如图所示，需要高度固定死，宽度需要根据比例来自适应显示，于是找了资料，通过自定义view实现，重写onMeasure方法：
public class ResizableImageView extends androidx.appcompat.widget.AppCompatImageView {
public ResizableImageView(Context context) {
super(context);
}
public ResizableImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
Drawable d = getDrawable();
if (d != null) {
// ceil not round - avoid thin vertical gaps along the left/right edges
int width = View.MeasureSpec.getSize(widthMeasureSpec);
//高度根据使得图片的宽度充满屏幕计算而得
int height = (int) Math.ceil((float) width * (float) d.getIntrinsicHeight() / (float) d.getIntrinsicWidth());
setMeasuredDimension(width, height);
} else {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
}
