我使用自定义视图完成了此操作。设置layout_width =“ fill_parent”和layout_height =“ wrap_content”，并将其指向适当的可绘制对象：
public class Banner extends View { private final Drawable logo; public Banner(Context context) { super(context); logo = context.getResources().getDrawable(R.drawable.banner); setBackgroundDrawable(logo); } public Banner(Context context, AttributeSet attrs) { super(context, attrs); logo = context.getResources().getDrawable(R.drawable.banner); setBackgroundDrawable(logo); } public Banner(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); logo = context.getResources().getDrawable(R.drawable.banner); setBackgroundDrawable(logo); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { int width = MeasureSpec.getSize(widthMeasureSpec); int height = width * logo.getIntrinsicHeight() / logo.getIntrinsicWidth(); setMeasuredDimension(width, height); }}
