可变色的动画圆形加载视图。

默认加载视图示例

AnimatedLoadingView *defaultLoadingView = [[AnimatedLoadingView alloc] initWithFrame:self.view.frame];
[self.view addSubview:defaultLoadingView];
[defaultLoadingView start];

可自定义加载视图示例

AnimatedLoadingView *colorChangeLoadingView = [[AnimatedLoadingView alloc] initWithFrame:self.textView.frame bgColor:[[UIColor blackColor] colorWithAlphaComponent:0.5] firstColor:[UIColor greenColor] secondColor:[UIColor purpleColor]];
[self.view addSubview:colorChangeLoadingView];
[colorChangeLoadingView start];

停止加载

[defaultLoadingView stop];
[colorChangeLoadingView stop];