Implement the broadcast & receiver and local of both.

README.md

[TOC]

Introduction

1. Broadcast & Receiver
2. LocalBroadcast & LocalReceiver

Broadcast & Receiver

• Dynamic register: By through your java code.

BroadcastReceiver receiver = new Receiver();

// Register the receiver.
@override
protected onResume()
{
    super.onResume();
    IntentFilter ifilter = new IntentFilter().addAction("app.your.receiver.name");
    registerReceiver(receiver, ifilter);
}

// Don't forget unregistering the receiver.
@override
protected onPause()
{
    super.onPasue();
    unregisterReceiver(receiverDetect);
}

• Static register: By through the AndroidManifest.xml.

<receiver
    android:name="Your_Receiver"
    android:exported="false" >
    <intent-filter>
          <action android:name="app.your.receiver.name" />
    </intent-filter>
</receiver>

LocalBroadcast & LocalReceiver

• Local broadcast and receiver.

localActivity.java

public class LocalActivity extends Activity
{
    private LocalBroadcastManager localBroadcastManager;
    private LocalReceiver localReceiver;
    
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        this.localBroadcastManager = LocalBroadcastManager.getInstance(this);
    }

    protected void broadcast()
    {
        // Notice!! This is for local broadcast.
        Intent intent = new Intent("app.your.receiver.name");
        intent.putExtra("msg", "Hello world!");
        this.localBroadcastManager.sendBroadcast(intent);
    }
    
    protected void register()
    {
        // Register local receiver.
        IntentFilter localIntentTilter = new IntentFilter("app.your.receiver.name");
        this.localReceiver = new LocalReceiver();
        this.localBroadcastManager.registerReceiver(localReceiver, localIntentTilter);
    }
    
    protected void unregister()
    {
        // Unregister local receiver.
        this.localBroadcastManager.unregisterReceiver(localReceiver);
    }
}

mainActivity.java

public class MainActivity extends Activity
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        this.broadcast();
    }

    protected void broadcast()
    {
        // Notice!! This is for global broadcast.
        Intent intent = new Intent().setAction("app.your.receiver.name");
        intent.putExtra("msg", "Hello world!");
        context.sendBroadcast(intent);
    }
}

receiver.java

public class Receiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        String msg = String.valueOf(intent.getExtra().get("msg"));
        Log.v("BroadcastReveiver", msg);
    }
}