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By customization we can change look and feel of Navigation Bar. Below is sample code which demonstrates how to customize Navigation Bar. We can achieve this by using Categories in Objective-C: Code Sample: /*********************************************************/ @interface UINavigationBar (CustomNavBarImage)  - (void) setNavBackgroundImage:(UIImage*)bgImage;  - (void) removeNavBackgroundImage ; @end /************************************************************/ //.m file (Implementaion file) #import "UINavigationBar+CustomNavBarImage.h" @implementation UINavigationBar (CustomNavBarImage) - (void) setNavBackgroundImage:(UIImage*)bgImage {  if (bgImage == NULL)  return; UIImageView *myImageView= [[UIImageView alloc] initWithImage:bgImage]; myImageView.frame = CGRectMake(0,0,320,44); [self addSubview:myImageView]; [myImageView release]; // If You want to add some buttons and title go through that //[myImageView release]; UI...

Sample Code: // Set a method for this -(void) addButtonWithFrame :(CGRect ) btnFrame  andName: (NSString *) titleName { UIButton *addButton = [UIButton buttonWithType: UIButtonTypeCustom]; // (Value = 0) means NO Button Style. /* iOS Library provide more Types of UIButton , like UIButtonTypeRoundedRect (Value = 1), Means a Rounded-Rectangle Style UIButtonTypeDetailDisclosure (Value = 2), Means a Details Disclosure Button UIButtonTypeInfoLight (Value = 3), Means an Information button with light background UIButtonTypeInfoDark (Value = 4), Means an Information Button with dark background UIButtonTypeContactAdd (Value = 5), Means a contact add button. You can choose any one of them. */ //Set Button Frame addButton.frame = btnFrame; //Set Tag addButton.tag = cnt; //cnt = 0,1,2…..so on. // Set Title [addButton setTitle : titleName forState: UIControlSateNormal]; //If you want to user touch and title highlighted, changes the state like : // [add...

Use the following functions to get Image from Web URL or Main Bundle (Resource Folder) or Document Directory // From URL -(UIImage *) getImageFromURL : (NSString *) urlString { NSURL *pathURL = [NSURL URLWithString: urlString]; NSData *imageData = [NSData dataWithContentOfURL:pathURL]; UIImage *getImage = [[UIImage alloc]initWithData:imageData]; return getImage; } // From Bundle -(UIImage *) getImageFromResources_FileName: (NSString *)file_Name andFileType: (NSString *) file_Extension { NSString *filePath = [[NSBundle mainBundle] pathForResource : file_Name ofType: file_Extension]; UIImage *getImage = [UIImage imageWithContentsOfFile:filePath]; return getImage; } // From Document Directory (NSDocumentDirectory) -(UIImage *) getImageFromDocumentDirectory_ImageName:(NSString *) imageName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *docDirectory = [paths objectAtIndex:0]; NSString *...