How to detect touchesBegan, touchesMoved, touchesEnded events from another class - ios

Question

I need to use touch events but i am trying to detect it from another class, so i will call back to my main class if touched or moved etc.
I am calling init method in "classTouchEvents" firstly from my main class like that
objectTouchEvents=[[classTouchEvents alloc]initWith:self.view];
here is initWith method of "classTouchEvents"
- (id)initWith:(UIView *)selfView
{
self = [super init];
if (self) {
NSLog(#"here");
view=[[UIView alloc]init];
view=selfView;
// Custom initialization
}
return self;
}
and i get "here" log so i guess it is working but i cant detect if view get touch or anything. Here is my touch events in classTouchEvents
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"touchBegan");
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"touchMoved");
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
NSLog(#"touchEnded");
}
But i cant get any log about touches. I need some help.
Thanks in advance.

Answer 1

I'd use delegation:
TouchDelegate.h:
#import <UIKit/UIKit.h>
#protocol TouchDelegate <NSObject>
#optional
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
#end
And then in your view (that actually receives the touch event), create a touchDelegate property (or just delegate if there is unlikely to be others):
#import "TouchDelegate.h"
#interface MyView : UIView
#property (weak, nonatomic) id<TouchDelegate> touchDelegate;
...
#end
and then delegate as normal:
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
if ([_touchDelegate respondsToSelector:#selector(touchesBegan:withEvent:)]) {
[_touchDelegate touchesBegain:touches withEvent:event];
}
}
// etc.

Answer 2

I would implement a custom subclass of UIView with a delegate.
#protocol TouchEventsDelegate <NSObject>
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event inView:(UIView *)view;
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event inView:(UIView *)view;
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event inView:(UIView *)view;
#end
#property (weak, nonatomic) id<TouchEventsDelegate> delegate;
Implement these delegate methods in your ClassTouchEvents.
Implement the touch events method in your custom view and call the delegate.
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if (self.delegate && [self.delegate respondsToSelector:#selector(touchesBegan:withEventinView)]) {
[self.delegate touchesBegan:touches withEvent:event inView:self];
}
}