安卓簡單開發--listview在Scrollview中只顯示一行

 在ScrollView中嵌套ListView空間，無法正確的計算ListView的大小

所以我們要在Scrollview中實現多條數據都有只需要：

private void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        // pre-condition
        return;
    }
    int totalHeight = 0;
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(0, 0);
        totalHeight += listItem.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight
            + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    
    listView.setLayoutParams(params);
}

就可以實現了，