android自定義控件中? protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {// ? ? ? ?super.onMeasure(widthMeasureSpec, heightMeasureSpec);? ? ? ? setMeasuredDimension(backgroundBitmap.getWidth(), backgroundBitmap.getHeight());//為什么要用這個(gè)方法保存數(shù)據(jù)? ? }