How to get the lowest View in touchesMoved:? - ios

Question

I have 3 UIViews: needToDragView, its superView, and self.view. When I use touchesMoved: to drag only my needToDragView(lowest in 3Views). But it can drag all 3View. How to detect the lowest UIView?
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
UIView *dragView = [[touches anyObject] view];
CGPoint newCenter = [[touches anyObject] locationInView:dragView.superview];
dragView.center = newCenter;
}

Answer 1

Try this:
Make sure you set UserInteractionEnabled = YES; for needToDragView.
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
{
UITouch *touch = [touches anyObject];
if ([touch view]== needToDragView) {
// Drag Image Here
}
else {
// NSLog("Wrong");
}
}
UPDATE
Instead of this, you can also use UIPanGestureRecognizer like this:
UIPanGestureRecognizer pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(function:)];
[pan setMinimumNumberOfTouches:1];
[pan setMaximumNumberOfTouches:2];
[needsToDragView addGestureRecognizer:pan];
[needsToDragView setUserInteractionEnabled:YES];
- (void)function:(UIPanGestureRecognizer *)recognizer
{
NSLog(#"Moving View");
mainView= recognizer.view;
CGPoint translatedPoint = [recognizer translationInView:self.view];
if([recognizer state] == UIGestureRecognizerStateBegan)
{
firstX = [mainView center].x;
firstY = [mainView center].y;
}
translatedPoint = CGPointMake(firstX+translatedPoint.x, firstY+translatedPoint.y);
[mainView setCenter:translatedPoint];
}