我可以在iPhone上使用一个简单的开源HUD（类似于MBProgressHUD）吗？

Question

I don't want to use MBProgressHUD because of the overhead for threads and managing background asks. I don't need a background task handler. Just a simple, thread safe library that deals with views/windows should do the job. Also without creating an instance from different view controllers and adding/removing it, I think its too much work for the consumer. I should be able to call it from anywhere in the code. Something like this:
[SimpleHud getInstance] pop];
[SimpleHud getInstance] pop withTitle:@"Doing stuff"];
[SimpleHud getInstanca] hide];

Answer 1

I like David Sinclair's DSActivityView . It's lighter than MBProgressHUD, though not featherweight. Worth taking a look.

Answer 2

This is what I come up with:

   -(void)pop:(NSString *)text {
        [self performSelectorOnMainThread:@selector(popLightBox:) withObject:text waitUntilDone:YES];
    }

    -(void)hide {
        [self performSelectorOnMainThread:@selector(hideLightBox) withObject:nil waitUntilDone:YES];
    }

    -(void)popLightBox:(NSString *)text
    {
        NSArray *windows =  [[UIApplication sharedApplication] windows];    
        NSInteger last = [windows count]-1;
        if (last < 0) return;
        UIWindow *currentWindow = [windows objectAtIndex:last];
        [currentWindow addSubview:self.view];
        if (text == nil) {
            self.loadingLabel.text = __DEFAULT_LOADING_TEXT__;      
        }else {
            self.loadingLabel.text = text;
        }
    }

    -(void)hideLightBox
    {
        [self.view removeFromSuperview];
    }

Class is a simple UIViewController.