Question

我正在使用各种按钮，我已经从Xib文件设置了它的标签。并将所有按钮连接到单个方法-(void) note:(id)sender。

现在我想要检索标签号。我可以看到点击了哪个按钮

-(void) note:(id)sender

{

    NotesClass *note = [[NotesClass alloc] initWithNibName:@"NotesClass" bundle:nil];
    note.notetag = sender;
    NSLog(@"%@",note.notetag);
    [self.navigationController pushViewController:note animated:YES];

}

打印那个NSlog时我得到这个输出：

<UIButton: 0x4e70350; frame = (227 119; 20 18); opaque = NO; autoresize = RM+BM; tag = 1; layer = <CALayer: 0x4e70480>>

任何人都可以帮助我。

Answer 1

尝试以下代码，它一定会帮助你

UIButton *button = (UIButton *)sender;
    NSInteger bTag = button.tag;

Answer 2

您可以使用

获取标记

sender.tag

Answer 3

(void) note:(id)sender

{

    NotesClass *note = [[NotesClass alloc] initWithNibName:@"NotesClass" bundle:nil];
    note.notetag = [sender tag];
    NSLog(@"%d",note.notetag);
    [self.navigationController pushViewController:note animated:YES];

}

Answer 4

-(void) note:(id)sender

{

NotesClass *note = [[NotesClass alloc] initWithNibName:@"NotesClass" bundle:nil];
note.notetag = [sender tag];
NSLog(@"%d",note.notetag);
//Another option is to use

UIButton *button = (UIButton *)sender;
NSLog(@"%d",button.tag);
[self.navigationController pushViewController:note animated:YES];

}

%d而非%@ tag属于int类型

Answer 5

in .H file write below code

@interface tagViewController : UIViewController {

    UIButton *btn1;
}
@property(nonatomic,retain)IBOutlet UIButton *btn1;
-(IBAction)btnclicked:(id)sender;
@end

and in .M file write below code

-(IBAction)btnclicked:(id)sender
{
    btn1 = (UIButton *)sender;

    NSLog(@"You Press Button No %d",btn1.tag);

}

Don't forgate maping of your button Suppose i have three button and i set it tag 1,2,3 and then after mapping all of them with  btnclicked: in TouchUp Inside Event and then after run it it's working...

如何获取UIButton的标签号

5 个答案: