如何以编程方式检测呼入 [英] How to detect call incoming programmatically

问题描述

我需要我的应用程序在有电话时发送通知（来电，已连接，通话结束）
我通过通知注册了我的viewController。

I need my app to send a notification when there is a call (incoming call, connected, call ended) I registered my viewController with notification.

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(callReceived:) name:CTCallStateIncoming object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(callEnded:) name:CTCallStateDisconnected object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(callConnected:) name:CTCallStateConnected object:nil];

我还提出了一种检查通话状态的方法

I also made a method to check call state

-(IBAction)checkForCall:(id)sender{
    NSLog(@"call state %@ id %@",call.callState,call.callID);
    CTCallCenter *callCenter = [[CTCallCenter alloc] init];
    callCenter.callEventHandler = ^(CTCall* call){
        if (call.callState == CTCallStateDisconnected)
        {
            NSLog(@"Call has been disconnected");

        }
        else if (call.callState == CTCallStateConnected)
        {
            NSLog(@"Call has just been connected");

        }
        else if(call.callState == CTCallStateIncoming)
        {
            NSLog(@"Call is incoming");

        }
        else
        {
            NSLog(@"None of the conditions");
        }
    };
}

但这都不起作用。请帮助我。

But none of this works. Please help me.

哪里出错？是否有任何代码告诉如何使用核心电话？

Where is the mistake? Is there any code which tells how to use core telephony?

推荐答案

使用此

Appdelegate.h

Appdelegate.h

#import <CoreTelephony/CTCallCenter.h>
#import <CoreTelephony/CTCall.h>
...
@property (nonatomic, strong) CTCallCenter* callCenter;

AppDelegate.m

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{  
   .... 
  self.callCenter = [[CTCallCenter alloc] init];
  [self handleCall];
   .... 
}

-(void)handleCall
{
    self.callCenter.callEventHandler = ^(CTCall *call){

       if ([call.callState isEqualToString: CTCallStateConnected])
       {
          //NSLog(@"call stopped");
       }
       else if ([call.callState isEqualToString: CTCallStateDialing])
       {
        }
       else if ([call.callState isEqualToString: CTCallStateDisconnected])
       {
          //NSLog(@"call played");
        }
       else if ([call.callState isEqualToString: CTCallStateIncoming])
       {
           //NSLog(@"call stopped");
       }
     };
  }

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