Adding a UIGestureRecognizer to a Sparrow element

melakamc

Is it possible to add a UIGestureRecognizer on to Sparrow Elements such as; SPMovieClip, SPImage, etc..?

Daniel

No, that's not possible, sorry! You have to detect such gestures manually through touch events.

melakamc

I'm trying with touch events like this;

[_movie addEventListener:@selector(swiped:) atObject:self
                     forType:SP_EVENT_TYPE_TOUCH];

But this -(void)swiped; method is getting called several times.

I need to detect a swipe gesture done upwards.

I tried this

-(void)swiped:(SPTouchEvent *)event{

NSArray *touches = [[event touchesWithTarget:_movie andPhase:SPTouchPhaseMoved] allObjects];

    if([touches count] > 0){
        SPTouch *touch = [touches objectAtIndex:0];
        SPPoint *currentPos = [touch locationInSpace:_movie.parent];
        SPPoint *previousPos = [touch previousLocationInSpace:_movie.parent];

        if((previousPos.y - currentPos.y) > 10){
            NSLog(@"JUMP");
        }
       NSLog(@"\nPRe: %f -x | %f -y ",previousPos.x,previousPos.y);
       NSLog(@"\nCurr: %f -x | %f -y ",currentPos.x,currentPos.y);
    }

}

But, "JUMP" is getting printed several times and I cant do some logic there.

Please help

Trundle

Not sure if this is going to help since I am kind of new sparrow Objective C ... but if I understand correctly you just need some logic to prevent it from calling Jump more than once.

You could do something like (pardon if my syntax is messed up)

if((previousPos.y - currentPos.y) > 10 && isJumping == TRUE){
isJumping = TRUE;
NSLog(@"JUMP");
}

where isJumping is a BOOL and you would then set it to false when you end the touch.