应用程序关闭后 PackageBroadcastReceiver 不工作

Question

我有一个 PackageBroadcastReceiver 运行当应用程序处于后台时没问题。我需要它在关闭时继续收听包 added/removed。但是，它不是。

有什么方法可以用 BroadcastReceiver 做到这一点，还是我应该转向服务？

这里是代码：

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

<uses-sdk
    android:minSdkVersion="11"
    android:targetSdkVersion="23" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.cresan.antivirus.StockingActivity"
        android:label="@string/app_name"
        android:screenOrientation="portrait">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

    <receiver android:name="com.tech.applications.coretools.advertising.PackageBroadcastReceiver">
        <intent-filter>
            <action android:name="android.intent.action.PACKAGE_INSTALL" />
            <action android:name="android.intent.action.PACKAGE_ADDED" />
            <data android:scheme="package"/>
        </intent-filter>
    </receiver>
</application>

还有我的 PackageBroadcastReceiver：

public class PackageBroadcastReceiver extends BroadcastReceiver 
{
    static IPackageChangesListener _listener;

    static public void setPackageBroadcastListener(IPackageChangesListener listener)
    {
        _listener=listener;
    }

    @Override
    public void onReceive(Context ctx, Intent intent) 
    {
         if(_listener!=null && Intent.ACTION_PACKAGE_ADDED.equals(intent.getAction()))
             _listener.OnPackageAdded(intent);
        if(_listener!=null && Intent.ACTION_PACKAGE_REMOVED.equals(intent.getAction()))
             _listener.OnPackageRemoved(intent);

    }
}

干杯。

Answer 1

您肯定需要实施后台服务才能执行此操作。参见 the developer guide.

然后您可以通过编程方式在您的服务中注册 BroadcastReceiver：

private PackageBroadcastReceiver packageBroadcastReceiver;

@Override
public void onCreate() {
    super.onCreate();
    this.packageBroadcastReceiver = new PackageBroadcastReceiver();
    this.packageBroadcastReceiver.setPackageBroadcastListener(new IPackageChangesListener() {

        public void OnPackageAdded(Intent i) {
            //do something here- probably start an activity
        }
        ...

    });

    IntentFilter packageFilter = new IntentFilter("android.intent.action.PACKAGE_ADDED");
    packageFilter.addAction("android.intent.action.PACKAGE_INSTALL");
    packageFilter.addDataScheme("package");
    this.registerReceiver(this.packageBroadcastReceiver, packageFilter);
}

@Override
public void onDestroy(){
    super.onDestroy();
    this.unregisterReceiver(this.packageBroadcastReceiver);
}

Answer 2

尝试在服务中注册广播接收器。 activity 销毁后，receiver 将被销毁，所以你不会收到广播事件。

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