mirror of
https://github.com/NohamR/knowledge-kit.git
synced 2026-05-24 20:00:37 +00:00
27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
# UIScrollView 拖拽滑动时收起键盘
|
||
|
||
|
||
> 当一个页面的 UIScrollView/UITableView 上有输入框时，为了较好的体验，就是当滑动的时候需要回收键盘
|
||
|
||
* 最开始的做法是设置 UIScrollView 的代理位当前控制器，监听 scrollViewWillBeginDragging 方法，找到 keyWindow 并且 endEditing
|
||
|
||
|
||
```
|
||
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
|
||
[[UIApplication sharedApplication].keyWindow endEditing:YES];
|
||
}
|
||
```
|
||
|
||
* 之后偶然有幸看到一个 UIScrollView 的属性"keyboardDismissModel"。实现上述需求只需要一行代码
|
||
|
||
```
|
||
self.tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;
|
||
```
|
||
|
||
* keyboardDismissMode 有3个枚举值
|
||
|
||
* UIScrollViewKeyboardDismissModeNone：默认值，也就是拖拽时对于键盘没有任何影响。
|
||
|
||
* UIScrollViewKeyboardDismissModeOnDrag：（dismisses the keyboard when a drag begins）当刚拖拽的时候就会回收键盘
|
||
|
||
* UIScrollViewKeyboardDismissModeInteractive：（the keyboard follows the dragging touch off screen, and may be pulled upward again to cancel the dismiss）当向下滑动的时候键盘会跟随手势一起下滑，当向上滑动的时候键盘也会跟随手势向上滑动而出现。 |