一.tableview 冲突问题
1. 遵守代理协议 UIGestureRecognizerDelegate
2. 给手势设置代理
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(respondsToTapGesture:)];
tap.delegate = self;
[self.view addGestureRecognizer:tap];
3.实现代理方法
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
// 点击的view的类名
NSLog(@"%@", NSStringFromClass([touch.view class]));
// 点击了tableViewCell，view的类名为UITableViewCellContentView，则不接收Touch点击事件
if ([NSStringFromClass([touch.view class]) isEqualToString:@"UITableViewCellContentView"]) {
return NO;
}
return YES;
}
二 collectionview 冲突问题
想要的效果 :既触发didSelectItemAtIndexPath方法，又能在CollectionView自身上处理TapGesture
问题 : collectionView没有内容视图, 不能像上面那样解决冲突
解决方法 :
1. 遵守代理协议 UIGestureRecognizerDelegate
2. 给手势设置代理
UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(cancelDelete)];
apGestureRecognizer.delegate = self; [注意点]
[self.collectionview addGestureRecognizer:tapGestureRecognizer];
3. self要实现UIGestureRecognizerDelegate协议，其中就有gestureRecognizer:shouldReceiveTouch:方法
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
if (touch.view != self.collectionView) {
return NO;
}else {
return YES;
}
}
