blocks|key|652597|text|试着这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|652598|+@IBOutlet+weak+var+snippet:+UITextView!

+var+selectedDictionary+=+["firstKey":+"firstValue",+"secondKey":+"secondValue"]

+var+selectedArray+=+[String]+(selectedDictionary.values)
+var+numberInArray+=+selectedArray.count
+for+var+i+=+0;+i+<+selectedArray.count;+i%2B%2B+{
+++++println(selectedArray[i])
+++++snippet.text+%2B=+selectedArray[i]
+}|code-block|syntax|javascript|652599|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|$]]

Just try this:

<pre><code> @IBOutlet weak var snippet: UITextView!

 var selectedDictionary = ["firstKey": "firstValue", "secondKey": "secondValue"]

 var selectedArray = [String] (selectedDictionary.values)
 var numberInArray = selectedArray.count
 for var i = 0; i &lt; selectedArray.count; i++ {
 println(selectedArray[i])
 snippet.text += selectedArray[i]
 }
</code></pre>

blocks|key|2572813|text|不能通过迭代每个数组的值来更新TextView+text属性，因为每次selectedArray循环找到一个新值时，都只会显示TextView中的最后一个值。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2572814|相反，您应该尝试使用所有文本的值构建一个字符串，然后更新视图的selectedArray属性。|2572815|您可以这样做：|2572816|++@IBOutlet+weak+var+snippet:+UITextView!
++var+selectedDictionary+=+["firstKey":+"firstValue",+"secondKey":+"secondValue"]

++override+func+viewDidLoad()+{
++++super.viewDidLoad()
++++//+Do+any+additional+setup+after+loading+the+view,+typically+from+a+nib.

++++var+text+=+""
++++var+selectedArray+=+[String](selectedDictionary.values)
++++for+index+in+0..<selectedArray.count+{
++++++text+%2B=+"\(selectedArray[index])\n"
++++}

++++snippet.text+=+text
++}|code-block|syntax|javascript|2572817|entityMap^0|Z|D|0|V|D|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|X|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

You can't iterate on each <code>selectedArray</code> value to update your TextView text property because every time the for loop finds a new value, this will show you only the last value in the Array.

Instead, you should try to build a String with all <code>selectedArray</code>'s values and then update the view text property.

You can do this:

<pre><code> @IBOutlet weak var snippet: UITextView!
 var selectedDictionary = ["firstKey": "firstValue", "secondKey": "secondValue"]

 override func viewDidLoad() {
 super.viewDidLoad()
 // Do any additional setup after loading the view, typically from a nib.

 var text = ""
 var selectedArray = [String](selectedDictionary.values)
 for index in 0..&lt;selectedArray.count {
 text += "\(selectedArray[index])\n"
 }

 snippet.text = text
 }
</code></pre>

blocks|key|3899960|text|您可以为所有值创建一个String，然后遍历字典并将每个值附加到创建的字符串，在循环完成后，您可以更新UITextView。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3899961|weak+var+snippet:+UITextView!
var+selectedDictionary+=+["firstKey":+"firstValue",+"secondKey":+"secondValue"]
var+allValues:+String+=+""

for+value+in+selectedDictionary.values{
+++if+let+v+=+value+as+String?{
++++++allValues+%2B=+v
+++}
}

//set+the+value+of+your+textview+to+'allValues'|code-block|syntax|javascript|3899962|entityMap^0|B|6|1F|A|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You could create a <code>String</code> for all values and then loop through your dictionary and append each value to the created String, after the loop is finished, you can update your <code>UITextView</code>.

<pre><code>weak var snippet: UITextView!
var selectedDictionary = ["firstKey": "firstValue", "secondKey": "secondValue"]
var allValues: String = ""

for value in selectedDictionary.values{
 if let v = value as String?{
 allValues += v
 }
}

//set the value of your textview to 'allValues'
</code></pre>

blocks|key|2565263|text|如果您希望它与日志中的显示方式相同，请使用以下命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2565264|@IBOutlet+weak+var+snippet:+UITextView!

var+selectedDictionary+=+["firstKey":+"firstValue",+"secondKey":+"secondValue"]

snippet.text+=+String(format:"%25@",+selectedDictionary)|code-block|syntax|javascript|2565265|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|$]]

If you want it to appear identically to how it appears in the logs, use this:

<pre><code>@IBOutlet weak var snippet: UITextView!

var selectedDictionary = ["firstKey": "firstValue", "secondKey": "secondValue"]

snippet.text = String(format:"%@", selectedDictionary)
</code></pre>

I create a dictionary that converts the values to an array. Printing the array to the log prints each value entry as each index in the array. Setting the <code>textview.text</code> to the same thing (each index in the array) prints only the first value.

<pre><code> @IBOutlet weak var snippet: UITextView!

 var selectedDictionary = ["firstKey": "firstValue", "secondKey": "secondValue"]

 var selectedArray = [String] (selectedDictionary.values)
 var numberInArray = selectedArray.count
 for var i = 0; i &lt; selectedArray.count; i++ {
 println(selectedArray[i])
 snippet.text = selectedArray[i]
</code></pre>

set text view to view all elements in an Array

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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我创建了一个将值转换为数组的字典。将数组打印到日志中会将每个值条目打印为数组中的每个索引。将textview.text设置为相同的值(数组中的每个索引)仅打印第一个值。 @IBOutlet weak var snippet: UITextView! var selectedDictionary = ["firstKey...

问设置文本视图以查看数组中的所有元素
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问设置文本视图以查看数组中的所有元素EN