android - 如何在按下时更改材质浮动操作按钮的颜色？

Question

按下按钮时如何更改 FAB 的颜色？我没有看到像onPressed().

标签： androidxmlkotlinmaterial-designfloating-action-button

Answer 1

You can use the app:rippleColor in your layour or the rippleColor attribute in the FAB style.

Where fab_ripple should be a selector.

Something like:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
      <item android:alpha="..." android:color="?attr/colorOnSecondary" android:state_pressed="true"/>
      <item android:alpha="..." android:color="?attr/colorOnSecondary" android:state_focused="true"/>
      <item android:alpha="..." android:color="?attr/colorOnSecondary" android:state_hovered="true"/>
      <item android:alpha="..." android:color="?attr/colorOnSecondary"/>

</selector>