1
我有一個tableView。在視圖上是UIButton。我希望當向下滾動按鈕淡入淡出,當滾動停止或向上按鈕顯示。淡入淡出/向上滾動顯示UIButton
代碼:
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView{
NSLog(@"Start scroll");
//I assume the buttons are within your cells so you will have to enable them within your cells so you will probably have to handle this by sending a custom message to your cells or accessing them with properties.
CGRect frame = addCommentBtn.frame;
frame.origin.y = scrollView.contentOffset.y + self.newsTableView.frame.size.height + 4;
addCommentBtn.frame = frame;
[self.view bringSubviewToFront:addCommentBtn];}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
NSLog(@"End scroll");
// do the same to enable them back
CGRect frame = addCommentBtn.frame;
frame.origin.y = scrollView.contentOffset.y + self.newsTableView.frame.size.height + 4;
addCommentBtn.frame = frame;
[self.view bringSubviewToFront:addCommentBtn];}
,但無法正常工作! 謝謝