android怎么实现开机自动启动Service或app

android如何实现开机自动启动Service或app??????????????? /intent-filter????????????? /receiver??

android如何实现开机自动启动Service或app
??????????????? </intent-filter>??
??????????? </receiver>??
第三步:添加权限 <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />?