I'm wondering if it's possible to access the Camera Roll on the iPhone programmatically. Some background: I want to basically run a cron job every night that will download all the (preferably new since last time) photos from my iPhone to a folder on my computer. I'm using a Mac, and I'm not terrifically concerned with interoperability — I suspect doing this in a platform-agnostic way is probably a lot more trouble than it's worth (if it's even possible).
Basically the only requirement here is that the program/script needs to be able to be invoked from the shell, which essentially everything can, so really I don't care what language it is in. Once the photos are downloaded I intend to run a Python script of mine to do what I will with them.
I suspect the easiest way to do this may be with (deep breath) AppleScript to the Image Capture application on every Mac. But maybe others have better ideas, or any experience with using the AppleScript approach?
You can use the ImageCaptureCore framework to download photos over PTP.
I guess the easiest and most comfortable solution would be to use Automator for that, using the "Download Pictures" action in a workflow and invoking it from a shell using "automator".
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I would like to profile a running app without a computer attached. Pretty much what the sample command does on Mac OS X. Is it possible ?
I would like to do this without any computer attached because my app gets into an endless loop only at certain GPS locations. I tried reproducing the problem by faking GPS fixes but I couldn't. Yet the issue is 100% reproductible in the field…
You can try logging suspected method and loop entry/exits to a file, and recover the file later using iTunes Document sharing or Xcode.
No - I'm pretty sure it isn't, as Apple does not allow developers to use any iOS-development tools on the platform itself. You might be able to build analytical stuff into your own app (RAM monitor etc.), but not by using another app.
Anyway, your computer is much better suited to the task than a device - so sick with it.
Maybe some day Apple will let us test/write iPhone apps from iPads...
I want to make an app that runs in the background so that if a user is reading a web page or PDF file on an iPhone or iPad, he can mark some words, see the meaning of those words, and then have those words stored in the app's database. He can then afterwards look for the words which he has learnt and increase his vocabulary.
Does the iOS 4 API allow that? What are the limitations? Advantages? Disadvantages?
Thanks in advance
No is does not, you can only run voip. audio or navigation apps in the background.
Only one app can run at a time, and installing one app cannot effect any built in app. So no, there is no way to achieve what you are trying for here.
Your best bet is to instruct users to copy the word, open the app, and then you can snag whatever is on the clipboard then.
(Note there are multitasking APIs, but you still cant access anything outside of your app even if you convince the OS to let you run in the background for a little while)
Hey everyone. I have a fair amount of experience developing iOS apps, but nothing much with web/server interacting apps. For a project at work, I am making an app that will let you login, and get pictures off from a server that will then be downloaded for display and review on the local device.
I need to get some pointers on the correct approach to take. Are there built-in classes that make doing something like this easy? Once the cogent is downloaded from the server, it will be viewed locally, so all I need is to get a point in the right direction for logging in and communicating with a server…from an iPhone.
Can anybody point me in the right direction?
Me, I'm using ASIHTTPRequest Librayry to communicate / download with Internet.
For example, for an news app I download latest news in JSON (with a PHP script on a web server) and store datas with SQLite. If you need a little explanation of JSON with iPhone, check here (in french, but source codes are in english ^^)
When I need to download an image, I use ASIHTTPRequest and a queue to avoid downloading to much files at the same time.
If you want more information about a step, just say it.
Good Luck !
NURLConnection is your friend, along with its delegate methods.
Don't be lured by the temptation to use the -sendSynchronous method (which, now that I think about it, if you require authentication, you probably can't use anyway).
Is there a way to have an app write a into a file and then have another app read from that file?
I mean writting into the file system of the iPhone.
I want to do this without using an internet connection. So uploading the file and then downloading from the other app is not what i mean.
Thanks!
It appears that there are ways you can, but it won't get approved by Apple if you do.
See http://blogs.oreilly.com/iphone/2008/09/sandbox-think-like-apple.html for more information.
The current sand boxing of applications does not allow this, however it appears that this may be available in future iPhone OS versions. Reference
I'm not sure exactly what circumstances you're in here, but you could register app B as a handler for a particular protocol, and have app A try to open such a link (e.g. appB://yourinfohere). It depends on how much data you want to transfer and many other things, but it might work.
Basically I am wondering if it is possible to run a console script (.sh) from an iPhone App. The script is written to download a program from a repository that I set up, respring, then after a set time delete the program and respring again, so it needs root privileges, and is interactive in that the user can set how long the program will be kept. I have the bash script written, and it works fine when called from mobile terminal, but is there any way to do this from within a (jailbroken) app (without using mobile terminal / SSH / Bossprefs)? Or is there an overall better way to achieve this?
Thanks
Jasarien is right here it is pretty resticted and as we all know that all apps are sandboxed. But it is not impossible since Objective-C is just build on C you can use
system("ls");
to execute a basic ls command and it works if you look in your gdb output. Altho you can also use popen to get the streams to app to work with the data.
Since you're working with a Jailbroken phone, you're pretty much unrestricted. Whether or not there's anything in the iPhone APIs that allows for script execution is another matter though. Also anything you do use will be unsupported, and is likely to change, stop working or be removed in a software update.
Also, you probably already know this, or don't care, but you won't get past Apple's review process for the App Store if you start running BASH scripts. Interpreted code is forbidden.
I would look up how to do it on OSX, chances are that'll be how it's done on the iPhone, but you probably won't find any iPhone specific documentation about it because it's not allowed on a "normal" iphone (one that is not jailbroken)
something you may consider is using NSTask if you want to get output and error messages from the shell.
Actualy
system('ls /'); gives a better result as system('ls');