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AndroidManifest.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：
- <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：
- 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）
- 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
- }
- }
- }