how to edit image with example

http://www.aviary.com/ios-documentation

how to make lazyTableLoading Images.............

https://developer.apple.com/library/ios/#samplecode/LazyTableImages/Listings/Classes_AppRecord_h.html

how to send Mail.........

-(void)sendMail{
   
    if ([MFMailComposeViewController canSendMail]){
        MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
        picker.mailComposeDelegate = self;
       
        NSDate *date = [NSDate date];
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"MM/dd/yyyy HH:mm:ss a"];
        NSString *strDate = [formatter stringFromDate:date];
       
        [picker setSubject:[NSString stringWithFormat:@"Contact Backup : %@", strDate]];
       
        // Set up recipients
        NSArray *toRecipients = [NSArray arrayWithObject:@""];

        [picker setToRecipients:toRecipients];
       
       Support/iPhone Simulator/5.0/Applications/8FFDED4D-0FEF-4E3C-9B43-3677E6B4881D/Documents/contacts.vcf"];
      
        NSURL *theURL = [[self applicationDocumentsDirectory] URLByAppendingPathComponent:@"contacts.vcf"];
       
        NSData *myData = [NSData dataWithContentsOfURL:theURL];
        // NSData *myData = [NSData dataWithContentsOfFile:path];
        [picker addAttachmentData:myData mimeType:@"text/vcard" fileName:@"contacts.vcf"];
       
        // Fill out the email body text
        NSString *emailBody = @"Here I am sending Contact Backup. \n \nNote: Send this email to yourself and when you lost contact use this email and restore contacts.";
        [picker setMessageBody:emailBody isHTML:NO];
        picker.mailComposeDelegate=self;
        [self presentModalViewController:picker animated:YES];
        [picker release];
        btnBackup.tag=1;
        [btnBackup setImage:[UIImage imageNamed:@"back up.png"] forState:UIControlStateNormal];
        [btnBackup removeTarget:self action:@selector(sendMail) forControlEvents:UIControlEventTouchUpInside];
        [btnBackup addTarget:self action:@selector(btnBackupClicked:) forControlEvents:UIControlEventTouchUpInside];
        progressCount = 0;
        progressView.progress=progressCount;
    }
   
}

- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error
{
    lblContact.textAlignment = UITextAlignmentCenter;
    lblContact.font = [UIFont boldSystemFontOfSize:18];
    lblContact.hidden = NO;
    // Notifies users about errors associated with the interface
    switch (result)
    {
        case MFMailComposeResultCancelled:
            lblContact.text = @"Mail Sending cancelled";
            break;
        case MFMailComposeResultSaved:
            lblContact.text = @"Mail saved";
            break;
        case MFMailComposeResultSent:
            lblContact.text = @"Mail sent successfully";
            break;
        case MFMailComposeResultFailed:
            lblContact.text = @"Sending failed";
            break;
        default:
            lblContact.text = @"Mail not sent";
            break;
    }
    [self dismissModalViewControllerAnimated:YES];
}

how to fetch facebook contacts,,

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    // Override point for customization after application launch.
    self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];
    nav = [[UINavigationController alloc] initWithRootViewController:self.viewController];
    nav.navigationBar.barStyle = UIBarStyleBlack;
   
    [self.window addSubview:nav.view];
    self.window.rootViewController = self.viewController;
    [self.window makeKeyAndVisible];
    facebook = [[Facebook alloc] initWithAppId:@"181376618640260" andDelegate:self];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    if ([defaults objectForKey:@"FBAccessTokenKey"]
        && [defaults objectForKey:@"FBExpirationDateKey"]) {
        facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
        facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
    }

    if (![facebook isSessionValid]) {
        NSArray *permissions = [[NSArray alloc] initWithObjects:
                                @"user_likes",
                                @"read_stream",
                                @"friends_about_me",
                                @"user_about_me",
                                @"user_birthday",
                                @"friends_birthday",
                                nil];
        [facebook authorize:permissions];
        [permissions release];
    }
    strFBUrl = [NSString stringWithFormat:@"https://graph.facebook.com/me/friends?access_token=%@&fields=id,name,picture,first_name,birthday",facebook.accessToken];
    NSURL *jsonURL = [NSURL URLWithString:strFBUrl];
    
    arrContacts = [[NSMutableArray alloc] initWithArray:[[self getJsonData:jsonURL] objectForKey:@"data"]];   
 
    return YES;
}



- (void)fbDidLogin {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:[facebook accessToken] forKey:@"FBAccessTokenKey"];
    [defaults setObject:[facebook expirationDate] forKey:@"FBExpirationDateKey"];
    [defaults synchronize];
   
}
- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url {
    return [facebook handleOpenURL:url];
}

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
    return [facebook handleOpenURL:url];
}

-(NSMutableDictionary*)getJsonData :(NSURL *)jsonURL {
   
    NSMutableDictionary *dict = [[[NSMutableDictionary alloc] init] autorelease];
    NSError *err;
    NSString *jsonData = [[NSString alloc] initWithContentsOfURL:jsonURL usedEncoding:nil error:&err];
           
        if(jsonData == nil){
            //NSLog(@"Data NIL.....");
        }
        else{
            SBJSON *json = [[SBJSON alloc] init];
            NSError *error = nil;
            dict = [json objectWithString:jsonData error:&error];
            [json release];
        }
        [jsonData release];
   
   
    return dict;
}




// to disply facebook contacts in tableview



- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 80.0;
}

// Customize the number of sections in the table view.
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [appdel.arrContacts count];
}

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"Cell";
   
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
        // Show disclosure only if this view is related to showing nearby places, thus allowing
        // the user to check-in.
      
        }
    NSMutableDictionary *dictTemp = [appdel.arrContacts objectAtIndex:indexPath.row];
   
    cell.textLabel.text = [dictTemp objectForKey:@"name"];
    cell.textLabel.font = [UIFont boldSystemFontOfSize:14.0];
    cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
    cell.textLabel.numberOfLines = 2;
    // If extra information available then display this.
        cell.detailTextLabel.text = [dictTemp objectForKey:@"birthday"];
        cell.detailTextLabel.font = [UIFont fontWithName:@"Helvetica" size:12.0];
        cell.detailTextLabel.lineBreakMode = UILineBreakModeCharacterWrap;
        cell.detailTextLabel.numberOfLines = 2;
   
    UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[dictTemp objectForKey:@"picture"]]]];
    cell.imageView.image = image;
   
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    // Only handle taps if the view is related to showing nearby places that
    // the user can check-in to.
    }

how to make .Vcf file

 ABAddressBookRef addressBook = ABAddressBookCreate();
    CFArrayRef contacts = ABAddressBookCopyArrayOfAllPeople(addressBook);
    CFDataRef vcards = (CFDataRef)ABPersonCreateVCardRepresentationWithPeople(contacts);
   
    NSString *vcardString = [[NSString alloc] initWithData:(NSData *)vcards encoding:NSUTF8StringEncoding];
   
    NSError *error;
    NSFileManager *fileMgr = [NSFileManager defaultManager];
       
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *folderPath = [paths objectAtIndex:0];
    NSString *filePath = [folderPath stringByAppendingPathComponent:@"contacts.vcf"];
   
    [vcardString writeToFile:filePath atomically:YES encoding:NSStringEncodingConversionAllowLossy error:nil];
   
    NSLog(@"Documents directory: %@",[fileMgr contentsOfDirectoryAtPath: folderPath error:&error]);
   
    CFRelease(addressBook);

how to make tableview with custom switch

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 2;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    if (section==0) {
        return array.count;
    }
    else{
        return 1;
    }
}



- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
   
    static NSString *CellIdentifier = @"Cell";
   
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        //     cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];     
    }
    if (indexPath.section==0) {
        UISwitch *switchObj = [[UISwitch alloc] initWithFrame:CGRectZero];
   
        [switchObj addTarget:self action:@selector(toggleValue:) forControlEvents:(UIControlEventValueChanged | UIControlEventTouchDragInside)];
        switchObj.tag=indexPath.row;
    //1 for the on
    //0 for the off
   
        if ([[appDel.storeValueArray objectAtIndex:indexPath.row] intValue]==0 && [appDel.storeValueArray count]>=1) {
            switchObj.on=NO;   
        }
        else if([appDel.storeValueArray count]>=1){
            switchObj.on=YES;       
        }

        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        cell.accessoryView = switchObj;
        cell.textLabel.text = [array objectAtIndex:indexPath.row];
    }
    else
    {
        cell.backgroundColor = [UIColor redColor];
        cell.textLabel.text = @"Remove Contacts";
        cell.textLabel.textColor = [UIColor whiteColor];
    }
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section==1) {
        contactsView *contact = [[contactsView alloc]initWithNibName:@"contactsView" bundle:nil];
        [self.navigationController pushViewController:contact animated:YES];
        [contact release];
    }
}