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• Updating iOS application content which include images

  - by azamsharp

  I am working on a Vegetable gardening application. Apart from the vegetable name and description I also have vegetable image. Currently, I have all the images in the Supported Files folder in the Xcode project. But later on I want to update the application dynamically without having the user download a new version. When the user updates the application or downloads new data from the server that data will include the images. Can I store those images in the supporting file folder or somewhere where they can be references by just the name. RELATED QUESTION: I will also allow the user to take pictures of their vegetables and then write notes about the vegetables like "just planted", "about to harvest" etc. What is the recommended approach for storing pictures/photos. I can always store them in the user's photo library and then store the reference in the local database and then fetch and display the picture using the reference. The problem with that approach might be that if the user accidentally deletes the picture from the library then it will no longer be displayed in my application. The only way I see if to store the picture in the app local database as a BLOB.

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• iOs receivedData from NSURLConnection is nil

  - by yhl

  I was wondering if anyone could point out why I'm not able to capture a web reply. My NSLog shows that my [NSMutableData receivedData] has a length of 0 the entire run of the connection. The script that I hit when I click my login button returns a string. My NSLog result is pasted below, and after that I've pasted both the .h and .m files that I have. NSLog Result 2012-11-28 23:35:22.083 [12548:c07] Clicked on button_login 2012-11-28 23:35:22.090 [12548:c07] theConnection is succesful 2012-11-28 23:35:22.289 [12548:c07] didReceiveResponse 2012-11-28 23:35:22.290 [12548:c07] didReceiveData 2012-11-28 23:35:22.290 [12548:c07] 0 2012-11-28 23:35:22.290 [12548:c07] connectionDidFinishLoading 2012-11-28 23:35:22.290 [12548:c07] 0 ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController // Create an Action for the button. - (IBAction)button_login:(id)sender; // Add property declaration. @property (nonatomic,assign) NSMutableData *receivedData; @end ViewController.m #import ViewController.h @interface ViewController () @end @implementation ViewController @synthesize receivedData; - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { NSLog(@"didReceiveResponse"); [receivedData setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSLog(@"didReceiveData"); [receivedData appendData:data]; NSLog(@"%d",[receivedData length]); } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSLog(@"connectionDidFinishLoading"); NSLog(@"%d",[receivedData length]); } - (IBAction)button_login:(id)sender { NSLog(@"Clicked on button_login"); NSString *loginScriptURL = [NSString stringWithFormat:@"http://www.website.com/app/scripts/login.php?"]; NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:loginScriptURL]]; NSString *postString = [NSString stringWithFormat:@"&paramUsername=user&paramPassword=pass"]; NSData *postData = [postString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; [theRequest setHTTPMethod:@"POST"]; [theRequest setHTTPBody:postData]; // Create the actual connection using the request. NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; // Capture the response if (theConnection) { NSLog(@"theConnection is succesful"); } else { NSLog(@"theConnection failed"); } } @end

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• iOS UITableViewCell UIImageView setting on different conditions

  - by chis54

  I have an app that has a UITableView and in my Cells I have UIImageViews and UILabels that change images/textColors for a day theme and a night theme (trying to be automatically set). My issue is that I set the images and colors when the table is populated with cellForRowAtIndexPath and its during the day "theme", then if I reopen the app hours later in the night "theme" and the app is still in the "background" and not needing to be reloaded (ie viewDidLoad doesn't fire), the day "theme" shows until I scroll the UITableView and then the night "theme" shows when new cells are brought into view by scrolling. How should I set the objects in my cells when changing around time of the day? I was thinking to use an NSTimer, but I'm not sure how to update the objects in my cells. I was also thinking about using the appropriate methods in the AppDelagate to set things in motion, but is there a way to force reloading the TableView? Any suggestions?

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• How to avoid my this facebook app api login page?

  - by user1035140

  I got a problem regrading with my apps which is once I go to my apps, it sure will show me a login page instead of allow page? it always display the login page 1st then only display allow page, I had tried other apps, if I am 1st time user, It sure will appear the allow page only, it did not show me the login page. my question is how to I avoid my login page direct go to allow page? here is my login page picture here is my apps link https://apps.facebook.com/christmas_testing/ here is my facebook php jdk api coding <?php $fbconfig['appid' ] = "XXXXXXXXXXXXX"; $fbconfig['secret'] = "XXXXXXXXXXXXX"; $fbconfig['baseUrl'] = "myserverlink"; $fbconfig['appBaseUrl'] = "http://apps.facebook.com/christmas_testing/"; if (isset($_GET['code'])){ header("Location: " . $fbconfig['appBaseUrl']); exit; } if (isset($_GET['request_ids'])){ //user comes from invitation //track them if you need header("Location: " . $fbconfig['appBaseUrl']); } $user = null; //facebook user uid try{ include_once "facebook.php"; } catch(Exception $o){ echo '<pre>'; print_r($o); echo '</pre>'; } // Create our Application instance. $facebook = new Facebook(array( 'appId' => $fbconfig['appid'], 'secret' => $fbconfig['secret'], 'cookie' => true, )); //Facebook Authentication part $user = $facebook->getUser(); $loginUrl = $facebook->getLoginUrl( array( 'scope' => 'email,publish_stream,user_birthday,user_location,user_work_history,user_about_me,user_hometown' ) ); if ($user) { try { // Proceed knowing you have a logged in user who's authenticated. $user_profile = $facebook->api('/me'); } catch (FacebookApiException $e) { //you should use error_log($e); instead of printing the info on browser d($e); // d is a debug function defined at the end of this file $user = null; } } if (!$user) { echo "<script type='text/javascript'>top.location.href = '$loginUrl';</script>"; exit; } //get user basic description $userInfo = $facebook->api("/$user"); function d($d){ echo '<pre>'; print_r($d); echo '</pre>'; } ?

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• Format textfield while typing Ios

  - by BBios

  Ive seen other examples and tried - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string I am not sure what I am doing wrong, I just started coding my first Iphone App This is what I am trying to do I have 4 textfields and each has a limit on number of letters while typing I have done this using the below code - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { int valid; NSString *cs2 = [textField.text stringByReplacingCharactersInRange:range withString:string]; // int charCount = [cs2 length]; if(textField == cvv){ valid = 4; }else if(textField == cardName) { valid=26; }else if(textField == expDate) { valid=5; // if (charCount == 2 ) { // textField.text = [cs2 stringByAppendingString:@"/"]; // textField.text = cs2; // return YES; // } }else if(textField == acNumber) { valid=19; } return !([cs2 length] > valid); Works fine till here, I have a textfield where the user enters Exp date and would like to format it as if I am entering 112 then it should display as 01/12 and if I enter 2 then it should display as 1122 I tried checking if the length of the textfield value is 2 then append a / but then that gives me when I enter 12 it gives 11/22

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• IPhone iOs 5, need help getting my tab bar at the top to work

  - by Patrick

  I wanted to have the tab bar at the top. So i created a new project in XCode. Added a view and then inside that view i added (scrollbar, text and another view). See picture. What i wanted was to have my tab bar at the top. Then in the middle would be the contents from the tab bar and below it a small copyright text. See picture. No idea how to make this correctly. I have tried to create the UITabBarController on the fly and then assign it into the view at the top. (Top white space on the picture dedicated for the tab bar). Here is my code to init the MainWindow. MainWindow.h #import <UIKit/UIKit.h> @class Intro; @interface MainWindow : UIViewController @property (strong, nonatomic) IBOutlet UIScrollView *mainContentFrame; @property (strong, nonatomic) IBOutlet UIView *mainTabBarView; @property (strong, nonatomic) UITabBarController *mainTabBar; @property (nonatomic, strong) Intro *intro; // Trying to get this tab to show in the tab bar @end MainWindow.m #import "MainWindow.h" #import "Intro.h" @interface MainWindow () @end @implementation MainWindow @synthesize mainContentFrame = _mainContentFrame; @synthesize mainTabBarView = _mainTabBarView; @synthesize mainTabBar = _mainTabBar; @synthesize intro = _intro; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { _intro = [[Intro alloc] init]; NSArray *allViews = [[NSArray alloc] initWithObjects:_intro, nil]; [super viewDidLoad]; // Do any additional setup after loading the view. _mainTabBar = [[UITabBarController alloc] init]; [_mainTabBar setViewControllers:allViews]; [_mainTabBarView.window addSubview:_mainTabBar.tabBarController.view]; } - (void)viewDidUnload { [self setMainTabBar:nil]; [self setMainContentFrame:nil]; [self setMainContentFrame:nil]; [super viewDidUnload]; // Release any retained subviews of the main view. } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } @end What am i missing to get this to work? Wanted the content to end up in the scrollview so that all tabs are scrollable.

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• IOS center bottom position view

  - by Ben_hawk

  I do the following to a loading animation, to place it at the bottom center of the screen. CGPoint bottomCenter = CGPointMake((self.imageView.bounds.size.width / 2), (self.imageView.bounds.size.height * 0.8)); self.activityView.center = bottomCenter; (imageView is the full screen splash image) If the orientation is portrait, it is positioned perfectly, however turning on its side, in landscape or upside down portrait and the animation ends up miles away :S Does anyone know the correct way to position this loading animation, its for the splash screen.

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• iOS didFinishLaunchingWithOptions method options==nil

  - by poopChai

  I was trying to fetch remote notification info when the app was not running,so I was told that I can get from : UILocalNotification *localNotification = [launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey] in method: - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions ,but still can't get info. Then I use alertView to show the info on iPhone(launch without Xcode),still can't get the info. Any other issue would cause this? Please let me know if you have any ideas.

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• UITableView issue (iOS)

  - by Oktay

  I wonder why cellForRowAtIndexPath function is called when scrolling the UITableView. Does it mean on every scrolling cell configuration code runs again? I have a slowness problem when scrolling the table. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CountryCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } // Configure the cell... NSString *continent = [self tableView:tableView titleForHeaderInSection:indexPath.section]; NSString *country = [[self.countries valueForKey:continent] objectAtIndex:indexPath.row]; cell.textLabel.text = country; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; }

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• Disable iOS keyboard (don't show it at all) in phonegap

  - by lashleigh

  If I were writing a native app I would try the solution given here which says: Try to implement the following method in text view's delegate: - (BOOL)textViewShouldBeginEditing:(UITextView *)textView{ return NO; } Unfortunately I need to use phonegap, so I don't have a text view to manipulate. It would be great if I could permanently suppress the keyboard in this app. We've got some custom on screen keyboard that people are supposed to use instead. So, any idea how to disable the popup keyboard completely?

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• The right approach to loading dynamic content into a UITableView in iOS

  - by OS.

  ok, I've read tons of bits and pieces on the subject of loading dynamic content (from the web) into a UITableView and the problem with calculating cell height upfront. I've tried different simple implementations but the problem persists... Assuming I need to read a JSON file from the web, parse it into 'item' objects, each with variable size image and various text labels, here is what I believe would be the right approach to avoid long hang time of the app while everything is loading: on app load read JSON file and parse into items array provide only small part of the items array to the tableview (about 10 items) - since I need to load the images associated with each item to calculate cell height - I don't want the view to go through the whole items list and load all images - this hangs the app until every image is loaded display the tableview with the available cells (assuming I load a few 'spare' ones, user can even scroll to more items) in the background using Grand Central Dispatch download images for all/some of the remaining items and then reload the tableview with the new data (repeat step 4 if item list is very long) Step 2 above is necessary since I have no way to calculate the cell height without loading the images first, and since tableview first calculates height of all cells it may take a very long time to download all images for all items. Would you say this is the right approach? am I missing something?

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• ios - almost there with updating Core Data

  - by Jeff Kranenburg

  I have been following the answer of this question: How to update existing object in core data? and in the answer it comes across this line of code to update a record within the array: Favorits* favoritsGrabbed = [results objectAtIndex:0]; Now this updates whatever is set a record 0 of the database, no matter what cell I select to edit. I am sorry but I cannot figure out how to change it into updating the cell I have selected. Starting to grow grey hairs here:-) The problem (maybe it is my mindset) is that I am required to give an integer and I am unable to find something to substitute it. Any help would be great.

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• IOS-Fixed content in UIScrollview

  - by heaven

  I have a problem with UIScrollView and UILabel. I'm adding UILabel using addSubview inside UIScrollView, one UILabel on the top set Width: 3000 - height: 20; other UILabel on the left: set height: 1000 - width: 50; In the middle UISCrollView is here I wanna When scroll horizontal the UILabel on the top move to left or right (doesn't move to up or down) When scroll vertical the UILabel on the left move to up or down (doesn't move right or left)

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• iOS - Prompt User to Update to Latest App Version

  - by Kevin_TA

  Is there any method or plugin available that will alert the user to upgrade an app if the version they are using is not the latest? I suppose I could ping a web service to check what the current version is and compare with the user's version and go from there. As an aside, is there a way to check the current version of the app (some property I don't know about) or do you simply have to hardcode the version as some float variable or something? Thanks

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• iOS app private distribution and MDM

  - by Hippocrates

  We want to develop apps for a variety of separate clients for use on their iPads/iPhones. Right now we have a developer license and and provision UUIDs manually and distribute the app OTA via a web server. This limits us to 100 devices per license and leaves us paying for upkeep of the license. Some of our clients may also be interested in using an MDM software package. What is the best way for us to provision and push apps to many clients and more that 100 devices? Would each client need to pay for their own enterprise license? Any input is appreciated. Thanks.

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• App delegate doesn't work after starting using Storyboards -iOS

  - by user968173

  I have a small problem with my game.. I wanna stop my game whenever it's interrupted. My stopGame method was working when I called it in applicationWillResignActive when I was using xib files. When I changed it to storyboards, it stopped working.. applicationWillResignActive still works with storyboards and my stopGame method is called, but for some reason, my game does not stop.. Has someone faced a problem like this? And possible solutions please.. Thanks in advance..

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• Simple iOS Get Request Not Pulling in Data

  - by user2793987

  I have a very simple get request that doesn't return data on my script. The script is fine when viewed in the web browser but the app does not pull in the data. Any other script works with this code in the app. I'm unsure of what to do because there shouldn't be a reason for this to not work. Please let me know if you need more information. Here's the script: https://shipstudent.com/complaint_desk/similarPosts.php?username=noah //retrieve saved username from user defaults (it's noah) NSUserDefaults *eUser = [NSUserDefaults standardUserDefaults]; savedUser = [eUser objectForKey:@"user"]; NSLog(@"%@",savedUser); in ViewDidLoad: NSString *categoryParam = [NSString stringWithFormat:@"https://shipstudent.com/complaint_desk/similarPosts.php?username=%@", savedUser]; NSURL *url = [NSURL URLWithString:categoryParam]; NSMutableURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLCacheStorageAllowed timeoutInterval:30.0]; NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; if (connection==nil) { NSLog(@"Invalid request"); } -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { postData = [[NSMutableData alloc]init]; NSLog(@"Response received"); } -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [postData appendData:data]; NSLog(@"Data received"); } -(void)connectionDidFinishLoading:(NSURLConnection *)connection { [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; similarPosts = [NSJSONSerialization JSONObjectWithData:postData options:kNilOptions error:nil]; [postsTbl reloadData]; for (id postObject in similarPosts) { NSLog(@"Relatable Post: %@",postObject); } }

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• objectAtIndex:indexPath.row method always causes exception in IOS

  - by kalkin

  Hi I always seem to get exception when I use objectAtInded method to retrieve NSString from an array. I am reading data from a dictionary which is in the "PropertyList.plist" file.My code is - (void)viewDidLoad { [super viewDidLoad]; NSString *path = [[NSBundle mainBundle] pathForResource:@"PropertyList" ofType:@"plist"]; names = [[NSDictionary alloc] initWithContentsOfFile:path]; keys = [[[names allKeys] sortedArrayUsingSelector: @selector(compare:)] retain]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger section = [indexPath section]; NSUInteger row = [indexPath row]; NSString *key = [keys objectAtIndex:section]; NSArray *nameSection = [names objectForKey:key]; static NSString *SectionsTableIdentifier = @"SectionsTableIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SectionsTableIdentifier]; if(cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:SectionsTableIdentifier] autorelease]; } cell.textLabel.text = [nameSection objectAtIndex:row]; return cell; } The exception happens on the method "cellForRowAtIndexPath" in the line cell.textLabel.text = [nameSection objectAtIndex:row]; The error message is Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary objectAtIndex:]: unrecognized selector sent to instance 0x6832440 Where ever I use "[nameSection objectAtIndex:row];" type of statement it always get exception.

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• iOS: Releasing Object Thats In Use (ARC)

  - by RileyE

  I have an object that I have created that subscribes to some NSNotificationCenter notifications, but it is being released, since I don't have a pointer to the instantiation. The instantiation has a delegate that will call a method back to another class I have, so I felt it unnecessary to also have a pointer to it, since the pointer doesn't serve any purpose. Basically, I have an instantiation of a class, DelegateListener (name is just for example purposes), which subscribes to some of the default NSNotificationCeneter's notifications. This instantiation isn't assigned to any pointer after the instantiation ends. The instantiation, however, has a property, delegate. I assign a value to that delegate during the instantiation. That delegate implements methods that I want the DelegateListener to call when the notifications that it subscribed to fire. The problem with this is that the instantiation of DelegateListener that I create gets released, unless if I assign it to a retained pointer. Is there a way to avoid this automatic release of my DelegateListener instantiation within ARC?

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• Adding Facebook IPv6 to Centos, getting CurlException 7

  - by Nick

  I'm correctly get following error. After searching about this issue, correct me if i'm wrong, I believe that adding/configuring IPv6 should solve the problem. PHP Fatal error: Uncaught CurlException: 7: Failed to connect to 2a03:2880:10:8f02:face:b00c:0:26: Network is unreachable\n thrown in /var/www/vhosts/facedex.net/httpdocs/fb/apps/seemyfuture/src/base_facebook.php on line 886 The problem is I dont know the right way to add it. There seems to have may methods. http://tldp.org/HOWTO/Linux+IPv6-HOWTO/x1035.html#AEN1044 http://unix.stackexchange.com/questions/34093/static-ipv4-ipv6-configuration-on-centos-6-2 My netstat show this. Shell doesnt recogize -rn6 though.It shows invalid option -- 6 netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 27.254.38.128 0.0.0.0 255.255.255.128 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 27.254.38.254 0.0.0.0 UG 0 0 0 eth0 FYI: I'm using Centos 5.7. Thank you a lot in advance.

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• I click facebook connect and nothing happens

  - by Delirium tremens

  I'm trying the link at http://www.piratedate.com/zp/go.php?to=lobby Why not? How to solve?

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• Trying to get rid of facebook, meetup, at work

  - by Don

  These are time wasters and addictive. I dont have "administrator rights". How can I block this websites from my own work computer? Thanks

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• The Windows Azure Software Development Kit (SDK) and the Windows Azure Training Kit (WATK)

  - by BuckWoody

  Windows Azure is a platform that allows you to write software, run software, or use software that we've already written. We provide lots of resources to help you do that - many can be found right here in this blog series. There are two primary resources you can use, and it's important to understand what they are and what they do. The Windows Azure Software Development Kit (SDK) Actually, this isn't one resource. We have SDK's for multiple development environments, such as Visual Studio and also Eclipse, along with SDK's for iOS, Android and other environments. Windows Azure is a "back end", so almost any technology or front end system can use it to solve a problem. The SDK's are primarily for development. In the case of Visual Studio, you'll get a runtime environment for Windows Azure which allows you to develop, test and even run code all locally - you do not have to be connected to Windows Azure at all, until you're ready to deploy. You'll also get a few samples and codeblocks, along with all of the libraries you need to code with Windows Azure in .NET, PHP, Ruby, Java and more. The SDK is updated frequently, so check this location to find the latest for your environment and language - just click the bar that corresponds to what you want: http://www.windowsazure.com/en-us/develop/downloads/ The Windows Azure Training Kit (WATK) Whether you're writing code, using Windows Azure Virtual Machines (VM's) or working with Hadoop, you can use the WATK to get examples, code, PowerShell scripts, PowerPoint decks, training videos and much more. This should be your second download after the SDK. This is all of the training you need to get started, and even beyond. The WATK is updated frequently - and you can find the latest one here: http://www.windowsazure.com/en-us/develop/net/other-resources/training-kit/     There are many other resources - again, check the http://windowsazure.com site, the community newsletter (which introduces the latest features), and my blog for more.

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• Facebook LikeBox IFrame over SSL

  - by Midday

  the iframe version of likebox is by default over http. the developer wiki on facebook says on Using the Like Box with SSL I should load the FacebookConnect script over https , I don't what the FacebookConnect script only the iframe. I found that calling https://www.facebook.com/plugins/likebox.php?#ALLMYPARAMETERS# works and doesn't break the ssl even though this is not in their wiki since this not in their wiki, will it be deprecated? or can i trust on this to work for an extended while

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• Android: Download the Android SDK components for offline install

  - by Tawani

  Is it possible to download the Android SDK components for offline install without using the SDK Manager? The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception) https://dl-ssl.google.com/android/repository/repository.xml http://dl-ssl.google.com/android/repository/repository.xml Failed to fetch URL http://dl-ssl.google.com/android/repository/repository.xml, reason: Connection refused: connect

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