Develop Reference

App not receiving boot completed intent in some devices

i created an app that always start a service once the device has completed booting.
This is the Manifest code..
<receiver>
android:name="StartMyServiceAtBootReceiver"
android:directBootAware ="true"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
<action android:name="android.intent.action.REBOOT"/>
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>
The service always start in some devices once boot is completed but in my own device which is running android 7.0, the boot completed service doesn't start unless i convert the app to system app using root access. Can someone tell me how to make the app to start the service on boot completed without converting it to a system app?

First of All
receiver android:name="StartMyServiceAtBootReceiver"
Your path to Receiver should written over here for example:
<receiver android:name=".receiver.BootReceiver">
first dot suggest your path till root of the package.
Create a BroadcastReceiver and register it to receive ACTION_BOOT_COMPLETED. You also need RECEIVE_BOOT_COMPLETED permission.
Read: Listening For and Broadcasting Global Messages , and Setting Alarms

Try into manifest
<receiver
android:name=".AutoStart"
android:enabled="true"
android:exported="true" >
<intent-filter android:priority="500" >
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
Make sure also to include the completed boot permission.
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
Also read this answer carefully

"Default activity not found"

I keep getting the "Default activity is not found" error whenever I want to try and run my app. I have tried 'clean project', 'invalidate caches/restart' and restarted my computer.
UPDATE: I tried running different projects, but they all give the same error too. This makes me think there must be something wrong with settings.
It works perfectly for my friend, but I get the error that the "Default activity is not found". If I try to launch a specific activity it also says the activity is not found. This is the code in the androidmanifest.xml file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="ek97.fhict.theapp">
<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<!--
The ACCESS_COARSE/FINE_LOCATION permissions are not required to use
Google Maps Android API v2, but you must specify either coarse or fine
location permissions for the 'MyLocation' functionality.
-->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission. ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/loqate_logo"
android:label="#string/app_name"
android:roundIcon="#drawable/loqate_logo"
android:supportsRtl="true"
android:theme="#style/AppTheme"
tools:ignore="GoogleAppIndexingWarning">
<activity
android:name=".bottomnavigationfinal"
android:label="#string/title_activity_bottomnavigationfinal"/>
<activity android:name="Settings" />
<activity
android:name=".Login"
android:label="#string/title_activity_login" />
<activity
android:name=".Registration"
android:exported="true"
android:label="#string/title_activity_registration" />
<activity android:name=".Navigation" />
<activity android:name=".SplashScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!--
The API key for Google Maps-based APIs is defined as a string resource.
(See the file "res/values/google_maps_api.xml").
Note that the API key is linked to the encryption key used to sign the APK.
You need a different API key for each encryption key, including the release key that is used to
sign the APK for publishing.
You can define the keys for the debug and release targets in src/debug/ and src/release/.
-->
<activity
android:name=".GoogleMaps"
android:label="#string/title_activity_google_maps" >
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="#string/google_maps_key" />
</activity>
<activity android:name=".Profile" />
</application>
</manifest>

If it works for your friend and it is the same code it could be that all you need to do is to refresh the cache of your IDE:
File -> Invalidate Caches / Restart

Try this::
Your manifest is missing default activity
Add to any activity as you consider a default activity
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>

I finally solved it by making sure all implementation versions were the same, there were some in a 28.0.0 version and others in a 26.1.0. version. Now the app works fine on the emulator. Thanks for your suggestions though

Broadcast Receiver not working when app is not running

My broadcast receiver does not work when the application is not running in the background.
Tried with different intent filters
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme.NoActionBar" >
<receiver android:name=".network.NetworkChangeReceiver"
android:enabled="true">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
</intent-filter>
</receiver>
<activity
android:name=".view.activity.MainActivity"
android:label="#string/app_name">
</activity>
<activity android:name=".view.activity.BarLoginActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
My receiver works fine when the app is running in the background but as soon as I remove my recent apps it does not work.
Running on API 19

Finally it worked in other android phones.
as broadcast receivers and services are by default not allowed in Xiaomi phones

I would try putting a android:process=":remote" in the Manifest definition of the receiver so that it will run on a separate task.

Haven't seen your entire AndroidManifest but my first suspect is that you're lacking the proper permission.
In order to listen to network changes you must declare that you are using this permission in the manifest like this
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
the next suspect is the name you gave, maybe try giving the full path to the reciever name

Parse.com Push Notification not working

I am not able to receive push notifications at all. onPushReceieved method in my receiver class is never called.
Here's what my manifest looks like:
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:protectionLevel="signature"
android:name="com.compName.appName.permission.C2D_MESSAGE" />
<uses-permission android:name="com.compName.appName.permission.C2D_MESSAGE" />
<application>
.
.
<service android:name="com.parse.PushService" />
<receiver android:name="com.compName.appName.helpers.MyParsePushReciever"
android:exported="false">
<intent-filter>
<action android:name="com.parse.push.intent.RECEIVE" />
<action android:name="com.parse.push.intent.DELETE" />
<action android:name="com.parse.push.intent.OPEN" />
</intent-filter>
</receiver>
<receiver android:name="com.parse.GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND">
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.compName.appName" />
</intent-filter>
</receiver>
</application
This is the init methods for Parse in my Applications onCreate Method:
Parse.initialize(this, app_id, client_id);
PushService.startServiceIfRequired(this);
ParseInstallation.getCurrentInstallation().saveInBackground();
Here is my Receiver class's onPushReceived method:
#Override
protected void onPushReceive(Context context, Intent intent) {
Log.i("hereeeeeeeeee === ", "on push recieve");
}
I am never able to see that Log. OnPushReceive never gets called. Is there something I am missing?

Check your manifest and gradle file, I think the package names are wrong.

I heard about parse.com is going to be off forever
and yes its down officially.
http://parse.com/
EDIT
As parse announced their shutdown recently, GCM is the only best option though it won’t comes with an admin interface.
You can follow this awesome tutorial for this.
http://www.androidhive.info/2016/02/android-push-notifications-using-gcm-php-mysql-realtime-chat-app-part-1/

I figured it out.
I had changed my package a long time ago. I had made changes to my manifest, but not in my gradle file.
Shout out to Taylor Courtney for continuing in helping me figure it out. He's the real MVP.

Android: Unable to receive GCM Messages/ Listener not being called

I am missing something and I am not sure what considering I followed the guide ie: https://developers.google.com/cloud-messaging/android/client
as well as checked my code against: https://github.com/googlesamples/google-services/tree/master/android/gcm/app/src/main/java/gcm/play/android/samples/com/gcmquickstart
My server side code is correct will successfully send out a GCM message but my android client does not receive anything.
I am thinking the issue lies somewhere in the manifest:
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mypackage.here"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="21" />
<permission
android:name="com.mypackage.here.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.mypackage.here.permission.C2D_MESSAGE" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<meta-data
android:name="com.google.android.gms.version"
android:value="#integer/google_play_services_version" />
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- C2DM service Receive -->
<!-- [START gcm_receiver] -->
<receiver
android:name="com.google.android.gms.gcm.GcmReceiver"
android:exported="true"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.mypackage.here" />
</intent-filter>
</receiver>
<!-- [END gcm_receiver] -->
<!-- [START gcm_listener] -->
<service
android:name=".EPAOAGcmListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
</intent-filter>
</service>
<!-- [END gcm_listener] -->
<!-- [START instanceId_listener] -->
<service
android:name=".EPAOAInstanceIDListenerService"
android:exported="false" >
<intent-filter>
<action android:name="com.google.android.gms.iid.InstanceID" />
</intent-filter>
</service>
<!-- [END instanceId_listener] -->
<service
android:name=".EPAOAGcmRegisterIntentService"
android:exported="false" >
</service>
<!-- C2DM service Receive End -->
</application>
</manifest>
I will note that I am registering and receiving the device token perfectly fine. I just cannot receive messages (notifications). If no immediate thoughts come to mind while looking through the manifest, it would be appreciated if a suggestion were to be made about the next place I should look.

Simple answer is: not to worry! For the first time it is obvious to take some time! It is attributed to the synchronization that happens in the Google Servers.
Furthermore, if its Notifications it can take up to 15-28 min delay, because:
The GCM framework part on the client phone use a TCP connection on the port 5228. This connection its used for push notifications, but as every tcp connection it can go on timeout with some routers/carriers that apply strict policies to kill inactive tcp connections (tcp idle timeout).
Most wifi routers kills inactive connections after 5 minutes for example, like mine.
The GCM framework use a keep-alive mechanism to send an heartbeat network packet every 15 minutes on wifi and every 28 minutes on 3G.

You should write your package's name which is com.mutalminds.epaoa instead of com.mypackage.here .