[TIMOB-8554] MobileWeb: TableView scroll event doesn't return correct information

GitHub Issue	n/a
Type	Bug
Priority	Medium
Status	Closed
Resolution	Fixed
Resolution Date	2012-06-14T15:18:39.000+0000
Affected Version/s	Release 2.0.0
Fix Version/s	Release 2.1.0, Sprint 2012-12 MW
Components	MobileWeb
Labels	parity
Reporter	Arthur Evans
Assignee	Chris Barber
Created	2012-04-05T12:36:21.000+0000
Updated	2017-03-09T01:15:17.000+0000

Description

Logged output from the TableView 'scroll' event and noted the following: - contentOffset has an x value, but no y value--not very useful, since the tableview only scrolls vertically. - totalItemCount returns 1 instead of the total number of rows (31). - visibleItemCount returns 0 (?!) which just ain't right.

[INFO] Got event type[scroll]: {
  "contentOffset": {
    "x": 0
  },
  "contentSize": {
    "width": 1329,
    "height": 1583
  },
  "size": {
    "width": 1329,
    "height": 743
  },
  "totalItemCount": 1,
  "visibleItemCount": 0,
  "x": 507,
  "y": 69
}
index.html:10432[INFO] Got event type[scroll]: {
  "contentOffset": {
    "x": 0
  },
  "contentSize": {
    "width": 1329,
    "height": 1583
  },
  "size": {
    "width": 1329,
    "height": 743
  },
  "totalItemCount": 1,
  "visibleItemCount": 0,
  "x": 507,
  "y": 57
}

Comments

Jeff English 2012-05-30

Not having the correct values (especially contentOffset.y) makes it difficult to implement "infinite-scrolling" / "pull-to-load" logic. I'm seeing a key for contentOffset.y but it's value is undefined (running on Chrome browser). Also note that the contentOffset.y value is correct for the 'scrollEnd' event, just not the 'scroll' event.
Bryan Hughes 2012-06-12

Pull Request: https://github.com/appcelerator/titanium_mobile/pull/2376
Lee Morris 2017-03-09

Closing ticket as fixed.

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