touch action in scroll view

My project based on touch event in scrollview. im using the following code but it shows an error. gesture undeclared. how to declare gesture please tell me,

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapGestureCaptured:)];
[scrollView addGestureRecognizer:sing开发者_运维问答leTap];  


- (void)singleTapGestureCaptured:(UITapGestureRecognizer *)touch
  { 
    CGPoint touchPoint=[gesture locationInView:scrollView];
  }

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Sorry I didn't look at your code carefully

CGPoint touchPoint=[touch locationInView:scrollView];

use this.

You dont have any variable named gesture.

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You need to declare an UITouch object for that.

UITouch *gesture;

Beacause you can pass the locationInView method only to UITouch class objects.Otherwise it will throw an error.