iOS来电监控

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iOS来电监控

实现方法

1) 添加框架和引用

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import CoreTelephony

2) 定义全局变量

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var callCenter:CTCallCenter!;
``` 

### 3) 实例与监听

```swift
self.callCenter = CTCallCenter();
self.callCenter.callEventHandler = {
    (call:CTCall) in
    if(call.callState == CTCallStateDisconnected){
        print("断开通话")
    }else if(call.callState == CTCallStateConnected){
        print("正在通话")
    }else if(call.callState == CTCallStateIncoming){
        print("来电")
    }else if(call.callState == CTCallStateDialing){
        print("正在拨号")
    }
}