//此处为动态菊花动画
UIActivityIndicatorView *tableFootActivityIndicatorView = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(75.0f, 10.0f, 20.0f, 20.0f)];
[tableFootActivityIndicatorView setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
[tableFootActivityIndicatorView startAnimating];
此处将菊花添加到你想要添加的视图
动态菊花效果---- UIActivityIndicatorView微型化视图的使用
原文：http://blog.csdn.net/u013082522/article/details/18311853
