如何在按下UIButton时获取UIButton的标题 [英] How to get the title for a UIButton when it is pressed

问题描述

我正试图在以下代码中发现UIButton标题是针对哪个UIButton被按下的。

I'm trying to discover what the UIButton title is for which UIButton was pressed in the following code.

在viewDidLoad上按钮标题输出到控制台使用：

on viewDidLoad the button title is outputted to the console using:

        NSLog(@"The button title is %@ ", btn.titleLabel.text);

我想在按下按钮时获得此标题。

I would like to get this title when a button is pressed instead.

感谢您的帮助

:)

// Create buttons for the sliding category menu.
        NSMutableArray* buttonArray = [NSMutableArray array];
        NSArray * myImages = [NSArray arrayWithObjects:@"category-cafe-unsel.png", @"category-food-unsel.png", @"category-clothing-unsel.png", @"category-health-unsel.png", @"category-tech-unsel_phone.png" , @"category-tech2-unsel.png", @"catefory-theatre-unsel.png", @"category-travel-unsel.png", nil];

        // only create the amount of buttons based on the image array count
        for(int i = 0;i < [myImages count]; i++)
        {
            // Custom UIButton

            btn = [UIButton buttonWithType:UIButtonTypeCustom];

            [btn setFrame:CGRectMake(0.0f, 20.0f, 52.0f, 52.0f)];
            [btn setTitle:[NSString stringWithFormat:@"Button %d", i] forState:UIControlStateNormal];
            [btn setImage:[UIImage imageNamed:[myImages objectAtIndex:i]] forState:UIControlStateNormal];

            NSLog(@"The button title is %@ ", btn.titleLabel.text);

            [btn addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
            [buttonArray addObject:btn];

            NSLog(@"Button tag is: %d",btn.tag);

        }

推荐答案

在你的操作：

- (void) buttonPressed:(UIButton*) sender {
    NSLog(@"The button title is %@",sender.titleLabel.text);
}

修改：
或评论为Iulian： sender.currentTitle ，但它可能是 nil ，请参阅Michael的评论。

Edit: Or as commented Iulian: sender.currentTitle, but it may be nil, see the comments of Michael.

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