首先是從BroadcastReceiver派生出一個新類,用來監聽系統啟動後發出的廣播消息android.intent.action.BOOT_COMPLETED  

  • BootReceiver.java:
  • import android.content.BroadcastReceiver;
  • import android.content.Context;
  • import android.content.Intent;
  • import android.util.Log;
  • publicclass BootReceiver extends BroadcastReceiver {
  • publicvoid onReceive(Context context, Intent intent) {
  • if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED"))
  • {
  • Log.d("BootReceiver", "system boot completed");
  • Intent newIntent = new Intent(context, FirstRun.class);
  • newIntent.setAction("android.intent.action.MAIN"); //MyActivity action defined in AndroidManifest.xml
  • newIntent.addCategory("android.intent.category.LAUNCHER");//MyActivity category defined in AndroidManifest.xml
  • newIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //If activity is not launched in Activity environment, this flag is mandatory to set
  • context.startActivity(newIntent);
  • //if you want to start a service, follow below method:
  • /*******************************************************
  • Intent service = new Intent(yourService.ACTION_START);
  • service.setClass(context, yourService.class);
  • context.startService(service);
  • ******************************************************/
  • }
  • }
  • }

接下来这个类就是监听到系统启动完毕后,我们要运行的activity.

  • FirstRun.java
  • import android.app.Activity;
  • import android.os.Bundle;
  • publicclass FirstRun extends Activity {
  • publicvoid onCreate(Bundle savedInstanceState) {
  • super.onCreate(savedInstanceState);
  • setContentView(R.layout.main);
  • }
  • }

 

当然,我们还要改配置文件,需要注意的是,在manifest.xml中需要加上

  • <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
  • Manifest.xml
  • <?xml version="1.0" encoding="utf-8"?>
  • <manifest xmlns:android="http://schemas.android.com/apk/res/android"
  • package="com.service.prac"
  • android:versionCode="1"
  • android:versionName="1.0">
  • <application android:icon="@drawable/icon" android:label="@string/app_name">
  • <receiver android:name=".BootReceiver"
  • android:label="@string/app_name">
  • <intent-filter>
  • <action android:name="android.intent.action.BOOT_COMPLETED"/>
  • <category android:name="android.intent.category.LAUNCHER" />
  • </intent-filter>
  • </receiver>
  • <activity android:name=".FirstRun">
  • <intent-filter>
  • <action android:name="android.intent.action.MAIN" />
  • <category android:name="android.intent.category.LAUNCHER" />
  • </intent-filter>
  • </activity>
  • </application>
  • <uses-sdk android:minSdkVersion="3" />
  • <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
  • </manifest>

 

 文章出處  http://www.ziyouku.com/archives/android-start-at-boot-activity-service.html

 

 

 

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