1. 首先开机启动 后系统会发出一个Standard Broadcast Action,名字叫android.intent.action.BOOT_COMPLETED ,这个Action只会发出一次。 2. 构造一个IntentReceiver 类,重构 其抽象方法onReceiveIntent(Context context, Intent intent), 在其中启动你想要启动的Service。 3. 在Android Manifest.xml 中,首先加入<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission> 来获得BOOT_COMPLETED的使用许可,然后注册前面重构的IntentReceiver类,在其<intent-filter> 中加入<action android:name="android.intent.action.BOOT_COMPLETED" /> ,以使其能捕捉到这个Action。 一个例子 xml:
Java代码 <uses-permission android:name= "android.permission.RECEIVE_BOOT_COMPLETED" ></uses-permission> <receiver android:name= ".OlympicsReceiver" 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> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission> <receiver android:name=".OlympicsReceiver" 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>java :
Java代码 public class OlympicsReceiver extends IntentReceiver { /*要接收的intent源*/ static final String ACTION = "android.intent.action.BOOT_COMPLETED" ; public void onReceiveIntent(Context context, Intent intent) { if (intent.getAction().equals(ACTION)) { context.startService( new Intent(context, OlympicsService. class ), null ); //启动倒计时服务 Toast.makeText(context, "OlympicsReminder service has started!" , Toast.LENGTH_LONG).show(); } } } public class OlympicsReceiver extends IntentReceiver { /*要接收的intent源*/ static final String ACTION = "android.intent.action.BOOT_COMPLETED"; public void onReceiveIntent(Context context, Intent intent) { if (intent.getAction().equals(ACTION)) { context.startService(new Intent(context, OlympicsService.class), null);//启动倒计时服务 Toast.makeText(context, "OlympicsReminder service has started!", Toast.LENGTH_LONG).show(); } } }注意:现在的IntentReceiver已经变为BroadcastReceiver,OnReceiveIntent为onReceive。所以java这边的代码为:
(也可以实现应用程序开机自动启动) Java代码 public class OlympicsReceiver extends BroadcastReceiver { /*要接收的intent源*/ static final String ACTION = "android.intent.action.BOOT_COMPLETED" ; public void onReceive(Context context, Intent intent) { if (intent.getAction().equals(ACTION)) { context.startService( new Intent(context, OlympicsService. class ), null ); //启动倒计时服务 Toast.makeText(context, "OlympicsReminder service has started!" , Toast.LENGTH_LONG).show(); //这边可以添加开机自动启动的应用程序代码 } } }