1.启用Activity的硬件加速
[Activity(Label = "MyApp", HardwareAccelerated =true, Icon = "@drawable/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
2.设置MediaPlaybackRequiresUserGesture为false
Control.Settings.AllowUniversalAccessFromFileURLs = true;
Control.Settings.BuiltInZoomControls = false;
Control.Settings.LoadsImagesAutomatically = true;
Control.Settings.JavaScriptCanOpenWindowsAutomatically = false;
Control.Settings.SetSupportZoom(false);
Control.Settings.JavaScriptCanOpenWindowsAutomatically = false;
Control.Settings.JavaScriptEnabled = true;
Control.Settings.MediaPlaybackRequiresUserGesture = false;
Control.Settings.DefaultTextEncodingName = "utf-8";
Control.Settings.DisplayZoomControls = false;
