如何获取列表视图高度的Andr​​oid?视图、高度、列表、oid

2023-09-06 13:47:15 作者:价值人生

我要找到Android的ListView控件的自定义ListVAdapter的高度。每个ListView的项目可能有不同的高度。我曾尝试以下code,我在这里找到:

 公共静态无效setListViewHeightBasedOnChildren(ListView控件的ListView){

        ListAdapter listAdapter = listView.getAdapter();
        如果(listAdapter == NULL){
            返回;
        }

        INT totalHeight = 0;
        的for(int i = 0; I< listAdapter.getCount();我++){
            查看的listItem = listAdapter.getView(I,空,ListView控件);
            listItem.measure(0,MeasureSpec.UNSPECIFIED);
            totalHeight + = listItem.getMeasuredHeight();
        }

        ViewGroup.LayoutParams PARAMS = listView.getLayoutParams();
        params.height = totalHeight +(listView.getDividerHeight()*(listAdapter.getCount() -  1));
        listView.setLayoutParams(PARAMS);
        listView.requestLayout();
    }
 

但它并没有给实际高度;它提供了相同的高度,所有列表项。是否有可能找到的ListView的高度有不同高度的列表项?

解决方案

 私人诠释getTotalHeightofListView(){

    ListAdapter LvAdapter = lv.getAdapter();
    INT listviewElementsheight = 0;
    的for(int i = 0; I< mAdapter.getCount();我++){
        查看MVIEW = mAdapter.getView(I,空,LV);
        mView.measure(
                MeasureSpec.makeMeasureSpec(0,MeasureSpec.UNSPECIFIED),
                MeasureSpec.makeMeasureSpec(0,MeasureSpec.UNSPECIFIED));
        listviewElementsheight + = mView.getMeasuredHeight();
    }
    返回listviewElementsheight;
}
 

试试这个code。

I need to find the height of android ListView with custom ListVAdapter. Each of ListView items can be of varying height. I have tried the following code which I found here:

public static void setListViewHeightBasedOnChildren(ListView listView) {

        ListAdapter listAdapter = listView.getAdapter(); 
        if (listAdapter == null) {
            return;
        }

        int totalHeight = 0;
        for (int i = 0; i < listAdapter.getCount(); i++) {
            View listItem = listAdapter.getView(i, null, listView);
            listItem.measure(0, MeasureSpec.UNSPECIFIED);
            totalHeight += listItem.getMeasuredHeight();
        }

        ViewGroup.LayoutParams params = listView.getLayoutParams();
        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
        listView.setLayoutParams(params);
        listView.requestLayout();
    } 

But it doesn't give actual height; it gives same height for all list items. Is it possible to find ListView height with list items of varying height?

解决方案

private int getTotalHeightofListView() {

    ListAdapter LvAdapter = lv.getAdapter();
    int listviewElementsheight = 0;
    for (int i = 0; i < mAdapter.getCount(); i++) {
        View mView = mAdapter.getView(i, null, lv);
        mView.measure(
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
        listviewElementsheight += mView.getMeasuredHeight();
    }
    return listviewElementsheight;
}

try this code.