{
	"id": "136395",
	"key": "TIMOB-17674",
	"fields": {
		"issuetype": {
			"id": "4",
			"description": "An improvement or enhancement to an existing feature or task.",
			"name": "Improvement",
			"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": null,
		"resolutiondate": null,
		"created": "2014-09-10T19:40:16.000+0000",
		"priority": {
			"name": "None",
			"id": "6"
		},
		"labels": [
			"Android",
			"ImageView",
			"TCSupport"
		],
		"versions": [
			{
				"id": "15422",
				"description": "Release 3.3.0",
				"name": "Release 3.3.0",
				"archived": false,
				"released": true,
				"releaseDate": "2014-07-16"
			}
		],
		"issuelinks": [],
		"assignee": null,
		"updated": "2018-02-28T20:04:10.000+0000",
		"status": {
			"description": "The issue is open and ready for the assignee to start work on it.",
			"name": "Open",
			"id": "1",
			"statusCategory": {
				"id": 2,
				"key": "new",
				"colorName": "blue-gray",
				"name": "To Do"
			}
		},
		"components": [
			{
				"id": "10202",
				"name": "Android",
				"description": "Android Platform"
			}
		],
		"description": "If an application has two different images with urls/paths that map to the same hash code at java.lang.String level then Ti.UI.ImageView can show the wrong one.\r\n\r\nTiUIImageView internally uses a memory cache for the Bitmaps with TiDrawableReference.hashCode() as keys. In case of an url-based drawable reference TiDrawableReference.hashCode() turns into a simple java.lang.String.hashCode(url) wrapper.\r\n\r\nSee line 115 of\r\nhttps://github.com/appcelerator/titanium_mobile/blob/master/android/titanium/src/java/org/appcelerator/titanium/view/TiDrawableReference.java\r\nand line 694 of\r\nhttps://github.com/appcelerator/titanium_mobile/blob/master/android/modules/ui/src/java/ti/modules/titanium/ui/widget/TiUIImageView.java \r\n\r\njava.lang.String.hashCode() is very likely to generate collisions.\r\nThe following code prints the same number for both urls.\r\n{code}\r\n\tpublic static void main(String[] args)\r\n\t{\r\n\t\tint h1 = \"file:///data/data/it.xenesys.Nomination/app_appdata/ITEMFASHION_0002TW1.png\".hashCode();\r\n\t\tint h2 = \"file:///data/data/it.xenesys.Nomination/app_appdata/ITEMFASHION_0002TVP.png\".hashCode();\r\n\t\tSystem.out.println(\"Hash code 1: \" + Integer.toString(h1));\r\n\t\tSystem.out.println(\"Hash code 2: \" + Integer.toString(h2));\r\n\t}\r\n{code}\r\n\r\nThe cache should use a stronger hashing algorithm (such as SHA1) and possibly add more data to be hashed (the file size?).\r\n",
		"attachment": [],
		"flagged": false,
		"summary": "Android: On Android Ti.UI.ImageView can show the wrong image (cache bug, explained)",
		"creator": {
			"name": "s.stefanek",
			"key": "s.stefanek",
			"displayName": "Szymon Tomasz Stefanek",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"subtasks": [],
		"reporter": {
			"name": "s.stefanek",
			"key": "s.stefanek",
			"displayName": "Szymon Tomasz Stefanek",
			"active": true,
			"timeZone": "America/Los_Angeles"
		},
		"environment": "Titanium 3.3.0GA\r\nLinux Ubuntu 13.04\r\nAndroid",
		"comment": {
			"comments": [
				{
					"id": "328566",
					"author": {
						"name": "l0wb1rd",
						"key": "l0wb1rd",
						"displayName": "Low Bird",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"body": "This also happens with BLOB type images sometimes. If you build a gallery from the mediastore (MICRO_KIND blobs) with lots of imageviews, you falsely hit the cach very quickly.",
					"updateAuthor": {
						"name": "l0wb1rd",
						"key": "l0wb1rd",
						"displayName": "Low Bird",
						"active": true,
						"timeZone": "America/Los_Angeles"
					},
					"created": "2014-10-20T06:36:23.000+0000",
					"updated": "2014-10-20T06:36:23.000+0000"
				}
			],
			"maxResults": 1,
			"total": 1,
			"startAt": 0
		}
	}
}