nickbutcher

/* Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
someView.background = AppCompatResources.getDrawable(someView.context, R.drawable.foo)

nickbutcher

/* Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
someView.background = AppCompatResources.getDrawable(requireContext(), R.drawable.foo)

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<ViewGroup …
-   android:theme="@style/Theme.App.Foo">
+   android:theme="@style/ThemeOverlay.App.Foo">
<Button …
-   android:theme="@style/Theme.App.Bar"/>
+   android:theme="@style/ThemeOverlay.App.Bar"/>
</ViewGroup>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<style name="ThemeOverlay.MyApp.DarkSurface" parent="">
  <item name="colorSurface">#121212</item>
</style>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<ViewGroup …
  android:theme="@style/Theme.App.Foo">
  <Button …
    android:theme="@style/Theme.App.Bar"/>
</ViewGroup>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<View …
  android:background="@drawable/a_solid_white_rectangle_shape_drawable"
  app:backgroundTint="@color/some_color_state_list"/>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<View …
  android:background="@color/foo"/>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<selector …
  <item android:alpha="0.50" android:color="#80ffffff" />
</selector>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<selector …
  <item android:alpha="0.20" android:color="?attr/colorPrimary" />
</selector>

nickbutcher

<!-- Copyright 2019 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 -->
<View …
  android:background="@color/primary_20"/>