As far as I know, Apple does not allow bluetooth file sharing in iPhone/iPad.
Is there any way to write a code in Objective-C to make an application to share files?
If you only need to communicate between other iOS devices, Apple provides a high-level GameKit framework to make it easier to handle Bluetooth communication, which should allow you to share file data. Here's a tutorial I found: http://www.devx.com/wireless/Article/43502/0/page/2
I’m not sure, but I think Apple only allow members of the Made for iPod program to access the low-level raw bluetooth APIs, and even then, can only with certified external devices.
http://developer.apple.com/programs/mfi/
If you want a simple way to share files and other data between devices of other platforms, you might want to have a look at the Bump API: http://bu.mp/api
Related
I am working on a non-audio app for iOS and iPadOS and macOS. This question is specifically about iPadOS for now.
I purchased a generic "USB Volume Control" knob device. I am able to plug it into my (non M1) iPad Pro 12.9 and it does indeed control system volume (rotate), as well as things like rotate through tracks in the Music app (push and rotate), mute (push), etc. I have a second such device from another manufacturer on the way to test with as well.
What I'd really like to do is use it in a non-music context. To be able to capture the raw actions and interpret them in my app's subject domain (DCC model train control).
I have been able, on iPadOS but not iOS [as it doesn't have generic USB support as I understand it] to capture the volume changes by using AVAudioSession and KVO tracking the outputVolume property. I haven't yet figured out how to get the push and push-rotate yet but assume I just need to find the analogue functions in AVAudioSession or some other Apple class.
But I would rather not dink around with the Audio/Music classes and have to "re-purpose" them into my own control needs and was wondering if anyone knew of a way to be able to find and connect to the device and get the values directly.
As iPadOS now has pretty good generic USB support for all sorts of devices, I am hoping there is a way for me to provide service to/with/from those devices but I can't find information through normal internet searches. Poor Google-fu.
I looked at the External Accessory framework but my understanding is that only for MFi certified devices and my attempts to detect the devices have not worked as these are generic USB devices. (Unless there are generic protocols one can register for and make this work).
Thanks for any hints, pointers, admonishments, etc. RTFM is welcome if you tell me the M.
I need to do some basic talking to hardware over USB and am looking for a simple way to build a cross-platform desktop app.
What do you mean by "Talking"? you can use the "Ti.Filesystem" from the tide API, it enables you to read and write files.
Edited on April 29th, content changed
Hello everyone,
I recently bought a Sony Ericsson mobile phone and I would like to add a missing feature myself. In fact I cannot actually disable Internet connection in an easy way when roaming, which cost me a lot of money last time I moved away ... So I would like to develop a little application that would just replace the actual Internet configuration with a fake configuration to avoid auto-connections.
So what I would like to know is how can I access programmatically to my phone settings? I know that Sony Ericsson provides a SDK to run Java applications on its customised JVM. So what I am actually looking for is to know if they extended the J2ME functionality to fit their devices requirements.
This is not well documented so I am asking this question with the hope that someone here already had experience with development targeted for Sony Ericsson devices.
Thanks.
NB: This is a Sony Ericsson Elm which is based on the Sony Ericsson OS with SE Java Platform 8.5.
Edit: I accepted QuickRecipesOnSymbianOS answer as it gave me a clue on the only feature that could have helped me, but which is unfornatunately missing. The Sony Ericsson Java Platform is the only API I could use to develop real programs on my phone. But the JP-8.5 does not implement the JSR-307 package which could help me in managing APN. Thanks everyone for your help.
Well, I hope you got the great Vivaz phone, not the Satio.
In order to learn about Symbian OS C++, first go to the Foundation website.
Relevant plug: the latest introduction to Symbian OS C++ in book form is Quick Recipes on Symbian OS
For now, you won't find a better way than Symbian OS C++ to manipulate your handset access points.
JavaME simply doesn't have the correct APIs for this, at least not until JSR-307 is implemented.
I believe Qt isn't integrated quite tightly enough just yet either but that should change soon enough. Keep an eye on it.
Extending the Symbian Python runtime to do what you want would require some Symbian OS C++ anyway.
Yes you will need to use Symbian C++ to modify the CommDB, which holds the list of connections. It is quite painful to work with it directly, but there are some utility classes that can help you out. Take a look at CApSelect, CApDataHandler and CApAccessPointItem, all in the developer library.
And yes, these will work on all modern Symbian handsets, independent of brand.
Note: My answer below assumed it was about a symbian device. Since it was actually a J2me device none of the below applies
The easiest way to achieve what you want to do is probably to just remove all the "destinations" when you want to prevent auto connections. Otherwise the device will test each destination in turn until it finds one that works.
You can also set up your destinations so that they are not allowed to be used automatically. This setting must be done individually for each destination.
You can also group your destinations and set one of the groups to the default. If you set the default to an empty group you should not get any automatic connections.
Note that I have not tested any of these methods myself. When I roam I turn off automatic updates in the apps that use them. Some apps can even detect when you are roaming and avoid auto connects.
There are S60 apps available that improves the connection management of vanilla S60, but I do not know if any of them can help you with your problem.
If you are dead set on doing the programming yourself you have to use the C++ SDK for Symbian S60 available from Forum Nokia. Java ME does not allow you to manipulate the destinations of the device.
The Elm device should have (I haven't verified this) the access point API originally designed by Nokia. Not sure whether you can use it for the purpose you want though. The J2me developer guidelines available from developer.sonyericsson.com should have all the information you need.
I'm puzzling my head as to how some application appear to support the couple of Rotational Sensor APIs for Symbian, specifically the Sensor API and the Sensor Framework (both the 5th ed. and the 3rd ed. FP2 backport).
For example, I believe that Gravity will support rotation in N95 and also newer models from the same binary (could be wrong there...).
If I use the Sensor Framework then my app will not install on an N95 (it gives me a System Error -1), whereas if I use the Sensor API (RRSensor) then it will only install on an N95 and no other phones. This is most likely due to the available libraries on those devices.
I am trying to find some way of abstracting things such that I can use exactly the same binary for all devices. The only alternative I can see is trying to use ECOM plugins and then installing the relevant library using conditionals in my PKG file.
Does anyone know of a better/easier way?
If you need to use different APIs, I suggest making multiple DLLs that implement the same interface and selectively install them to device depending on device ID. SIS files allow that.
Simply I am asked to write an application for a smart device (smart cell phone), which will get the GPS coordinates from the device itself.
I have no smart device at all. And I am kind of lost among questions like how can I check if the device have a gps by using the code, if it has how can I obtain them in a "standard" way, do I need to be using frameworks like GeoFrameWork?
So, may somebody list the must or most required things I need to have ready?
Geoframeworks GPS.NET is free these days and it's pretty comprehensive so there's no point reinventing the wheel. It's also friendly to beginners which helps. I strongly recommend downloading it and playing with some of the sample apps. It's a bit tricky if you don't have a physical device to play around with but it does have GPS emulation classes that you can use.
All you need is a copy of VS2008 Pro with the Smart Device SDK installed.