dip&quot;
	                android:layout_height=&quot;wrap_content&quot;
	                android:layout_weight=&quot;1&quot;
                    android:padding=&quot;10dip&quot;
	                android:src=&quot;@drawable/button_zero&quot;
	                android:background=&quot;@drawable/button_front&quot; /&gt;
	            &lt;ImageButton
	                android:id=&quot;@+id/button_one&quot;
	                android:layout_width=&quot;0dip&quot;
	                android:layout_height=&quot;wrap_content&quot;
	                android:layout_weight=&quot;1&quot;
                    android:padding=&quot;10dip&quot;
	                android:src=&quot;@drawable/button_one&quot;
	                android:background=&quot;@drawable/button_front&quot; /&gt;
	            &lt;ImageButton
	                android:id=&quot;@+id/button_two&quot;
	                android:layout_width=&quot;0dip&quot;
	                android:layout_height=&quot;wrap_content&quot;
	                android:layout_weight=&quot;1&quot;
                    android:padding=&quot;10dip&quot;
	                android:src=&quot;@drawable/button_two&quot;
	                android:background=&quot;@drawable/button_front&quot; /&gt;
	            &lt;ImageButton
	                android:id=&quot;@+id/button_three&quot;
	                android:layout_width=&quot;0dip&quot;
	                android:layout_height=&quot;wrap_content&quot;
	                android:layout_weight=&quot;1&quot;
                    android:padding=&quot;10dip&quot;
	                android:src=&quot;@drawable/button_three&quot;
	                android:background=&quot;@drawable/button_front&quot; /&gt;
	            &lt;ImageButton
	                android:id=&quot;@+id/button_four&quot;
	                android:layout_width=&quot;0dip&quot;
	                android:layout_height=&quot;wrap_content&quot;
	                android:layout_weight=&quot;1&quot;
                    android:padding=&quot;10dip&quot;
	                android:src=&quot;@drawable/button_four&quot;
	                android:background=&quot;@drawable/button_front&quot; /&gt;
	        &lt;/LinearLayout&gt;
	    
            ... same for other rows
	        
	    &lt;/LinearLayout&gt;

&lt;/RelativeLayout&gt;

Padding not working on ImageButton

I have an android app which displays a white screen for 2 seconds on startup. My other apps don&#39;t do this, but this one does. I have also implemented a splashscreen with the hope that it would fix this. Should I increase my splash screen sleep time?
Thanks.

How To fix white screen on app Start up?

I tried and tried to generate a .pem file, every time generating certificates from the client&#39;s account and then generating the .pem file using the terminal, but it&#39;s of no use. Can anyone give a step-by-step procedure?

Generate .pem file used to set up Apple Push Notifications

I am building an app that is heavily relies on APN. Upon the very first start of my app, iOS asks if this app is allowed to use APN (as a result of `registerForRemoteNotificationTypes:` call). However once dismissed, this dialog is never popping up back. I have to manually go to `Settings-&gt;Notifications-&gt;MyApp` to enable/disable things there. So is there a way to avoid this hustle and actually experience what user will experience upon the very first start every time I start my app in debug mode?

How to get back &quot;Allow Push Notifications&quot; dialog after it was dismissed once?

I&#39;m trying to implement background push notification handling, but I&#39;m having issues with determining whether the user opened the app from the push notification that was sent as opposed to opening it from the icon.

	- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {

	    //************************************************************
	    // I only want this called if the user opened from swiping the push notification. 
	    // Otherwise I just want to update the local model
	    //************************************************************
	    if(applicationState != UIApplicationStateActive) {
		    MPOOpenViewController *openVc = [[MPOOpenViewController alloc] init];
		    [self.navigationController pushViewController:openVc animated:NO];
		} else {
			///Update local model
		}

		completionHandler(UIBackgroundFetchResultNewData);
	}

With this code, the app is opening to the MPOOpenViewController regardless of how the user opens the app. How can I make it so that the view controller is only pushed if they open the app from swiping the notification?

With the same code, this worked on iOS 6, but with the new iOS 7 method, it doesn&#39;t behave how I want it to.

**Edit:** I&#39;m trying to run the app on iOS 7 now, and we are not supporting any version prior to iOS 7. I used this same exact code in the iOS 6 version of the method (without the completion handler) and it behaved the way I&#39;d expect it to. You&#39;d swipe the notification and this would get called. If you opened from the icon, the method would never be called.

didReceiveRemoteNotification: fetchCompletionHandler: open from icon vs push notification

&gt; **Update:** [GCM][1] is deprecated, use [FCM][2]

I am implementing Google Cloud Messaging in my application. Server code is not ready yet and in my environment due to some firewall restrictions I can not deploy a test sever for push notification. What I am looking for is a online server which would send some test notifications to my device to test my client implementation.

  [1]: https://developers.google.com/cloud-messaging/
  [2]: https://firebase.google.com/docs/cloud-messaging/

Android: Test Push Notification online (Google Cloud Messaging)

I have tested push notifications as a developer account and it worked, But when i tried to put it on TestFlight for the testers to test it, it didn&#39;t show a push notification but the data is correctly received, So is there a kind of certificate that i need to generate for TestFlight?

Why push notifications is not working on testflight?

&gt; **Update:** [GCM][1] is deprecated, use [FCM][2]

How to **refresh** activity on **receiving gcm push notification** if my app is **open**. I have an activity which contains listview filled with data from the server. I want to refresh my activity (***here adding one more item to listview***) , if I receive gcm push notification(which also contains some data).   

 - One alternative is to add ***timer*** that periodically do server requests and update the list adapter data but I don&#39;t want these because it will take much resources.  
 - Do I need to add ***broadcast receiver*** which will trigger on receiving gcm push which further request for newer server data and update my activity UI? 
  
Dear commentors, please read the question carefully, I only need to **refresh the list** (if app is open and that particular activity is open) **else no need for same**.

  [1]: https://developers.google.com/cloud-messaging/
  [2]: https://firebase.google.com/docs/cloud-messaging/

Refreshing activity on receiving gcm push notification

In my android application, i want to set Notification icons dynamically which will be loaded from URL. For that, i have used `setLargeIcon` property of NotificationBuilder in `receiver`.I reffered many link and tried various solutions but couldn&#39;t get desired output. Though i downloaded that image from url and setting that bitmap in notification, it is not being displayed. Instead it displays the `setSmallIcon` image as large icon. I don&#39;t know where i am going wrong. Here i am posting my code. Please help me to solve this issue. Thank you.

Code:

    @SuppressLint(&quot;NewApi&quot;)
    public class C2DMMessageReceiver extends BroadcastReceiver {
    
    	@Override
    	public void onReceive(Context context, Intent intent) {
    		String action = intent.getAction();
    		if (&quot;com.google.android.c2dm.intent.RECEIVE&quot;.equals(action)) {
    			Log.e(&quot;C2DM&quot;, &quot;received message&quot;);
    			final String fullName = intent.getStringExtra(&quot;message&quot;);
    			final String payload1 = intent.getStringExtra(&quot;message1&quot;);
    			final String payload2 = intent.getStringExtra(&quot;message2&quot;);
    			final String userImage = intent.getStringExtra(&quot;userImage&quot;);
    			
    			Log.e(&quot;userImage Url :&quot;, userImage); //it shows correct url
    
    			new sendNotification(context)
    					.execute(fullName, payload1, userImage);
    		}
    	}
    
    private class sendNotification extends AsyncTask&lt;String, Void, Bitmap&gt; {
    
    		Context ctx;
    		String message;
    
    		public sendNotification(Context context) {
    			super();
    			this.ctx = context;
    		}
    
    		@Override
    		protected Bitmap doInBackground(String... params) {
    
    			InputStream in;
    			message = params[0] + params[1];
    			try {
    
    				in = new URL(params[2]).openStream();
    				Bitmap bmp = BitmapFactory.decodeStream(in);
    				return bmp;
    
    			} catch (MalformedURLException e) {
    				e.printStackTrace();
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    			return null;
    		}
    
    		@Override
    		protected void onPostExecute(Bitmap result) {
    
    			super.onPostExecute(result);
    			try {
    				NotificationManager notificationManager = (NotificationManager) ctx
    						.getSystemService(Context.NOTIFICATION_SERVICE);
    				
    				Intent intent = new Intent(ctx, NotificationsActivity.class);
    				intent.putExtra(&quot;isFromBadge&quot;, false);
    				
    
    				Notification notification = new Notification.Builder(ctx)
    						.setContentTitle(
    								ctx.getResources().getString(R.string.app_name))
    						.setContentText(message)
    						.setSmallIcon(R.drawable.ic_launcher)
    						.setLargeIcon(result).build();
    
    				// hide the notification after its selected
    				notification.flags |= Notification.FLAG_AUTO_CANCEL;
    
    				notificationManager.notify(1, notification);
    
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    		}
    	}

Load image from url in notification Android

I am using Google notifications in my app, and until now I have done below in the manifest:

    &lt;!-- GCM --&gt;
    &lt;uses-permission android:name=&quot;android.permission.GET_ACCOUNTS&quot; /&gt; &lt;!-- GCM requires a Google account. --&gt;
    &lt;uses-permission android:name=&quot;android.permission.WAKE_LOCK&quot; /&gt; &lt;!-- Keeps the processor from sleeping when a message is received. --&gt; 
    &lt;uses-permission android:name=&quot;com.google.android.c2dm.permission.RECEIVE&quot; /&gt; &lt;!-- This app has permission to register and receive data message. --&gt; 
        
    &lt;!-- Creates a custom permission so only this app can receive its messages. NOTE: APP_PACKAGE.permission.C2D_MESSAGE --&gt;   
    &lt;permission android:name=&quot;com.myapp.permission.C2D_MESSAGE&quot; android:protectionLevel=&quot;signature&quot; /&gt;
    &lt;uses-permission android:name=&quot;com.myapp.permission.C2D_MESSAGE&quot; /&gt;    
    &lt;!-- END GCM --&gt;

It worked perfectly until I updated my Nexus 7 to Android 5.0.  
Now when I try to install the app in this device with Eclipse, I get this error:

&gt;INSTALL_FAILED_DUPLICATE_PERMISSION perm=com.myapp.permission.C2D_MESSAGE pkg=com.myapp

I don&#39;t understand what is wrong? It was working perfectly until Android 5.0.  
I know that I am using `C2D_MESSAGE` in two lines, `permission` and `uses-permission` but I have copied that code from the original Google GCM guide, so it must be fine.

INSTALL_FAILED_DUPLICATE_PERMISSION... C2D_MESSAGE

I am trying to send SNS messeges to android through web api.
Downloaded and installed the SDK from http://aws.amazon.com/developers/getting-started/php/

Got following error while running sample.php:

    Fatal error: Uncaught exception &#39;Aws\Common\Exception\InstanceProfileCredentialsException&#39; with message &#39;Error retrieving credentials from the instance profile metadata server. When you are not running inside of Amazon EC2, you must provide your AWS access key ID and secret access key in the &quot;key&quot; and &quot;secret&quot; options when creating a client or provide an instantiated Aws\Common\Credentials\CredentialsInterface object. ([curl] 28: Connection timed out after 5016 milliseconds [url] http://169.254.169.254/latest/meta-data/iam/security-credentials/)&#39; in C:\xampp\htdocs\aws-php\vendor\aws\aws-sdk-php\src\Aws\Common\InstanceMetadata\InstanceMetadataClient.php:85 Stack trace: #0 C:\xampp\htdocs\aws-php\vendor\aws\aws-sdk-php\src\Aws\Common\Credentials\RefreshableInstanceProfileCredentials.php(52): Aws\Common\InstanceMetadata\InstanceMetadataClient-&gt;getInstanceProfileCredentials() #1 C:\xampp\htdocs\aws-php\vendor\aws\aws-sdk-php\src\Aws\Common\Credentials\AbstractRefreshableCredentials.php(54): Aws\Common\Credentials\Refreshable in C:\xampp\htdocs\aws-php\vendor\aws\aws-sdk-php\src\Aws\Common\InstanceMetadata\InstanceMetadataClient.php on line 85

A little guidance on this topic will help me a lot


Content Type	Original Author	Original Content on Stackoverflow
Question	Christopher Lawless	View Question on Stackoverflow
Solution 1 - Android	iflorit	View Answer on Stackoverflow
Solution 2 - Android	David Douglas	View Answer on Stackoverflow
Solution 3 - Android	Victor Mwenda	View Answer on Stackoverflow
Solution 4 - Android	frapeti	View Answer on Stackoverflow
Solution 5 - Android	صلي علي محمد Atef Farouk	View Answer on Stackoverflow

Android emulator not receiving push notifications

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Solution 3 - Android

Solution 4 - Android

Solution 5 - Android

Vertical/Column text select in PyCharm?

What is the correct printf specifier for printing pid_t

Attributions