CODEWITHSUNDEEP
androidandroid-intentbroadcastreceiverandroid-broadcast
Adrian Olar
Adrian Olar

Reputation: 2903

Android Broadcast Intent not working between 2 separate applications

I am trying to shutdown an activity from another application, hence another activity. I am doing this using the BroadcastReceiver class and Intent.

Here's what I do:

In the first Activity:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    findViewById(R.id.update_btn).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            PackageManager pm = getPackageManager();
            Intent intent = pm.getLaunchIntentForPackage("<package name here>");
            intent.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES);
            intent.setAction("finish_activity");
            sendBroadcast(intent);
        }
    });
}

I send a broadcast with a specific action.

In the other app's activity I am doing the following:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    [...]
    BroadcastReceiver broadcast_reciever = new BroadcastReceiver() {

        @Override
        public void onReceive(Context arg0, Intent intent) {
            System.out.println("Received broadcast!!");
            Toast.makeText(MainActivity.this, "received broadcast", Toast.LENGTH_LONG).show();
            String action = intent.getAction();
            if (action.equals("finish_activity")) {
                postEvent(new ShutdownEvent());
                finish();
                // DO WHATEVER YOU WANT.
            }
        }
    };
    registerReceiver(broadcast_reciever, new IntentFilter("finish_activity"));
}

Mainly I create the Receiver and I register it. However this doesn't seem to be working, it seems that my code does not execute until here.

Any suggestions highly appreciated.

Thanks!

Upvotes: 0

Views: 1328

Answers (1)

Tomislav Novoselec
Tomislav Novoselec

Reputation: 4620

In order to expose your BroadcastReceiver to the other apps, you should declare it in your manifest, and mark it as exported. This way the system knows how to trigger it.

A good article on how to use BroadcastReceivers http://www.vogella.com/tutorials/AndroidBroadcastReceiver/article.html#ownreceiver_create

Upvotes: 2

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