Floating Action Button: How to Use

Now a days, Floating Action Button ( FA) is popular under the materials design concept.  You can customize your fab icon with several default given attributes by the framework.

Code Snippet:

Here, 
1. app:backgroundTint is used to color background of the fab

   button.
2. android:src="@drawable/baseline_favorite_white_dp" is source of
the icon.
3. android:layout_gravity="end|bottom", set the position of the fab to right & bottom of the of the parent layout.
4. android:tint="@color/app_white", to color icon as tint color.

Here, The design looks like below picture.

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