欢迎大家在这里学习android接收系统自带的广播!下面是我们给大家整理出来的精彩内容。希望大家在这里学习!
1、建立一个项目Lesson21_BroadcastReceiver,拷贝一首音乐进res/raw目录
2、建立HelloBroadcastReceiver.java 内容如下:
package android.basic.lesson21;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.util.Log;
public class HelloBroadReciever extends BroadcastReceiver {
//如果接收的事件发生
@Override
public void onReceive(Context context, Intent intent) {
//则输出日志
Log.e("HelloBroadReciever", "BOOT_COMPLETED!!!!!!!!!!!!!!!!!!!!!!!!!");
Log.e("HelloBroadReciever", ""+intent.getAction());
//则播放一首音乐
MediaPlayer.create(context, R.raw.babayetu).start();
}
}
- package android.basic.lesson21;
-
- import android.content.BroadcastReceiver;
- import android.content.Context;
- import android.content.Intent;
- import android.media.MediaPlayer;
- import android.util.Log;
3、在AndroidManifest.xml中注册此Receiver
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionname="1.0" android:versioncode="1" package="android.basic.lesson21">
- <application android:icon="@drawable/icon" android:label="@string/app_name">
- <activity android:label="@string/app_name" android:name=".MainBroadcastReceiver">
- <intent -filter="">
- <action android:name="android.intent.action.MAIN">
- <category android:name="android.intent.category.LAUNCHER">
- </category></action></intent>
- </activity>
- <!-- 定义Broadcast Receiver 指定监听的Action -->
- <receiver android:name="HelloBroadReciever">
- <intent -filter="">
- <action android:name="android.intent.action.BOOT_COMPLETED">
- </action></intent>
- </receiver>
- </application></manifest>
好了,android接收系统自带的广播精彩内容就给大家介绍到这里了。希望大家继续关注我们的网站!
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