android - 更改图像 float 操作按钮 Android

Question

我使用了这个库 https://github.com/futuresimple/android-floating-action-button .如何更改主按钮的图像？我想在选择一个较小的按钮后立即更改按钮图像。

Answer 1

来自 https://developer.android.com/reference/android/support/design/widget/FloatingActionButton.html

As this class descends from ImageView, you can control the icon which is displayed via setImageDrawable(Drawable).

或者你可以使用 setImageResource():

fab.setImageResource(R.drawable.ic_shopping_cart_white);