网络更改的广播接收器未执行

Question

I need a Broadcast Receiver name "NetworkReciver.java" that should execute when Internet is Connected or Disconnected. But it is noit executing.

Manifest permissions

 <uses-permission android:name="android.permission.INTERNET" />
 <uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
 <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />


 <receiver android:name=".NetworkReciever" >
    <intent-filter>
       <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
    </intent-filter>
</receiver>

In MainActivity.java requested permissions

String[] permissionsRequired = new String[]{Manifest.permission.SET_ALARM,
     Manifest.permission.INTERNET,
     Manifest.permission.ACCESS_NETWORK_STATE,};
     // Since these are Normal Permissions
     ActivityCompat.requestPermissions(this, permissionsRequired, 1);

NetworkReciever.java:

public class NetworkReciever extends BroadcastReceiver 
{

         @Override
         public void onReceive(Context context, Intent intent)
         {
                Log.i("KAMLESH", "Network REceiver Alarm Set in Hair Style");
         }
}

Answer 1

From documentation

Apps targeting Android 7.0 (API level 24) and higher do not receive CONNECTIVITY_ACTION broadcasts if they declare the broadcast receiver in their manifest. Apps will still receive CONNECTIVITY_ACTION broadcasts if they register their BroadcastReceiver with Context.registerReceiver() and that context is still valid.

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It means you need to register your receiver dynamically, not from manifest. Read Dynamically register/unregister a broadcast receiver in android which will give you the idea about dynamic way.

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NOTE : The CONNECTIVITY_ACTION is deprecated since API 28. There are few other options introduced and you can find in the same url CONNECTIVITY_ACTION

Answer 2

you must register NetworkReciever this broadcast receiver like registerReceiver(new NetworkReciever()); in any activity