如何確定文本在UITextfield中的長度

Question

我有一個UITextField，我想從中確定輸入文本的寬度。

bounds屬性具有文本字段的只是大小，但不是文本的

Answer 1

CGFloat width = [aTextField.text sizeWithFont:aTextField.font].width; 

Answer 2

如果您正在尋找字符數是這個

int textLength = [someTextField.text length] 

如果您正在尋找像素寬度試試這個

CGSize size = [someTextField.text sizeWithFont:someTextField.font]; 
//size.width contains the width 

Answer 3

CGSize size = [myTextField.text sizeWithFont:myTextField.font]; 

文檔瀏覽：http://developer.apple.com/library/ios/documentation/UIKit/Reference/NSString_UIKit_Additions/Reference/Reference.html#//apple_ref/occ/instm/NSString/sizeWithFont：

Answer 4

請問Pixel Width of the text in a UILabel有幫助嗎？

Answer 5

文本字段是代表其爲在比界面生成器ATTAC ......

[的TextField.text長度]

Answer 6

現在sizeWithFont:是在IOS 7.0使用棄用

CGFloat width = [tf.text sizeWithAttributes: @{NSFontAttributeName:tf.font}].width; 

https://developer.apple.com/library/ios/documentation/UIKit/Reference/NSString_UIKit_Additions/#//apple_ref/occ/instm/NSString/sizeWithAttributes：

Answer 7

In Swift 3.0

let size:CGSize = aTextField.attributedText.size() 
let height = size.height 
let width = size.width