XML

<com.youth.banner.Banner
     android:id="@+id/banner"
     android:layout_width="match_parent"
     android:layout_height="170dp"
     android:layout_marginLeft="17dp"
     android:layout_marginTop="10dp"
     android:layout_marginRight="17dp"
     android:layout_marginBottom="10dp"
     app:image_scale_type="fit_xy" />

JAVA

binding.banner.setOutlineProvider(new ViewOutlineProvider() {
            @Override
            public void getOutline(View view, Outline outline) {
                outline.setRoundRect(0,0,view.getWidth(),view.getHeight(), 30);
            }
        });
binding.banner.setClipToOutline(true);

如果設置了android:hardwareAccelerated=”false”以上方法都無效