android通過代碼獲取佈局的寬高

思想，先測量，執行measure(0, 0);，然後獲取getMeasuredHeight();

 

ll_refrashHeadViewRoot = (LinearLayout) mRootHeadView.findViewById(R.id.ll_refreshhead_root);
        
        //獲取下拉刷新頭的高度
        ll_refrashHeadViewRoot.measure(0, 0);
        mRefrashHeadViewHeight = ll_refrashHeadViewRoot.getMeasuredHeight();