ps:功能——随机播放系统音效，带震动效果，并提供弹出框确认，目的是给应用提供找手机发出声音的功能

1.便捷创建单例

//  简便创建单例的宏

#ifndef DLInterviewTest_DLSingleton_h
#define DLInterviewTest_DLSingleton_h

// .h文件
#define DLSingletonH(name) + (instancetype)shared##name;

// .m文件
#define DLSingletonM(name) \
static id _instance; \
\
+ (instancetype)allocWithZone:(struct _NSZone *)zone \
{ \
static dispatch_once_t onceToken; \
dispatch_once(&onceToken, ^{ \
_instance = [super allocWithZone:zone]; \
}); \
return _instance; \
} \
\
+ (instancetype)shared##name \
{ \
static dispatch_once_t onceToken; \
dispatch_once(&onceToken, ^{ \
_instance = [[self alloc] init]; \
}); \
return _instance; \
} \
\
- (id)copyWithZone:(NSZone *)zone \
{ \
return _instance; \
}

#endif

2.核心代码

1)头文件

#import <Foundation/Foundation.h>

@interface ALAudioTool : NSObject
DLSingletonH(ALAudioTool)
- (void)showMyPhone;
@end

2)具体实现

#import "ALAudioTool.h"
#import <AudioToolbox/AudioToolbox.h>
#import <UIKit/UIKit.h>

@interface ALAudioTool()
@property (nonatomic,assign) BOOL isNotRepeat;/**< 判断是否重复播放 */
@property (nonatomic,strong) NSArray *audioSourceArray;/**< 声源数组 */
@property (nonatomic,copy) NSString *audioID;/**< 声源ID */
@end

@implementation ALAudioTool
DLSingletonM(ALAudioTool)


- (void)setIsNotRepeat:(BOOL)isNotRepeat{
    _isNotRepeat = isNotRepeat;
    
    if (isNotRepeat) {
        [[UIApplication sharedApplication] setIdleTimerDisabled:NO];
        SystemSoundID soundID = [self.audioID intValue];
        [self stopAlertSoundWithSoundID:soundID];
        //2.发送已收到提示的反馈命令  表示已经找到手机
        [[ALCommandTool shareTool] reactionFindMobilePhone:^(id responseObj) {
            NSLog(@"手机找到了");
        }];
    }
}


- (NSArray *)audioSourceArray{
    if (!_audioSourceArray) {
        _audioSourceArray = [NSArray arrayWithObjects:@"1000",@"1001",@"1002",@"1003"@"1004",@"1005",@"1006",@"1007",@"1008",@"1009",@"1010",@"1011",@"1012",@"1013",@"1014",@"1015",@"1016",@"1020",@"1021",@"1022",@"1023",@"1024",@"1025",@"1026",@"1027",@"1028",@"1029",@"1030",@"1031",@"1032",@"1033",@"1034",@"1035",@"1036",@"1050",@"1051",@"1052",@"1053",@"1054",@"1055",@"1056",@"1057",@"1070",@"1071",@"1072",@"1073",@"1074",@"1075",@"1100",@"1101",@"1102",@"1103",@"1104",@"1105",@"1106",@"1107",@"1108",@"1109",@"1110",@"1111",@"1112",@"1113",@"1114",@"1115",@"1116",@"1117",@"1118",@"1150",@"1151",@"1152",@"1153",@"1154",@"1200",@"1201",@"1202",@"1203",@"1204",@"1205",@"1206",@"1207",@"1208",@"1209",@"1210",@"1211",@"1254",@"1255",@"1256",@"1257",@"1258",@"1259",@"1300",@"1301",@"1302",@"1303",@"1304",@"1305",@"1306",@"1307",@"1308",@"1309",@"1310",@"1311",@"1312",@"1313",@"1314",@"1315",@"1320",@"1321",@"1322",@"1323",@"1324",@"1325",@"1326",@"1327",@"1328",@"1329",@"1330", nil];
    }
    return _audioSourceArray;
}


//获取一个随机整数，范围在[from,to]，包括from，包括to
-(NSInteger)getRandomNumber:(NSInteger)from to:(NSInteger)to{
    return (NSInteger)(from + (arc4random() % (to - from + 1)));
}


- (void)showMyPhone{
    self.isNotRepeat = NO;
    self.audioID = self.audioSourceArray[[self getRandomNumber:0 to:(self.audioSourceArray.count - 1)]];
    [self addAlertView];
    [self playSystemAudio];
}


void soundCompleteCallback(SystemSoundID sound,void * clientData) {
    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
    AudioServicesPlaySystemSound(sound);  // 播放系统声音 这里的sound是我自定义的，不要copy哈，没有的
}

- (void)playSystemAudio{
    //1.收到手机响应结果，播放一段音频
    if (!self.isNotRepeat) {
        SystemSoundID soundID = [self.audioID intValue];
        AudioServicesAddSystemSoundCompletion(soundID, NULL, NULL, soundCompleteCallback, NULL);
        AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
        AudioServicesPlaySystemSound(soundID);
        [[UIApplication sharedApplication] setIdleTimerDisabled:YES];
    }
}

-(void)stopAlertSoundWithSoundID:(SystemSoundID)sound {
    AudioServicesDisposeSystemSoundID(kSystemSoundID_Vibrate);
    AudioServicesDisposeSystemSoundID(sound);
    AudioServicesRemoveSystemSoundCompletion(sound);
}

-(void)addAlertView{
    UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:
                              UBTLocalizedString(@"phone_search_title") message:UBTLocalizedString(@"phone_search_subtitle") delegate:self
                                             cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil];
    [alertView show];
}

#pragma mark - Alert view delegate
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:
(NSInteger)buttonIndex{
    switch (buttonIndex) {
        case 0:
            NSLog(@"Cancel button clicked");
            break;
        case 1:
            NSLog(@"OK button clicked");
            //停止播放
            self.isNotRepeat = YES;
            break;
            
        default:
            break;
    }
}


@end

3.使用方式

[[ALAudioTool sharedALAudioTool] showMyPhone];

4.参考

http://www.cnblogs.com/Xfsrn/p/4997476.html