IOS: Drag more than one image

I try to make more than one image dragable in my iPhone-App. I have followed a tutorial on YouTube but it doesn´t work.

I create the images this way:

image1=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"button_klein.pn开发者_高级运维g"]];
[image1 setFrame:CGRectMake(touchPoint.x-25,touchPoint.y-25,50,50)]; 
[[self view] addSubview:image1];

image2=[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"button2_klein.png"]];
[image2 setFrame:CGRectMake(135,215,50,50)];
[[self view] addSubview:image2];

And then I tried to make them dragable this way:

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *myTouch = [[event allTouches] anyObject];
    CGPoint location = [myTouch locationInView:self.view];

    if ([myTouch view] == image1) {
        image1.center = location;
        NSLog(@"Test1");
    }
    if ([myTouch view] == image2) {
        image2.center = location;
        NSLog(@"Test2");
    }
}

But it doesn´t work. When I tried to make one image dragable, it worked.

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *myTouch = [[event allTouches] anyObject];
    image1.center = [myTouch locationInView:myTouch.view];
}

Can anybody tell me, where the problem is?

UITouch.view returns the view that's "handling" the touch (more or less the view returned by -hitTest:withEvent:. In this case, it is self, not image1 or image2. (You can check this by breakpointing -touchesMoved:withEvent: and inspecting the touches yourself.)

You'll want to do something like

if ([image1 pointInside:[myTouch locationInView:image1] withEvent:event]) {
  ...
} else if ([image2 pointInside: ...]) {
  ...
}

Note that the touch can be inside both views; I've handled this by choosing image1 by default, but you'll have to decide what's "right".

image1 and image2 are UIImageViews, you can not compare it against a [(UITouch*) view] (which is a UIView). So the comparison never happens, which means the two if conditions are not overridden.

Try putting image1 and image2 inside 2 UIViews named image1View and image2View , and your code would become if ([myTouch view]==image1View) image1View.center=location and so on.