iOS Code

To hide the status bar in iPhone through programming, [[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO];

Today, we will create a scroll view using the UIScrollView class and add the alphabets in the scroll view. The frame values used should be changed as per the needs. Action method for these buttons can also be added. #define WIDTH_OF_SCROLL_PAGE 65 #define HEIGHT_OF_SCROLL_PAGE 40 #define WIDTH_OF_IMAGE 65 CGRect scrollframe = CGRectMake(0.0, 4.0, 320, 40); UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:scrollframe]; scrollView.bounces = YES; scrollView.delegate = self; scrollView.userInteractionEnabled = YES; scrollView.clipsToBounds = YES; scrollView.scrollEnabled = YES; scrollView.showsHorizontalScrollIndicator = NO; NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:@"A",@"B",@"C",@"D",@"E",@"F",@"G",@"H", @"I", @"J", @"K", @"L", @"M", @"N", @"O", @"P", @"Q", @"R...

To create a UIActivityIndicator that displays a loading indicator in iPhone, UIActivityIndicatorView *viewIndicator = [[UIActivityIndicatorView alloc] initWithFrame:indicatorFrame]; [viewIndicator startAnimating]; [viewIndicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleGray]; [self.view addSubview:viewIndicator];

To create a UIButton in iPhone, the following code gives the standard features that needs to be initialized. Two images are used, one for Normal state and other for Highlighted state. UIButton *button = [[UIButton alloc] initWithFrame:frame]; [button setButtonType:UIButtonTypeCustom]; button.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter; [button setTitle:title forState:UIControlStateNormal]; [button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; [button setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted]; UIImage *newImage = [image stretchableImageWithLeftCapWidth:12.0 topCapHeight:0.0]; [button setBackgroundImage:newImage forState:UIControlStateNormal]; UIImage *newPressedImage = [imagePressed stretchableImageWithLeftCapWidth:12.0 topCapHeight:0.0]; [button setBackgroundImage:newPressedImage forState:UICont...

To get a random number in iPhone Objective-C, srandom(CFAbsoluteTimeGetCurrent()); int offset = random() % 30; // Here 30 can be replaced by any integer Now offset is the random number.

Do you want to block emails from your ex wife/husband? Do you want to block those annoying offers and newsletters that reach your inbox? Well here is a way to block all those unwanted and annoying emails that you do not want to see or read! With this trick you can block individual email address or the whole domain from which you do not want the emails to come from. Here are the step-by-step instructions to do this. For Gmail 1. Login to your account 2. At the top-right corner, click on Settings 3. Under Settings, click on Filters 4. You’ll now see an option “Create a new filter“, click on it 5. Now in the From field enter the email address from which you do not want to receive the emails For ex. you may enter john@gmail .com in the From field to block all incoming emails from this address. However if you want to block the whole domain then use the following syntax: *@xyz.com. Now all the incoming emails from the domain xyz.com will be blocked. 6. Click on Next Step, se...

To display a network activity indicator in iPhone, set the networkActivityIndicatorVisible property to YES. NO to disable it. UIApplication* application = [UIApplication sharedApplication]; application.networkActivityIndicatorVisible = YES;

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Here are list of free anti-virus softwares. Avast! Anti-virus program for Windows. The home edition is freeware for noncommercial users. AVG Free edition Free edition of the AVG anti-virus program for Windows and Linux. Tested and recommended by Freebyte.com. Avira Antivir Free anti-virus software for Windows, Linux, Free BSD and Solaris. Detects and removes more than 50,000 viruses. Free support. BitDefender Freeware virus scanner for Windows. Clam AV Freeware , GPL, Linux. Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. ClamWin Freeware , open-source anti-virus program for Windows. Comodo Anti-Virus Free anti-virus program for Windows. FProt Free anti-virus program for Linux, FreeBSD and Solaris (personal use only). Evaluation ve...

Having 100% confidence and involvement in your work is good. But this is too much!!! Moral: Working Hard is good but Working with Knowledge is very good.

1. Create a NSThread as follows. [NSThread detachNewThreadSelector:@selector(threadMethod) toTarget:self withObject:nil]; 2. Define the threadMethod in the code. - (void)threadMethod { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; /** add the code for the new thread **/ [pool release]; }

A UIWebView class is used to embed web content in your application. A sample code describes the implementation of UIWebView in detail. CGRect webFrame = CGRectMake(0.0, 0.0, 320.0, 460.0); UIWebView *webView = [[UIWebView alloc] initWithFrame:webFrame]; [webView setBackgroundColor:[UIColor whiteColor]]; NSString *urlAddress = @"http://--Any Web Site Address--"; // Fill the string with Website address NSURL *url = [NSURL URLWithString:urlAddress]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:url]; [webView loadRequest:requestObj]; [self addSubview:webView]; [webView release]; NSURL class is used to create an object which will hold the URL information. NSURLRequest is used to create a request to the URL. Method loadRequest of UIWebView is used to load the request in the UIWebView.

Here is the code that will display the image using UIImageView in Objective-C. CGRect imgRect = CGRectMake(0.0f, 0.0f, 320.0f, 109.0f); UIImageView *image = [[UIImageView alloc] initWithFrame:imgRect]; [image setImage:[UIImage imageNamed:@"SampleImage.png"]]; // where SampleImage.png should be available within in the project [self.view addSubview:image]; [image release];

In Objective-C, you commonly nead to convert a string to an NSDate object. A simple way to do this is using the NSDateFormatter object. It provides the dateFromString method which converts a string into an NSDate object. You do, however, need to tell NSDateFormatter the format the date will be in. See below example: NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"yyyy-MM-dd hh:mm:ss a"]; NSDate *myDate = [df dateFromString: myDateAsAStringValue]; NSDateFormatter uses the Unicode Locale Data Markup Language to determine the date format.