Question

我在Activity（ActionBarActivity）

中创建了一个BroadcastReceiver 像这样

public class MyTabListner extends ActionBarActivity {
.
.
.

    public class AppManagerBroadcast extends BroadcastReceiver {

                @Override
                public void onReceive(Context context, Intent intent) {
                    boolean applicationStatus = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false);
                    String toastMessage = null;
                    if(intent.getAction().equals("android.intent.action.PACKAGE_INSTALL")){
                        toastMessage = "PACKAGE_INSTALL: "+  intent.getData().toString();


                    }else
                    if(intent.getAction().equals("android.intent.action.PACKAGE_REPLACED")){
                        toastMessage = "PACKAGE_REPLACED: "+  intent.getData().toString() ;

                    }else
                    if(intent.getAction().equals("android.intent.action.PACKAGE_REMOVED")){
                        toastMessage = "PACKAGE_REMOVED: "+  intent.getData().toString();

                    }
                    //Display Toast Message
                    if(toastMessage != null){
                        Toast.makeText(context, toastMessage, Toast.LENGTH_LONG).show();
                    }
                }



            }
.
.
.
}

我在manifest.xml中注册像这样

 <receiver
            android:name="com.example.activity.MyTabListner$AppManagerBroadcast"
            android:enabled="true" >
            <intent-filter android:priority="1" >
                <action android:name="android.intent.action.PACKAGE_INSTALL" />
                <action android:name="android.intent.action.PACKAGE_REPLACED" />
                <action android:name="android.intent.action.PACKAGE_REMOVED" />
                <data android:scheme="package" />
            </intent-filter>
        </receiver>

但我以这种方式得到了例外。例外是。

09-11 17:45:46.434: E/AndroidRuntime(23502): FATAL EXCEPTION: main
09-11 17:45:46.434: E/AndroidRuntime(23502): java.lang.RuntimeException: Unable to instantiate receiver com.example.activity.MyTabListner$AppManagerBroadcast: java.lang.InstantiationException: can't instantiate class com.example.activity.MyTabListner$AppManagerBroadcast; no empty constructor

09-11 17:45:46.434: E/AndroidRuntime(23502): Caused by: java.lang.InstantiationException: can't instantiate class com.example.activity.MyTabListner$AppManagerBroadcast; no empty constructor

当我创建了侧面活动然后我成功完全运行我的应用程序但是我想在活动 非活动中使用此广播接收器。如何避免这种异常

Answer 1

内部类必须是静态类。

更改

public class AppManagerBroadcast extends BroadcastReceiver

到

public static class AppManagerBroadcast extends BroadcastReceiver

Answer 2

在我看来你必须将你的内部类声明为静态。目前，内部类必须与外部类的实例一起使用，这可能不是您想要的。

如何处理Activity里面创建的广播？

2 个答案: