// 调用展示
self.sphereView = [[YoungSphere alloc] initWithFrame:CGRectMake(20, 200, 340, 320)];

 NSMutableArray *array = [[NSMutableArray alloc] initWithCapacity:0];

for (NSInteger i = 0; i < 30; i ++) {

self.btn = [UIButton buttonWithType:UIButtonTypeSystem];

[_btn setBackgroundImage:[UIImage imageNamed:@"dog"] forState:(UIControlStateNormal)];

_btn.frame = CGRectMake(0, 0, 60, 60);

[_btn addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

[array addObject:_btn];

 [_sphereView addSubview:_btn];

}

[_sphereView setCloudTags:array];

_sphereView.backgroundColor = [UIColor whiteColor];

[self.view addSubview:_sphereView];