I did a little grunt work here converting the project to Swift 4 from Swift 2. There's still a warning regarding the deprecation of NSURLConnection. The CCBufferedImageView needs refactoring to be up to date with URLSession, but that's going to be a bigger effort.

I figured the first step would be to make this repo easily compatible with Xcode 9 😛

The tests all pass, I regenerated the reference images for the snapshot cases and they match the spec.

Crashed: com.contentful.Concorde EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0x00000000

Thread : Crashed: com.contentful.Concorde
0  libobjc.A.dylib                0x31e2af78 lookUpImpOrForward + 47
1  libobjc.A.dylib                0x31e2af3f _class_lookupMethodAndLoadCache3 + 34
2  libobjc.A.dylib                0x31e2af3f _class_lookupMethodAndLoadCache3 + 34
3  libobjc.A.dylib                0x31e311f9 _objc_msgSend_uncached + 24
4  Concorde                       0x001f7a64 _TFFC8Concorde19CCBufferedImageView10connectionFS0_FTCSo15NSURLConnection14didReceiveDataCSo6NSData_T_U_FT_T_ + 372
5  libdispatch.dylib              0x3238540f _dispatch_client_callout + 22
6  libdispatch.dylib              0x3238e861 _dispatch_barrier_sync_f_invoke + 48
7  Concorde                       0x001f62a8 _TToFC8Concorde19CCBufferedImageView10connectionfS0_FTCSo15NSURLConnection14didReceiveDataCSo6NSData_T_ + 304
8  CFNetwork                      0x2410aeed __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 56
9  CFNetwork                      0x2410aea7 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 182
10 CFNetwork                      0x2410af99 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 36
11 CFNetwork                      0x240f8a11 _NSURLConnectionDidReceiveData(_CFURLConnection*, __CFData const*, long, void const*) + 80
12 CFNetwork                      0x2401deab ___ZN27URLConnectionClient_Classic29_delegate_didReceiveDataArrayEv_block_invoke + 158
13 CFNetwork                      0x240bc76d ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 60
14 CFNetwork                      0x24010d71 RunloopBlockContext::_invoke_block(void const*, void*) + 60
15 CoreFoundation                 0x244c35a1 CFArrayApplyFunction + 36
16 CFNetwork                      0x24010c2b RunloopBlockContext::perform() + 182
17 CFNetwork                      0x24010af1 MultiplexerSource::perform() + 216
18 CFNetwork                      0x2401098d MultiplexerSource::_perform(void*) + 48
19 CoreFoundation                 0x24578fd7 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
20 CoreFoundation                 0x245783eb __CFRunLoopDoSources0 + 222
21 CoreFoundation                 0x24576a69 __CFRunLoopRun + 768
22 CoreFoundation                 0x244c3b31 CFRunLoopRunSpecific + 476
23 CoreFoundation                 0x244c3943 CFRunLoopRunInMode + 106
24 GraphicsServices               0x2b8a1051 GSEventRunModal + 136
25 UIKit                          0x27ab5f21 UIApplicationMain + 1440
26 Chata de Galocha               0x00043e34 main (AppDelegate.swift:19)

Hi! We love your library! Very nice. The most interesting part in this project for me is the CCBufferedImageDecoder in pair with the library. In my eyes the CCBufferedImageView.swift is more like an example of how to integrate. Therefore I created this https://github.com/agens-no/CCBufferedImageDecoder

Ideally for me we would just change the podspec in this repo to either a) move the swift stuff into a subspec or b) remove the swift stuff or c) use one of the [ports].(https://github.com/ljfantin/Concorde/blob/feature/support_ios_7/Code/CCBufferedImageView.m).

Anyways, just though I should let you know.

Hello Boris!

What does CCDecodingStatusNextIteration mean? Does it simply mean that there's isn't enough information to fill the whole canvas and given more data it probably will?

I've noticed that occasionally I get a crash when using CCBufferedImageView with progressive JPEGs. The crash is an EXC_BAD_ACCESS on the decodedImage variable in public func connection(connection: NSURLConnection, didReceiveData data: NSData).

This crash is quite easily reproducible if you place the CCBufferedImageView inside a tableview cell.

Adding a guard to make sure that decodedImage is not nil solves the issue.

I have a tinder-like stack of images. Touch events are not delivered while big images gets loaded/decode. Thats because you decode image with dispatch_sync and it stops main_thread.

Currently blocked by "FBSnapshotTestCase" not building on 7.2 — "Use of private header from outside its module" for all imports of private headers in implementation (!) files.

Updating the Gems in order to fix security vulnerabilities in dependencies. Also moving rubygems to HTTPS. Can you please run your tests and see if it all works?

I want to develop the component in Java.But I can't find detailed description of ProgressiveJpeg format when searching on Google.Please guide me where I can get detailed information about ProgressiveJpeg.

The title of this github repository is "Download and decode progressive JPEGs on iOS." But it doesn't do the very thing that Progressive JPEG was invented to do:

Progressively download and decode JPEGs on iOS

It misuses NSURLSession to grab ALL the data (a process that takes 99% of the total time) then decodes it.

Please rewrite to use NSURLSession in stream mode, so that is passed to your CGDataProvider in bursts, decoding what you can and writing it to the screen as the data comes in.

In CCBufferedImageDecoder , you create your CGDataProvider with an NSData, but by the time you have the NSData, 99% of the time of fetching and displaying the image has already elapsed, making progressive jpeg decoding pointless.

When I try to include this in an iOS 9 project, I get errors about bitcode support not being available on a certain ARM architecture. As a result, I have to disable bitcode for my entire app.

Hello!

I have been trying to use Concorde in a iOS project with the following code:

if let url = NSURL(string: produto.imagem!.url!){
        let imagem = CCBufferedImageView(frame: cell.imageView!.frame)
        imagem.load(url)
        cell.addSubview(imagem)
}

produto.imagem is a Contentful Asset and url value currently is: url NSURL "https://images.contentful.com/765kywdqo8as/1u0UQOzrSEyAIYoY8CgaiU/743112ca52714a9739b7550fb83a43e2/3479738_wallsPetroleum_01.png" 0x00007feba3861590

When I execute my code I only get grey placeholders and never an image.

On the other hand I have tried using ContentfulPersistence with the following code:

let imagem = CCBufferedImageView(frame: cell.imageView!.frame)
imagem.cda_setImageWithPersistedAsset(produto.imagem!, client: source!.client, size: imagem.frame.size, placeholderImage: nil)
cell.addSubview(imagem)

Then I get the following error: fatal error: should never be called: file /Users/rafael/Trabalho/Bier Leverpilsen/Pods/Concorde/Code/CCBufferedImageView+Contentful.swift, line 18

Any help would be appreciated! I have been struggling for a while!