仿电视关机动画

+(void)animateOut:(UIView )theView bView:(UIView)bview
{
[UIViewanimateWithDuration:0.5animations:^{
theView.transform =CGAffineTransformMakeScale(1,0.005);
} completion:^(BOOL finished){
//黑屏2s
myView *view = [[myViewalloc]initWithFrame:[UIScreenmainScreen].bounds];
view.center = bview.center;

 [bview addSubview:view];

 [UIViewanimateWithDuration:0.31animations:^{
   theView.transform =CGAffineTransformMakeScale(0,0);
   view.transform =CGAffineTransformMakeScale(1,0.0000001);
    [UIViewanimateWithDuration:10animations:^{
    }];
         //退出
  dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    [theView removeFromSuperview];
    exit(0);
  });
}];

}];
}