objective-c - 如何在键盘打开的同时滚动表格 View ？

Question

我想要控制打开的键盘并能够同时滚动表格 View 。我现在必须关闭键盘才能滚动表格 View 。

Answer 1

您在 viewDidLoad 中注册通知并在 viewWillDisappear 中取消注册通知

[[NSNotificationCenter defaultCenter]
    addObserver:self
       selector:@selector(keyboardWillShow:)
           name:UIKeyboardWillShowNotification
         object:nil];
[[NSNotificationCenter defaultCenter]
    addObserver:self
       selector:@selector(keyboardWillHide:)
           name:UIKeyboardWillHideNotification
         object:nil];

简单地通过键盘的高度调整tableview的contentInset，然后将单元格滚动到底部:

- (void)keyboardWillShow:(NSNotification *)aNotification
{
    NSDictionary* info = [aNotification userInfo];
    CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0);
    self.myTableView.contentInset = contentInsets;
    self.myTableView.scrollIndicatorInsets = contentInsets;


}

- (void)keyboardWillHide:(NSNotification *)aNotification
{
    [UIView animateWithDuration:.3 animations:^(void) 
    {
        self.myTableView.contentInset = UIEdgeInsetsZero;
        self.myTableView.scrollIndicatorInsets = UIEdgeInsetsZero;
    }];
}