如何在Android中创建圆角SurfaceView

Question

I want to make a surface view which can have rounded corners. This surface view will be useful to render the video camera.

I have already tried adding the surface view in the CardView with this code.

<android.support.v7.widget.CardView 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/cvCard"
    android:layout_width="150dp"
    android:layout_height="150dp"
    android:clipChildren="true"
    android:clipToPadding="false"
    app:cardCornerRadius="15dp"
    app:cardPreventCornerOverlap="false"
    app:cardUseCompatPadding="false">

    <Surfaceview is Added Programatically>

</android.support.v7.widget.CardView>

The result of this code is this image . As you can see in the round corners the surface view is still visible. It is not entirely round within the card view and it always comes in rectangle shape.

So is there any way to achieve the rounded corner Surfaceview?

Answer 1

You can not change directly surface view corner (Shape). But you can change your CardView corner by using

app:cardCornerRadius="10dp" 
app:cardPreventCornerOverlap="false"

and set the SurfaceView match_parent that can cover the cardView .

Why you cannot change surface view shape? The answer is here