{
	"id": "149850",
	"key": "TIMOB-20030",
	"fields": {
		"issuetype": {
			"id": "1",
			"description": "A problem which impairs or prevents the functions of the product.",
			"name": "Bug",
			"subtask": false
		},
		"project": {
			"id": "10153",
			"key": "TIMOB",
			"name": "Titanium SDK/CLI",
			"projectCategory": {
				"id": "10100",
				"description": "Titanium and related SDKs used in application development",
				"name": "Client"
			}
		},
		"fixVersions": [],
		"resolution": {
			"id": "1",
			"description": "A fix for this issue is checked into the tree and tested.",
			"name": "Fixed"
		},
		"resolutiondate": "2015-12-10T06:02:14.000+0000",
		"created": "2015-07-22T13:39:29.000+0000",
		"priority": {
			"name": "High",
			"id": "2"
		},
		"labels": [
			"Community"
		],
		"versions": [],
		"issuelinks": [],
		"assignee": {
			"name": "apetkov",
			"key": "apetkov",
			"displayName": "Angel Petkov",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"updated": "2017-03-22T22:44:24.000+0000",
		"status": {
			"description": "The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.",
			"name": "Closed",
			"id": "6",
			"statusCategory": {
				"id": 3,
				"key": "done",
				"colorName": "green",
				"name": "Done"
			}
		},
		"components": [
			{
				"id": "10206",
				"name": "iOS",
				"description": "iOS Platform"
			}
		],
		"description": "h5. Current behavior\r\nWith\r\n{code}\r\nlistView.addEventListener('scrollstart', this.myCallback);\r\n{code}\r\nyou can register an event listener. But there is no check if the listener is already registered.\r\n\r\nSo if you do something like this:\r\n{code}\r\nfunction attach() {\r\n    listView.addEventListener('scrollstart', this.myCallback);\r\n}\r\nattach();\r\n\r\n//\r\n// Lots of code or loop or async callback between \r\n//\r\nattach();\r\n\r\n{code}\r\n\r\nyou habe a second registered callback. You have todo something like this to unregister:\r\n{code}\r\nlistView.removeEventListener('scrollstart', this.myCallback);\r\nlistView.removeEventListener('scrollstart', this.myCallback);\r\n{code}\r\n\r\nIts difficult to debug problems around that if you overlooked the second call of addEventListener.\r\n\r\nh5. Expected\r\n- The second listener is not registered\r\n- (optional) Warning or notice that there is already a listener",
		"attachment": [],
		"flagged": false,
		"summary": "iOS: Repeated call of listView.addEventListener('scrollstart') should only result in 1 listener",
		"creator": {
			"name": "c.waldmann@yatego.com",
			"key": "c.waldmann@yatego.com",
			"displayName": "Christian Waldmann",
			"active": true,
			"timeZone": "Europe/Berlin"
		},
		"subtasks": [],
		"reporter": {
			"name": "c.waldmann@yatego.com",
			"key": "c.waldmann@yatego.com",
			"displayName": "Christian Waldmann",
			"active": true,
			"timeZone": "Europe/Berlin"
		},
		"environment": "4.1",
		"closedSprints": [
			{
				"id": 536,
				"state": "closed",
				"name": "2015 Sprint 25 SDK",
				"startDate": "2015-12-05T01:30:40.415Z",
				"endDate": "2015-12-19T01:30:00.000Z",
				"completeDate": "2015-12-29T03:19:42.127Z",
				"originBoardId": 114
			}
		],
		"comment": {
			"comments": [
				{
					"id": "372207",
					"author": {
						"name": "apetkov",
						"key": "apetkov",
						"displayName": "Angel Petkov",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"body": "PR pending : https://github.com/appcelerator/titanium_mobile/pull/7548.  The Hello message should only be displayed ones upon scrollEnd regardless of how many eventListeners are added. \r\n{code} \r\nvar win = Ti.UI.createWindow({\r\n    backgroundColor : 'blue',\r\n    title           : 'Main Window'\r\n});\r\n\r\nvar listView = Ti.UI.createListView();\r\n\r\n function myFunction() {\r\n  Ti.API.info(\"Hello\");\r\n }\r\n\r\nvar itemsSection = Ti.UI.createListSection({ headerTitle: 'Items'});\r\nvar itemData = [\r\n    {properties: { title: 'Item 1'}},\r\n    {properties: { title: 'Item 2'}},\r\n    {properties: { title: 'Item 3'}},\r\n    {properties: { title: 'Item 4'}},\r\n    {properties: { title: 'Item 5'}},\r\n    {properties: { title: 'Item 6'}},\r\n];\r\n\r\nlistView.addEventListener(\"scrollend\",myFunction);\r\n\r\nvar addEventButton = Titanium.UI.createButton({\r\n   title: 'Add Event',\r\n   bottom: 10,\r\n   width: 100,\r\n   height: 50\r\n});\r\n\r\naddEventButton.addEventListener(\"click\",function(e){\r\nlistView.addEventListener(\"scrollend\",myFunction);\r\n});\r\n\r\nitemsSection.setItems(itemData);\r\nvar sections = [];\r\nsections.push(itemsSection);\r\nlistView.sections = sections;\r\nwin.add(listView);\r\nwin.add(addEventButton);\r\nwin.open();\r\n\r\n{code}",
					"updateAuthor": {
						"name": "apetkov",
						"key": "apetkov",
						"displayName": "Angel Petkov",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-12-04T23:00:01.000+0000",
					"updated": "2015-12-04T23:00:48.000+0000"
				},
				{
					"id": "372594",
					"author": {
						"name": "cng",
						"key": "cng",
						"displayName": "Chee Kiat Ng",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "CR and FT passed. PR Merged!",
					"updateAuthor": {
						"name": "cng",
						"key": "cng",
						"displayName": "Chee Kiat Ng",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2015-12-10T06:02:06.000+0000",
					"updated": "2015-12-10T06:02:06.000+0000"
				},
				{
					"id": "415155",
					"author": {
						"name": "lmorris",
						"key": "lmorris",
						"displayName": "Lee Morris",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"body": "Closing ticket as fixed.",
					"updateAuthor": {
						"name": "lmorris",
						"key": "lmorris",
						"displayName": "Lee Morris",
						"active": false,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2017-03-22T22:44:24.000+0000",
					"updated": "2017-03-22T22:44:24.000+0000"
				}
			],
			"maxResults": 8,
			"total": 8,
			"startAt": 0
		}
	}
}