在android中滚动时使scrollview的边缘淡化
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making the edge of the scrollview fade when scrolling in android
提问by roiberg
I have a ScrollViewwith an image in it.
我有一个ScrollView图像。
I want the edges of the ScrollViewto make a fade effect when I scroll the image.
I'm not talking about the effect you get when you get to the end of the scroll. I want the fade to always exist.
ScrollView当我滚动图像时，我希望 的边缘产生淡入淡出效果。我不是在谈论你到达卷轴末尾时获得的效果。我希望淡入淡出永远存在。
That's what i did (not doing any effect):
这就是我所做的（没有任何效果）：
<ScrollView
android:id="@+id/scrollView1"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.84"
android:background="@drawable/screen_nespresso"
android:fadingEdge="horizontal"
android:fadingEdgeLength="@dimen/padding_large"
android:fillViewport="false"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:visibility="visible" >
Thanks!
谢谢！
回答by Akshat
I am not sure if you this working, but here is what worked for me:
我不确定你是否这样工作，但这是对我有用的：
<ScrollView android:requiresFadingEdge="vertical">
and in your code, you can do the following
在您的代码中，您可以执行以下操作
ScrollView scroll = findById(); scroll.setFadingEdgeLength(150);
回答by batsheva
this is for horizontal:
这是水平的：
<HorizontalScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:requiresFadingEdge="horizontal"
android:fadingEdgeLength="80dp">
回答by Keerthan Chand
Add these lines in your ScrollView xml code.
在 ScrollView xml 代码中添加这些行。
<ScrollView
android:id="@+id/scrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fadeScrollbars="true"
android:requiresFadingEdge="vertical"
android:fadingEdgeLength="50dp">
