markdown 浮动动作按钮提示和技巧

Posted 2021-05-06

# Floating Action Button Tip and Trick

[SOURCE](https://stackoverflow.com/a/45212700/1602807), [SOURCE](https://stackoverflow.com/a/46328663/1602807)

```
<android.support.design.widget.FloatingActionButton
        android:layout_width="56dp"
        android:layout_height="56dp"
        
        //ripple
        android:clickable="true"
        android:focusable="true"
        app:rippleColor="@color/fancy_blue"
        
        //change color, use app: not android:
        app:backgroundTint="@color/light_white"
        
        //elevation
        app:elevation="4dp"
        app:pressedTranslationZ="12dp"
        
        app:srcCompat="@drawable/ic_plus"
        />
```