如果没有活动intent-filter,则不会收到android BOOT_COMPLETED

Question

我设置了一个简单的应用程序.我不想把它隐藏在抽屉里,我想添加一个Boot Receiver来启动服务.

为了隐藏应用程序,我读到我必须从清单中删除它

<intent-filter>
    <action android:name="android.intent.action.MAIN" />
    <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

但当我删除它时,启动接收器不再工作.

我在manifest标签下添加了权限

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

我的接收器正在申请中

<receiver android:name="com.example.receiver.BootReceiver" >
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

在接收器代码中,只有一个Toast

public class BootReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Boot Received", Toast.LENGTH_SHORT).show();
    }
}

为什么我不能从启动器设置启动接收器和隐藏的应用程序？

谢谢

Answer 1

从Android 3.1开始,所有应用程序在安装时都处于" 停止 "状态.(这与用户从"设置"应用程序强制停止应用程序后应用程序结束的状态相同.)

While in "stopped" state, the application will not run for any reason, except by a manual launch of an activity. (Meaning no BroadcastReceviers(ACTION_PACKAGE_INSTALLED, BOOT_COMPLETED etc.) will be invoked, regardless of the event for which they have registered, until the user runs the app manually.)

This is an anti-malware move by Google. Google has advocated that users should launch an activity from the launcher first, before that application can go do much. Preventing BOOT_COMPLETED from being delivered until the activity is launched is a logical consequence of the that argument.

有关此内容的更多详细信息:http:
//developer.android.com/about/versions/android-3.1.html#launchcontrols
http://commonsware.com/blog/2011/07/05/boot-completed-regression.html
http ://devmaze.wordpress.com/2011/12/05/activating-applications/