When android accepts the broadcast, how do you determine which application sent the broadcast?

View the interface that receives the broadcast:

Public abstract void onReceive (Context, intention);

There is a parameter context here, which is the context of the application that sends the broadcast, and the general application sends the broadcast in a way similar to the following:

Context context = MyActivity.this

Context.sendBroadcast (intention);

The context in the received broadcast is the context when it was sent here. By printing the context in onReceive, you can clearly know which application sent the broadcast:

Public void on Receive {

Log.w (tag, "context =“+context)；);

//。 . . . . .

}