Harish

@interface UINavigationBar (CustomBackground) - (void)drawRectCustomBackground:(CGRect)rect;@end@implementation UINavigationBar (CustomBackground)- (void)drawRectCustomBackground:(CGRect)rect {if (self.barStyle == UIBarStyleDefault) {[[UIColor greenColor] set];CGRect fillRect = CGRectMake(0.0, 0.0, self.frame.size.width, self.frame.size.height);CGContextFillRect(UIGraphicsGetCurrentContext(), fillRect);return;}// Call default implementation[self drawRectCustomBackground:rect];}@end main.m to look like this:#import #import "UINavigationBar+CustomBackground.h"int main(int argc, char *argv[]) {NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];// Swizzle the nav barMethod drawRectCustomBackground = class_getInstanceMethod([UINavigationBar class], @selector(drawRectCustomBackground:));Method drawRect = class_getInstanceMethod([UINavigationBar class], @selector(drawRect:));method_exchangeImplementations(drawRect, drawRectCustomBackground);int retVal = UIApplicationMain(argc, argv, nil, @"AppDelegate");[pool release];return retVal;}

Understanding and Analyzing iPhone OS Application Crash Reports(logs):

Steps to analyze crash report from apple:

1.Copy the release .app file which was pushed to the appstore, and the .dSYM file that was created at the time of release and the crash report received from APPLE into a one FOLDER.

2.OPEN terminal application and go to the folder created above (using CD command)

3.atos -arch armv7 -o ''/'<.dSYM filename here>' .

The memory location should be the one at which the app crashed as per the report.

Ex: atos -arch armv7 -o 'app name.app'/'app name' 0x0003b508This would show you the exact line, method name which resulted in crash. Ex: [classname functionName:]; -510 http://stackoverflow.com/questions/4604843/crash-log-in-device http://furbo.org/2008/08/08/symbolicatifination/ http://davidbits.blogspot.com/2011/08/understanding-and-analyzing-ios.html http://stackoverflow.com/questions/1460892/symbolicating-iPhone-app-crash-reports

https://developer.apple.com/library/ios/#technotes/tn2008/tn2151.html

About dealloc:

http://stackoverflow.com/questions/909856/why-do-i-have-to-call-super-dealloc-last-and-not-first

NSLog format specifiers:

%@ Object

%d, %i signed int

%u unsigned int

%f float/double

%x, %X hexadecimal int

%o octal int

%zu size_t

%p pointer

%e float/double (in scientific notation)

%g float/double (as %f or %e, depending on value)

%s C string (bytes)

%S C string (unichar)

%.*s Pascal string (requires two arguments, pass pstr[0] as the first, pstr+1 as the second)

%c character

%C unichar

%lld long long

%llu unsigned long long

%Lf long double

NSLog(@"frame = %@\n", NSStringFromCGRect(self.view.frame));

NSLog(@"center = %g, %g", self.view.center.x, self.view.center.y);

NSLog(@" self.view is: %@", self.view);

iOS 5 SDK Tutorial and Guide Page:

http://maniacdev.com/ios-5-sdk-tutorial-and-guide/

Beginning ARC(Automatic Reference Counting) in iOS5 Tutorial:

http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1

http://thinkvitamin.com/code/ios/ios-5-automatic-reference-counting-arc/

http://longweekendmobile.com/2011/09/07/objc-automatic-reference-counting-in-Xcode-explained/

Pinch:

http://www.edumobile.org/iPhone/iPhone-programming-tutorials/how-to-detect-pinch-in-iPhone/

Techniques-to-encrypt

http://stackoverflow.com/questions/5713769/techniques-to-encrypt-text-on-iPhone-to-send-over-network

http://stackoverflow.com/questions/2808568/iPhone-encrypt-nsstring-using-aes-128-and-decrypt

Web services + iPhone

http://www.iPhonedevsdk.com/forum/iPhone-sdk-tutorials/76730-webservice-how.html

ASIHTTPRequest

http://allseeing-i.com/ASIHTTPRequest/

https+SSL:

http://www.jasonhooker.com/content/2010-02-15/how-allow-self-signed-certificates-when-using-nsurlrequest-your-iPhone-app

http://www.cocoanetics.com/2009/11/ignoring-certificate-errors-on-nsurlrequest/

https://wiki.jasig.org/plugins/viewsource/viewpagesrc.action?pageId=49873092

http://kadao.dir.bg/cocoa.htm

http://devcentral.f5.com/Tutorials/TechTips/tabid/63/articleType/ArticleView/articleId/1084349/iControl-Development-with-BIG-IP-LTM-VE--Part-2.aspx

iPhone sdk sample codes from google code:

http://code.google.com/p/iPhone-sdk-programming-book-code-samples/

How to create universal static libraries on Xcode 4:

http://blog.boreal-kiss.net/2011/03/15/how-to-create-universal-static-libraries-on-Xcode-4/

Install .app on iPhone simulator:

If you open up Finder, and go to /Users/user/Library/Application Support/iPhone Simulator/iOS version/Applications, you will find directories for all the apps installed on the simulator.

Just zip up that top level folder for the app, and have the other user drop it in the same directory. Works like a charm.

NOTE: I think you may have to compile it for that specific version of iOS before sending it over to them.

DigitalColor Meter + [UIColor colorWithRed:0.663 green:0.855 blue:0.341 alpha:1]

We have an application in our MAC called "DigitalColor Meter". We can use this application into our application to get the color code for RGB.

Steps:

1) Open DigitalColor Meter application in MAC, can use spot light for easy search.

2) Keep the required mode to "RGB as Percentage"

3) Using the mouse pointer go to the required color on the screen.

4) Note down the RGB values in percentage.

5) In our code you can use the method

[UIColor colorWithRed:0.663 green:0.855 blue:0.341 alpha:1]

convert percentage values into fractions. like 53.5% will become 0.535. Use the respective RGB values in the code, and alpha value must be 1.

Run the application, you will get the exact color required.

Gdata in iPhone:

http://stackoverflow.com/questions/4543582/how-to-use-gdata-in-iPhone

Delegation Pattern in Objective-c and writing Custom Delegates:

http://enroyed.com/ios/delegation-pattern-in-objective-c-and-writing-custom-delegates/

IOS Design Patterns: http://www.raywenderlich.com/46988/ios-design-patterns

Storyboard: http://mobile.tutsplus.com/tutorials/iPhone/ios-5-sdk-storyboards/

Core data:

http://mobile.tutsplus.com/tutorials/iPhone/iPhone-core-data/

http://www.techotopia.com/index.php/An_iOS_5_iPhone_Core_Data_Tutorial

For Hide/UnHide Files in mac:

UnHide: In terminal

defaults write com.apple.Finder AppleShowAllFiles NO

killall Finder

Hide: In terminal

defaults write com.apple.Finder AppleShowAllFiles YES

killall Finder

Useful SVN Commends: http://wiki.greenstone.org/wiki/index.php/Useful_SVN_Commands

Importing & Exporting Documents in iOS: http://mobiforge.com/developing/story/importing-exporting-documents-ios

Migrate to ARC:
http://www.mikeash.com/pyblog/friday-qa-2011-09-30-automatic-reference-counting.html http://blog.mugunthkumar.com/articles/migrating-your-code-to-objective-c-arc/

http://developer.apple.com/library/ios/#releasenotes/ObjectiveC/RN-TransitioningToARC/RevisionHistory.html

How to Password Protect a Folder on the Mac:

* Open up the "Disk Utility" application

* File -> New -> Disk Image from Folder...

* choose a folder to protect

* choose "AES-128" encryption and press Save

* Enter your desired new password twice (Do not forget it.)

This process creates an ordinary Macintosh disk image (.dmg) file. The disk image contains the entire contents of the folder, but cannot be opened unless the correct password is supplied. To open it, just double-click the .dmg file in Finder. A password dialog box will appear. Once you supply your correct password, Finder will automatically unencrypt your data and mount the image as a disk.

How to install Apache and PHP on a Mac with OSX 10.8 :

http://machiine.com/2013/how-to-install-apache-and-php-on-a-mac-with-osx-10-8-mamp-part-1/

iOS Controls: http://pinterest.com/rchampourlier/best-ios-controls/

Lazy loading:
http://iosmadesimple.blogspot.in/2013/04/lazy-image-loading.html
http://lazyloadinginuiscrollviewiniphone.blogspot.in/2011/12/lazy-loading-in-uitableview-in-iphone.html
https://developer.apple.com/library/ios/samplecode/LazyTableImages/Introduction/Intro.html

Communicating two apps (URL schemes):

http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-working-with-url-schemes/

Creating Static Library:

http://www.raywenderlich.com/41377/creating-a-status-library-in-ios-tutorial

Custom features (codes) in iOS: http://code4app.net

Side menu in IOS: http://bitly.com/bundles/o_27ukkruo5l/1

iPhone URL Schemes: http://wiki.akosma.com/IPhone_URL_Schemes

Testflight: http://www.raywenderlich.com/48750/testflight-sdk-tutorial

JSON Validator: http://jsonlint.org/

Convert .xps to pdf: https://xps2pdf.co.uk/default.aspx

Online tests: http://www.indiabix.com/

Background location Updates:
http://mobileoop.com/background-location-update-programming-for-ios-7

Equal spacing and equal width for buttons in IOS auto layout:
http://stackoverflow.com/questions/32862142/how-to-add-equal-spacing-and-equal-width-for-button-in-ios-auto-layout

Call a Web Service as your iOS App Enters the Background:
https://yorkstreetlabs.com/blog/call-web-service-as-ios-app-enters-the-background

Force an iPhone user to upgrade an application:

- (void)applicationDidBecomeActive:(UIApplication *)application {

#pragma mark New version of app is available alert in iOS

NSDictionary* infoDictionary = [[NSBundle mainBundle] infoDictionary];

NSString* appID = "your appid";

NSURL* url = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=%@", appID]];

NSData* data = [NSData dataWithContentsOfURL:url];

NSDictionary* lookup = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];

if ([lookup[@"resultCount"] integerValue] == 1){

float appStoreVersion = [lookup[@"results"][0][@"version"] floatValue];

float currentVersion = [infoDictionary[@"CFBundleShortVersionString"] floatValue];

if (appStoreVersion < currentVersion) {

UIAlertView *createUserResponseAlert = [[UIAlertView alloc] initWithTitle:@"New Version!!" message: @"A new version of app is available to download" delegate:self cancelButtonTitle:nil otherButtonTitles: @"Update", nil];

[createUserResponseAlert show];

}

-(void)alertView:(UIAlertView *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

NSString *iTunesLink = @"itms://itunes.apple.com/us/app/apple-store/your appid?mt=8";

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:iTunesLink]];

}

Run app with Apple developer account (not paid):
https://blog.ionicframework.com/deploying-to-a-device-without-an-apple-developer-account/
https://help.apple.com/developer-account/#/dev21218dfd6