Android broadcast Receiver (broadcast message) application example

Using intent to send broadcast messages, the content of the broadcast message can be either application-related data information or Android system messages such as network connection changes, battery change, receiving text messages, or system settings changes.

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Code: (main activity)

1  PackageCom.example.playmessage;2 3 Importandroid.app.Activity;4 Importandroid.content.Intent;5 ImportAndroid.os.Bundle;6 ImportAndroid.view.Menu;7 ImportAndroid.view.MenuItem;8 ImportAndroid.view.View;9 ImportAndroid.view.View.OnClickListener;Ten ImportAndroid.widget.Button; One  A  Public classMainactivityextendsActivity { - Button Ob1; - Intent Intent; the @Override -     protected voidonCreate (Bundle savedinstancestate) { -         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.activity_main); +          -ob1=(Button) Findviewbyid (R.ID.BU1); Button +Intent=NewIntent ("Com.example.playmessage"); Set unique identities AOb1.setonclicklistener (NewOnclicklistener () { at              - @Override -              Public voidOnClick (View v) { -                 //TODO auto-generated Method Stub - Sendbroadcast (Intent); Send broadcast -                  in             } -         }); to          +          -     } the  *  $}

Broadcast-receiver

1  PackageCom.example.playmessage;2 3 ImportAndroid.content.BroadcastReceiver;4 ImportAndroid.content.Context;5 Importandroid.content.Intent;6 ImportAndroid.media.MediaPlayer;7 ImportAndroid.widget.Toast;8 9  Public classMyreceiverextendsBroadcastreceiver {Ten      PublicMyreceiver () { One     } A MediaPlayer play; - @Override -      Public voidOnReceive (Context context, Intent Intent) { the         //Todo:this method is called if the Broadcastreceiver is receiving -         //An Intent broadcast. -Toast.maketext (Context, "receive broadcast, play Music", 2). Show ();; -play=mediaplayer.create (context,r.raw.sleep); + Play.start (); -          +     } A}

Need to add intent filtering in the manifest file under Broadcast-receiver

<intent-filter>

<action android:name= "Unique identification of settings"/>

<intent-filter>

Android broadcast Receiver (broadcast message) application example