廣告輪撥banner

簡單作法：

直接用imageview給他個animation，

banerArray = [NSArray arrayWithObjects:

                                    [UIImage imageNamed:@"320_70b01.png"],

                                    [UIImage imageNamed:@"320_70b02.png"],

                                    [UIImage imageNamed:@"320_70b03.png"],

                                    [UIImage imageNamed:@"320_70b04.png"],

                                    nil];

這邊傳近來的array就是把uiimage包成array：
之後下面就可以讓他開始動畫了，

-(void)startADBanerWithArray:(NSArray *)array

{

   self.myImageView.animationImages = array ;

    self.myImageView.animationRepeatCount = 0;

    self.myImageView.animationDuration= 8.0;

    [self.myImageView startAnimating];

    

    

}

不過這邊有個小小遺憾，如果我想讓user可以按下去呢？

加入手勢：

UITapGestureRecognizer *tapGestureRecognizer;

    tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)];

    tapGestureRecognizer.numberOfTapsRequired = 1;

    self.myImageView.userInteractionEnabled = YES;//最重要，一定要加

    [self.myImageView addGestureRecognizer:tapGestureRecognizer];

不過，這邊用的方法，如果圖片一多，容易crash，

下面我用timer來處理，而且手勢讓user點下去後，我可以知道確切user點了哪一個圖片，

更smart了

@property (nonatomic, strong) NSArray *bannerImagesArray;

@property (nonatomic ,strong) NSTimer *timer;

@property NSUInteger currentImageIndex;

@property (weak, nonatomic) IBOutlet UIImageView *image;

一樣，把uiimage包成array，丟進來的個方法中：

之後利用timer去換圖片

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    [self setup];

    self.bannerImagesArray = [NSArray arrayWithObjects:

                              [UIImage imageNamed:@"320_70b01.png"],

                              [UIImage imageNamed:@"320_70b02.png"],

                              [UIImage imageNamed:@"320_70b03.png"],

                              [UIImage imageNamed:@"320_70b04.png"],

                              nil];

    

    [self setBannerImagesArray:self.bannerImagesArray];

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

用timer上圖片，先把第一張給他

- (void)setBannerImagesArray:(NSArray *)bannerImagesArray

{

    _bannerImagesArray = bannerImagesArray;

    [self.timer invalidate];

    self.currentImageIndex = 0;

    self.image.image = [self.bannerImagesArray objectAtIndex:self.currentImageIndex];

    self.timer = [NSTimer scheduledTimerWithTimeInterval:1

                                                  target:self

                                                selector:@selector(displayNextImage)

                                                userInfo:nil

                                                 repeats:YES];

    

}

先把手勢加入

- (void)setup

{

    self.image.userInteractionEnabled = YES;

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageClicked)];

    [self.image addGestureRecognizer:tapGesture];

    

    self.bannerImagesArray = nil;

}

這樣就可以知道手勢是點到哪一個圖片了

- (void)imageClicked

{

    NSLog(@"Image clicked index: %lu", (unsigned long)self.currentImageIndex);

}

繼續用timer上圖片給他

- (void)displayNextImage

{

    self.currentImageIndex = (self.currentImageIndex + 1) % self.bannerImagesArray.count;

    NSLog(@"Current Image Index %lu", (unsigned long)self.currentImageIndex);

    self.image.image = [self.bannerImagesArray objectAtIndex:self.currentImageIndex];

}