iOS电话监控

iOS SDK提供了CoreTelephony.framework框架来处理一些关于电话的API。

首先

@import CoreTelephony; 

其次

@property (nonatomic, strong) CTCallCenter *callCenter;

一定要强引用，否则会被释放导致不起作用

最后

 self.callCenter = [[CTCallCenter alloc] init];
 
 
self.callCenter.callEventHandler = ^(CTCall* call) {
    if (call.callState == CTCallStateIncoming) {
        NSLog(@"来电");
    }else if (call.callState == CTCallStateDialing) {
        NSLog(@"呼出");
    }else if (call.callState == CTCallStateConnected) {
        NSLog(@"接通");
    }else if (call.callState == CTCallStateDisconnected) {
        NSLog(@"断开");
    };
};
 
 

该回调为子线程回调，所以如果需要处理UI，切记回到主线程