On iOS, the \"write\" function on a Ti.Filesystem.File returns\ntrue or false depending on if the write was successful, or false if\nit's not possible to write to the file or blob. Android doesn't\nreturn anything.
\n\nvar file = Titanium.Filesystem.createTempFile();\nif (file.write('my super cool data') === true) {\n alert('PASS: I wrote to a file! YESSS!');\n}\nelse {\n alert('FAIL: I am sad, for I could not tell you I wrote to the file. Weep weep weep.');\n}\n\nTitanium SDK version: 1.6.0 (02/02/11 15:22 a02f7db...)
\nPASSES on iOS Simulator 4.2
\nFAILS on Android Simulator 2.2
The docs already state that \"write\" returns a boolean, most\nlikely because that's what iOS does.
\n\nhttp://developer.appcelerator.com/apidoc/mobile/latest/Titanium.Fil...
Also note that this is causing a RHINO USAGE WARNING. It is\ndefinitely caused by trying to pull a value out of\nfile.write('whatever'), as demonstrated here:
\n\nLocation: [1,0] app://app.js\nSource: {there isn't anything in here... it's blank in the alert}\nMessage: RHINO USAGE WARNING: Missed Context.javaToJS() conversion: Rhino runtime detected object undefined of class org.appcelerator.kroll.KrollProxy$1 where it expected String, Number, Boolean, or Scriptable instance. Please check your code for missing Context.javaToJS() call.\n\nThis is all you need in your app.js. Simple, huh? When the app\nlaunches, you should see the warning message.
\n\nTi.Filesystem.createTempFile().write('chicken') === true;\n\n\n[INFO] Deployed Playground2 ... Application should be running.\n[TRACE] I/Log ( 387): (main) [0,0] checkpoint, app created.\n[TRACE] I/TiApplication( 387): (main) [297,297] Titanium 1.6.0 (2011/02/02 15:22 02f7db...)\n[TRACE] D/TiApplication( 387): (main) [5,302] Application onCreate\n[TRACE] D/dalvikvm( 387): GC_FOR_MALLOC freed 3471 objects / 332160 bytes in 149ms\n[TRACE] E/TiPlatformHelper( 387): (main) [545,847] renaming ID\n[TRACE] I/Log ( 387): (main) [0,0] checkpoint, on root activity create, savedInstanceState: null\n[TRACE] E/TiRootActivity( 387): (main) [5,5] Instance Count: 0\n[TRACE] D/TiApplication( 387): (main) [148,153] Analytics Event: type=ti.start\n[TRACE] D/TiApplication( 387): event=ti.start\n[TRACE] D/TiApplication( 387): timestamp=2011-02-04T17:49:14.030-0600\n[TRACE] D/TiApplication( 387): mid=8a431ae8-f811-488a-9758-4d15bf980db2\n[TRACE] D/TiApplication( 387): sid=682aa288-3a3c-479f-acdf-bd115fa52b5d\n[TRACE] D/TiApplication( 387): aguid=d85d7f90-1fae-46cf-93e6-6e0a57d6b5f3\n[TRACE] D/TiApplication( 387): isJSON=true\n[TRACE] D/TiApplication( 387): payload={\"os\":\"sdk\",\"tz\":-360,\"nettype\":\"MOBILE\",\"deploytype\":\"development\",\"app_version\":\"1.0\",\"osver\":\"2.2\",\"un\":\"android-build\",\"version\":\"1.6.0\"}\n[TRACE] E/TiApplication( 387): (main) [275,428] APP PROXY: [Ti.App]\n[TRACE] E/ROOT ( 387): (main) [317,745] Leaving TiRootActivity.onCreate\n[TRACE] I/Log ( 387): (main) [0,0] checkpoint, on root activity resume. context = org.appcelerator.titanium.TiContext@44f19ab0\n[TRACE] I/TiRootActivity( 387): (Thread-9) [8,8] eval app.js\n[TRACE] D/KrollContext( 387): (kroll$1) [25,33] Running evaluated script: app://app.js\n[TRACE] W/TiAnalyticsSvc( 387): (Thread-10) [186,219] Analytics Service Started\n[TRACE] I/global ( 387): Default buffer size used in BufferedWriter constructor. It would be better to be explicit if an 8k-char buffer is required.\n[TRACE] D/dalvikvm( 387): GC_FOR_MALLOC freed 5135 objects / 356288 bytes in 312ms\n[TRACE] E/TiContext( 387): (kroll$1) [243,462] Rhino Error: app://app.js:1,0\n[TRACE] E/TiContext( 387): (kroll$1) [342,804] Message: RHINO USAGE WARNING: Missed Context.javaToJS() conversion:\n[TRACE] E/TiContext( 387): Rhino runtime detected object undefined of class org.appcelerator.kroll.KrollProxy$1 where it expected String, Number, Boolean or Scriptable instance. Please check your code for missing Context.javaToJS() call.\n[TRACE] E/TiContext( 387): (kroll$1) [2,806] Source: null\n[TRACE] I/TiAnalyticsSvc( 387): (Thread-10) [956,1762] Sending 1 analytics events.\n[TRACE] I/ActivityManager( 60): Displayed activity com.dawson.playground2/.Playground2Activity: 6075 ms (total 6075 ms)\n[TRACE] D/dalvikvm( 387): GC_FOR_MALLOC freed 5968 objects / 357208 bytes in 101ms\n[TRACE] D/dalvikvm( 387): GC_FOR_MALLOC freed 504 objects / 25168 bytes in 93ms\n[TRACE] W/TiAnalyticsSvc( 387): (Thread-10) [4018,5780] Stopping Analytics Service\n[TRACE] D/dalvikvm( 248): GC_EXPLICIT freed 218 objects / 14688 bytes in 87ms\n[TRACE] D/dalvikvm( 258): GC_EXPLICIT freed 31 objects / 1496 bytes in 91ms\n[TRACE] D/dalvikvm( 132): GC_EXPLICIT freed 200 objects / 10696 bytes in 66ms\n\nTitanium SDK version: 1.6.0 (02/02/11 15:22 a02f7db...)
\nOccurs on Android Simulator 2.2
(from [2b9fd7dae1c45c8bf55b0d930659494c05ec3ebc])\n[#3052 state:fixed-in-qa] change File write to\nreturn a boolean value
\nchanged write method on file object to return a boolean value\nindicating whether the write was successful or not
\n\nhttps://github.com/appcelerator/titanium_mobile/commit/2b9fd7dae1c4...
Please verify fix with the attached app.s. When running, you\nshould see:
\n03-16 20:01:48.546: INFO/ALERT(437): (kroll$1: app://app.js)\n[2717,13782] PASS: I wrote to a file! YESSS!
Tested with Titanium SDK version: 1.7.0 (03/16/11 13:28 2b9fd7d)\non
\nNexus S 2.3.2
\nI/ALERT ( 1071): (kroll$3: app://app.js) [323,396] PASS: I wrote to\na file! YESSS!
\nEmulator 2.1
\n[TRACE] I/ALERT ( 275): (kroll$1:\napp://app.js) [430,772] PASS: I wrote to a file! YESSS!