The display of my Android device gets black for a short time before the video gets displayed

Question

The display of my Android device gets black for a short time before the video gets displayed. I use this code to play a video and I don´t know why the display gets completely black for 1-2 seconds before the video gets played. It´s not bad that the display gets black for a short time but I want to know if it would be possible to avoid the black screen before the video gets displayed.

Why does the display gets black for a short time before the video gets displayed?

Acitivity1.cs:

_game = new Game1(this, this.Window);

Game1.cs:

 private Activity1 activity1;    
 private Android.Views.Window window;     

public async void ShowTheVideo()
   {
       VideoDialog customDialog = new VideoDialog(activity1);
       customDialog.SetCancelable(false);
       customDialog.Show();
       await CrossMediaManager.Current.Play("https://videos.pexels.com/video-files/7356431/7356431-hd_1280_720_25fps.mp4");
     
       CrossMediaManager.Current.MediaItemFinished += (s, e) =>
       {
           customDialog.Cancel();
       };
   }

VideoDialog.cs:

using Android.App;
using Android.Views;
using Android.Content;
using Android.Graphics.Drawables;
using Android.OS;
using AndroidX.Core.View;

namespace MyAndroidProject
{
    public class VideoDialog : Dialog
    {
        public VideoDialog(Context context) : base(context)
        {
        }
        protected override void OnCreate(Bundle? savedInstanceState)
        {
            base.OnCreate(savedInstanceState);
         
            Window.RequestFeature(WindowFeatures.NoTitle);
            WindowCompat.SetDecorFitsSystemWindows(Window, false);
            WindowInsetsControllerCompat windowInsetsController = new WindowInsetsControllerCompat(Window, Window.DecorView);
            windowInsetsController.Hide(WindowInsetsCompat.Type.NavigationBars());
            windowInsetsController.SystemBarsBehavior = WindowInsetsControllerCompat.BehaviorShowTransientBarsBySwipe;
            View view = LayoutInflater.From(Context).Inflate(Resource.Layout.Activity_main, null);
            SetContentView(view);
            Window.SetBackgroundDrawable(new ColorDrawable());
            Window.SetLayout(WindowManagerLayoutParams.MatchParent, WindowManagerLayoutParams.MatchParent);
        }
    }
}

Answer 1

Hello,

Why does the display gets black for a short time before the video gets displayed?

This is because after the video playback control is loaded, your program needs to read the video file as a file stream and then parse it before it can be displayed on the screen. This process takes up the program's computing resources, so a brief black screen will appear.

It´s not bad that the display gets black for a short time but I want to know if it would be possible to avoid the black screen before the video gets displayed.

Since the black screen is caused by loading, and this player is a third-party plug-in, it is recommended that you post this question to the official repository of the plug-in to ask if there is a way to preload to avoid the black screen.

Best Regards,

Alec Liu.

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