WKWebView load request with completion block

WKWebView+Complete.h

//
//  WKWebview+Complete.h
//  partyface
//
//  Created by Brian Olencki on 3/26/17.
//  Copyright © 2017 Brian Olencki. All rights reserved.
//

#import <WebKit/WebKit.h>

@interface WKWebView (Complete)
- (WKNavigation *)loadRequest:(NSURLRequest *)request complete:(void(^)())complete;
@end

WKWebView+Complete.m

//
//  WKWebview+Complete.m
//  partyface
//
//  Created by Brian Olencki on 3/26/17.
//  Copyright © 2017 Brian Olencki. All rights reserved.
//

#import "WKWebView+Complete.h"

@implementation WKWebView (Complete)
- (WKNavigation *)loadRequest:(NSURLRequest *)request complete:(void (^)())complete {
    WKNavigation *navigation = [self loadRequest:request];
    
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void){
        while (self.isLoading) {
            [NSThread sleepForTimeInterval:0];
        }
        dispatch_async(dispatch_get_main_queue(), ^(void){
            complete();
        });
    });
    
    return navigation;
}
@end