我有嵌套的listView。如何强制listView的高度为大小,以便每一行都可见? ListView嵌套在ScrollView中,因此滚动不适用于ListView,因此我需要使所有项目在ListView中可见,这是嵌套离子ScrollView(上面有更多内容)。
答案 0 :(得分:4)
计算listView的高度
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
// pre-condition
return;
}
int totalHeight = 0;
int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(),
MeasureSpec.AT_MOST);
for (int i = 0; i < listAdapter.getCount(); i++) {
View listItem = listAdapter.getView(i, null, listView);
listItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
totalHeight += listItem.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight
+ (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
listView.requestLayout();
}
将listview对象传递给此方法。
setListViewHeightBasedOnChildren(listView)
答案 1 :(得分:0)
您可以使用此code.listview包含此属性
android:minheight="20dp";