How to set permissions in broadcast sender and receiver in android

Question

How do we specify in broadcast sending application that which application can receive this broadcast, and in receiving application that which particular application has the

Answer 1

Declare permission

First you need declare your permission in your AndroidManifest.xml

the android:name value is used as permission value and will used later.

Usage

There are two kinds of permission usages related to broadcast receiver:

(1) Control which application can receive your broadcast:

String PERMISSION_STRING_PRIVATE_RECEIVER = "YOU_NEED_THIS_TO_RECEIVE_THIS_BROADCAST"
sendBroadcast(intent, PERMISSION_STRING_PRIVATE_RECEIVER);

With this usage, you can control only authorized application can handle the broadcast you sent.

(2) Only handle the broadcasts have the specified permission

String PERMISSION_STRING_PRIVATE_BROADCASTER = "ONLY HANDLE BROADCASTS WITH THIS PERMISSION"
IntentFilter filter = new IntentFilter(ACTION_SAMPLE);
registerReceiver(mReceiver, filter, PERMISSION_STRING_PRIVATE_BROADCASTER, null);

With this usage, you can make sure that the broadcaster is authorized.