blocks|key|2178377|text|我为iOS+13设置了一个雷达，因为我有一个双语的日语/英语应用程序。有些字段是日语的，有些是英语的，所以很明显，向用户展示正确的键盘类型是有意义的，而不是让他们来回翻转20次。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2178378|有一个解决办法，就是在UIKit调用“textInputMode”之后，在主线程中可以这样做：|2178379|//+has+to+be+done+after+the+textInputMode+method+is+called
if+#available(iOS+13,+*)+{
++++textField.keyboardType+=+textField.keyboardType
}+|code-block|syntax|javascript|2178380|这将迫使键盘在使用所需的textInputMode进行应答后重新加载。我向他们报告了错误，并提出了解决办法，以获得正确的行为。|2178381|因此，在iOS+13.1中，错误没有得到修复，但是他们阻止了我的解决办法。|2178382|好的。我不会再向他们报告任何虫子了。相反，如果我找到了解决办法，我就会使用它。|2178383|因此，他们现在似乎正在静默地禁用此功能。这是一个特性，这是这个方法调用的字面意义，目的是找出应该给用户提供什么样的输入模式。|2178384|不过，如果你有另一种语言，并且想选择英语的话，它仍然可以工作。|2178385|因此，如果我的用户将日语设置为键盘选择，那么我可以强制使用英语键盘。只是不是相反的。任何获得日文输入模式的尝试最终都会出现在英语键盘上。|2178386|编辑：|2178387|还有另一种方法可以解决这个问题，但是它涉及到内部API的发现和使用，这并不简单。您必须从本质上找到用于管理按下地球仪按钮的结果的函数。如果你这样做，你实际上是在模拟用户的水龙头，它有广泛的影响，也就是说，键盘也将改变为其他应用程序。因此，它是不推荐的，100%25，它将失败应用商店提交。我不想发布它，因为我的最后一个解决办法的结果。|2178388|我认为很难很容易地理解苹果。我只知道：|2178389|API不像发布的那样起作用。|ordered-list-item|2178390|据报道，他们没有修复这个错误。|2178391|自从提出报告以来，他们就(有意或无意)破坏了解决办法。|2178392|因此，未来的解决方案应该囤积起来，直到他们的意图明确和/或他们修复这个错误(这是他们应该做的)。简单地撤销部分API而不发布更改是一个主要的错误。|2178393|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1D|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1E|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1F|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1G|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1H|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1I|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1J|8|@]|9|@]|A|$]]|$1|U|3|V|5|6|7|1K|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1L|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1M|8|@]|9|@]|A|$]]|$1|10|3|11|5|12|7|1N|8|@]|9|@]|A|$]]|$1|13|3|14|5|12|7|1O|8|@]|9|@]|A|$]]|$1|15|3|16|5|12|7|1P|8|@]|9|@]|A|$]]|$1|17|3|18|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|19|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|1A|$]]

I filed a radar on this for iOS 13 because I have a bilingual Japanese/English app. Some fields are Japanese and some English so obviously it makes sense to present the right keyboard type to the user instead of making them flip back and forth 20 times.

There was a workaround for this, and that was that after the UIKit calls 'textInputMode', in the main thread you could do this:

<pre><code>// has to be done after the textInputMode method is called
if #available(iOS 13, *) {
 textField.keyboardType = textField.keyboardType
} 
</code></pre>

This forces the keyboard to reload after answering with the textInputMode that you wanted. I informed them of the bug, and the workaround to get correct behavior.

So in iOS 13.1 the bug was not fixed, however they blocked my workaround.

Nice. I won't report any bugs to them again. Rather if I find a workaround I will just use it.

So it seems like they now are silently disabling this feature. And it is a feature, this is literally the purpose of this method call, to find out what input mode should be presented to the user.

It still works ok though if you have another language and want to select English.

So if my user sets Japanese as the keyboard selection then I can force an English keyboard up. Just not the other way around. Any attempts to get a Japanese input mode end up in an English keyboard.

EDIT:

There is another path that you can work around this, but it involves discovery and use of internal API which is not straightforward. You'd have to essentially find the functions used to manage the results of hitting the globe button. If you do that you're essentially simulating the user's taps and it has wide ranging effects, that is, the keyboard will be changed for other apps too. So it's not recommended, 100% it will fail App Store submission. I don't want to post it because of the results of my last workaround. 

I think it's not possible to understand Apple very easily. All I know is that:

<ol>
<li>the API is not functioning as published</li>
<li>it was reported and they did not fix the bug</li>
<li>since the time of reporting they broke (intentionally or not) the workaround</li>
</ol>

So future workarounds should be hoarded until their intentions are clear and/or they fix this bug (which is what they should do). Simply revoking part of the API without publishing the change is a major bug.

blocks|key|2178434|text|您需要在textinputcontextidentifier上设置textField，以便iOS知道在哪里保存自定义textInputMode|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2178435|它不是在文档中写的，但它有效。|2178436|参考文献：https://developer.apple.com/documentation/uikit/uiresponder/1621091-textinputcontextidentifier|2178437|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/documentation/uikit/uiresponder/1621091-textinputcontextidentifier^0|4|Q|1M|D|0|0|5|2M|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|J|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

You need to set <code>textinputcontextidentifier</code> on the textField so that iOS knows where to save the custom <code>textInputMode</code>

It isn't written in the doc but it works.

ref: <a href="https://developer.apple.com/documentation/uikit/uiresponder/1621091-textinputcontextidentifier" rel="noreferrer">https://developer.apple.com/documentation/uikit/uiresponder/1621091-textinputcontextidentifier</a>

blocks|key|1544181|text|注意:确保启用了Emoji键盘。|type|blockquote|depth|inlineStyleRanges|entityRanges|data|1544182|这似乎是一个iOS+13错误，所做的工作(对于设备，这不影响模拟器)是覆盖textInputContextIdentifier属性并返回一个非零值。|unstyled|offset|length|style|CODE|1544183|//
//++ViewController.swift
//++Keyboard+Info
//
//++Created+by+Richard+Stelling+on+30/09/2019.
//++Copyright+©+2019+Richard+Stelling.+All+rights+reserved.
//

import+UIKit

class+TestButton:+UIButton,+UIKeyInput+{

++++var+hasText:+Bool+=+true

++++override+var+textInputContextIdentifier:+String?+{+""+}+//+return+non-nil+to+show+the+Emoji+keyboard+¯\_(ツ)_/¯+

++++func+insertText(_+text:+String)+{+print("\(text)")+}

++++func+deleteBackward()+{}

++++override+var+canBecomeFirstResponder:+Bool+{+return+true+}

++++override+var+canResignFirstResponder:+Bool+{+return+true+}

++++override+var+textInputMode:+UITextInputMode?+{
++++++++for+mode+in+UITextInputMode.activeInputModes+{
++++++++++++if+mode.primaryLanguage+==+"emoji"+{
++++++++++++++++return+mode
++++++++++++}
++++++++}
++++++++return+nil
++++}
}|code-block|syntax|javascript|1544184|感谢布勒尔德的回答。|1544185|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/4143698/blld^0|0|11|Q|0|0|2|4|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@$E|Z|F|10|G|H]]|9|@]|A|$]]|$1|I|3|J|5|K|7|11|8|@]|9|@]|A|$L|M]]|$1|N|3|O|5|6|7|12|8|@]|9|@$E|13|F|14|1|15]]|A|$]]|$1|P|3|-4|5|D|7|16|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W]]]]

<blockquote>
 NB: Make sure you have the Emoji keyboard enabled.
</blockquote>

This seems to be an iOS 13 bug, the work around (for devices, this does not affect the Simulator) is to override the <code>textInputContextIdentifier</code> property and return a non-nil value.

<pre class="lang-swift prettyprint-override"><code>//
// ViewController.swift
// Keyboard Info
//
// Created by Richard Stelling on 30/09/2019.
// Copyright © 2019 Richard Stelling. All rights reserved.
//

import UIKit

class TestButton: UIButton, UIKeyInput {

 var hasText: Bool = true

 override var textInputContextIdentifier: String? { "" } // return non-nil to show the Emoji keyboard ¯\_(ツ)_/¯ 

 func insertText(_ text: String) { print("\(text)") }

 func deleteBackward() {}

 override var canBecomeFirstResponder: Bool { return true }

 override var canResignFirstResponder: Bool { return true }

 override var textInputMode: UITextInputMode? {
 for mode in UITextInputMode.activeInputModes {
 if mode.primaryLanguage == "emoji" {
 return mode
 }
 }
 return nil
 }
}
</code></pre>

<blockquote>
 Thanks to <a href="https://stackoverflow.com/users/4143698/blld">blld</a> for his answer.
</blockquote>

blocks|key|159268|text|简单地做|type|unstyled|depth|inlineStyleRanges|entityRanges|data|159269|class+EmojiTextField:+UITextField+{

+++//+required+for+iOS+13
+++override+var+textInputContextIdentifier:+String?+{+""+}+//+return+non-nil+to+show+the+Emoji+keyboard+¯\_(ツ)_/¯+

++++override+var+textInputMode:+UITextInputMode?+{
++++++++for+mode+in+UITextInputMode.activeInputModes+{
++++++++++++if+mode.primaryLanguage+==+"emoji"+{
++++++++++++++++return+mode
++++++++++++}
++++++++}
++++++++return+nil
++++}

override+init(frame:+CGRect)+{
++++++++super.init(frame:+frame)

++++++++commonInit()
++++}

++++required+init?(coder:+NSCoder)+{
++++++++super.init(coder:+coder)

+++++++++commonInit()
++++}

++++func+commonInit()+{
++++++++NotificationCenter.default.addObserver(self,
+++++++++++++++++++++++++++++++++++++++++++++++selector:+#selector(inputModeDidChange),
+++++++++++++++++++++++++++++++++++++++++++++++name:+UITextInputMode.currentInputModeDidChangeNotification,
+++++++++++++++++++++++++++++++++++++++++++++++object:+nil)
++++}

++++@objc+func+inputModeDidChange(_+notification:+Notification)+{
++++++++guard+isFirstResponder+else+{
++++++++++++return
++++++++}

++++++++DispatchQueue.main.async+{+[weak+self]+in
++++++++++++self?.reloadInputViews()
++++++++}
++++}
}|code-block|syntax|javascript|159270|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

do Simply
<pre><code>class EmojiTextField: UITextField {

 // required for iOS 13
 override var textInputContextIdentifier: String? { &quot;&quot; } // return non-nil to show the Emoji keyboard ¯\_(ツ)_/¯ 

 override var textInputMode: UITextInputMode? {
 for mode in UITextInputMode.activeInputModes {
 if mode.primaryLanguage == &quot;emoji&quot; {
 return mode
 }
 }
 return nil
 }

override init(frame: CGRect) {
 super.init(frame: frame)

 commonInit()
 }

 required init?(coder: NSCoder) {
 super.init(coder: coder)

 commonInit()
 }

 func commonInit() {
 NotificationCenter.default.addObserver(self,
 selector: #selector(inputModeDidChange),
 name: UITextInputMode.currentInputModeDidChangeNotification,
 object: nil)
 }

 @objc func inputModeDidChange(_ notification: Notification) {
 guard isFirstResponder else {
 return
 }

 DispatchQueue.main.async { [weak self] in
 self?.reloadInputViews()
 }
 }
}
</code></pre>

Solution

Here is a <a href="https://stackoverflow.com/a/58543417/89035">full solution/work</a> around for this issue, please up vote Blld's <a href="https://stackoverflow.com/a/58537544/89035">answer</a> as well because this was the vital bit of info needed!

Alternative titles to aid search

<ul>
<li>Showing the Emoji keyboard as default for a UIKeyInput object (in iOS 13)</li>
<li>Force iOS 13 to show the Emoji keyboard</li>
<li>Setting the <code>UITextInputMode.primaryLanguage</code> to emoji</li>
<li>Programatically set the keyboard to emoji</li>
</ul>

Prior to <a href="/questions/tagged/ios13" class="post-tag" title="show questions tagged &#39;ios13&#39;" rel="tag">ios13</a> returning the <code>UITextInputMode</code> with <code>primaryLanguage</code> that equaled "emoji" would default to showing the Emoji Keyboard (see image below).

<a href="https://i.stack.imgur.com/yLH1ll.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/yLH1ll.jpg" alt="Emoji keyboard screen shot"></a>

Example code for returning the "emoji" <code>UITextInputMode</code>.

<pre class="lang-swift prettyprint-override"><code>//
// ViewController.swift
// Keyboard Info
//
// Created by Richard Stelling on 30/09/2019.
// Copyright © 2019 Richard Stelling. All rights reserved.
//

import UIKit

class TestButton: UIButton, UIKeyInput {

 var hasText: Bool = true

 func insertText(_ text: String) { print("\(text)") }

 func deleteBackward() {}


 override var canBecomeFirstResponder: Bool { return true }

 override var canResignFirstResponder: Bool { return true }

 override var textInputMode: UITextInputMode? {
 for mode in UITextInputMode.activeInputModes {
 if mode.primaryLanguage == "emoji" {
 return mode
 }
 }
 return nil
 }
}
</code></pre>

Running this code on iOS 12 will set the keyboard to the system Emoji Keyboard, but on iOS 13 it has no affect. 

Is this a known bug? Is there a workaround? 

Updates

<ul>
<li>Requested by <a href="https://stackoverflow.com/users/8545002/navillus">@Navillus</a>, the full list of "active input modes" is; "en-GB", "emoji"</li>
<li>Tested and confirmed on; 13.0, 13.1, 13.1.1, 13.1.2 and 13.2 (seed 1)</li>
</ul>

Showing the system Emoji keyboard by default on iOS 13

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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溶液这是一个关于这个问题的，请投票给Blld的，因为这是所需的重要信息！辅助搜索的替代标题将Emoji键盘显示为UIKeyInput对象的默认值(在iOS 13中)强制iOS 13显示Emoji键盘将UITextInputMode.primaryLanguage设置为emoji可编程地将键盘设置为emoji在之前，返回...

问默认情况下，在iOS 13上显示系统Emoji键盘
EN

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问默认情况下，在iOS 13上显示系统Emoji键盘EN