传递参数给UITapGestureRecognizer
我已经创build了dynamic的UIimage视图和UITapGestureRecognizer来查看它的样子
UIImageView *image = [[UIImageView alloc ] initWithFrame:CGRectMake(x, 0, 200, 150)]; NSString *ImageURL = [str objectForKey:@"imageLink"]; NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:ImageURL]]; image.image = [UIImage imageWithData:imageData]; UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDetected:)]; singleTap.numberOfTapsRequired = 1; image.userInteractionEnabled = YES; [image addGestureRecognizer:singleTap]; [documentory addSubview:image];
和我这样的行动方法
-(void)tapDetected:(UIGestureRecognizer *)recognizer{ NSLog(@"single Tap on imageview"); }
我想通过一个string参数tapDetected方法任何人都可以告诉我如何做到这一点非常感谢你
您可以扩展一个UITapGestureRecognizer来保存更多的数据：
// MYTapGestureRecognizer.h @interface MYTapGestureRecognizer : UITapGestureRecognizer @property (nonatomic, strong) NSString *data; @end // MYTapGestureRecognizer.m @implementation MYTapGestureRecognizer @end // ===================== .... MYTapGestureRecognizer *singleTap = [[MYTapGestureRecognizer alloc] initWithTarget:self action:@selector(tapDetected:)]; singleTap.data = @"Hello"; ..... // ==================== -(void)tapDetected:(UITapGestureRecognizer *)tapRecognizer { MYTapGestureRecognizer *tap = (MYTapGestureRecognizer *)tapRecognizer; NSLog(@"data : %@", tap.data); }
通过发件人，
- (void)tapDetected:(UIGestureRecognizer *)sender { NSLog(@"%@", sender.view); // imageview }