根据键盘和预测文本视图iOS 8向上或向下移动我的工具栏

Question

我正在开发一个聊天应用程序,它UITextView在聊天屏幕的底部有一个工具栏(带有和其他按钮),就像whatsapp一样,它根据键盘的可见性上下移动,直到iOS 7 才能正常工作.

我已经UIKeyboardDidChangeFrameNotification使用了以下代码,我用它来获取键盘框架

  CGRect kKeyBoardFrame = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];

并相应地设置工具栏的框架.

但它不适用于具有预测文本的iOS 8.任何帮助赞赏.

编辑:

UIKeyboardDidChangeFrameNotification 当预测文本视图向上或向下移动时,不会被激起.

附加快照

Answer 1

iOS 10、9 一直降到 5

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UIKeyboardDidChangeFrameNotification

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在键盘\xe2\x80\x99s 框架发生更改后立即发布。

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通知对象为零。userInfo 字典包含有关键盘的信息。使用键盘通知用户信息键中描述的键从 userInfo 字典中获取键盘的位置和大小。

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在 iPhone 6、iOS 10、9、8.4 上进行测试（链接、构建、运行，请参阅下面的日志）。

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字典显示&中值NSNotification的反转，并且当预测附件视图更改时，所有 4 个值都会被触发。CGRectUIKeyboardFrameBeginUserInfoKeyUIKeyboardFrameEndUserInfoKeyUIKeyboard__Notification

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雨燕3

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func addObserver(forName: Notification.Name) {\n    NotificationCenter.default.addObserver(forName: forName,\n                                           object: nil,\n                                           queue: OperationQueue.main)\n    { (note:Notification!) -> Void in\n        print("\\(forName): \\(note)")\n    }\n}\n\naddObserver(forName: .UIKeyboardWillShow)\naddObserver(forName: .UIKeyboardDidShow)\naddObserver(forName: .UIKeyboardWillChangeFrame)\naddObserver(forName: .UIKeyboardDidChangeFrame)\n

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打开预测

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日志：

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UIKeyboardWillChangeFrameNotification:
\n UIKeyboardWillShowNotification:
\n UIKeyboardDidChangeFrameNotification:
\n UIKeyboardDidShowNotification:
\n userInfo = {\n UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {375, 258}}";\n UIKeyboardCenterBeginUserInfoKey = "NSPoint: {187.5 , 554.5}";\n UIKeyboardCenterEndUserInfoKey = "NSPoint: {187.5, 538}";\n UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 442}, {375, 225}}";\n UIKeyboardFrameEndUserInfoKey = "NSRect: {{ 0, 409}, {375, 258}}";\n }

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关闭预测

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日志：

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UIKeyboardWillChangeFrameNotification:
\n UIKeyboardWillShowNotification:
\n UIKeyboardDidChangeFrameNotification:
\n UIKeyboardDidShowNotification:
\n userInfo = {\n UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {375, 225}}";\n UIKeyboardCenterBeginUserInfoKey = "NSPoint: {187.5 , 538}";\n UIKeyboardCenterEndUserInfoKey = "NSPoint: {187.5, 554.5}";\n UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 409}, {375, 258}}";\n UIKeyboardFrameEndUserInfoKey = "NSRect: {{ 0, 442}, {375, 225}}";\n }

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\xe2\x96\xba 在GitHub上找到此解决方案，并在Swift Recipes上找到其他详细信息。

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