Getting the list of running processes in Android OS using Net Maui

Question

I'm trying the access the list of Processes that are running on Android OS ( I'm talking about API 27 ), using NET MAUI (NET 6) but now the list returns null. I don't know how am I supposed to access this.

I tried on Xamarin using the below method to get the list of running processes and worked as intended.

ActivityManager activityManager = mauicontext.GetSystemService(Context.ActivityService) as ActivityManager;
ActivityManager.MemoryInfo memoryInfo = new ActivityManager.MemoryInfo();
List<ActivityManager.RunningAppProcessInfo> runningAppProcesses = activityManager.RunningAppProcesses as List<ActivityManager.RunningAppProcessInfo>;

Now using Net Maui (Net.6) the same method the runningAppProcesses List is returning null.

I have tested your code in the xamarin and runningAppProcesses was null. But the activityManager.RunningAppProcesses's count is 1. — Liyun Zhang - MSFT, Feb 03 '23 at 07:37
Do you have any idea how to do it on MAUI, or Xamarin for that matter ? — aquari93, Feb 06 '23 at 06:10

score 0 · Accepted Answer · answered Feb 06 '23 at 08:14

At first, did you add the following permission in the AndroidManifest.xml?

mlns:tools="http://schemas.android.com/tools"

<uses-permission android:name="android.permission.REAL_GET_TASKS"
    tools:ignore="ProtectedPermissions" />

In addition, since the Android 7.0, the activityManager.RunningAppProcesses can only get your own app. But you can use the following code to try to get the current runing app in the Android 8.1.

 PackageManager localPackageManager = this.PackageManager;
 var localList = localPackageManager.GetInstalledPackages(0).ToList();
 var app = new Java.Util.ArrayList();
 for (int i = 0; i < localList.Count; i++)
{
     PackageInfo localPackageInfo1 = (PackageInfo)localList[i];
     String str1 = localPackageInfo1.PackageName.Split(":")[0];
     if (((ApplicationInfoFlags.System & localPackageInfo1.ApplicationInfo.Flags) == 0)
      && ((ApplicationInfoFlags.UpdatedSystemApp & localPackageInfo1.ApplicationInfo.Flags) == 0)
      && ((ApplicationInfoFlags.Stopped & localPackageInfo1.ApplicationInfo.Flags) == 0))
       {
          app.Add(str1);
       }
 }

Thanks, works as intended on MAUI in getting the list for all the processes. You saved me a lot of headache. — aquari93, Feb 06 '23 at 13:40

Getting the list of running processes in Android OS using Net Maui

1 Answers1