/// <summary>
/// Returns display orientation given its display number.
/// </summary>
/// <param name="displayNumber">Display number.</param>
/// <returns>Display orientation, or default (portrait) if displayNumber does not match any display.</returns>
public DisplayOrientation GetOrientation(int displayNumber)
{
DisplayInfo di = GetDisplayInfo(displayNumber);
if (di != null)
{
return(di.DisplayOrientation);
}
return(DisplayOrientation.Portrait);
}
/// <summary>
/// Get Display Information for the given display number.
/// </summary>
/// <param name="displayNumber">
/// A <see cref="System.Int32"/>
/// </param>
/// <returns>
/// A <see cref="DisplayInfo"/>
/// </returns>
public override DisplayInfo GetDisplayInfo(int displayNumber)
{
DisplayInfo displayInfo = null;
if(displayNumber<=GetDisplays()) {
// Display number is a valid number.
displayInfo = new DisplayInfo();
displayInfo.DisplayNumber = displayNumber;
displayInfo.DisplayBitDepth = DisplayBitDepth.Bpp24; // default bit depth for iphone/ipad.
displayInfo.DisplayType = DisplayType.Primary;
// Default is MainScreen
UIScreen screen = UIScreen.MainScreen;
// display orientation is by default the device orientation.
displayInfo.DisplayOrientation = GetDeviceOrientation();
if(GetOSHardwareInfo().Version.IndexOf("iPad")>=0) {
UIScreen[] screens = UIScreen.Screens;
screen = screens[displayNumber-1];
// TODO how to get orientation from external display, if case.
// DisplayOrientation ??
// DisplayType.External ??
}
displayInfo.DisplayY = (int) screen.Bounds.Height;
displayInfo.DisplayX = (int) screen.Bounds.Width;
if(displayInfo.DisplayOrientation==DisplayOrientation.Landscape) {
displayInfo.DisplayY = (int) screen.Bounds.Width;
displayInfo.DisplayX = (int) screen.Bounds.Height;
}
}
return displayInfo;
}
/// <summary>
/// Provides information of screens connected to the device. Display 1 is the primary.
/// </summary>
/// <returns>Display info array.</returns>
private DisplayInfo[] GetDisplayInfoList()
{
List<DisplayInfo> list = new List<DisplayInfo>();
int i = 1;
foreach (var screen in Screen.AllScreens)
{
DisplayInfo di = new DisplayInfo();
di.DisplayNumber = i;
di.DisplayX = screen.WorkingArea.Width;
di.DisplayY = screen.WorkingArea.Height;
if (screen.Primary)
{
di.DisplayType = DisplayType.Primary;
}
else
{
di.DisplayType = DisplayType.External;
}
switch(screen.BitsPerPixel) {
case -1:
di.DisplayBitDepth = DisplayBitDepth.Unknown;
break;
case 32:
di.DisplayBitDepth = DisplayBitDepth.Bpp32;
break;
case 24:
di.DisplayBitDepth = DisplayBitDepth.Bpp24;
break;
case 16:
di.DisplayBitDepth = DisplayBitDepth.Bpp16;
break;
default:
di.DisplayBitDepth = DisplayBitDepth.Bpp8;
break;
}
//Compare height and width of screen and act accordingly.
if (di.DisplayY > di.DisplayX)
{
di.DisplayOrientation = DisplayOrientation.Portrait;
}
else
{
di.DisplayOrientation = DisplayOrientation.Landscape;
}
list.Add(di);
i++;
}
return list.ToArray();
}
