CardView上的透明背景-Android [英] Transparent background on CardView - Android

问题描述

我想在CardView上做透明背景. 我知道backgroundColor但我的布局上有图像.

I want to do transparent background on CardView. I know backgroundColor but i have image on my Layout.

你知道怎么做吗?还是可以作为cardview使用的东西，但我会设置透明背景?

Do you know how do it? Or something which work as cardview but i will set a transparent background?

致谢

推荐答案

将CardView设置为使用cardBackgroundColor属性删除颜色，使用cardElevation属性删除阴影.例如:

Setup your CardView to use the cardBackgroundColor attribute to remove color and cardElevation attribute to remove the drop shadow. For example:

<android.support.v7.widget.CardView
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myCardView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    card_view:cardBackgroundColor="@android:color/transparent"
    card_view:cardElevation="0dp"> 

有关受支持属性的完整列表，请参见此处: https://developer.android .com/reference/android/support/v7/widget/CardView.html

For a full list of supported attributes see here: https://developer.android.com/reference/android/support/v7/widget/CardView.html

如果您使用的是较旧的API，则需要在CardView上调用以下两个函数:

If you are using an older API, you will need to call these two functions on your CardView instead:

myCardView.setCardBackgroundColor(Color.TRANSPARENT);
myCardView.setCardElevation(0);

这篇关于CardView上的透明背景-Android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！