iOS开发，系统自带表情的获取

//将数字转为
#define EMOJI_CODE_TO_SYMBOL(x) ((((0x808080F0 | (x & 0x3F000) >> 4) | (x & 0xFC0) <<10) | (x & 0x1C0000) <<18) | (x & 0x3F) <<24);

- (void)viewDidLoad {
    [super viewDidLoad];

    //单独调用
    int sym = EMOJI_CODE_TO_SYMBOL(0x1F600);
    NSString *emoT = [[NSString alloc] initWithBytes:&sym length:sizeof(sym) encoding:NSUTF8StringEncoding];
    NSLog(@"arr==%@",emoT);

    //获取数组
    NSArray *arrEmotion = [self defaultEmoticons];
    for (NSString *str in arrEmotion) {
        NSLog(@"===%@",str);
    }
}

//获取默认表情数组
- (NSArray *)defaultEmoticons {
    NSMutableArray *array = [NSMutableArray new];
    for (int i=0x1F600; i<=0x1F64F; i++) {
        if (i <0x1F641 || i > 0x1F644) {
            int sym = EMOJI_CODE_TO_SYMBOL(i);
            NSString *emoT = [[NSString alloc] initWithBytes:&sym length:sizeof(sym) encoding:NSUTF8StringEncoding];
            [array addObject:emoT];
        }
    }
    return array;
}

2015-03-03 18:30:11.251 MyTest02[5948:3164472] arr==
iOS开发，系统自带表情的获取