1.要做的就是监听系统发出的broadcast

public class FlorenceText extends BroadcastReceiver{

public void onReceive(Context context, Intent intent) {
if(Intent.ACTION_BOOT_COMPLETED.equals(intent.getAction())){
start(context);

}

}

}

2.在AndroidMenifest.xml里还要将receiver加上, 并写明程序的入口就是FlorenceTest

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<receiver android:name=".main.FlorenceTest"
android:exported="true"
android:process=":remote">

<intent-filter >
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.HOME"/>
</intent-filter>
</receiver>

</application>

这样，程序就可以在开机时自动运行了