取消键盘后使inputAccessoryView可见 [英] Leaving inputAccessoryView visible after keyboard is dismissed

问题描述

我想做的是在iPad上的Safari中创建类似于在页面上查找"搜索功能的内容.

What I'm trying to do is to create something similar to the "find on page" search function in Safari on iPad.

我正在使用带有某些项目的UIToolbar，并将其设置为UITextField上的inputAccessoryView并将其连接到键盘.就像魅力一样工作，但我无法弄清一件事.在Safari中，当您搜索某些内容时，键盘会消失，但工具栏仍保留在屏幕底部.

I'm using a UIToolbar with some items in it and attached it to the keyboard by setting it as an inputAccessoryView on the UITextField. Works like a charm, but there is one thing I can't figure out. In Safari, when you search for something, the keyboard disappears but the tool bar remains on the bottom of the screen.

有人对如何做到这一点有所了解吗?我能想到的唯一解决方案是响应键盘关闭事件，然后拉出UIToolBar并创建一个自定义动画，将其移动到屏幕底部.但这是hacky.我正在寻找更优雅的解决方案.可以让我决定在键盘被关闭时如何处理输入附件视图.

Does anyone have a clue on how to accomplish this? The only solution I can think of is to respond to a keyboard dismissed event and then pull out the UIToolBar and create a custom animation that moves it to the bottom of the screen. But this is hacky. I am looking for a more elegant solution. Something that can make me decide what to do with the input accessory view when the keyboard gets dismissed.

推荐答案

它是这样完成的:

将UIToolbar分配给视图控制器中的属性:

Assign your UIToolbar to a property in your view controller:

@property (strong, nonatomic) UIToolbar *inputAccessoryToolbar;

在顶视图控制器中，添加以下方法:

In your top view controller, add these methods:

- (BOOL)canBecomeFirstResponder{

    return YES;

}

- (UIView *)inputAccessoryView{

    return self.inputAccessoryToolbar;

}

然后(可选，因为通常不需要这样做)，每当键盘被隐藏时，只需调用:

And then (optionally, as it usually shouldn't be necessary), whenever the keyboard gets hidden, just call:

[self becomeFirstResponder];

这样，您的inputAccessoryToolbar既是视图控制器的视图，也是文本视图的输入附件视图.

That way, your inputAccessoryToolbar will be both your view controller's and your text view's input accessory view.

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