UIApplication+NetworkActivity

UIApplication+NetworkActivity.h

//
//  UIApplication+NetworkActivity.h
//
//  Created by Christopher Bowns on 4/11/12.
//  Original implementation: http://stackoverflow.com/a/6978817/774
//  Copyright (c) 2012 Mechanical Pants Software
//

#import <UIKit/UIKit.h>

@interface UIApplication (NetworkActivity)

- (void)showNetworkActivityIndicator;
- (void)hideNetworkActivityIndicator;

@end

UIApplication+NetworkActivity.m

//
//  UIApplication+NetworkActivity.m
//
//  Created by Christopher Bowns on 4/11/12.
//  Original implementation: http://stackoverflow.com/a/6978817/774
//  Copyright (c) 2012 Mechanical Pants Software
//

#import "UIApplication+NetworkActivity.h"

static NSInteger activityCount = 0;

@implementation UIApplication (NetworkActivity)

- (void)showNetworkActivityIndicator {
	@synchronized ([UIApplication sharedApplication]) {
		if (activityCount == 0) {
			[self setNetworkActivityIndicatorVisible:YES];
		}
		activityCount++;
	}
}

- (void)hideNetworkActivityIndicator {
	@synchronized ([UIApplication sharedApplication]) {
		activityCount--;
		if (activityCount <= 0) {
			[self setNetworkActivityIndicatorVisible:NO];
		}
		if (activityCount < 0) {
			NSLog(@"%s fell to a negative activityCount!", __func__);
			activityCount = 0;
		}
	}
}

@end