启用键盘时可以使iOS页面可滚动

如果您想使用UIScrolView,您应该将UIView注册表格插入到UIScrolView并设置内容大小.

代码狙击手如何处理键盘和scrollview.

首先,您应该知道何时显示键盘并隐藏.使用通知：

- (void)registerForKeyboardNotifications
{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWasShown:)
                                                 name:UIKeyboardDidShowNotification object:nil];

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

}

之后使用方法(keyboardWasShown和keyboardWillBeHidden)的通知来改变contentInsets.

更改contentInsets的示例：

- (void)keyboardWasShown:(NSNotification*)aNotification
{
    NSDictionary* info = [aNotification userInfo];
    CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0,0.0,kbSize.height,0.0);
    scrollView.contentInset = contentInsets;
    scrollView.scrollIndicatorInsets = contentInsets;
}

- (void)keyboardWillBeHidden:(NSNotification*)aNotification
{
    UIEdgeInsets contentInsets = UIEdgeInsetsZero;
    scrollView.contentInset = contentInsets;
    scrollView.scrollIndicatorInsets = contentInsets;
}

最后解决方案取决于您的选择,您可以像UIScrolView参数一样更改框架或约束.