聊天 Screen/Window 布局设计

Question

我需要有关如何执行此操作的建议（最佳实践方式）：

我正在使用 XCode 6.1.1，使用 Swift 并启用了自动布局。所以在图片中我已经这样设置了布局。请注意，在滚动视图中，我将 UITableView 与另一个 UIView 一起放置，其中包含一个 UITextField

我也已经实现了这个：How to make a UITextField move up when keyboard is present?

所以这是我的代码：

func registerForKeyboardNotifications()
{
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardDidShow:", name: UIKeyboardDidShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardDidHide:", name: UIKeyboardDidHideNotification, object: nil)
}

func keyboardDidShow(aNotification: NSNotification)
{
    var info: NSDictionary = aNotification.userInfo!
    var kbSize: CGSize = (info.objectForKey(UIKeyboardFrameBeginUserInfoKey)?.CGRectValue() as CGRect!).size

    var contentInsets: UIEdgeInsets = UIEdgeInsetsMake(0.0, 0.0, kbSize.height, 0.0)
    svBody.contentInset = contentInsets
    svBody.scrollIndicatorInsets = contentInsets

    self.view.layoutIfNeeded()
}

func keyboardDidHide(aNotification: NSNotification)
{
    var contentInsets: UIEdgeInsets = UIEdgeInsetsZero
    svBody.contentInset = contentInsets
    svBody.scrollIndicatorInsets = contentInsets

    self.view.layoutIfNeeded()
}

问题是当我运行它时，我还可以将我的 viewBottom 滚动到键盘后面，我不希望这样。

我想要实现的是：

我需要 viewBottom 粘在键盘上
只有myTable可以滚动

我怎样才能最好地做到这一点？

Answer 1

好吧，我自己想出来了。

下面是供大家使用的代码：

func registerForKeyboardNotifications()
{
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardDidShow:", name: UIKeyboardDidShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardDidHide:", name: UIKeyboardDidHideNotification, object: nil)
}

func keyboardDidShow(aNotification: NSNotification)
{
    var info: NSDictionary = aNotification.userInfo!
    var kbSize: CGSize = (info.objectForKey(UIKeyboardFrameBeginUserInfoKey)?.CGRectValue() as CGRect!).size

    UIView.animateWithDuration(0.2, animations: { () -> Void in
        var contentInsets: UIEdgeInsets = UIEdgeInsetsMake(kbSize.height, 0, 0, 0)
        self.myTable.contentInset = contentInsets
        self.myTable.scrollIndicatorInsets = contentInsets

        var contentOffsetSV: CGPoint = CGPointMake(0, kbSize.height)
        self.svBody.contentOffset = contentOffsetSV

        self.view.layoutIfNeeded()
    })

}

func keyboardDidHide(aNotification: NSNotification)
{
    UIView.animateWithDuration(0.2, animations: { () -> Void in
        var contentInsets: UIEdgeInsets = UIEdgeInsetsZero
        self.myTable.contentInset = contentInsets
        self.myTable.scrollIndicatorInsets = contentInsets

        var contentOffsetSV: CGPoint = CGPointMake(0, 0)
        self.svBody.contentOffset = contentOffsetSV

        self.view.layoutIfNeeded()
    })
}

好分享 ;) 干杯，

阿德里安

聊天 Screen/Window 布局设计

Chat Screen/Window Layout Design

xcode

ios

swift