动态菊花效果---- UIActivityIndicatorView微型化视图的使用

//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