touchesbegan在UIImageView中未检测到

Question

嗨 我有5个图像浏览，全部关闭都是导航栏中的子视图。我想从每个imageview获得tapcounts，所以我认为我必须使用touchesBegan方法。但实际上，在每个图像视图中都没有检测到触摸事件。确切地说，touchesBegan在工具栏中检测到。 层次是：

的UIViewController - > UIToolbar

   -> UINavigationBar -> UIImageView 

这是我的代码：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ 
int indexSegment = _docSegmentedControl.selectedSegmentIndex; 


CGRect frameTouch; 

if (indexSegment == 0) { 
    frameTouch = frame; 
}else if (indexSegment == 1) { 
    frameTouch = frame1; 
}else if (indexSegment == 2) { 
    frameTouch = frame2; 
}else if (indexSegment == 3) { 
    frameTouch = frame3; 
}else if (indexSegment == 4) { 
    frameTouch = frame4; 
} 


UITouch *touch = [touches anyObject]; 

//--image 0-- 
CGPoint gestureStartPoint0 = [touch locationInView:imageView]; 
if (CGRectContainsPoint(frame, gestureStartPoint0)) { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView selector:@selector(segmentItemTapped:) object:nil]; 
}else { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView selector:@selector(segmentItemTapped:) object:nil]; 
} 

//--image 1-- 
CGPoint gestureStartPoint1 = [touch locationInView:imageView1]; 
if (CGRectContainsPoint(frame1, gestureStartPoint1)) { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView1 selector:@selector(segmentItemTapped:) object:nil]; 
}else { 
    NSLog(@"false "); 
} 

//--image 2-- 
CGPoint gestureStartPoint2 = [touch locationInView:imageView2]; 
if (CGRectContainsPoint(frame2, gestureStartPoint2)) { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView2 selector:@selector(segmentItemTapped:) object:nil]; 
}else { 
    NSLog(@"false "); 
} 

//--image 3-- 
CGPoint gestureStartPoint3 = [touch locationInView:imageView3]; 
if (CGRectContainsPoint(frame3, gestureStartPoint3)) { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView3 selector:@selector(segmentItemTapped:) object:nil]; 
}else { 
    NSLog(@"false "); 
} 

//--image 4-- 
CGPoint gestureStartPoint4 = [touch locationInView:imageView4]; 
if (CGRectContainsPoint(frame4, gestureStartPoint4)) { 
    [NSObject cancelPreviousPerformRequestsWithTarget:imageView4 selector:@selector(segmentItemTapped:) object:nil]; 
}else { 
    NSLog(@"false "); 
} 

}

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ 
int indexSegment = _docSegmentedControl.selectedSegmentIndex; 
int counter = [_docsegmentmodels count]; 
NSLog(@"index di touches ended : %d", indexSegment); 


CGRect frameTouch; 

if (indexSegment == 0) { 
    frameTouch = frame; 
}else if (indexSegment == 1) { 
    frameTouch = frame1; 
}else if (indexSegment == 2) { 
    frameTouch = frame2; 
}else if (indexSegment == 3) { 
    frameTouch = frame3; 
}else if (indexSegment == 4) { 
    frameTouch = frame4; 
} 


UITouch *touch = [touches anyObject]; 

//--image 0-- 
CGPoint gestureEndPoint0 = [touch locationInView:imageView]; 
if (CGRectContainsPoint(frame, gestureEndPoint0)) { //mencari bagian yg berimpitan dari posisi tap dengan frame segmen 
    if (counter>0){ 
     if (touch.tapCount <= 2) { 
      [self performSelector:@selector(segmentItemTapped:) withObject:nil]; 
     } 
    }else { 
     [NSObject cancelPreviousPerformRequestsWithTarget:navBar selector:@selector(segmentItemTapped:) object:nil]; 
    } 
}else { 
    NSLog(@"CGRectContaintsPOint0 : %d", CGRectContainsPoint(frame, gestureEndPoint0)); 
} 

//--image 1-- 
CGPoint gestureEndPoint1 = [touch locationInView:imageView1]; 
if (CGRectContainsPoint(frame1, gestureEndPoint1)) { //mencari bagian yg berimpitan dari posisi tap dengan frame segmen 
    if (counter>0){ 
     if (touch.tapCount <= 2) { 
      [self performSelector:@selector(segmentItemTapped:) withObject:nil]; 
     } 
    }else { 
     [NSObject cancelPreviousPerformRequestsWithTarget:navBar selector:@selector(segmentItemTapped:) object:nil]; 
    } 
}else { 
    NSLog(@"CGRectContaintsPOint1 : %d", CGRectContainsPoint(frame1, gestureEndPoint1)); 
} 

//--image 2-- 
CGPoint gestureEndPoint2 = [touch locationInView:imageView2]; 
if (CGRectContainsPoint(frame2, gestureEndPoint2)) { //mencari bagian yg berimpitan dari posisi tap dengan frame segmen 
    if (counter>0){ 
     if (touch.tapCount <= 2) { 
      [self performSelector:@selector(segmentItemTapped:) withObject:nil]; 
     } 
    }else { 
     [NSObject cancelPreviousPerformRequestsWithTarget:navBar selector:@selector(segmentItemTapped:) object:nil]; 
    } 
}else { 
    NSLog(@"CGRectContaintsPOint2 : %d", CGRectContainsPoint(frame2, gestureEndPoint2)); 
} 

//--image 3-- 
CGPoint gestureEndPoint3 = [touch locationInView:imageView3]; 
if (CGRectContainsPoint(frame3, gestureEndPoint3)) { //mencari bagian yg berimpitan dari posisi tap dengan frame segmen 
    if (counter>0){ 
     if (touch.tapCount <= 2) { 
      [self performSelector:@selector(segmentItemTapped:) withObject:nil]; 
     } 
    }else { 
     [NSObject cancelPreviousPerformRequestsWithTarget:navBar selector:@selector(segmentItemTapped:) object:nil]; 
    } 
}else { 
    NSLog(@"CGRectContaintsPOint3 : %d", CGRectContainsPoint(frame3, gestureEndPoint3)); 
} 

//--image 4-- 
CGPoint gestureEndPoint4 = [touch locationInView:imageView4]; 
if (CGRectContainsPoint(frame4, gestureEndPoint4)) { //mencari bagian yg berimpitan dari posisi tap dengan frame segmen 
    if (counter>0){ 
     if (touch.tapCount <= 2) { 
      [self performSelector:@selector(segmentItemTapped:) withObject:nil]; 
     } 
    }else { 
     [NSObject cancelPreviousPerformRequestsWithTarget:navBar selector:@selector(segmentItemTapped:) object:nil]; 
    } 
}else { 
    NSLog(@"CGRectContaintsPOint4 : %d", CGRectContainsPoint(frame4, gestureEndPoint4)); 
} 

}

有这么mething我必须定义连接touchesbegan到imageviews？ 请帮我请 关于 -Risma-

Answer 1

哦，老兄。你写了很多重复的代码。这将是可怕的时刻，当你需要改变某些事情时。

仅当userInteractionEnabled == YES;而且你总是可以使用自己的类（UIImageView的子类）来处理和处理触摸。