IOS - 网络指示器

#pragma mark Activity methods

- (void)openActivity

{

// 添加网络指示器

activityIV = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];

[activityIV setFrame:CGRectMake(0, 0, 30, 30)];

[activityIV setCenter:CGPointMake(self.view.center.x, self.view.center.y)];

[self.view addSubview:activityIV];

[activityIV setHidesWhenStopped:YES];

[activityIV setHidden:NO];

[activityIV startAnimating];

// 在状态栏显示有网络请求的提示器

[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;

}

- (void)closeActivity

{

// 关闭网络指示器

[activityIV setHidden:YES];

[activityIV stopAnimating];

// 在状态栏关闭有网络请求的提示器

[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

}