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.)
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I designed an application screen for incoming and outgoing calls, so now the issue is that I want to show my screens on while I get an incoming and outgoing call on the device so how can I do that.is that's possible so tell me how?
This is not possible.
You can not replace core features of iOS with your own app.
As MadProgrammer stated in his comment, CallKit allows you to use iOS call screen in your app. Not the other way around.
CallKit : Display the system-calling UI for your app's VoIP services, and coordinate your calling services with other apps and the system.
If you are using CallKit, its impossible so far to customize it or replace it.
You can do it, if your App has its own feature of Calling, say Many apps has WebRTC solutions or other VoIP Solutions.
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
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
I want to develop application to show user video or image when someone is calling me. I know it is possible on android, but i don't know about ios platform. Is it possible to do such an application ?
Apps can only modify things within their own sandbox. The incoming call screen, is part of the phone app and therefore can't be modified. The only way to do this would be on a jailbroken iPhone, and it would be quite difficult.