cellLinkage.gif
使用scorllview监听滚动方法和masonry约束更新即可完成
核心代码
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
NSLog(@"滑动开始");
[UIView animateWithDuration:0.5 animations:^{
[self.suspenBtn mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(-45);
}];
[self.suspenBtn.superview layoutIfNeeded];
}];
}
- (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView
{
NSLog(@"滑动松开自动滑动开始");
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
NSLog(@"滑动结束");
// [self.view setNeedsUpdateConstraints];
[UIView animateWithDuration:0.5 animations:^{
[self.suspenBtn mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(0);
}];
[self.suspenBtn.superview layoutIfNeeded];
}];
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
if(!decelerate){
DDLogVerbose(@"----tableview停止滚动！！！！");
// [self.view setNeedsUpdateConstraints];
[UIView animateWithDuration:0.5 animations:^{
[self.suspenBtn mas_updateConstraints:^(MASConstraintMaker *make) {
make.left.mas_equalTo(0);
}];
[self.suspenBtn.superview layoutIfNeeded];
}];
}else {
DDLogVerbose(@"----tableview正在滚动！！！！");
}
}
