Created
November 30, 2017 22:32
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Android - Toolbar Background
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| void UpdateToolbarBackground(Android.Support.V7.Widget.Toolbar toolbar, Page lastPage, Activity activity, Android.Graphics.Drawables.Drawable defaultBackground) | |
| { | |
| if (string.IsNullOrEmpty(CustomNavigationPage.GetBarBackground(lastPage)) && CustomNavigationPage.GetGradientColors(lastPage) == null) | |
| { | |
| toolbar.SetBackground(defaultBackground); | |
| } | |
| else | |
| { | |
| if (!string.IsNullOrEmpty(CustomNavigationPage.GetBarBackground(lastPage))) | |
| { | |
| toolbar.SetBackgroundResource(this.Context.Resources.GetIdentifier(CustomNavigationPage.GetBarBackground(lastPage), "drawable", Android.App.Application.Context.PackageName)); | |
| } | |
| if (CustomNavigationPage.GetGradientColors(lastPage) != null) | |
| { | |
| var colors = CustomNavigationPage.GetGradientColors(lastPage); | |
| var direction = GradientDrawable.Orientation.TopBottom; | |
| switch (CustomNavigationPage.GetGradientDirection(lastPage)) | |
| { | |
| case CustomNavigationPage.GradientDirection.BottomToTop: | |
| direction = GradientDrawable.Orientation.BottomTop; | |
| break; | |
| case CustomNavigationPage.GradientDirection.RightToLeft: | |
| direction = GradientDrawable.Orientation.RightLeft; | |
| break; | |
| case CustomNavigationPage.GradientDirection.LeftToRight: | |
| direction = GradientDrawable.Orientation.LeftRight; | |
| break; | |
| } | |
| GradientDrawable gradient = new GradientDrawable(direction, new int[] { colors.Item1.ToAndroid().ToArgb(), colors.Item2.ToAndroid().ToArgb() }); | |
| gradient.SetCornerRadius(0f); | |
| if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.JellyBean) | |
| { | |
| toolbar.SetBackground(gradient); | |
| } | |
| else | |
| { | |
| toolbar.SetBackgroundDrawable(gradient); | |
| } | |
| } | |
| } | |
| toolbar.Background.SetAlpha((int)(CustomNavigationPage.GetBarBackgroundOpacity(lastPage) * 255)); | |
| } |
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