My goal is to listen only and not modify the outgoing call event and send GPS coordinates to server from background. I'm not even interested in phone number being dialed, what I only need to know is whether the current call is Emergency call.
I've accomplished this easily in android, by following this tutorial.
However some googling showed that, this is a big pain in the ios world.
The only solution I think is to write dialer app from scratch and manage all the events by myself (if that's even possible), but I think it's too overcomplicated
I'm completely new to ios and please let me know, how would you solve this problem guys?
There is no way this will be possible on iOS unless you were planning to release and app for jailbroken phones (and even then I'm not sure it is). The Core Telphony framework has the methods you can use: https://developer.apple.com/library/ios/documentation/NetworkingInternet/Reference/CoreTelephonyFrameworkReference/index.html
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From all I have read here, creating a call tracking app on iOS seems impossible. However, after some investigation, I have found a couple of workarounds and would like to know if they are legal and would work at all.
So, at least, I will need one of these features:
access call log history. I've read that's impossible, but also I know that on many devices where iCloud backup is turned on, call history data is saved there, so using some API, for example, this, I can access it. Am I right?
receive notifications when the call is ended. I've read this is possible only in foreground, therefore makes no sense. But following this question, I see that you can initiate calls from the application, which allows at least to track outgoing calls.
Would this be enough or I am wasting time?
Unless you're running on a jailbroken device, the answer is no because there is no publicly available API that provides access to the call list and that is a good thing from a privacy point of view.
A quick search shows that CallKit is for integrating VOIP into the call list, so again the answer is no, CallKit will not be of any use to you.
The notifications are there so that your app can respond properly to calls that take place while it is active.
I'm trying to get into a new project, by creating an iOS application. But before I start I would like to understand some points:
is it possible to let an application make a phone call? So what I mean is, assumed we have a phone number and would like to call it. Would it be possible to use an (my) application to call this number?
is it possible to let an application speak during a phone call? So after the application started the call, would it be possible that some predefined statements are said in the call?
is it possible that this application hears, registers and analyses what the other person on the phone line is saying? (Leaving apart the privacy issue, assuming that the other person is willing to do that).
Could you please help me? If my question aren't clear, please tell me, I will try to explain it in another way.
Many Thanks
F.P.
iOS is very restricted in terms of the system behaviors third party applications can influence.
To answer your question bluntly, a third party application could prompt the user to initiate a phone / FaceTime call. Once the call is initiated however, your app would enter a background state and relinquish control to the system. The app would not be able to contribute or read any data related to the system phone / FaceTime call.
iOS 10 introduces a VoIP extension, CallKit, which allows third party apps to use the built in calling UI with a custom protocol. You could implement your own protocol (and host servers for handling the exchange of information) and build an extension to make it feel like a system call. You'd be responsible for all aspects of the custom call protocol and thus reading voices, contributing audio, etc. would all be possible (and up to your implementation).
Outside of iOS 10, you would have to built your own VoIP system and interface entirely from scratch.
For more info on CallKit:
WWDC Enhancing VoIP Apps with CallKit
CallKit Enabled Sample App
I want to write a feature in my app that checks local data daily (at a specified time eg. 12:00pm), and alert if needed. Really, I want something kind of like setTimeout() in Node.js.
Does Trigger.io's API give me a way to 'background' a small check, or fire an event at a specific time? Something via the OS,so that the app doesn't have to be running all the time?
I've searched through the API, but might be using the wrong terminology (as a non-mobile dev).
This isn't something currently supported, mainly because its difficult to provide a consistent experience across Android and iOS.
A common solution to this kind of problem is to have the check performed on a remote server, then use a push notification to notify the user if required. (see http://docs.trigger.io/en/v1.4/partners/parse.html#partner-parse)
The reason doing this on the device is difficult is that on iOS you cannot just run code in the background, it is possible to send a notification to the user at a specific time but this notification has to be set in advance.
Building a multi player iOS game where players compete one against the other. Nature of the game is synchronous. Basically, players either invite each other through facebook, email, etc and then start playing.
We debate what is the best strategy for facilitating the real time communication between players (sending events, etc). Coming from web development, we used comet and long polling which worked great. However, it's not clear what's the best way to achieve that on iOS.
Seems like APN (Apple Push Notifications) is not suitable in our case for two reasons: the delay can be pretty significant, up to few seconds, as far as we understand. Also, using APN requires the user to authorize notifications. If the user doesn't authorize this then it won't be possible to play the game.
Also, we understand Apple's Game Kit (Game Center) can be of value in our case however it's not clear how it interacts with invites through facebook etc. Also, not clear if we need to get into bed with Apple's Game Center and how it'll affect the user experience.
Any guidance on this matter as well as other options that you might think of would be greatly appreciated.
Thanks for your help.
Before you read the rest, a disclaimer: I work for Realtime.co but I do believe I can help here so I'm not trying to "pitch a sale".
If you need to have real time updates, you can check out Realtime (www.realtime.co). It's basically a set of tools for developers to use real time technologies on their projects. It uses websockets but does fallback to whatever the user's browser supports (such as long polling, for example) if you are using a browser (which is not your case, but it's always good to know).
Behind Realtime you have a one-to-one/one-to-many/many-to-many messaging system that will transport your messages to and from your users.
There's a iOS API too which you can use in your project. You can download it here: http://www.xrtml.org/downloads_62.html#ios and check the documentation here: http://docs.xrtml.org/getting_started/hello_message.html#ios.
There's also a plus which is the fact that the Realtime framework is actually cross-platform. This means that you can even have your iOS players to communicate with players using Android, Windows Phone, HTML5, Flash, etc. if you decide on expanding your game to other platforms.
I hope that helps!
I'll just provide some insights on the question.
APN should never be used for synchro communication as for iOS at least, you'll never have both way communication (basically the Apple APN servers are pushing an information to the device).
You should probably play with C sockets in order to open a tunnel (depends if your game is real time or not).
Using the Apple Framework GameKit is great! But might take some time to understand all the functionnalities.
Check out Gree
https://developer.gree.net/en/
Parse:
https://www.parse.com/
Sparrow:
http://gamua.com/sparrow/
There are a few things that your talking about, there is the joining/starting of a game, and then the communication between the players. They are not necessarily related.
You can use game-center and at the same time another framework for facebook, they are not mutually exclusive (but it would be more work.)
Is there any way to handle call events in iPhone? i.e. Log calls and sms in my app, block unwanted numbers, etc. I know the iPhone SDK doesn't provide that but I have been googling this and what I got was an app called iBlackList. Although it runs on jail-broken phones but it does my required functionality. I wonder how? Has anyone idea about how these tasks can be accomplished?
You can do that through private APIs. (Which means that such application will never make it to the AppStore.)