Omar Muwahed

My name is Omar muwahed I am Freelance Web and iOS Developer

[i-omar-blog]

how to Stop UIWebView from “bouncing” vertically?

for (id subview in webView.subviews)

  if ([[subview class] isSubclassOfClass: [UIScrollView class]])

    ((UIScrollView *)subview).bounces = NO;

[i-omar-blog]

How to add UITapGestureRecognizer in UIScrollView subview

- (void)loadView {

    [super loadView];

    UIImage *myImage = [UIImage imageNamed:@"img1.jpg"];

    imageView = [[UIImageView alloc] initWithImage:myImage];

    [myImage release];

    // add gesture recognizers to the image view

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];

    [imageView addGestureRecognizer:singleTap];

    [singleTap release];

    [imageScrollView setContentSize:CGSizeMake(imageView.frame.size.width, imageView.frame.size.height)];

    [imageScrollView setCanCancelContentTouches:YES];

    [imageView setUserInteractionEnabled:YES];

    [imageScrollView addSubview:imageView]; 

}

- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer {

    NSLog(@"sinlgeTap called"); 

}

[i-omar-blog]

Groundhog Day

Groundhog Day

[i-omar-blog]

كيف تتعامل مع موظف متأخر في تسليم المشروع

هناك اكثر من طريقه ممكن ان تتعامل من خلالها مع موظف متأخر في تسليم المشروع

ولكن عندما تكون الحالة مثالية حيث ترى موظف متأخر يحاول انهاء العمل لا تأتي اليه و تقول لا يمكنك انهاء المشروع و تقوم بتوبيخه و تظن نفسك انك تشجعه،  لن يتشجع الموظف بل سيقوم بإغلاق جهازه و الذهاب للبيت او مكان لكتابة مقاله ، مثل هذا 

الحل في ظني ومن تجاربي مع شركات كان العمل فيها مرهق و طويل ان تقول له بالتوفيق و تشجعه و تقول له هل تريد ان نقدم طعام العشاء على حساب شركة و في نهاية المشروع تقوم بتنويه انه تأخر المشروع ولكن تقول ان الشباب قامو بالواجب الذي عليهم و زيادة هذا سيؤدي لكسب عقل وقلب الموظف الذي تريد ان تحصل عليه ان كنت تريد ذلك   

[i-omar-blog]

How to Delete All Objects in CoreData

- (void) deleteAllObjects: (NSString *) entityDescription  {

    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];

    NSEntityDescription *entity = [NSEntityDescription entityForName:entityDescription inManagedObjectContext:self.managedObjectContext];

    [fetchRequest setEntity:entity];

    NSError *error;

    NSArray *items = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];

    [fetchRequest release];

    for (NSManagedObject *managedObject in items) {

        [self.managedObjectContext deleteObject:managedObject];

        NSLog(@"%@ object deleted",entityDescription);

    }

    if (![self.managedObjectContext save:&error]) {

        NSLog(@"Error deleting %@ - error:%@",entityDescription,error);

    }

}

[i-omar-blog]

how to add corner Radius to UIView like UITextView or UIImageView

#import <QuartzCore/QuartzCore.h>

  self.textView.clipsToBounds = YES;

  self.textView.layer.cornerRadius = 10.0f;

[i-omar-blog]

how to set set Background Image for UITabBar

-(void)setbgImage{

    UIImage *bgimage =[UIImage imageNamed:@"tab.png"];

    if([self respondsToSelector:@selector( setBackgroundImage:)])

        [self setBackgroundImage:bgimage];

    else{

        CGRect frame = CGRectMake(0.0, 0, self.bounds.size.width, 48);

        UIImageView *imageView = [[UIImageView alloc]initWithImage:bgimage];

        imageView.frame= frame;

        [self insertSubview:imageView atIndex:0];

        [imageView release];

    }

[i-omar-blog]

How to create a UITableViewCell with a transparent background

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {

cell.backgroundColor=[UIColor clearColor];

cell.backgroundView.backgroundColor =[UIColor clearColor];

}

[i-omar-blog]

How to know if the current Device is iPad

[[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad

[i-omar-blog]

How to get keyboard Animation Duration

- (NSTimeInterval)keyboardAnimationDurationForNotification:(NSNotification*)notification

{

    NSDictionary* info = [notification userInfo];

    NSValue* value = [info objectForKey:UIKeyboardAnimationDurationUserInfoKey];

    NSTimeInterval duration = 0;

    [value getValue:&duration];

    return duration;

}

http://stackoverflow.com/questions/1419221/what-is-the-iphones-default-keyboard-animation-rate

[i-omar-blog]

animateWithDuration

- (IBAction)onTap:(id)sender {

    BOOL isHidden =self.nextprevView.hidden ;

    if (self.nextprevView.hidden) {

         self.nextprevView.alpha=0.0f;

    }

    [UIView  animateWithDuration:0.5 animations:^{ 

        if (isHidden) 

            self.nextprevView.hidden = NO;

        if (self.nextprevView.alpha == 0.0f) 

             self.nextprevView.alpha=1.0f;

        else

             self.nextprevView.alpha=0.0f;

    } completion:^(BOOL  completed){

        if (!isHidden) 

            self.nextprevView.hidden = YES;

    }];

}

[i-omar-blog]

How to save in coredata with out duplication

+ (Photo *)photoWithFlickrData:(NSDictionary *)flickrData inManagedObjectContext:(NSManagedObjectContext *)context

{

Photo *photo = nil;

NSFetchRequest *request = [[NSFetchRequest alloc] init];

request.entity = [NSEntityDescription entityForName:@"Photo" inManagedObjectContext:context];

request.predicate = [NSPredicate predicateWithFormat:@"uniqueId = %@", [flickrData objectForKey:@"id"]];

NSError *error = nil;

photo = [[context executeFetchRequest:request error:&error] lastObject];

[request release];

if (!error && !photo) {

photo = [NSEntityDescription insertNewObjectForEntityForName:@"Photo" inManagedObjectContext:context];

photo.uniqueId = [flickrData objectForKey:@"id"];

photo.title = [flickrData objectForKey:@"title"];

photo.imageURL = [FlickrFetcher urlStringForPhotoWithFlickrInfo:flickrData format:FlickrFetcherPhotoFormatLarge];

photo.whoTook = [Photographer photographerWithFlickrData:flickrData inManagedObjectContext:context];

}

return photo;

}

----------------------------

+ (Photographer *)photographerWithFlickrData:(NSDictionary *)flickrData inManagedObjectContext:(NSManagedObjectContext *)context

{

Photographer *photographer = nil;

NSFetchRequest *request = [[NSFetchRequest alloc] init];

request.entity = [NSEntityDescription entityForName:@"Photographer" inManagedObjectContext:context];

request.predicate = [NSPredicate predicateWithFormat:@"name = %@", [flickrData objectForKey:@"ownername"]];

NSError *error = nil;

photographer = [[context executeFetchRequest:request error:&error] lastObject];

[request release];

if (!error && !photographer) {

photographer = [NSEntityDescription insertNewObjectForEntityForName:@"Photographer" inManagedObjectContext:context];

photographer.name = [flickrData objectForKey:@"ownername"];

}

return photographer;

}

[i-omar-blog]

How to custom UITableView drawing

http://cocoawithlove.com/2009/04/easy-custom-uitableview-drawing.html

[i-omar-blog]

How to Custom UIKit Controls

https://github.com/boctor/idev-recipes

CustomBackButton

CustomSegmentedControls

CustomTabBar

CustomTabBarNotification

RaisedCenterTabBar

SideSwipeTableView

StretchableImages

TabBarAnimation

TransparentUIWebViews

VerticalSwipeArticles

WoodUINavigation

WordPressReimagined

[i-omar-blog]

How can I disable the UITableView selection highlighting?

cell.selectionStyle = UITableViewCellSelectionStyleNone;

[i-omar-blog]

How to know when UITableView did scroll to bottom

http://stackoverflow.com/questions/5137943/how-to-know-when-uitableview-did-scroll-to-bottom

- (void)scrollViewDidScroll:(UIScrollView *)aScrollView {

    CGPoint offset = aScrollView.contentOffset;

    CGRect bounds = aScrollView.bounds;

    CGSize size = aScrollView.contentSize;

    UIEdgeInsets inset = aScrollView.contentInset;

    float y = offset.y + bounds.size.height - inset.bottom;

    float h = size.height;

    // NSLog(@"offset: %f", offset.y);   

    // NSLog(@"content.height: %f", size.height);   

    // NSLog(@"bounds.height: %f", bounds.size.height);   

    // NSLog(@"inset.top: %f", inset.top);   

    // NSLog(@"inset.bottom: %f", inset.bottom);   

    // NSLog(@"pos: %f of %f", y, h);

    float reload_distance = 10;

    if(y > h + reload_distance) {

        NSLog(@"load more rows");

    }

}