Question

In my application am having CustomScrollView subclass of UIScrollView (I am not using UIView here) in which I have 10 images at bottom and I want to drag any image from bottom to anywhere in scrollview by making copy of it and not deleting original at bottom. BY using touchEnd , touchMoved and touchBegan functions

Answer 1

in your touch begin method you will get touch points and will be able to get imageView where touch begin. Now if you want to show moving of image view do following:

• in touch begin get the UIImageView object

• create a new UIImageView object with same properties.

  UIImageView *newImageView = [[UIImageView alloc] initWithFrame:myCurrentImageView.frame];
  newImageView.image = myCurrentImageView.image;
  //other properties if needed
  [myscrlview addSubView:newImageView];
  

  This will add image in your scroll view at same place your previous image view was.

• In touch move you will get your touch points

• set your any of UIImageView object lets say

  newImageView.center = touchPoint; 
  

  this will show your image moving

• In thouchEnd do the same set your newImageView center at touch end position.

Make sure that you set your UIScrollView properties like content size and every thing as well while moving new image may have origin negative in case your center set to x=0, y=0.

This will keep the previous image as it is in scroll view and create a copy of new that image while moving.

Hope this is what you looking for. If not let me know.

Note: Code may have errors as I just typed here not in xcode but you can understand what to do