Removing a group and what's inside it.

Wiler_Jr · June 28, 2013, 1:35pm

local localGroup = display.newGroup(); local image = display.newImage("some\_image.png"); image.x, image.y = display.contentWidth/2, display.contentHeight/2; localGroup:insert(image); timer.performWithDelay(500, function() if(image)then &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;print("Not nil."); &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; else &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;print("Nil."); &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; end &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;end, -1); local function deleteImage(e) &nbsp;&nbsp; &nbsp;if(e.phase == "ended")then &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;localGroup:removeSelf(); &nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;localGroup = nil; &nbsp;&nbsp; &nbsp;end end Runtime:addEventListener("touch", deleteImage); &nbsp;

It’s said in some tutorials that an image inserted in a certain group is deleted when I remove that group. That’s not happening in the code above…

What’s wrong?

Thanks.

mpappas · June 28, 2013, 2:51pm

The image is deleted from the group (and removed from the display), but the image object is not “deleted” from memory. It is still there, and can be inserted into a different group if you want.

To delete it from memory you should set it to nil manually (after removing it from any display groups).

mpappas · June 28, 2013, 2:51pm

The image is deleted from the group (and removed from the display), but the image object is not “deleted” from memory. It is still there, and can be inserted into a different group if you want.

To delete it from memory you should set it to nil manually (after removing it from any display groups).