如何将字符串作为UIButton的标记传递 [英] How to pass a string as a tag of UIButton

问题描述

标记值为整数：

UIButton *button=[UIButton buttonWithType:UIButtonTypeCustom];
[button setTitle:addressField forState:UIControlStateNormal];
[button addTarget:self action:@selector(pickTheQuiz:) forControlEvents:UIControlEventTouchUpInside];
button.tag=1;//or what other integer value, i need to put a string value

在接收方法中：

-(void)pickTheQuiz:(id)sender{           
    NSLog(@"The part number is:%i",((UIControl*)sender).tag);//i need to receive a string value instead of numeric value
}

推荐答案

您可以将标签的整数值转换为NSString：

You can convert the integer value of a tag to a NSString with:

[NSString stringWithFormat:@"%i", ((UIControl*)sender).tag];

或者，如果你真的需要一个字符串作为UI对象的标识符，只需将其子类化并添加一个属性如：

Or, if you really need a string as identifier for an UI object, just subclass it and add a property like:

@property (nonatomic, strong) NSString *stringID;

然后使用它而不是使用tag属性。

And then use it instead of use the tag property.

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