[ios] 배열(NSArray) 연산과 간단한 애니메이션(split images)

NSArray *iconImages = [NSArray arrayWithObjects:
    [UIImage imageNamed:@"00_splash_loding_icon_01"],
    [UIImage imageNamed:@"00_splash_loding_icon_02"],
    [UIImage imageNamed:@"00_splash_loding_icon_03"],
    [UIImage imageNamed:@"00_splash_loding_icon_04"],
    [UIImage imageNamed:@"00_splash_loding_icon_05"],
    [UIImage imageNamed:@"00_splash_loding_icon_06"],
    [UIImage imageNamed:@"00_splash_loding_icon_07"],
    [UIImage imageNamed:@"00_splash_loding_icon_08"],nil];

NSArray *charImages = [NSArray arrayWithObjects:
    [UIImage imageNamed:@"00_splash_loding_char_01"],
    [UIImage imageNamed:@"00_splash_loding_char_02"],
    [UIImage imageNamed:@"00_splash_loding_char_03"],
    [UIImage imageNamed:@"00_splash_loding_char_04"],
    [UIImage imageNamed:@"00_splash_loding_char_05"],
    [UIImage imageNamed:@"00_splash_loding_char_06"],nil];

NSArray *animationImages =
    (arc4random()%2 > 0)
     ? [iconImages arrayByAddingObjectsFromArray:charImages]
     : [charImages arrayByAddingObjectsFromArray:iconImages];

loadingActivityIndicator_ =
    [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 24, 24)]; // 34x35

loadingActivityIndicator_.animationDuration = 2.0;
loadingActivityIndicator_.animationRepeatCount = 0;
loadingActivityIndicator_.animationImages = animationImages;
loadingActivityIndicator_.contentMode = UIViewContentModeScaleAspectFit;
[loadingActivityIndicator_ setCenter:activityPt];
[containerView_ addSubview:loadingActivityIndicator_];

//애니메이션 시작
[loadingActivityIndicator_ startAnimating];

//애니메이션 정지
[loadingActivityIndicator_ stopAnimating];