廣播接收器、

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="ex37.BroadcastReceiver_2"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="14" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name="ex37.BroadcastReceiver_2.BroadcastReceiver_2"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="ex37.BroadcastReceiver_2.TargetActivity"/>
        <receiver android:name="ex37.BroadcastReceiver_2.ToastBroadcastReceiver">
            <intent-filter>
                <action android:name="android.broadcast.TOAST"/>
            </intent-filter>
        </receiver>
        <receiver android:name="ex37.BroadcastReceiver_2.NotificationBroadcastReceiver">
            <intent-filter>
                <action android:name="android.broadcast.NOTIFICATION"/>
            </intent-filter>
        </receiver>
        <receiver android:name="ex37.BroadcastReceiver_2.ActivityBroadcastReceiver">
            <intent-filter>
                <action android:name="android.broadcast.ACTIVITY"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>

bROADCASTrECEIVER_2
package ex37.BroadcastReceiver_2;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;


public class BroadcastReceiver_2 extends Activity
{
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    // Button元件的事件處理
    public void btn1_Click(View view)
    {
        Intent i = new Intent("android.broadcast.TOAST");
        sendBroadcast(i);
    }

    public void btn2_Click(View view)
    {
        Intent i = new Intent("android.broadcast.NOTIFICATION");
        sendBroadcast(i);
    }

    public void btn3_Click(View view)
    {
        Intent i = new Intent("android.broadcast.ACTIVITY");
        sendBroadcast(i);
    }
}

ActivityBroadcastReceiver
package ex37.BroadcastReceiver_2;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class ActivityBroadcastReceiver extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        Intent i = new Intent(context, TargetActivity.class);
        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
    }
}

NotificationBroadcastReceiver

package ex37.BroadcastReceiver_2;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;


public class NotificationBroadcastReceiver extends BroadcastReceiver
{
    private static final int NOTIF_ID = 1;

    @SuppressWarnings("deprecation")
    @Override
    public void onReceive(Context context, Intent intent)
    {
        NotificationManager notifMgr = (NotificationManager)
                context.getSystemService(Context.NOTIFICATION_SERVICE);
        Notification note = new Notification(R.drawable.icon,
                "收到通知廣播!", System.currentTimeMillis());
        Intent i = new Intent(context, BroadcastReceiver_2.class);
        PendingIntent pi = PendingIntent.getActivity(context, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
        note.setLatestEventInfo(context, "這是廣播送出的通知", null, pi);
        notifMgr.notify(NOTIF_ID, note);
    }
}

TargetActivity

package ex37.BroadcastReceiver_2;

import android.app.Activity;

import android.app.AlertDialog;

import android.os.Bundle;

public class TargetActivity extends Activity

{

    @Override

    protected void onCreate(Bundle savedInstanceState)

    {

        super.onCreate(savedInstanceState);

        new AlertDialog.Builder(this)

                .setMessage("收到活動廣播!")

                .show();

    }

}

ToastBroadcastReceiver

package ex37.BroadcastReceiver_2;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

public class ToastBroadcastReceiver extends BroadcastReceiver

{

    @Override

    public void onReceive(Context context, Intent intent)

    {

        Toast.makeText(context, "收到Toast廣播!",

                Toast.LENGTH_SHORT).show();

    }

}