/// <summary>
/// check for screen orientation changes
/// </summary>
public void Update()
{
if (Application.platform == RuntimePlatform.Android)
{
if (SurfaceUtilities.HasSurfaceBeenRecreated())
{
InitializeSurface();
}
else
{
// if Unity reports that the orientation has changed, reset the member variable
// - this will trigger a check in Java for a few frames...
if (Screen.orientation != mScreenOrientation)
{
ResetUnityScreenOrientation();
}
CheckOrientation();
if (mScreenWidth != Screen.width || mScreenHeight != Screen.height)
{
mScreenWidth = Screen.width;
mScreenHeight = Screen.height;
SurfaceUtilities.OnSurfaceChanged(mScreenWidth, mScreenHeight);
}
}
mFramesSinceLastOrientationReset++;
}
}
public DebugBitmapDialog(string title, CanvasBitmap bitmap)
{
this.InitializeComponent();
Title = title;
RootGrid.Width = bitmap.Size.Width;
RootGrid.Height = bitmap.Size.Height;
var compositor = Window.Current.Compositor;
var visual = compositor.CreateSpriteVisual();
visual.RelativeSizeAdjustment = Vector2.One;
var brush = compositor.CreateSurfaceBrush();
brush.Stretch = CompositionStretch.Uniform;
brush.BitmapInterpolationMode = CompositionBitmapInterpolationMode.NearestNeighbor;
brush.HorizontalAlignmentRatio = 0.5f;
brush.VerticalAlignmentRatio = 0.5f;
visual.Brush = brush;
var surfaceFactory = SurfaceFactory.GetSharedSurfaceFactoryForCompositor(compositor);
_surface = surfaceFactory.CreateSurface(bitmap.Size);
SurfaceUtilities.FillSurfaceWithDirect3DSurface(surfaceFactory, _surface, bitmap);
brush.Surface = _surface;
_bitmap = bitmap;
ElementCompositionPreview.SetElementChildVisual(RootGrid, visual);
}
private void InitializeSurface()
{
SurfaceUtilities.OnSurfaceCreated();
AndroidJavaClass javaUnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
mCurrentActivity = javaUnityPlayer.GetStatic <AndroidJavaObject>("currentActivity");
if (mCurrentActivity != null)
{
mJavaOrientationUtility = new AndroidJavaClass("com.qualcomm.QCARUnityPlayer.OrientationUtility");
}
ResetUnityScreenOrientation();
CheckOrientation();
mScreenWidth = Screen.width;
mScreenHeight = Screen.height;
SurfaceUtilities.OnSurfaceChanged(mScreenWidth, mScreenHeight);
}
private void CheckOrientation()
{
// check for the activity orientation for a few frames after it has changed in Unity
if (mFramesSinceLastOrientationReset < NUM_FRAMES_TO_QUERY_ORIENTATION)
{
// mScreenOrientation remains at the value reported by Unity even when the acitivity reports a different one
// otherwise the check for orientation changes will return true every frame.
int correctScreenOrientation = (int)mScreenOrientation;
if (mCurrentActivity != null)
{
// The orientation reported by Unity is not reliable on some devices (e.g. landscape right on the Nexus 10)
// We query the correct orientation from the activity to make sure.
int activityOrientation = mJavaOrientationUtility.CallStatic <int>("getSurfaceOrientation", mCurrentActivity);
if (activityOrientation != 0)
{
correctScreenOrientation = activityOrientation;
}
}
SurfaceUtilities.SetSurfaceOrientation(correctScreenOrientation);
}
}
