[iOS] Immediate Crash

[roblav96]

My app crashes and I get this error when trying to upload a file on iOS 😢

Source

<ListView row="0" [items]="_images" (itemTap)="onItemTap($event)">
    <template let-item="item">
        <Image [imageSource]="item"></Image>
    </template>
</ListView>

import {Folder, FileSystemEntity, knownFolders, File, path} from "file-system"
import {ImageSource, fromFile, fromUrl} from "image-source"
import {ImageFormat} from "ui/enums"
import {Session, Task, session} from "nativescript-background-http"

onItemTap(args: ItemEventData) {

    let image: ImageSource = this._images[args.index]
    let folder: Folder = knownFolders.documents()

    let fileName: string = "IMAGE_FILE.png"
    global.tnsconsole.log('fileName', fileName) // IMAGE_FILE.png

    let filePath: string = path.join(folder.path, fileName)
    global.tnsconsole.log('filePath', filePath) // /var/mobile/Containers/Data/Application/EB845FC8-96DE-4FAB-95F8-93B78DB38724/Documents/IMAGE_FILE.png

    if (image.saveToFile(filePath, ImageFormat.png)) {

        let sesh: Session = session("image-upload")
        let options: any = {
            url: 'http://192.168.0.2:8083',
            method: 'POST',
            headers: {
                'Content-Type': 'application/octet-stream',
                'File-Name': fileName
            },
            description: '{ \'uploading\': ' + fileName + ' }'
        }
        let task: Task = sesh.uploadFile(filePath, options)

        task.on('progress', logEvent)
        task.on('error', logEvent)
        task.on('complete', logEvent)

    }

    function logEvent(e) {
        console.log(e.eventName)
    }
}

Error

CONSOLE LOG file:///app/dev/tns.console.js:107:22: 
[LOG] 06:09:32:993 itemTap_9_0
fileName > IMAGE_FILE.png

CONSOLE LOG file:///app/dev/tns.console.js:107:22: 
[LOG] 06:09:32:995 itemTap_9_0
filePath > /var/mobile/Containers/Data/Application/EB845FC8-96DE-4FAB-95F8-93B78DB38724/Documents/IMAGE_FILE.png

1   0x5a56d3 NativeScript::FFICallback<NativeScript::ObjCMethodCallback>::ffiClosureCallback(ffi_cif*, void*, void**, void*)
2   0x987c15 ffi_closure_inner_SYSV
3   0x98b0b8 ffi_closure_SYSV
4   0x25e5dc23 <redacted>
5   0x25f1749d <redacted>
6   0x25f237af <redacted>
7   0x25c5f799 <redacted>
8   0x2164f2b1 <redacted>
9   0x2164d5a7 <redacted>
10  0x2164d9e5 <redacted>
11  0x2159c1c9 CFRunLoopRunSpecific
12  0x2159bfbd CFRunLoopRunInMode
13  0x22bb8af9 GSEventRunModal
14  0x25cd5435 UIApplicationMain
15  0x98b02c ffi_call_SYSV
16  0x987959 ffi_call
17  0x5774b7 NativeScript::FFICall::call(JSC::ExecState*)
18  0x7c50ab JSC::LLInt::setUpCall(JSC::ExecState*, JSC::Instruction*, JSC::CodeSpecializationKind, JSC::JSValue, JSC::LLIntCallLinkInfo*)
19  0x7c2e61 llint_slow_path_call
20  0x7cac7d llint_entry
roblav96@Roberts-iMac:/Volumes/OSX HD/Projects/sandbox/client$

package.json

"nativescript": {
    "id": "com.roblav96.sandbox",
    "tns-android": {
        "version": "2.2.0"
    },
    "tns-ios": {
        "version": "2.2.1"
    }
},
"dependencies": {
    "@angular/common": "2.0.0-rc.5",
    "@angular/compiler": "2.0.0-rc.5",
    "@angular/core": "2.0.0-rc.5",
    "@angular/forms": "0.3.0",
    "@angular/http": "2.0.0-rc.5",
    "@angular/platform-browser": "2.0.0-rc.5",
    "@angular/platform-browser-dynamic": "2.0.0-rc.5",
    "@angular/platform-server": "2.0.0-rc.5",
    "@angular/router": "3.0.0-rc.1",
    "@ngrx/core": "1.0.2",
    "@ngrx/store": "^2.1.2",
    "ansicolors": "latest",
    "ansistyles": "latest",
    "lodash": "latest",
    "lokijs": "latest",
    "moment": "latest",
    "nativescript-angular": "0.4.0",
    "nativescript-background-http": "latest",
    "reflect-metadata": "0.1.3",
    "rxjs": "5.0.0-beta.6",
    "tns-core-modules": "2.2.1",
    "zone.js": "0.6.12"
},

Using the latest version with the example server.js backend supplied in this repository.

[karan1149]

Also having this issue.

[NickIliev]

Hey @roblav96 , @karan1149 did you guys still reproduce this with the latest version of the plugin and the tis-core-modules?

[roblav96]

@NickIliev I have not tried using this since the original post up top.

I ended up wiping together something small using AFNetworking:

private static _downloadData(): Promise<NSURL> {
    return new Promise(function(resolve, reject) {
        let file: string = 'Archive'
        let config: NSURLSessionConfiguration = NSURLSessionConfiguration.backgroundSessionConfigurationWithIdentifier('com.roblav96.sandbox')
        let manager: AFURLSessionManager = AFURLSessionManager.new().initWithSessionConfiguration(config)
        let url: NSURL = NSURL.URLWithString(IP + '/tessdata/' + file + '.zip')
        let request: NSURLRequest = NSURLRequest.requestWithURL(url)
        let downloadTask: NSURLSessionDownloadTask = manager.downloadTaskWithRequestProgressDestinationCompletionHandler(
            request,
            function downloadProgressBlock(progress: NSProgress) {
                let value: number = Math.min(progress.completedUnitCount / progress.totalUnitCount, 99)
                TesseractClass.emitter.emit('progress', value)
            },
            function destination(targetPath: NSURL, response: NSURLResponse): NSURL {
                let tessdata: Folder = knownFolders.temp().getFolder('tessdata')
                let nsurl: NSURL = NSURL.fileURLWithPath(tessdata.path + '/' + file + '.zip')
                return nsurl
            },
            function completionHandler(response: NSURLResponse, filePath: NSURL, nserror: NSError) {
                if (nserror) {
                    let error: any = (nserror.description) ? nserror.description : nserror
                    global.tnsconsole.error('downloadData > error', error)
                    reject(error)
                } else {
                    resolve(filePath)
                }
            }
        )
        downloadTask.resume()
    })
}

I'll check this and see if it's working. I'm always deving on @next everything.

[roblav96]

@NickIliev I can confirm that the latest version works flawless on android and ios :D

[shivgolani]

@roblav96 can you help me if I want to download multiple files. Your code is allowing only single file download.