键盘弹出与收起

最新推荐文章于 2025-05-30 20:58:00 发布

原创最新推荐文章于 2025-05-30 20:58:00 发布 · 755 阅读

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#ios开发 #代理

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本文介绍了一种在iOS应用中注册键盘显示与隐藏通知的方法，并实现了当键盘出现时调整UITableView内容偏移量的功能，确保输入框不会被键盘遮挡。

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#pragma mark - keyBoardNotifacation

- (void)registerForKeyboardNotifications{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
}

- (void)keyboardWillShow:(NSNotification *)notification
{
    CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    
    UIEdgeInsets contentInsets;
    contentInsets = UIEdgeInsetsMake(0.0, 0.0, (keyboardSize.height+130), 0.0);
    
    self.tableView.contentInset = contentInsets;
}

- (void)keyboardWillHide:(NSNotification *)notification
{
    self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 110, 0);
}