Play Video In Android Default Media Player

Create the Platform-specific Service and execute the following code.

public void PlayVideoFromLocalStorage(string filePath)
{
    try
    {
        var videoFile = new Java.IO.File(Java.Net.URI.Create($"file://{filePath}"));
        Android.Net.Uri fileUri = FileProvider.GetUriForFile(Android.App.Application.Context, $"{Android.App.Application.Context.PackageName}.fileprovider", videoFile);
        Intent intent = new Intent();
        intent.SetAction(Intent.ActionView);
        intent.AddFlags(ActivityFlags.NewTask);
        intent.AddFlags(ActivityFlags.GrantReadUriPermission);
        intent.SetDataAndType(fileUri, "video/*");
        Android.App.Application.Context.ApplicationContext.StartActivity(intent);
    }
    catch(Exception ex)
    { 
 
    }
}