Android之ScrollView嵌套ListView

問題所在：在ScrollView中嵌套使用ListView，ListView只會顯示一行多一點

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解決方案：  這裡我貼出了核心代碼

publicclass Utility {

       publicvoid setListViewHeightBasedOnChildren(ListView listView) {

              //擷取ListView對應的Adapter

              ListAdapter listAdapter = listView.getAdapter();

              if (listAdapter == null) {

                     return;

              }

             

              int totalHeight = 0;

              for (int i = 0, len = listAdapter.getCount(); i < len; i++) {   //listAdapter.getCount()返回資料項目的數目

                     View listItem = listAdapter.getView(i, null, listView);

                     listItem.measure(0, 0);  //計運算元項View 的寬高

                     totalHeight += listItem.getMeasuredHeight();  //統計所有子項的總高度

              }

             

              ViewGroup.LayoutParams params = listView.getLayoutParams();

              params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));

              //listView.getDividerHeight()擷取子項間分隔字元佔用的高度

              //params.height最後得到整個ListView完整顯示需要的高度

              listView.setLayoutParams(params);

       }

}

在setAdapter方法之後調用

new Utility().setListViewHeightBasedOnChildren(lv);