How to Get info about phone calls

Question

I have to develop a mobile application that monitors some info about calls, to limit users of a company to spend too much time with the phone near their ears. After x minutes, it should suggest to use earphones.

1st question: is it possible to monitor data like this? Phonecall time duration, start and end, if it's using earphones, internal or external speaker.. I mean, without using jailbreak or other hackings.

2nd question: is it possible doing this for IOS and Android?

3rt question: Do you know if Ionic has the capability to that?

Thank you.

Answer 1

For Android:

• You can easily get the call history or incoming and outgoing call time. So it is possible in android.

For iOS:

According to your question you want to limit the current calling time of phone near their ears.

So you also do it in iOS by some smartness.

• In iOS 10 a new framework introduces for calling i.e. CallKit.
• First, you have to get all contact in your application.
• So user should call from your app.
• For dialing also add the custom phone dialer.

By Some method of callKit you can do:

1. Add a call observer

   @property ( nonatomic ) CXCallObserver *callObserver;

2. Initialize the call observer:

   • (instancetype)init { self = [super init]; if (self) {

         //Initialize the call observer
         _callObserver = [CXCallObserver new];
         [_callObserver setDelegate:self queue:dispatch_get_main_queue()];
     }
     return self;
     

     }

Add the delegate of call kit

#pragma mark - CXCallObserverDelegate
- (void)callObserver:(CXCallObserver *)callObserver callChanged:(CXCall *)call{
    [self callStateValue:call];
}

#pragma mark - Callkit State
- (void)callStateValue:(CXCall *)call {

    NSLog(@"Call UIID: %@", call.UUID);
    NSLog(@"hasEnded     %@", call.hasEnded? @"YES":@"NO");
    NSLog(@"isOutgoing   %@", call.isOutgoing? @"YES":@"NO");
    NSLog(@"isOnHold     %@", call.isOnHold? @"YES":@"NO");
    NSLog(@"hasConnected %@", call.hasConnected? @"YES":@"NO");

    if (call == nil || call.hasEnded == YES) {
        NSLog(@"CXCallState : Disconnected");
        [timer1 invalidate];
        NSLog(@"%ld",(long)self.duration);
        if(self.duration>1)
        self.duration=1;
    }

    if (call.isOutgoing == YES && call.hasConnected == NO) {
    }

    if (call.isOutgoing == NO  && call.hasConnected == NO && call.hasEnded == NO && call != nil) {
        self.duration = 0;
        NSLog(@"CXCallState : Incoming");
        NSLog(@"Call Details: %@",call);
    }

    if (call.hasConnected == YES && call.hasEnded == NO) {
        NSLog(@"CXCallState : Connected");
    timer1 = [NSTimer scheduledTimerWithTimeInterval:1.0 repeats:YES block:^(NSTimer * _Nonnull timer) {
        self.duration++;
        NSLog(@"%ld",(long)self.duration);
    }];

    }
}

You can get the time duration and also add the condition After x minutes, it should suggest to use earphones.