private static void InfoOnPropertyChanged(object sender, PropertyChangedEventArgs propertyChangedEventArgs)
{
if (propertyChangedEventArgs.PropertyName != "CurrentOrientation")
{
return;
}
switch (Device.Info.CurrentOrientation)
{
case global::Xamarin.Forms.Internals.DeviceOrientation.Landscape:
case global::Xamarin.Forms.Internals.DeviceOrientation.LandscapeRight:
case global::Xamarin.Forms.Internals.DeviceOrientation.LandscapeLeft:
{
DeviceOrientationChanged?.Invoke(
new DeviceOrientationChangedEventHandlerArgs(DeviceOrientation.Landscape));
break;
}
case global::Xamarin.Forms.Internals.DeviceOrientation.PortraitUp:
case global::Xamarin.Forms.Internals.DeviceOrientation.PortraitDown:
case global::Xamarin.Forms.Internals.DeviceOrientation.Portrait:
{
DeviceOrientationChanged?.Invoke(
new DeviceOrientationChangedEventHandlerArgs(DeviceOrientation.Portrait));
break;
}
default:
{
DeviceOrientationChanged?.Invoke(
new DeviceOrientationChangedEventHandlerArgs(DeviceOrientation.Undefined));
break;
}
}
}
private void SystemEvents_DisplaySettingsChanged(Object sender, EventArgs e)
{
if (IsMonitoring)
{
DeviceOrientations previousDeviceOrientation = CurrentDeviceOrientation;
DeviceOrientations currentDeviceOrientation = GetDeviceOrientation(DisplayProperties.CurrentOrientation);
CurrentDeviceOrientation = currentDeviceOrientation;
if (previousDeviceOrientation != currentDeviceOrientation && DeviceOrientationChanged != null)
{
DeviceOrientationChanged.Invoke(this, new DeviceOrientationChangedEventArgs(previousDeviceOrientation, currentDeviceOrientation));
}
}
}
private void Update()
{
UpdateCurrentOrientation();
if (prevOrientation != currOrientation)
{
if (currOrientation == ScreenOrientation.LandscapeLeft ||
currOrientation == ScreenOrientation.LandscapeRight)
{
CurrentGeneralOrientation = GeneralOrientation.Landscape;
GeneralOrientationChanged?.Invoke(CurrentGeneralOrientation);
}
else if (currOrientation == ScreenOrientation.Portrait ||
currOrientation == ScreenOrientation.PortraitUpsideDown)
{
CurrentGeneralOrientation = GeneralOrientation.Portrait;
GeneralOrientationChanged?.Invoke(CurrentGeneralOrientation);
}
DeviceOrientationChanged?.Invoke(currOrientation);
}
prevOrientation = currOrientation;
}
/// <summary>
/// Overrides this method if want to handle behavior when the device orientation is changed.
/// If base.OnRegionFormatChanged() is not called, the event 'RegionFormatChanged' will not be emitted.
/// </summary>
/// <param name="e">The device orientation changed event argument</param>
/// <since_tizen> 3 </since_tizen>
protected virtual void OnDeviceOrientationChanged(DeviceOrientationEventArgs e)
{
DeviceOrientationChanged?.Invoke(this, e);
}
internal void OnDeviceOrientationChangedCallback(int orientation)
{
DeviceOrientationChanged?.Invoke(this, new DeviceOrientationEventArgs((DeviceOrientation)orientation));
}