[Android] Fix API21 usage on shell (#8335)

* [Android] Fix API21 usage

* [Android] Remove extra usings

diff --git a/Xamarin.Forms.Platform.Android/Renderers/ShellItemRenderer.cs b/Xamarin.Forms.Platform.Android/Renderers/ShellItemRenderer.cs
index 4721ea5..0402577 100644 (file)
--- a/Xamarin.Forms.Platform.Android/Renderers/ShellItemRenderer.cs
+++ b/Xamarin.Forms.Platform.Android/Renderers/ShellItemRenderer.cs
@@ -140,7 +140,12 @@ namespace Xamarin.Forms.Platform.Android
                protected virtual Drawable CreateItemBackgroundDrawable()
                {
                        var stateList = ColorStateList.ValueOf(Color.Black.MultiplyAlpha(0.2).ToAndroid());
-                       return new RippleDrawable(stateList, new ColorDrawable(AColor.White), null);
+                       var colorDrawable = new ColorDrawable(AColor.White);
+
+                       if (Forms.IsLollipopOrNewer)
+                               return new RippleDrawable(stateList, colorDrawable, null);
+
+                       return colorDrawable;
                }
 
                protected virtual BottomSheetDialog CreateMoreBottomSheet(Action<ShellSection, BottomSheetDialog> selectCallback)
@@ -186,11 +191,14 @@ namespace Xamarin.Forms.Platform.Android
                                        image.LayoutParameters = lp;
                                        lp.Dispose();
 
-                                       image.ImageTintList = ColorStateList.ValueOf(Color.Black.MultiplyAlpha(0.6).ToAndroid());
                                        ShellContext.ApplyDrawableAsync(shellContent, ShellSection.IconProperty, icon =>
                                        {
                                                if (!image.IsDisposed())
+                                               {
+                                                       var color = Color.Black.MultiplyAlpha(0.6).ToAndroid();
+                                                       icon.SetTint(color);
                                                        image.SetImageDrawable(icon);
+                                               }
                                        });
 
                                        innerLayout.AddView(image);