Actually, I’ve read somewhere that keeping images as bundle would be the proper way to prevent it from being copied from .ipa file. So, I would like to know how to make bundles for images. Please help me out.
There's some good advice regarding creating and accessing an asset bundle in the answers to this question.
Related
I have an app that saves data in my Documents directory. It would be very useful to be able to mail the data file to some other users so they can also use the gathered information. I have spent most of today looking for a solution, but have not found any answers basic enough to be of any help. So, I would greatly appreciate some help to get me started. Like, what do I need to do to make IOS aware that I am interested in opening ( in my case actually only copying the file to the app’s Documents directory for further chewing) a file with, for example the .xyz-extension and how this is done.
Much appreciated,
stalle
Running on a real device, there seems to be no problem.
Im new to iPhone programming and wanted to see how people have solved this problem:
Ive created my app which will ship with certain pLists and .png files in the main bundle. However, what I want to do is when the app starts up, Id like it to check my server to see if there are updated versions of the files in the documents folder available. If so Id like the app to download those files.
I was wondering if someone can point me to some resources on how to do this? Ive searched online but haven't come up with good hits.
Whats the google key-word for searching this topic anyways?
Thanks a lot
you can use NSUrlRequest to download the files, to move them to the correct place you can use NSFileManager, if you look at the apple docs for both these classes there should be sample code explaining how to copy/save a file from NSData, and also how to download it.
I don't have any example resources of how to do exactly this, though I would probably do something along the lines of onAppLoad checking to see if the content of the application that you want to keep updated is the most recent, and if not, download it.
As for keywords to search I would try something along the lines of "Automatic App Content Updating/Verification" and throw in "iOS/iPhone/iPad" or some similar combination.
I'll do some more poking around and shoot you a comment notification if I find anything worthwhile, and then edit my post with it.
this is a follow on from this question and the link given it seems that when an app is updated all of the files in the documents directory are copied into the updated apps documents directory and also anything in Library/Preferences. Whats the best way to simulate this for testing purposes?
Just copy the files in ApplicationSupport/iPhone Simulator etc? or has anyone developped any funky techniques for testing this.
I have created .sqlite file in my application's documents folder and created some dummy entries in my database table.
Now just change you code build new application without changing any of the certificate and profile information load the new application.
Now check for the old database table records. It will be definitely preserve under your Document directory in .sqlite file.
This is what i followed when i want to check it for same thing.
If anyone know better way then please feel free to suggest new things.
Jim.
I'm writing an iPhone app which downloads a tar-gzipped file from a Webserver, then needs to unarchive this file so that it can be copied into the app's Documents folder.
I'm using tar/gzip because I want to download a whole bunch of small files in one HTTP request, to make everything nice and fast.
I've investigated solutions like http://www.feep.net/libtar/, but as a C/Objective-C newb, I can't get any of them to compile for the iPhone platform.
(I felt like I should just be able to do a system call to "tar -zxvf myfile.tar.gz", but it would appear it's not that easy!)
So is there a simple way to just un-tar a file on the iPhone? Or am I going about this all wrong, and is there a better way to do this?
Thanks in advance!
Nik
This blog post should help you:
http://blog.hawkey.org/?p=332
EDIT: Google cache version of the same page which actually links to a forum post here which links to a Google Code project here, containing some code which implements unzipping on iOS.
Here is a light untar library for iOS : https://github.com/mhausherr/Light-Untar-for-iOS
Complete blog post about the solution : http://blog.octo.com/en/untar-on-ios-the-pragmatic-way/
Hope this helps,
Vincent
I took a different approach by building libarchive and bz2lib as a static library for iOS. You can find it here:
http://github.com/davepeck/iOS-libarchive/
I was wondering if I could add the files to the app resources from an external url. As in suppose I see a url which has a nice image. Can I download that from the website and add it as a resource and use it locally for later use ? I am sure there is way But Need some guidance on how to approach the problem and The set of Classes that could be used with explanantion.
Thanks,
You can't change anything in your app bundle after it has been signed. If you did, you'd make the signature invalid, and the iPhone would refuse to run your app. Your best bet is to add the files to the Documents or tmp folder. There really isn't much of a reason to have stuff in your own bundle - is there a reason you have to have those images there?