在TextView对象上设置背景并保持波纹效果 [英] Set background on TextView object and maintain ripple effect

问题描述

我想以编程方式设置TextView对象的背景，但也会对此产生连锁反应.

I want to set the background of a TextView object programmatically, but also have a ripple effect for it.

我可以将背景设置为android:selectableItemBackground，但是在设置背景时波纹效果会消失.

I can use with background set to android:selectableItemBackground, but the ripple effect gets lost, when setting the background.

我还尝试将ImageView和TextView放在FrameLayout中.并将图像设置为不是TextView的背景，而是设置为ImageView的图像:是的，有波纹，但它似乎在图像的后面".

I also tried putting an ImageView together with the TextView in a FrameLayout. And set the image not as the background of the TextView, but as image of the ImageView: Yes, ripple is there, but it appears to be "behind" the image.

是否需要从位图为背景创建RippleDrawable?我该怎么办?

Do I need to create a RippleDrawable from the bitmapfor the background? How would I do that?

推荐答案

我遇到了与您相同的问题，并使用
进行了修复 android:foreground="?attr/selectableItemBackground"在FrameLayout上.

I had same problem as you and fixed it using
android:foreground="?attr/selectableItemBackground" on FrameLayout.

这是示例FrameLayout:

Here is the sample FrameLayout:

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/more"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:clickable="true"
    android:foreground="?attr/selectableItemBackground">
    <ImageView
        android:id="@+id/discover_carousel_item_image"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center_vertical|center_horizontal"
        android:scaleType="fitXY" />
</FrameLayout>

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