HeathWang
commented
3 months ago 可以通过协议中的方法来动态处理
/**
* 询问delegate是否需要使拖拽手势生效
* 若返回NO，则禁用拖拽手势操作，即不能拖拽dismiss
* 默认为YES
*/
- (BOOL)shouldRespondToPanModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer;
/**
* 当pan recognizer状态为begin/changed时，通知delegate回调。
* 当拖动presented View时，该方法会持续的回调
* 默认实现为空
*/
- (void)willRespondToPanModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer;
/**
* 内部处理完成拖动操作后触发此回调，此时view frame可能已经变化。
* Framework has did finish logic for GestureRecognizer delegate. It will call many times when you darg.
*/
- (void)didRespondToPanModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer;
/**
* 内部处理完成拖动操作后触发此回调，此时view frame可能已经变化。
* Framework has did finish logic for GestureRecognizer delegate. It will call many times when you darg.
*/
- (void)didEndRespondToPanModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer;
/**
* 是否优先执行dismiss拖拽手势，当存在panScrollable的情况下，如果此方法返回YES，则
* dismiss手势生效，scrollView本身的滑动则不再生效。也就是说可以拖动Controller view，而scrollView没法拖动了。
*
* 例子：controller view上添加一个TableView，并铺满全屏，然后在controller view 顶部添加一个一定大小的viewA，
* 这个时候会发现viewA有时候无法拖动，可以实现此delegate方法来解决-
(BOOL)shouldPrioritizePanModalGestureRecognizer:(UIPanGestureRecognizer *)panGestureRecognizer { CGPoint loc = [panGestureRecognizer locationInView:self.view]; // check whether user pan action in viewA if (CGRectContainsPoint(self.viewA.frame, loc)) { return YES; }
return NO; }
- 默认为NO
- This delegate is useful when you want panGestureRecognizer has a high prioritize and
- make scrollable does NOT scroll.
- Example: You controller add a full size tableView, then add viewA on top of your controller view.
- Now you find you can not drag the viewA, use this delegate to resolve problem.
- Please refer to code above this comment.
- Default is NO
*/
- (BOOL)shouldPrioritizePanModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer;
/**
- When you pan present controller to dismiss, and the view's y <= shortFormYPos,
- this delegate method will be called.
- @param percent 0 ~ 1, 1 means has dismissed
*/
- (void)panModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer dismissPercent:(CGFloat)percent;
- (void)panModalGestureRecognizer:(nonnull UIPanGestureRecognizer *)panGestureRecognizer dismissPercent:(CGFloat)percent;
ccccwhj-whj
场景： 还原类似于抖音评论弹起时，背景视屏等比缩小放大，需要实时获取到view的y高度。如果直接在完成的回掉中修改，效果不好
或者还有其他方案?