項目中需要實現(xiàn)再打電話時保存編輯過的內(nèi)容,這就需要對撥打電話時進行監(jiān)聽操作,使用CTCallCenter實現(xiàn)對撥打電話的監(jiān)聽
導(dǎo)入頭文件:

#import <CoreTelephony/CTCallCenter.h>
#import <CoreTelephony/CTCall.h>

申明和實例化:

@property (nonatomic, strong) CTCallCenter *callCenter;

self.callCenter = [[CTCallCenter alloc] init];

回調(diào)方法:

self.callCenter.callEventHandler = ^(CTCall* call) {
        [weakself saveToRealm];//保存到realm
        if ([call.callState isEqualToString:CTCallStateDisconnected]){
            NSLog(@"掛斷");
        }else if ([call.callState isEqualToString:CTCallStateConnected]){
            NSLog(@"已接通");
        }else if([call.callState isEqualToString:CTCallStateIncoming]){
            NSLog(@"來電");
        }else if ([call.callState isEqualToString:CTCallStateDialing]){
            NSLog(@"撥號中");
        }else{
            NSLog(@"未知");
        }
    };