//声明对象

@property (

nonatomic,

strong) UIActivityIndicatorView *activityindicator;

 

 

self.activityindicator = [[UIActivityIndicatorViewalloc] initWithFrame:CGRectMake((

self.view.frame.size.width-100)/2.0, self.view.frame.size.height/2.0, 100, 100)];

   

self.activityindicator.backgroundColor = [UIColor colorWithWhite:0.5 alpha:0.5];

    //设置风格

   

self.activityindicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;

    //一个布尔值，用于控制在动画停止时是否隐藏接收者

   

self.activityindicator.hidesWhenStopped =

YES;

    //启动

    [

self.activityindicator startAnimating];

    //暂停

    //[

self.activityindicator stopAnimating];

    //状态

  

  //self.activityindicator.isAnimating;

    //设置活动指标的颜色

   

self.activityindicator.color = [UIColor blueColor];

   

   

    [

self.view addSubview:

self.activityindicator];