ios 程序内监听系统来电

导入头文件

#import <CallKit/CXCallObserver.h>
#import <CallKit/CXCall.h>

遵循代理

CXCallObserverDelegate

创建实例

@property(nonatomic, strong) CXCallObserver *callCenter; 

初始化

    self.callCenter = [CXCallObserver new];
    [self.callCenter setDelegate:self queue:dispatch_get_main_queue()];

代理事件

//MARK: CXCallObserverDelegate
- (void)callObserver:(CXCallObserver *)callObserver callChanged:(CXCall *)call {
    NSLog(@"outgoing :%d  onHold :%d   hasConnected :%d   hasEnded :%d",call.outgoing,call.onHold,call.hasConnected,call.hasEnded);
    /*
     拨打:  outgoing :1  onHold :0   hasConnected :0   hasEnded :0
     拒绝:  outgoing :1  onHold :0   hasConnected :0   hasEnded :1
     链接:  outgoing :1  onHold :0   hasConnected :1   hasEnded :0
     挂断:  outgoing :1  onHold :0   hasConnected :1   hasEnded :1
     对方未接听时挂断：  outgoing :1  onHold :0   hasConnected :0   hasEnded :1
     
     新来电话:    outgoing :0  onHold :0   hasConnected :0   hasEnded :0
     保留并接听:  outgoing :1  onHold :1   hasConnected :1   hasEnded :0
     另一个挂掉:  outgoing :0  onHold :0   hasConnected :1   hasEnded :0
     保持链接:    outgoing :1  onHold :0   hasConnected :1   hasEnded :1
     对方挂掉:    outgoing :0  onHold :0   hasConnected :1   hasEnded :1
     */
}