"Drag down to update" functionality?

Solar2D General Questions/Discussion
#1

I was wondering if anyone had had any code snippets or anything for this before I started trying to make my own? [import]uid: 143007 topic_id: 27985 reply_id: 327985[/import]

#2

I haven’t seen anything like this around unfortunately, sorry :frowning: [import]uid: 52491 topic_id: 27985 reply_id: 113332[/import]

#3

Well, for anyone discovering this thread, here is a code snippet that should help. You just need to add a listener to the scrollview, in my case, the function below, dragUpdate, is that scrollView listener.

local updating = false;  
local function dragUpdate(event)  
 local s = event.target -- reference to scrollView object  
  
 if(event.type == 'contentTouch')then  
 local dragX, dragY = s:getContentPosition();  
 if(dragY \> display.contentHeight \* .1)then  
 if(updating == false)then  
 updating = true;  
 print("Dragged down, when release, should upate");  
 end  
 else  
 if(updating == true)then  
 updating = false;  
 print("Dragged back up, when released, should --NOT-- update");  
 end  
 end  
 elseif(event.type == 'endedScroll')then  
 if(updating == true)then  
 print('finger was released, and we should be updating');  
 end  
 end   
end

So, in this case, if the menu is dragged down more than 10% of the screen’s height, it will trigger the print.

Cheers everyone! [import]uid: 143007 topic_id: 27985 reply_id: 113364[/import]

#4

Terrific! Thanks for sharing this - may also be worth putting in the code exchange if you felt like it :slight_smile: [import]uid: 52491 topic_id: 27985 reply_id: 113455[/import]

#5

So where is this contentTouch and endedScroll documented?
Also, is this for the ‘widget’ scrollview? or for the scrollView.lua? [import]uid: 5942 topic_id: 27985 reply_id: 119638[/import]

#6

So where is this contentTouch and endedScroll documented?
Also, is this for the ‘widget’ scrollview? or for the scrollView.lua? [import]uid: 5942 topic_id: 27985 reply_id: 119638[/import]