如何在使用 setVisibility(View.GONE); 后重绘 TextView
How to redraw a TextView after using setVisibility(View.GONE);
我想知道如何在使用 view.GONE 后重新创建视图。
我需要使 textview 在向下滚动时消失,并在向上滚动后返回。我想我应该先找到它,然后呢?
谢谢!
这是我的代码(使用片段):
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (view.getId() == listView.getId()) {
final int currentFirstVisibleItem = listView.getFirstVisiblePosition();
if (currentFirstVisibleItem > mLastFirstVisibleItem) {
textView.setVisibility(View.GONE);
} else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
TextView textView = (TextView) view.findViewById(R.id.textView);
//what goes here?
}
mLastFirstVisibleItem = currentFirstVisibleItem;
}
}
只需设置setVisibility(View.VISIBLE);
。试试这个方法。
if (currentFirstVisibleItem > mLastFirstVisibleItem) {
textView.setVisibility(View.GONE);
} else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
TextView textView = (TextView) view.findViewById(R.id.textView);
textView.setVisibility(View.VISIBLE);
}
就给
textView.setVisibility(View.VISIBLE);
我想知道如何在使用 view.GONE 后重新创建视图。 我需要使 textview 在向下滚动时消失,并在向上滚动后返回。我想我应该先找到它,然后呢? 谢谢! 这是我的代码(使用片段):
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (view.getId() == listView.getId()) {
final int currentFirstVisibleItem = listView.getFirstVisiblePosition();
if (currentFirstVisibleItem > mLastFirstVisibleItem) {
textView.setVisibility(View.GONE);
} else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
TextView textView = (TextView) view.findViewById(R.id.textView);
//what goes here?
}
mLastFirstVisibleItem = currentFirstVisibleItem;
}
}
只需设置setVisibility(View.VISIBLE);
。试试这个方法。
if (currentFirstVisibleItem > mLastFirstVisibleItem) {
textView.setVisibility(View.GONE);
} else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
TextView textView = (TextView) view.findViewById(R.id.textView);
textView.setVisibility(View.VISIBLE);
}
就给
textView.setVisibility(View.VISIBLE);