如何在 Xamarin 中获取 ActivityManager 的实例？

Question

为了检查应用程序是在前台还是在后台，我正在尝试按照以下方式访问 ActivityManager。

ActivityManager activityManager = GetSystemService(Context.ACTIVITY_SERVICE) as ActivityManager;
            List<RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
            foreach(RunningAppProcessInfo appProcess in appProcesses){
                if(appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND){
                    Log.i("Foreground App", appProcess.processName);
                    //SetNotification ();
                }
            }

但是我在第一行收到 "Android.Content.Context does not contain a definition for ACTIVITY_SERVICE" 的编译错误。

如何在 Xamarin 中访问 ActivityManager？

Answer 1

只需更改

ActivityManager activityManager = GetSystemService(Context.ACTIVITY_SERVICE) as ActivityManager;

至

ActivityManager activityManager = GetSystemService(Context.ActivityService) as ActivityManager;

获取 ActivityManager 的实例。

如何在 Xamarin 中获取 ActivityManager 的实例？

How to get instance of ActivityManager in Xamarin?

android

xamarin

xamarin.android