模仿汽车大全的点击一个按钮，会弹出多个按钮，同时，点击背景图，多个按钮动画返回的效果

#import <UIKit/UIKit.h>

@interface RootViewController : UIViewController
{
    UIImageView *iCanImageView;
    UIImageView *menu_carImageView;
    UIImageView *menu_movieImageView;
    UIImageView *menu_setImageView;
    UIImageView *menu_photoImageView;
    BOOL isRonating;
    int count;
}
@end

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    //初始化背景图
    [self initBackgroundView];
    
    
}
#pragma -mark -functions
-(void)initBackgroundView
{
    //隐藏导航条
    self.navigationController.navigationBarHidden=YES;
    
    //设置背景图片
    UIImageView *bgImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"main_bg.png"]];
    bgImage.frame = self.view.bounds;
    
    //背景图添加手势
    UITapGestureRecognizer *bgTgr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(bgClick)];
    [bgImage addGestureRecognizer:bgTgr];
    bgImage.userInteractionEnabled = YES;
    
    [self.view addSubview:bgImage];
    
    
    //背景图上的小图标
    iCanImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ican.png"]];
    iCanImageView.center = CGPointMake(50, 400);
    
    //小图标添加手势
    UITapGestureRecognizer *iCanTgr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(iCanClick)];
    [iCanImageView addGestureRecognizer:iCanTgr];
    iCanImageView.userInteractionEnabled = YES;
    
    
    //弹出的4个设置的小图标
    //车图标
    menu_carImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"menu_car.png"]];
    menu_carImageView.tag = 3;
    menu_carImageView.center = iCanImageView.center;
    
    //视频的图标
    menu_movieImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"menu_movie.png"]];
    menu_movieImageView.tag = 4;
    menu_movieImageView.center = iCanImageView.center;
    
    //图片的图标
    menu_photoImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"]];
    menu_photoImageView.tag = 5;
    menu_photoImageView.center = iCanImageView.center;
    
    //设置的图标
    menu_setImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"menu_set.png"]];
    menu_setImageView.tag = 6;
    menu_setImageView.center = iCanImageView.center;
    
    
    [self.view addSubview:menu_carImageView];
    [self.view addSubview:menu_movieImageView];
    [self.view addSubview:menu_photoImageView];
    [self.view addSubview:menu_setImageView];
    [self.view addSubview:iCanImageView];
    
    
    // 将小图片都添加到数组，最后循环数组为每一个小图片添加点击手势
    NSArray *imageViewArr = [[NSArray alloc] initWithObjects:menu_carImageView,menu_movieImageView,menu_photoImageView,menu_setImageView, nil];
    
    for(UIImageView *view in imageViewArr)
    {
        UITapGestureRecognizer *jumpTo = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(Jump:)];
        view.userInteractionEnabled = YES;
        [view addGestureRecognizer:jumpTo];
    }
    
    // 判断图标是否旋转,还有小图标是否飞出
    isRonating = NO;
    
    // 用于计数小图片旋转的时间
    count = 0;
}
#pragma -mark -doClickActions
//点击iCan图标，弹出图标
-(void)iCanClick
{
    CGAffineTransform trans = iCanImageView.transform;
    if(isRonating == NO)
    {
        CGAffineTransform newTrans = CGAffineTransformRotate(trans, -2*M_1_PI);
        [UIView animateWithDuration:0.3 animations:^{
            iCanImageView.transform = newTrans;
            [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(GoOut:) userInfo:nil repeats:YES];
        }];
        isRonating = YES;
    }
    else
    {
        CGAffineTransform newTrans = CGAffineTransformRotate(trans, 2*M_1_PI);
        [UIView animateWithDuration:0.3 animations:^{
            iCanImageView.transform = newTrans;
            [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(Back:) userInfo:nil repeats:YES];
        }];
        isRonating = NO;
    }
}
//点击背景图，图标旋转回原位
-(void)bgClick
{
    if(isRonating == YES)
    {
        CGAffineTransform trans = iCanImageView.transform;
        CGAffineTransform newTrans = CGAffineTransformRotate(trans, 2*M_1_PI);
        [UIView animateWithDuration:0.3 animations:^{
            iCanImageView.transform = newTrans;
            [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(Back:) userInfo:nil repeats:YES];
        }];
        isRonating = NO;
    }
}
//弹出的动作
-(void)GoOut:(id)sender
{
    NSTimer *tiemr = (NSTimer *)sender;
    count++;
    [UIView animateWithDuration:0.2 animations:^{
        menu_carImageView.center = [self location:CGPointMake(-10, 128)];
    }];
    if(count>2)
        [UIView animateWithDuration:0.2 animations:^{
            menu_movieImageView.center = [self location:CGPointMake(45, 100)];
        }];
    if(count>3)
        [UIView animateWithDuration:0.2 animations:^{
            menu_photoImageView.center = [self location:CGPointMake(88, 55)];
        }];
    if(count>4)
        [UIView animateWithDuration:0.2 animations:^{
            menu_setImageView.center = [self location:CGPointMake(105, -8)];
        }];
    if(count>5)
    {
        count = 0;
        [tiemr invalidate];
    }
}
//回归原位的动作
-(void)Back:(id)sender;
{
    NSTimer *timer = (NSTimer *)sender;
    count ++;
    [UIView animateWithDuration:0.2 animations:^{
        [self Ronate:menu_setImageView];
    }];
    if(count>3)
        [UIView animateWithDuration:0.2 animations:^{
            [self Ronate:menu_photoImageView];
        }];
    if(count>6)
        [UIView animateWithDuration:0.2 animations:^{
            menu_setImageView.center = iCanImageView.center;
        }];
    if(count>8)
        [UIView animateWithDuration:0.2 animations:^{
            menu_photoImageView.center = iCanImageView.center;
        }];
    if(count>5)
        [UIView animateWithDuration:0.2 animations:^{
            [self Ronate:menu_movieImageView];
        }];
    if(count>9)
        [UIView animateWithDuration:0.2 animations:^{
            menu_movieImageView.center = iCanImageView.center;
        }];
    if(count >7)
        [UIView animateWithDuration:0.2 animations:^{
            [self Ronate:menu_carImageView];
        }];
    if(count>10)
        [UIView animateWithDuration:0.2 animations:^{
            menu_carImageView.center = iCanImageView.center;
        }];
    if(count>11)
    {
        menu_carImageView.transform = CGAffineTransformMakeRotation(0);
        menu_movieImageView.transform = CGAffineTransformMakeRotation(0);
        menu_photoImageView.transform = CGAffineTransformMakeRotation(0);
        menu_setImageView.transform = CGAffineTransformMakeRotation(0);
        count = 0;
        [timer invalidate];
    }
}
-(CGPoint)location:(CGPoint)p
{
    CGFloat x = CGRectGetMaxX(iCanImageView.frame);
    CGFloat y = iCanImageView.center.y;
    CGPoint pp = CGPointMake(x+p.x+20, y-p.y-10);
    return pp;
}
-(void)Ronate:(UIImageView *)view
{
    view.transform = CGAffineTransformMakeRotation(360.0f*count);
}
// 界面跳转
-(void)Jump:(id)sender
{
    UIGestureRecognizer *t = (UIGestureRecognizer *)sender;
    UIImageView *view = (UIImageView *)t.view;
    UIEdgeInsets set;
    set.top = 5.0f;
    set.bottom = 5.0f;
    set.left = 5.0f;
    set.right = 5.0f;
    if(view.tag == 3)
    {
         [self Scale:view];
     }
    else if(view.tag == 4)
    {
        [self Scale:view];
     }
    else if(view.tag == 5)
    {
        [self Scale:view];
    }
    else
    {
        [self Scale:view];
    }
}

// 放大和缩小图片
-(void)Scale:(UIImageView *)view
{
    if(view.tag == 3)
    {
        CGFloat scale = 1.5;
        CGAffineTransform trans = view.transform;
        [UIImageView animateWithDuration:0.5 animations:^{
            CGAffineTransform newTrans = CGAffineTransformScale(trans, scale, scale);
            CGAffineTransform newTrans1 = CGAffineTransformScale(trans, 0.5, 0.5);
            view.transform = newTrans;
            menu_movieImageView.transform = newTrans1;
            menu_photoImageView.transform = newTrans1;
            menu_setImageView.transform = newTrans1;
            view.alpha = 0.1;
            menu_movieImageView.alpha = 0.1;
            menu_photoImageView.alpha = 0.1;
            menu_setImageView.alpha = 0.1;
        } completion:^(BOOL finished) {
            NSLog(@"--跳转到第一个图标的页面---");
        }];
    }
    else if(view.tag == 4)
    {
        CGFloat scale = 1.5;
        CGAffineTransform trans = view.transform;
        [UIImageView animateWithDuration:0.5 animations:^{
            CGAffineTransform newTrans = CGAffineTransformScale(trans, scale, scale);
            CGAffineTransform newTrans1 = CGAffineTransformScale(trans, 0.5, 0.5);
            view.transform = newTrans;
            menu_carImageView.transform = newTrans1;
            menu_photoImageView.transform = newTrans1;
            menu_setImageView.transform = newTrans1;
            view.alpha = 0.1;
            menu_carImageView.alpha = 0.1;
            menu_photoImageView.alpha = 0.1;
            menu_setImageView.alpha = 0.1;
        } completion:^(BOOL finished) {
            NSLog(@"--跳转到第二个图标的页面---");

        }];
    }
    else if(view.tag == 5)
    {
        CGFloat scale = 1.5;
        CGAffineTransform trans = view.transform;
        [UIImageView animateWithDuration:0.5 animations:^{
            CGAffineTransform newTrans = CGAffineTransformScale(trans, scale, scale);
            CGAffineTransform newTrans1 = CGAffineTransformScale(trans, 0.5, 0.5);
            view.transform = newTrans;
            menu_movieImageView.transform = newTrans1;
            menu_carImageView.transform = newTrans1;
            menu_setImageView.transform = newTrans1;
            view.alpha = 0.1;
            menu_movieImageView.alpha = 0.1;
            menu_carImageView.alpha = 0.1;
            menu_setImageView.alpha = 0.1;
        } completion:^(BOOL finished) {
            NSLog(@"--跳转到第三个图标的页面---");

        }];
    }
    else
    {
        CGFloat scale = 1.5;
        CGAffineTransform trans = view.transform;
        [UIImageView animateWithDuration:0.5 animations:^{
            CGAffineTransform newTrans = CGAffineTransformScale(trans, scale, scale);
            CGAffineTransform newTrans1 = CGAffineTransformScale(trans, 0.5, 0.5);
            view.transform = newTrans;
            menu_movieImageView.transform = newTrans1;
            menu_photoImageView.transform = newTrans1;
            menu_carImageView.transform = newTrans1;
            view.alpha = 0.1;
            menu_movieImageView.alpha = 0.1;
            menu_photoImageView.alpha = 0.1;
            menu_carImageView.alpha = 0.1;
        } completion:^(BOOL finished) {
            NSLog(@"--跳转到第四个图标的页面---");

        }];
        
    }
}