Call this method anywhere, anytime (tested in mobile/desktop App):
public static Size GetCurrentDisplaySize() {
var displayInformation = DisplayInformation.GetForCurrentView();
TypeInfo t = typeof(DisplayInformation).GetTypeInfo();
var props = t.DeclaredProperties.Where(x => x.Name.StartsWith("Screen") && x.Name.EndsWith("InRawPixels")).ToArray();
var w = props.Where(x => x.Name.Contains("Width")).First().GetValue(displayInformation);
var h = props.Where(x => x.Name.Contains("Height")).First().GetValue(displayInformation);
var size = new Size(System.Convert.ToDouble(w), System.Convert.ToDouble(h));
switch (displayInformation.CurrentOrientation) {
case DisplayOrientations.Landscape:
case DisplayOrientations.LandscapeFlipped:
size = new Size(Math.Max(size.Width, size.Height), Math.Min(size.Width, size.Height));
break;
case DisplayOrientations.Portrait:
case DisplayOrientations.PortraitFlipped:
size = new Size(Math.Min(size.Width, size.Height), Math.Max(size.Width, size.Height));
break;
}
return size;
}