ImageView 只有底角或顶角是圆角的

You can't just round image corners with shape @drawable like usual View. That's why you need to make some changes to Image inside code.

Here is the another way to do this using Material Design ShapeableImageView

Create one theme for shape and cornerFamily

<style name="ImageView.Corner" parent="">
        <item name="cornerSizeTopRight">8dp</item>
        <item name="cornerSizeTopLeft">8dp</item>
        <item name="cornerSizeBottomLeft">0dp</item>
        <item name="cornerSizeBottomRight">0dp</item>
        <item name="cornerFamily">rounded</item>
    </style>

Now add ShapeableImageView in XML:

<com.google.android.material.imageview.ShapeableImageView
     android:layout_width="75dp"
     android:layout_height="75dp"
     app:layout_constraintBottom_toBottomOf="parent"
     app:layout_constraintStart_toStartOf="parent"
     app:layout_constraintTop_toTopOf="parent"
     app:srcCompat="@drawable/temp_product_image"
     app:shapeAppearanceOverlay="@style/ImageView.Corner"/>

I you want to full rounded ShapeableImageView:

<style name="ImageView.Round" parent="">
  <item name="cornerSize">50%</item>
</style>

Full Rounded Output:

That's it Happy Coding :).

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