ImageView selectableItemBackgroundBorderless不呈现在视图范围之外 [英] ImageView selectableItemBackgroundBorderless does not render outside of view bounds

问题描述

我正在使用selectableItemBackgroundBorderless向ImageView添加波纹. 我的预期行为是产生圆形波纹，从而扩展视图的大小.不幸的是，涟漪因视角范围而被裁剪. 该问题如何解决?

I am using selectableItemBackgroundBorderless to add a ripple to an ImageView. My expected behaviour would be to have a circular ripple, extending the views size. Unfortunately the ripple gets cropped by the view bounds. How can this issue be solved?

默认状态:

按下状态:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/nav_instruction_container"
    android:layout_width="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_height="wrap_content"
    xmlns:tools="http://schemas.android.com/tools"
    android:background="@drawable/nav_gradient_bg"
    android:padding="20dp">
    <ImageView
        android:id="@+id/nav_sign"
        android:layout_width="wrap_content"
        android:layout_height="46dp"
        android:layout_centerVertical="true"
        android:scaleType="centerInside"
        android:adjustViewBounds="true"
        />

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/nav_sign"
        android:layout_marginLeft="24dp"
        android:layout_marginStart="24dp"
        android:layout_marginRight="24dp"
        android:layout_marginEnd="24dp"
        android:textColor="@color/white"
        android:textSize="24sp"
        android:textStyle="bold"
        android:maxLines="2"
        tools:text="A644 Shudehill asdfkjasdf asdfasdf asdfsss"
        android:ellipsize="marquee"
        />

    <TextView
        android:id="@+id/subTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/title"
        android:layout_toRightOf="@+id/nav_sign"
        android:layout_marginLeft="24dp"
        android:layout_marginStart="24dp"
        android:layout_marginRight="24dp"
        android:layout_marginEnd="24dp"
        android:textColor="@color/white"
        android:textSize="17sp"
        tools:text="via Church St"
        />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        app:srcCompat="@drawable/ic_nav_queue_sheet_icon_light"
        android:id="@+id/nav_queue"
        android:scaleType="centerInside"
        android:foreground="?attr/selectableItemBackgroundBorderless"
        android:adjustViewBounds="true"/>
</RelativeLayout>

推荐答案

如果您具有可点击的ImageView，则很有可能应该是ImageButton.

If you have a clickable ImageView, then most possibly it should be an ImageButton instead.

已根据ImageButton进行了定义:

<ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="?attr/selectableItemBackgroundBorderless"
    app:srcCompat="@drawable/ic_navigation_black_24dp" />

然后您将获得以下输出:

Then you'll get following output:

如果想要更大的波纹效果，则必须更改视图的大小:代替wrap_content使其变为100dp:

If you want bigger ripple effect, you have to change view's size: instead of wrap_content make it, let's say, 100dp:

这篇关于ImageView selectableItemBackgroundBorderless不呈现在视图范围之外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！