blocks|key|306046|text|尝尝这个|type|unstyled|depth|inlineStyleRanges|entityRanges|data|306047|for+aSubView:+Any+in+self.view.subviews+{
if+(aSubView+is+UITextField)+{
++++var+textField+=+(aSubView+as!+UITextField)
++++textField.+setBottomBorder()
}
}+++++|code-block|syntax|javascript|306048|或者试试这个|306049|for+view+in+self.view.subviews+{
if+(view+is+UITextField)+{
+++++var+textField+=+view+as!+UITextField
++++++textField.+setBottomBorder()
}
}|306050|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

try this

<pre><code>for aSubView: Any in self.view.subviews {
if (aSubView is UITextField) {
 var textField = (aSubView as! UITextField)
 textField. setBottomBorder()
}
} 
</code></pre>

or try this

<pre><code>for view in self.view.subviews {
if (view is UITextField) {
 var textField = view as! UITextField
 textField. setBottomBorder()
}
}
</code></pre>

blocks|key|3703088|text|(试试看:)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3703089|for+view+in+self.view.subviews+as!+[UIView]+{
++++if+let+textField+=+view+as?+UITextField+{
++++++++textField.setBottomBorder()
++++}
}|code-block|syntax|javascript|3703090|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|$]]

Try this :)

<pre><code>for view in self.view.subviews as! [UIView] {
 if let textField = view as? UITextField {
 textField.setBottomBorder()
 }
}
</code></pre>

blocks|key|3703102|text|我让它起作用了，但仍然需要解释为什么有问题的代码不能运行。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3703103|我从论坛的某个地方得到的，不能精确地相信答案。|3703104|/**+extract+all+the+textfield+from+view+**/
func+getTextfield(view:+UIView)+->+[UITextField]+{
var+results+=+[UITextField]()
for+subview+in+view.subviews+as+[UIView]+{
++++if+let+textField+=+subview+as?+UITextField+{
++++++++results+%2B=+[textField]
++++}+else+{
++++++++results+%2B=+getTextfield(view:+subview)
++++}
}
return+results++|code-block|syntax|javascript|3703105|在viewDidLoad或viewDidLayoutSubviews中调用上述函数。|3703106|override+func+viewDidLayoutSubviews()+{
++++super.viewDidLayoutSubviews()

/**+setting+bottom+border+to+the+textfield+**/
++++let+allTextField+=+getTextfield(view:+self.view)
++++for+txtField+in+allTextField
++++{
++++++++txtField.setBottomBorder()
++++}
}|3703107|entityMap^0|S|1|0|0|N|0|0|0|16|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|O|3|P|5|J|7|12|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|R|$]]

I made it working, but still need the explanation why the code in question is not working 
I got it from somewhere on the forum, not exactle able to credit the answer. 

<pre><code>/** extract all the textfield from view **/
func getTextfield(view: UIView) -&gt; [UITextField] {
var results = [UITextField]()
for subview in view.subviews as [UIView] {
 if let textField = subview as? UITextField {
 results += [textField]
 } else {
 results += getTextfield(view: subview)
 }
}
return results 
</code></pre>

Call the above function in viewDidLoad or viewDidLayoutSubviews.

<pre><code>override func viewDidLayoutSubviews() {
 super.viewDidLayoutSubviews()

/** setting bottom border to the textfield **/
 let allTextField = getTextfield(view: self.view)
 for txtField in allTextField
 {
 txtField.setBottomBorder()
 }
}
</code></pre>

blocks|key|3703113|text|这对我有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3703114|var+textFieldsArray+=+[UITextField]()

for+view+in+self.view.subviews+{
++++if+view+is+UITextField+{
++++++++textFieldsArray.append(view+as!+UITextField)
++++}
}

textFieldsArray.forEach+{+$0.setBottomBorder()+}|code-block|syntax|javascript|3703115|如果希望获得应用于新数组中的函数的结果，请使用map()代替。|3703116|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This worked for me.

<pre><code>var textFieldsArray = [UITextField]()

for view in self.view.subviews {
 if view is UITextField {
 textFieldsArray.append(view as! UITextField)
 }
}

textFieldsArray.forEach { $0.setBottomBorder() }
</code></pre>

If you want to get the result of the function applied in a new array, use map() instead.

blocks|key|3703118|text|func+getTextFields()+{
++++for+textField+in+view.subviews+where+view+is+UITextField+{
+++++++(textField+as?+UITextField).setBottomBorder()
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3703119|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>func getTextFields() {
 for textField in view.subviews where view is UITextField {
 (textField as? UITextField).setBottomBorder()
 }
}
</code></pre>

blocks|key|788602|text|延期：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|788603|extension+UIView+{
++++func+viewOfType<T:UIView>(type:T.Type,+process:+(_+view:T)+->+Void)
++++{++++++++
++++++++if+let+view+=+self+as?+T
++++++++{
++++++++++++process(view)
++++++++}
++++++++else+{
++++++++++++for+subView+in+subviews
++++++++++++{
++++++++++++++++subView.viewOfType(type:type,+process:process)
++++++++++++}
++++++++}
++++}
}|code-block|syntax|javascript|788604|用法：|788605|view.viewOfType(type:UITextField.self)+{
++++++++view+in

++++++++view.text+=+"123"
}|788606|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

extension:

<pre><code>extension UIView {
 func viewOfType&lt;T:UIView&gt;(type:T.Type, process: (_ view:T) -&gt; Void)
 { 
 if let view = self as? T
 {
 process(view)
 }
 else {
 for subView in subviews
 {
 subView.viewOfType(type:type, process:process)
 }
 }
 }
}
</code></pre>

Usage:

<pre><code>view.viewOfType(type:UITextField.self) {
 view in

 view.text = "123"
}
</code></pre>

blocks|key|3703193|text|Swift：此函数将返回视图中的所有文本字段。无论字段是否存在于任何子视图中。;-)|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3703194|func+getAllTextFields(fromView+view:+UIView)->+[UITextField]+{
++++return+view.subviews.flatMap+{+(view)+->+[UITextField]+in
++++++++if+view+is+UITextField+{
++++++++++++return+[(view+as!+UITextField)]
++++++++}+else+{
++++++++++++return+getAllTextFields(fromView:+view)
++++++++}
++++}.flatMap({$0})
}|code-block|syntax|javascript|3703195|使用：|3703196|getAllTextFields(fromView+:+self.view).forEach{($0.text+=+"Hey+dude!")}|3703197|一般方法：|3703198|func+getAllSubviews<T:+UIView>(fromView+view:+UIView)->+[T]+{
++++return+view.subviews.map+{+(view)+->+[T]+in
++++++++if+let+view+=+view+as?+T+{
++++++++++++return+[view]
++++++++}+else+{
++++++++++++return+getAllSubviews(fromView:+view)
++++++++}
++++}.flatMap({$0})
}|3703199|用法：|3703200|+let+textFields:+[UITextField]+=+getAllSubviews(fromView:+self.view)|3703201|entityMap^0|0|5|0|0|0|3|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|16|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|18|8|@]|D|@]|E|$]]|$1|U|3|V|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|W|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|X|$]]

Swift: This function will return all text-fields in a view. No matter if field exists in any subview. ;-)
<pre><code>func getAllTextFields(fromView view: UIView)-&gt; [UITextField] {
 return view.subviews.flatMap { (view) -&gt; [UITextField] in
 if view is UITextField {
 return [(view as! UITextField)]
 } else {
 return getAllTextFields(fromView: view)
 }
 }.flatMap({$0})
}
</code></pre>
Usage:
<pre><code>getAllTextFields(fromView : self.view).forEach{($0.text = &quot;Hey dude!&quot;)}
</code></pre>
Generic Way:
<pre><code>func getAllSubviews&lt;T: UIView&gt;(fromView view: UIView)-&gt; [T] {
 return view.subviews.map { (view) -&gt; [T] in
 if let view = view as? T {
 return [view]
 } else {
 return getAllSubviews(fromView: view)
 }
 }.flatMap({$0})
}
</code></pre>
Usage:
<pre><code> let textFields: [UITextField] = getAllSubviews(fromView: self.view)
</code></pre>

blocks|key|306160|text|Swift+5|type|unstyled|depth|inlineStyleRanges|entityRanges|data|306161|一个非常简单的答案，您可以轻松理解：-您可以处理所有类型的对象，如UILable、UITextfields、UIButtons、UIView、UIImages。任何种类的物体等。|306162|for+subviews+in+self.view.subviews+{
++++if+subviews+is+UITextField
++++{
++++++++//MARK:+-+if+the+sub+view+is+UITextField+you+can+handle+here
++++++++funtextfieldsetting(textfield:+subviews+as!+UITextField)
++++}
++++if+subviews+is+UIButton
++++{
++++++++//MARK:+-+if+the+sub+view+is+UIButton+you+can+handle+here
++++++++funbuttonsetting(button:+subviews+as!+UIButton)
++++}
++++if+subviews+is+UILabel
++++{
++++++++//MARK:+-+if+the+sub+view+is+UILabel+you+can+handle+here
++++++++//Any+thing+you+can+do+it+with+label+or+textfield+etc
+++++++++++
+++++}
+}|code-block|syntax|javascript|306163|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Swift 5 
A Very simple answer you can understand easyly
: - You can handle all kind of Objects like UILable, UITextfields, UIButtons, UIView, UIImages . any kind of objecs etc.
<pre><code>for subviews in self.view.subviews {
 if subviews is UITextField
 {
 //MARK: - if the sub view is UITextField you can handle here
 funtextfieldsetting(textfield: subviews as! UITextField)
 }
 if subviews is UIButton
 {
 //MARK: - if the sub view is UIButton you can handle here
 funbuttonsetting(button: subviews as! UIButton)
 }
 if subviews is UILabel
 {
 //MARK: - if the sub view is UILabel you can handle here
 //Any thing you can do it with label or textfield etc
 
 }
 }
</code></pre>

I have a view which has more than 15 <code>UITextFields</code>. I have to set bottomBorder(extension) for all the <code>UITextFields</code>. I can set it one by one for all the <code>UITextFields</code> and its working too. I want to set the bottom border for all the <code>UITextFields</code> at once. Here is the code I am trying but it seems like that for loop is not executing. I have even tried it in <code>viewDidLayoutSubViews</code> but for loop not executing there too.

<pre><code> override func viewDidLoad() 
{
 super.viewDidLoad()

 /** setting bottom border of textfield**/

 for case let textField as UITextField in self.view.subviews {
 textField.setBottomBorder()
 }
}
</code></pre>

How to get all the textfields from a view in swift

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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我有一个超过15 UITextFields的视图。我必须为所有的bottomBorder设置UITextFields (扩展名)。我可以为所有的UITextFields和它的工作设置一个一个。我想一次为所有的UITextFields设置底部的边框。下面是我正在尝试的代码，但似乎循环没有执行。我甚至在viewDidLay...

问如何快速地从视图中获取所有文本字段
EN

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问如何快速地从视图中获取所有文本字段EN