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Android DeviceAdminReceiver中的空构造函数异常_Android_Constructor_Broadcastreceiver_Super_Device Admin - Fatal编程技术网

Android DeviceAdminReceiver中的空构造函数异常

Android DeviceAdminReceiver中的空构造函数异常,android,constructor,broadcastreceiver,super,device-admin,Android,Constructor,Broadcastreceiver,Super,Device Admin,我已经尝试调用DeviceAdminReceiver类的默认构造函数,但没有成功。删除构造函数也会出现相同的错误。 DeviceAdminSampleReceiver类定义- E/AndroidRuntime(27856): java.lang.RuntimeException: Unable to instantiate receiver com.inc.statusbar.Statusbar$DeviceAdminSampleReceiver: java.lang.Instantiation

我已经尝试调用
DeviceAdminReceiver
类的默认构造函数,但没有成功。删除构造函数也会出现相同的错误。
DeviceAdminSampleReceiver
类定义-

E/AndroidRuntime(27856): java.lang.RuntimeException: Unable to instantiate receiver com.inc.statusbar.Statusbar$DeviceAdminSampleReceiver: java.lang.InstantiationException: can't instantiate class com.inc.statusbar.Statusbar$DeviceAdminSampleReceiver; no empty constructor
public class DeviceAdminSampleReceiver extends DeviceAdminReceiver
{

    public DeviceAdminSampleReceiver()
    {
        super();    
    }

    @Override
    public void onEnabled(Context context, Intent intent) {
        super.onEnabled(context, intent);
    }

    @Override
    public CharSequence onDisableRequested(Context context, Intent intent) {
        super.onDisabled(context, intent);
        return "admin_receiver_status_disable_warning";
    }

    @Override
    public void onDisabled(Context context, Intent intent) {
        super.onDisabled(context, intent);
    }

}