Load nib file as GUI component

CustomView.h

//
//  CustomView.h
//
//  Created by Fang Andy on 12/2/3.
//  Copyright (c) 2012年 Openmouse Studio. All rights reserved.
//

#import <UIKit/UIKit.h>

#define UPLOADING_WORDING @"Uploading %i photo(s)..."

@interface CustomView : UIView
@property (nonatomic, weak) IBOutlet UIActivityIndicatorView *activityIndicatorView;
@property (nonatomic, weak) IBOutlet UILabel *uploadingLabel;
@end

CustomView.m

//
//  CustomView.m
//
//  Created by Fang Andy on 12/2/3.
//  Copyright (c) 2012年 Openmouse Studio. All rights reserved.
//

#import "CustomView.h"

@implementation CustomView
@synthesize activityIndicatorView = _activityIndicatorView;
@synthesize uploadingLabel = _uploadingLabel;
@end

ViewController.h

//
//  ViewController.h
//
//  Created by Fang Andy on 12/1/18.
//  Copyright (c) 2012年 Openmouse Studio. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
@end

ViewController.m

//
//  ViewController.m
//
//  Created by Fang Andy on 12/1/18.
//  Copyright (c) 2012年 Openmouse Studio. All rights reserved.
//

#import "ViewController.h"
#import "CustomView.h"

@implementation ViewController
#pragma mark - View lifecycle
- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    
    NSArray *xibViews = [[NSBundle mainBundle] loadNibNamed:@"CustomView" owner:self options:nil];
    CustomView *customView = nil;
    
    for (id subXib in xibViews) {
        if ([subXib isMemberOfClass:[CustomView class]]) {
            customView = subXib;
        }
    }
    
    [self.view addSubview:customView];
    [customView.activityIndicatorView startAnimating];
    customView.uploadingLabel.text = [NSString stringWithFormat:UPLOADING_WORDING, 2];
}
@end