启用和禁用的广播接收器 [英] Enable and disable a Broadcast Receiver

问题描述

我尝试启用和使用该PackageManager方法禁用广播接收器：

  setComponentEnabledSetting（组件名，
        PackageManager.COMPONENT_ENABLED_STATE_DISABLED，
        PackageManager.DONT_KILL_APP）;
 

广播接收器被登记在清单中。接收器工作正常，但是当我尝试禁用它，它仍然会接收广播消息。 当我禁用清单中的接收器通过安卓启用=FALSE，接收方没有收到任何东西，但我无法启用它

我从服务中调​​用该方法。

  PackageManager PM = getApplicationContext（）getPackageManager（）。
    组件名组件名=新的组件名（com.app
             .broadcast_receivers.OnNetworkChangedReceiver）;
    pm.setComponentEnabledSetting（组件名，
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED，
            PackageManager.DONT_KILL_APP）;
 

Android清单：

 ＆LT;接收机器人：名称=。broadcast_receivers.OnNetworkChangedReceiver
                机器人：启用=真正的＆GT;
            ＆LT;意向滤光器＆gt;
                    ＆lt;作用机器人：名称=android.net.conn.CONNECTIVITY_CHANGE/＆GT;
            ＆所述; /意图滤光器＆gt;
    ＆LT; /接收器＆GT;
 

该接收器

  OnNetworkChangedReceiver延伸的BroadcastReceiver {public类
私有静态最后字符串变量=OnNetworkChangedReceiver;

@覆盖
公共无效的onReceive（上下文的背景下，意图意图）{
    Log.d（TAG，在OnNetworkChanged）;
    }
}
 

我还调用的方法从活动里昨天。我认为它的工作，但现在没有工作了。 难道说有时会有很大的延迟的意图（android.net.conn.CONNECTIVITY_CHANGE），我misinter昨天PTED为禁用接收器$ P $？

时的PackageManager的方法正确的方向还是有一个基本的错误的想法？

非常感谢， 斯文

解决方案

那么，你基本上似乎确定。我在我的项目之一的：

 布尔启用= prefs.getBoolean（键，FALSE）;
INT标志=（启用？
            PackageManager.COMPONENT_ENABLED_STATE_ENABLED：
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED）;
组件名组件=新的组件名（编辑preferences.this，OnBootReceiver.class）;

getPackageManager（）
    .setComponentEnabledSetting（组件，标志，
                                PackageManager.DONT_KILL_APP）;
 

我用这个来禁用 BOOT_COMPLETED 接收器时，我没有这方面的需要安排任何活动的警报。

我的猜测是，你的组件名设置不正确（例如，你的领导。）。试试，我使用的构造，这需要一个上下文和类作为参数。<​​/ P>

I try to enable and disable a broadcast receiver by using this PackageManager method:

setComponentEnabledSetting(componentName,
        PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
        PackageManager.DONT_KILL_APP);

The broadcast receiver is registered in the manifest. The receiver works fine but when i try to disable it, it still receives the broadcast messages. When i disable the receiver in the manifest by "android:enabled="false"", the receiver does not receive anything but I can not enable it.

I call the method from inside a service.

    PackageManager pm  = getApplicationContext().getPackageManager();
    ComponentName componentName = new ComponentName("com.app",
             ".broadcast_receivers.OnNetworkChangedReceiver");
    pm.setComponentEnabledSetting(componentName,
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
            PackageManager.DONT_KILL_APP);

Android manifest:

    <receiver android:name=".broadcast_receivers.OnNetworkChangedReceiver"
                android:enabled="true">
            <intent-filter>
                    <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
            </intent-filter>
    </receiver>

The Receiver

public class OnNetworkChangedReceiver extends BroadcastReceiver {
private static final String TAG = "OnNetworkChangedReceiver";

@Override
public void onReceive(Context context, Intent intent) {
    Log.d(TAG, "in OnNetworkChanged");
    }
}

I also called the method from inside an Activity yesterday. I thought it worked but today nothing works anymore. Could it be that there is sometimes a big delay in the intent (android.net.conn.CONNECTIVITY_CHANGE) that I misinterpreted yesterday as disabling the receiver?

Is the approach with the PackageManager the right direction or is there a basic error in the idea?

Thanks a lot, Sven

解决方案

Well, what you basically have seems OK. I have the following code in one of my projects:

boolean enabled=prefs.getBoolean(key, false);
int flag=(enabled ?
            PackageManager.COMPONENT_ENABLED_STATE_ENABLED :
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED);
ComponentName component=new ComponentName(EditPreferences.this, OnBootReceiver.class);

getPackageManager()
    .setComponentEnabledSetting(component, flag,
                                PackageManager.DONT_KILL_APP);

I use this to disable a BOOT_COMPLETED receiver when I don't have any active alarms that need to be scheduled.

My guess is that your ComponentName is not set up properly (e.g., your leading .). Try the constructor that I am using, that takes a Context and a Class as parameters.

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