UIActivityIndi​​catorView 不适用于 io5

Question

加载信息时，我的应用程序中有 UIActivityIndi​​catorView 。所以在模拟器 ios 4.3 中它工作正常，但在 ios5.0 中我看不到它。怎么了？如果您需要代码，请告诉我。谢谢

Answer 1

-(void)Viewdidload
{
 UIActivityIndicatorView *activity = [[UIActivityIndicatorView alloc]  initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];

        [activity setFrame:CGRectMake(0, 0, 20, 20)];

        [self.view addSubview:activity];


}  
-(void)PressLoginBtn
{
  [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

[activity startAnimating];

// call another controller

}

- (void)viewWillDisappear:(BOOL)animated 
{
  [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
[activity stopAnimating];
}