UIControll in UIScrollView not receiving touch events - ios

Question

I use SevenSwitch in my project. I need to add it into a UIScrollView but it seems that the control can not receive touch events when I add it into scroll view.
I tried sub classing scrollview and overriding below code:
- (BOOL)touchesShouldCancelInContentView:(UIView *)view {
return NO;
}
also added:
self.scrollView.delaysContentTouches = NO;
but still can not receive the touch event. How can I stop scrollview from preventing the UIControl from receiving touches?
Update
I have a tap gesture on my scroll view because I want that when user tap the scroll view I call [self.scrollView endEditing:YES] to close the keyboard. When I remove it the seven switch is working with tap.
I add below code to my tap gesture:
tap.cancelsTouchesInView = NO;
and now the sevenswitch is working with tap but there is problems when make the switch on or off with touch tracking.

Answer 1

I have made sample in which i have sevenswitch inside the scrollview and it's working properly
- (void)viewDidLoad {
[super viewDidLoad];
SevenSwitch *mySwitch = [[SevenSwitch alloc] initWithFrame:CGRectZero];
mySwitch.center = CGPointMake(self.view.bounds.size.width * 0.5, self.view.bounds.size.height * 0.5);
[mySwitch addTarget:self action:#selector(switchChanged:) forControlEvents:UIControlEventValueChanged];
//[self.view addSubview:mySwitch];
mySwitch.on = true;
[_cntView addSubview:mySwitch];
SevenSwitch *mySwitch3 = [[SevenSwitch alloc] initWithFrame:CGRectZero];
mySwitch3.center = CGPointMake(self.view.bounds.size.width * 0.5, self.view.bounds.size.height * 0.5 + 70);
[mySwitch3 addTarget:self action:#selector(switchChanged:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:mySwitch3];
//self.view.backgroundColor = [UIColor colorWithRed:0.19f green:0.23f blue:0.33f alpha:1.00f];
mySwitch3.thumbTintColor = [UIColor colorWithRed:0.19f green:0.23f blue:0.33f alpha:1.00f];
mySwitch3.activeColor = [UIColor colorWithRed:0.07f green:0.09f blue:0.11f alpha:1.00f];
mySwitch3.inactiveColor = [UIColor colorWithRed:0.07f green:0.09f blue:0.11f alpha:1.00f];
mySwitch3.onTintColor = [UIColor colorWithRed:0.45f green:0.58f blue:0.67f alpha:1.00f];
mySwitch3.borderColor = [UIColor clearColor];
mySwitch3.shadowColor = [UIColor blackColor];
[_cntView addSubview:mySwitch3];
}
- (void)switchChanged:(SevenSwitch *)sender {
NSLog(#"Changed value to: %#", sender.on ? #"ON" : #"OFF");
}
In which _cntView is the main container view which i have placed inside the scrollview , please check if this working for you
Update
As i mention in the comment i didn't getting what you are trying to say with touch tracking but i have made sample with tap gesture in the scrollview which may help
UIScrollView *scrollview = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width,self.view.frame.size.height)];
[scrollview setContentSize:CGSizeMake(self.view.frame.size.width,700)];
[self.view addSubview:scrollview];
SevenSwitch *mySwitch = [[SevenSwitch alloc] initWithFrame:CGRectZero];
mySwitch.center = CGPointMake(self.view.bounds.size.width * 0.5, self.view.bounds.size.height * 0.5);
[mySwitch addTarget:self action:#selector(switchChanged:) forControlEvents:UIControlEventValueChanged];
//[self.view addSubview:mySwitch];
mySwitch.on = true;
[scrollview addSubview:mySwitch];
SevenSwitch *mySwitch3 = [[SevenSwitch alloc] initWithFrame:CGRectZero];
mySwitch3.center = CGPointMake(self.view.bounds.size.width * 0.5, self.view.bounds.size.height * 0.5 + 70);
[mySwitch3 addTarget:self action:#selector(switchChanged:) forControlEvents:UIControlEventValueChanged];
mySwitch3.thumbTintColor = [UIColor colorWithRed:0.19f green:0.23f blue:0.33f alpha:1.00f];
mySwitch3.activeColor = [UIColor colorWithRed:0.07f green:0.09f blue:0.11f alpha:1.00f];
mySwitch3.inactiveColor = [UIColor colorWithRed:0.07f green:0.09f blue:0.11f alpha:1.00f];
mySwitch3.onTintColor = [UIColor colorWithRed:0.45f green:0.58f blue:0.67f alpha:1.00f];
mySwitch3.borderColor = [UIColor clearColor];
mySwitch3.shadowColor = [UIColor blackColor];
[scrollview addSubview:mySwitch3];
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(actionSingleTap:)];
singleTap.numberOfTapsRequired = 1;
singleTap.cancelsTouchesInView = NO;
[scrollview addGestureRecognizer:singleTap];
}
- (void)actionSingleTap:(UITapGestureRecognizer *)sender {
NSLog(#"Tap");
}
- (void)switchChanged:(SevenSwitch *)sender {
NSLog(#"Changed value to: %#", sender.on ? #"ON" : #"OFF");
}
I have made all the new code programatically and it detects touch events outside the sevenSwitch and also detect touch/tap on the seven switch also.If you want to make it make scrollview in Storyboard and change the programatic scrollview with the storyboard outlet

Answer 2

- (void)viewDidLoad {
[super viewDidLoad];
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(actionSingleTap:)];
singleTap.numberOfTapsRequired = 1;
[self.scrollView addGestureRecognizer:singleTap];
}
- (void)actionSingleTap:(UITapGestureRecognizer *)sender {
CGPoint touchPoint = [sender locationInView:self.scrollView];
NSLog(#"Touch point coordinates are : %f - %f", touchPoint.x , touchPoint.y );
UIView *hitImageView = [self.scrollView hitTest:touchPoint withEvent:nil];
NSLog(#"%#", hitImageView);
switch (hitImageView.tag) {
case 1:
// do something
break;
default:
break;
}
}