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[Android] make NavigationBar support Transluscent status #1116

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[Android] make NavigationBar support Transluscent status #1116

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23 changes: 22 additions & 1 deletion Xamarin.Forms.Platform.Android/AppCompat/NavigationPageRenderer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ public class NavigationPageRenderer : VisualElementRenderer<NavigationPage>, IMa
ActionBarDrawerToggle _drawerToggle;
FragmentManager _fragmentManager;
int _lastActionBarHeight = -1;
int _statusbarHeight;
AToolbar _toolbar;
ToolbarTracker _toolbarTracker;
DrawerMultiplexedListener _drawerListener;
Expand Down Expand Up @@ -387,8 +388,28 @@ int ActionBarHeight()
if (actionBarHeight <= 0)
return Device.Info.CurrentOrientation.IsPortrait() ? (int)Context.ToPixels(56) : (int)Context.ToPixels(48);

if (((Activity)Context).Window.Attributes.Flags.HasFlag(WindowManagerFlags.TranslucentStatus))
{
if (_toolbar.PaddingTop == 0)
_toolbar.SetPadding(0, GetStatusBarHeight(), 0, 0);

return actionBarHeight + GetStatusBarHeight();
}

return actionBarHeight;
}

int GetStatusBarHeight()
{
if (_statusbarHeight > 0)
return _statusbarHeight;

int resourceId = Resources.GetIdentifier("status_bar_height", "dimen", "android");
if (resourceId > 0)
_statusbarHeight = Resources.GetDimensionPixelSize(resourceId);

return _statusbarHeight;
}

void AnimateArrowIn()
{
Expand Down Expand Up @@ -906,4 +927,4 @@ public void OnDrawerStateChanged(int newState)
}
}
}
}
}