ios 按下时如何获取 UIButton 的标题
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How to get the title for a UIButton when it is pressed
提问by hanumanDev
I'm trying to discover what the UIButton title is for which UIButton was pressed in the following code.
我试图找出在以下代码中按下 UIButton 的 UIButton 标题是什么。
on viewDidLoad the button title is outputted to the console using:
在 viewDidLoad 按钮标题输出到控制台使用：
NSLog(@"The button title is %@ ", btn.titleLabel.text);
I would like to get this title when a button is pressed instead.
我想在按下按钮时获得此标题。
thanks for any help
谢谢你的帮助
:)
:)
// 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);
}
回答by Zaphod
In your action:
在你的行动中：
- (void) buttonPressed:(UIButton*) sender {
NSLog(@"The button title is %@",sender.titleLabel.text);
}
Edit:
Or as commented Iulian: sender.currentTitle, but it may be nil, see the comments of Michael.
编辑：或如 Iulian: 评论的那样sender.currentTitle，但可能是nil，请参阅迈克尔的评论。
回答by Fogmeister
You should have the function somewhere...
你应该在某个地方有这个功能......
- (void)buttonPressed:(id)sender
Just put this inside it...
把这个放进去就行了...
- (void)buttonPressed:(id)sender
{
UIButton *someButton = (UIButton*)sender;
NSLog(@"The button title is %@ ", [someButton titleForState:UIControlStateNormal]);
//You should also be able to use...
//NSLog(@"The button title is %@ ", someButton.titleLabel.text);
}
回答by Fogmeister
NSString * strButtonTitle = [btnButton titleForState:state];
where state:
其中状态：
UIControlStateNormal,
UIControlStateHighlighted,
UIControlStateDisabled,
UIControlStateSelected,
UIControlStateFocused,
UIControlStateApplication,
UIControlStateReserved
For your requirement
满足您的要求
NSString * strButtonTitle = [btnButton titleForState:UIControlStateSelected];
This is the method for getting the title for different states of button at any given time in the program...But based on the question answer from Zaphodis good.
这是在程序中的任何给定时间获取按钮不同状态的标题的方法......但基于Zaphod的问题答案是好的。
