Question

我有2个视图：带标签1的视图和带标签2的视图。每个视图都有两个手势识别器。

CGRect tempRect=CGRectMake(0, 0, 100, 100);


for (int i=1; i<=2; i++) {
    UIView *tempView=[[UIView alloc] initWithFrame:tempRect];
    UIImageView *tempImageView=[[UIImageView alloc]initWithFrame:tempRect];
    tempImageView.image=[UIImage imageNamed:[NSString stringWithFormat:@"%@%d%@",@"image_",i,@".png"]];
    UISwipeGestureRecognizer *tempRecognizer = [[UISwipeGestureRecognizer alloc] init];
    [tempRecognizer performSelector:@selector(SwipeRight:) withObject:[NSNumber numberWithInt:i]];
    [tempRecognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
    [tempView addGestureRecognizer:tempRecognizer];
    [tempView addSubview:tempImageView];
    tempView.tag=i;
    [self.view addSubview:tempView];
}

我有一个方法：SwipeRight管理滑动....

-(void)SwipeRight:(NSNumber*)MyTag{

    int MyProgr = [MyTag intValue];

    }

传递代码的正确方法是什么？我的代码出错了：

[UISwipeGestureRecognizer SwipeRight:]: unrecognized selector sent to instance...

Answer 1

在

之前设置视图标记

[tempView setTag:i];
 UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(callYourMethod:)];
            swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
            [tempView addGestureRecognizer:swipeRight];


- (void)callYourMethod:(UISwipeGestureRecognizer *)recognizer
{
    if (recognizer.direction == UISwipeGestureRecognizerDirectionRight)
    {
        int tagValue = recognizer.view.tag;
        NSLog(@"Down");
    }
}

Answer 2

请尝试使用此

-(void) SwipeRight:(UISwipeGestureRecognizer *)recognizer 
{
     if (recognizer.direction == UISwipeGestureRecognizerDirectionRight)
     {
           int tag = recognizer.view.tag;
     }
}

检测手势来自哪个识别器

2 个答案: