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Using iPhone TableView for Displaying Data

Sushant — Fri, 01 Apr 2011 09:18:23 +0000

This is the “TableView” example. There are many ways to display the “TableView” in iPhone. I am going to show you the simplest way to execute the TableView.

Step 1: Open the Xcode and create a new Xcode project using View base application template. Give the application name “TableView”. As shown in the figure below:

Step 2: Expand classes and notice Interface Builder created the Table_ViewViewController.h and Table_ViewViewController.m class for you. Expand Resources and notice the template generated a separate nib, Table_ViewViewController.xib.

Step 3: Open the TableViewViewController.h file and make the following changes in the file.

#import 
@interface Table_ViewViewController : UIViewController {

        NSArray *listData;
}

@property(nonatomic,retain) NSArray *listData;

@end

Step 4: Double click the Table_ViewViewController.xib file and after that make the following changes.
A) Open the view window, first drag the table view from the library and place it to the view window and select the table.

B) Connect File’s Owner icon to tableview and select “View”.
Once this is done, save the TableViewViewController.xib file, close it and go back to the Xcode.

Step 5: If you want to add some image in table, then you have to go to Resources folder and add image in resource folder.

Step 6: Open the TableViewViewController.m file and make the following changes in the file.

#import "Table_ViewViewController.h"
@implementation Table_ViewViewController

@synthesize listData;
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.

- (void)viewDidLoad {

        NSArray *array = [[NSArray alloc] initWithObjects:@"Vishal",@"Vinod",@"Sachin",@"Nilesh",@"Balu",@"Amrita",

                                          @"susho",@"Akash",@"Nil",@"Lop",@"Koi",@"Absoulate",@"Dwalin",

                                          @"Fili",@"Kili",@"Oin",@"Gloin",@"Bifur",@"Bofur",@"Bombur",nil];

        self.listData = array;

        [array release];

        self.listData= array;

    [super viewDidLoad];

}
- (void)didReceiveMemoryWarning {

        // Releases the view if it doesn’t have a superview.

    [super didReceiveMemoryWarning];

        // Release any cached data, images, etc that aren’t in use.

}
- (void)viewDidUnload {

        // Release any retained subviews of the main view.

        // e.g. self.myOutlet = nil;

}
- (void)dealloc {

    [super dealloc];

}

-(NSInteger)tableView:(UITableView *)tableView

numberOfRowsInSection:(NSInteger)section

{

        return [self.listData count];

}
-(UITableViewCell *)tableView:(UITableView *)tableView

                cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

        static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier";

        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:

                                                         SimpleTableIdentifier];

        if(cell == nil){

                cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero

                                                                           reuseIdentifier: SimpleTableIdentifier] autorelease];

        }

        NSUInteger row = [indexPath row];

        cell.textLabel.text = [listData objectAtIndex:row];

        //cell.font=[UIFont boldSystemFontOfSize:20];

        UIImage *image = [UIImage imageNamed:@"macosxlogo.png"];

        cell.image = image;

        return cell;
                
}

@end

Step 7: Now build and run the code and view the Output in the Simulator.

You can download source code from here TableView

ImageRotate using touch in iPhone

Sushant — Wed, 09 Feb 2011 11:41:32 +0000

This is the ImageRotate example . In this example we will see how to image rotate anywhere of the screen using touch.

Step 1: Create a View base application using template. Give the application name “ImageMove_iPhone”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the ImageMove_iPhoneViewController class for you. Expand Resources and notice the template generated a separate nib,ImageMove_iPhoneViewController.xib, for the “ImageMove_iPhone”.

Step 4: We need to add UIView class in the project. Select Classes -> Add -> New File -> Cocoa Touch Class -> Objective C class -> select UIView from the Subclass of. Give the file name “ImageMove”.

Step 5: We have added one resource in the Resources folder. Give the name of the resource “11.jpg”,”feder.jpg”.

Step 6: In the ImageMove.h file, we specified the superclass as a UIImageView. So make the following changes in the file:

#import 
@interface ImageMove : UIImageView {
}

Step 7: Open the ImageMov.m file , make the following changes in the file.

-(id) initWithImage:(UIImage *)image {
if(self =[super initWithImage:image]){
[self setUserInteractionEnabled:YES]; 
[self setMultipleTouchEnabled:YES];
}return self;
}
- (void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

{

        if ([touches count] == 1) {

                CGPoint newTouch = [[touches anyObject] locationInView:[self superview]]; 

                CGPoint lastTouch = [[touches anyObject] previousLocationInView: [self superview]];

                float xDif = newTouch.x - lastTouch.x; 

                float yDif = newTouch.y - lastTouch.y;

                CGAffineTransform translate = CGAffineTransformMakeTranslation(xDif, yDif);

                [self setTransform: CGAffineTransformConcat([self transform], translate)]; 

        } 

}

Step 8: In the the ImageMove_iPhoneViewController.h file we have import “ImageMove.h” file.

Step 9: Open the mageMove_iPhoneViewController.m file, we create ImageView and make it visible. So make the following changes in the file.

-(void)viewDidLoad {
[super viewDidLoad];


        ImageMove* imageMove =[[ImageMove alloc] initWithImage:[UIImage imageNamed:@"11.jpg"]];
[imageMove setFrame:CGRectMake(110, 60, [imageMove frame].size.width,[imageMove frame].size.height)];
[[self view] addSubview:imageMove];
[imageMove release];



        ImageMove* imageMove1 =[[ImageMove alloc] initWithImage:[UIImage imageNamed:@"feder.jpg"]];
[imageMove1 setFrame:CGRectMake(110, 200, [imageMove1 frame].size.width,[imageMove1 frame].size.height)];
[[self view] addSubview:imageMove1];
[imageMove1 release];
}

Step 10: Now compile and run the application in the Simulator.

You can Download SourceCode from here ImageMove_iPhone

Music Play in iPhoneOS4

Sushant — Wed, 28 Jul 2010 13:27:15 +0000

This is the very simple example . In this application we will see how to play music in iPhone oS4.

Step 1: Create a new project in Xcode using View base application. Give the application name “MusicPlay_OS4”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: xpand classes and notice Interface Builder created the MusicPlay_OS4ViewController class for you. Expand Resources and notice the template generated a separate nib, MusicPlay_OS4ViewController.xib, for the “MusicPlay_OS4”.

Step 4: We need to add sound files in the Resources folder. Give the name of the sound files “music.mp3”,”sound.aif”. And also add a backgroung image.

Step 5: We need to add also two frameworks.So select Frameworks -> Add -> Existing Framework -> then select AVFoundation.framework and AudioToolbox.framework.

Step 6: In the MusicPlay_OS4ViewController.h file, we have importAVFoundation.framework and AudioToolbox.framework. Create a instance of AVAudioPlayer and UIButton class and create two IBAction method. So make the following changes in the file.

#import 
#import 
#import 
@interface MusicPlay_OS4ViewController : UIViewController 

{

        SystemSoundID systemSoundID;

        AVAudioPlayer *player;

        UIButton *StartStopSound;

}
@property (nonatomic, retain) IBOutlet AVAudioPlayer *player;

@property (nonatomic, retain) IBOutlet UIButton *StartStopSound;

- (IBAction) playSound: (id) sender;

- (IBAction) playSong: (id) sender;

Step 7: Double click the MusicPlay_OS4ViewController.xib file and open it to the Interface Builder. First drag the Image View from the library and place it to the View window. Select the image view and bring up Attribute Inspector, select the background image. Drag two Round Rect button from the library and place it to the view window.Give the name of the button “Play Sound “and “Play Song” Connect File’s Owner icon to the View icon and select View. Drag File’s Owner icon to the Play Song button and select StartStopSound. Select the Play Sound button and bring up Connection Inspector and drag from the Touch Up Inside to the File’s Owner icon, select playSound: action. Do the same thing with PlaySong button and select the playSong: action. Now save the MusicPlay_OS4ViewController.xib file, close it and go back to the Xcode.

Step 8: Open the MusicPlay_OS4ViewController.m file and make the following changes in the file.

-(void)viewDidLoad {

        NSLog(@"InView did load");

        AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:[[NSBundle mainBundle]

                                                                                                                                           pathForResource:@"sound" ofType:@"aif"]],
&systemSoundID);

        player =[[AVAudioPlayer alloc]

                          initWithContentsOfURL:[NSURL fileURLWithPath:
[[NSBundle mainBundle] pathForResource:@"music" ofType:@"mp3"]]

                          error:nil];

[player prepareToPlay];

}

-(IBAction) playSound:(id) sender {

        NSLog(@"In Sample");

        AudioServicesPlaySystemSound(systemSoundID);

}
-(IBAction) playSong:(id) sender {

        if ([[NSString stringWithFormat:@"%@", [StartStopSound titleForState:UIControlStateNormal]] isEqualToString:@"Play Song"]) {    

                [player play];  

                [StartStopSound setTitle:@"Stop Song" forState:UIControlStateNormal];   }

        else {  

                [player stop];  

                [StartStopSound setTitle:@"Play Song" forState:UIControlStateNormal];   

        }       

}

Step 9: Now compile and run the application in the Simulator.

You can Download Source Code from here MusicPlay_OS4

Display WebPage and AudioFile play in TabBar Application

Sushant — Fri, 23 Jul 2010 10:17:58 +0000

This is the TabBar application. In this application we will see how to display Web page and play audio file in the iPad. We will create this application using TabBar Application Template.

Step 1: Create a TabBar application using template. Give the application name “Tabbar_Videoplay_iPad”.

Step 2: code automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the FirstViewController class for you. Expand Resources and notice the template generated a separate nib,FirstViewr.xib, for the “ Tabbar_Videoplay_iPad”.

Step 4: We need to add UIViewController class in the project . Select classes -> Add -> New Files -> Select UIViewController class and give the class name “AudioPlayViewController”. Select corresponding .xib file and targeted for iPad.

Step 5: We have added AudioToolbox and AVFoundation framework in the Frameworks folder.

Step 6: We need to add two music file in the resource folder. Give the name of the music file “sound.aif”,”music.mp3″.

Step 7: In the FirstViewController.h file we have created instance of UIWebView class . So make the following changes in the file.

#import 
@interface FirstViewController : UIViewController {

  IBOutlet UIWebView *webDisplay;

}

@property(nonatomic,retain) UIWebView *webDisplay;

Step 8: Double click the MainWindow.xib file and open it to the Interface Builder. Select the FirstViewController from the TabBar Controller and bring up Attribute Inspector and delete the NIB name (See the figure 1). Now drag the WebView from the library and place it to the view window (See the figure 2). Select the first tab from the view window and bring up Connection Inspector and connect webDisplay to the Web View (See the figure 3). Save the MainWindow.xib file and close it and go back to the Xcode.

Figure 1

Figure 2

Figure 3

Step 9: Open the FirstViewController.m file and make the following changes in the file.

- (void)viewDidLoad {

        NSString *urlAddress = @"http://www.google.com";

        NSURL *url = [NSURL URLWithString:urlAddress];

        NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

        [webDisplay loadRequest:requestObj];

    [super viewDidLoad];

}

Step 10: In the AudioPlayViewController.h file , we have import AudioToolbox and AVFoundation framework. Create an instance of AVAudioPlayer and UIButton class. Define two IBAction method. So make the following changes in the file.

#import 
#import 
#import 
@interface AudioPlayViewController : UIViewController   {
        SystemSoundID systemSoundID;

        AVAudioPlayer *player;

        UIButton *StartStopSound;

        

}
@property (nonatomic, retain) IBOutlet AVAudioPlayer *player;

@property (nonatomic, retain) IBOutlet UIButton *StartStopSound;

- (IBAction) playSound: (id) sender;

- (IBAction) playSong: (id) sender;

Step 11: Double click the AudioPlayViewController.xib file and open it to the view window. First drag the two Round Rect from the library and place it to the view window and give the name “Play Sound” , “Play Song”. Select the ”Play Sound” button and bring up connection Inspector and drag Touch Up Inside to the File Owner icon select playSound: action. Do the same thing for the “Play Song” button and select the playSong: action. Connect File’s Owner icon to the “Play Song” button and select StartStopSound. Now save the AudioPlayViewController.xib file, close it and go back to the Xcode.

Step 12: Open the AudioPlayViewController.m file and make the following changes:

-(void)viewDidLoad {

        NSLog(@"InView did load");

        AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:[[NSBundle mainBundle]

                                                                                                                                           pathForResource:@"sound" ofType:@"aif"]],
&systemSoundID);

        player =[[AVAudioPlayer alloc]

                          initWithContentsOfURL:[NSURL fileURLWithPath:
[[NSBundle mainBundle] pathForResource:@"music" ofType:@"mp3"]]

                          error:nil];

[player prepareToPlay];

}

-(IBAction) playSound:(id) sender {

        NSLog(@"In Sample");

        AudioServicesPlaySystemSound(systemSoundID);

}
-(IBAction) playSong:(id) sender {

        if ([[NSString stringWithFormat:@"%@", [StartStopSound titleForState:UIControlStateNormal]] isEqualToString:@"Play Song"]) {    

                [player play];  

                [StartStopSound setTitle:@"Stop Song" forState:UIControlStateNormal];   }

        else {  

                [player stop];  

                [StartStopSound setTitle:@"Play Song" forState:UIControlStateNormal];   

        }       

}

Step 13: Double click the MainWindow.xib file and open it to the Interface Builder. Select the ViewController from the TabBar Controller in MainWindow and bring up Identity Inspector and change the class name into AudioPlayViewController and bring up Attribute Inspector, set the NIB name into “AudioPlayViewController”. Now save the MainWindow.xib file, close it and go back to the Xcode.

Step 14: Now Compile the application and run it in the Simulator.

You can Download SourceCode from here Tabbar_Videoplay_iPad

Hello World with Navigation Base application in iPhone

Sushant — Wed, 14 Jul 2010 11:42:14 +0000

This is the very simple example. In this example we will see how to Hello iPhone display using navigation base application.

Step 1: Create a Navigation Base application using template. Give the application name “HelloWorld_NavigationBase”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the RootViewController class for you (See the figure below). Expand Resources and notice the template generated a separate nib,RootViewController.xib, for the “HelloWorld_NavigationBase”.

Step 4: Open the RootViewController.m file, for this example we need to add only two lines of code in this file . So make the changes.

-(void)viewDidLoad {
[super viewDidLoad];
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.

     self.navigationItem.rightBarButtonItem = self.editButtonItem;

}
  - (UITableViewCell *)tableView:(UITableView *)tableView   cellForRowAtIndexPath:(NSIndexPath *)indexPath {
   static NSString *CellIdentifier = @"Cell";
   UITableViewCell *cell = [tableView  dequeueReusableCellWithIdentifier:CellIdentifier];

  if (cell == nil) {

   cell = [[[UITableViewCell alloc]   initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]    autorelease];

}
  // Configure the cell. // added below two line

    [[cell textLabel] setTextAlignment:UITextAlignmentCenter];

    [cell.textLabel setText:@"Hello iPhone!"];
   return cell;

}

Step 5: Now compile and run the application in the Simulator.

You can Download SourceCode from here HelloWorld_NavigationBase

MapKit example in iPhone

Sushant — Tue, 13 Jul 2010 11:01:52 +0000

In this application we will see how to map display and how to point out any location using latitude and longitude.

Step 1: Create a View base application using template. Give the application name “MapKitDisplay”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the MapKitDisplayViewController class for you. Expand Resources and notice the template generated a separate nib, MapKitDisplay ViewController.xib, for the “ MapKitDisplay”.

Step 4: We need to add NSObject class in the project. Select Classes -> Add -> New File -> Cocoa Touch Class -> Objective C class -> select NSObject from the Subclass of. Give the file name “DisplayMap”.

Step 5: We have added two framework in the project. Select Frameworks -> Add -> Existing Frameworks -> Add CoreLocation.framework and MapKit.framework.

Step 6: In the MapKitDisplayViewController.h file, we have import MapKit framework, and define MKMapViewDelegate protocol in the file, also add Outlet with a pointer to the MkMapView class. So make the following changes in the file.

#import 
#import 
@class DisplayMap;
@interface MapKitDisplayViewController : UIViewController  {

        IBOutlet MKMapView *mapView;

}

@property (nonatomic, retain) IBOutlet MKMapView *mapView;

Step 7: Double click the MapKitDisplayViewController.xib file and open it to the Interface Builder. First drag the MapView from the library and place it to the view window. Connect File’s Owner icon to the View icon and select view. Connect File’s Owner icon to the MKMapView and select mapView. Now save the MapKitDisplayViewController.xib file, close it and go back to the Xcode.

Step 8: Open the MapKitDisplayViewController.m file and make the following changes in the file:

-(void)viewDidLoad {
[super viewDidLoad];

[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];

        MKCoordinateRegion region ={{0.0, 0.0 }, { 0.0, 0.0 }}; 

        region.center.latitude = 22.569722 ;

        region.center.longitude =88.369722;

        region.span.longitudeDelta = 0.01f;

        region.span.latitudeDelta = 0.01f;
[mapView setRegion:region animated:YES]; 

[mapView setDelegate:self];

        DisplayMap *ann =[[DisplayMap alloc] init]; 

        ann.title =@" Kolkata";

        ann.subtitle =@"Mahatma Gandhi Road"; 

        ann.coordinate = region.center; 
[mapView addAnnotation:ann];
}
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:

 (id )annotation {

        MKPinAnnotationView *pinView = nil; 

        if(annotation != mapView.userLocation) 

        {

                static NSString *defaultPinID = @"com.invasivecode.pin";

                pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];

                if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc]

                                                                                  initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
                pinView.pinColor = MKPinAnnotationColorRed; 

                pinView.canShowCallout = YES;

                pinView.animatesDrop = YES;

                } 

        else {

                [mapView.userLocation setTitle:@"I am here"];

        }

        return pinView;

}

We define here first, coordinate regions to zeros, Then we enter coordinates of our place that, Kolkata (Mahatma Gandhi Road), define the latitude and longitude of this place. We create an instantiate of DisplayView object and add it to our map. To do this, we add the delegate function that will display the annotations on to our map. We start by having DisplayView name a pointer we’ll call “ann.”

Step 8: In the DisplayView.h file , we have import and set CLLocation class reference to incorporate the geographical coordinates and altitude of our device. So make the following changes in the file.

#import 
#import 
@interface DisplayMap : NSObject  {
        CLLocationCoordinate2D coordinate; 

        NSString *title; 

        NSString *subtitle;

}

@property (nonatomic, assign) CLLocationCoordinate2D coordinate; 

@property (nonatomic, copy) NSString *title; 

@property (nonatomic, copy) NSString *subtitle;

Step 9: Open the DisplayView.m file and make the following changes in the file:

#import "DisplayMap.h"

@implementation DisplayMap
@synthesize coordinate,title,subtitle;

-(void)dealloc{

        [title release];

        [super dealloc];

}

Step 10: Now compile and run the application on the simulator.

You can Download SourceCode from here MapKitDisplay

Image change using touch function in iPhone

Sushant — Mon, 12 Jul 2010 07:48:08 +0000

In this application we will see how to images change using touch function.

Step 1: Create a Window base application using template. Give the application name “MovingBall12”.

Step 2 : Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: We need to add UIView class i the project. Select Classes -> Add -> New File -> Cocoa Touch Class -> Objective C class -> select UIView from the Subclass of. Give the file name “BallView”.

Step 4: We have added two resources in the Resources folder. Give the name of the resource “1.png”,”2.png”.

Step 5: In the MovingBall12AppDeleagte.h file, we have added BallView class, NSTimer , so make the following changes in the file.

#import 
@class BallView;
@interface MovingBall12AppDelegate : NSObject  {

    UIWindow *window;

        BallView *ballView;

        int count;

        NSTimer *ViewTimer;

}
@property (nonatomic, retain) IBOutlet UIWindow *window;

@property (nonatomic, retain) IBOutlet BallView *ballView;

@property (nonatomic, retain) IBOutlet NSTimer *ViewTimer;

Step 6: Open the BallView.h file, we have added UIImageView, UILabel, NSTimer, so make the following chnages:

#import 

@interface BallView : UIView {

        NSTimer *ViewTimer;

        UIImageView *theBall;

        UILabel *touchMe;

        CGRect touchMeFrame;

        int count,switcher;

        int directionX, directionY;

        BOOL gameRunning;

        NSArray *images;

}
@property(nonatomic,retain) NSTimer *ViewTimer;

@property(nonatomic,retain) IBOutlet UIImageView *theBall;

@property(nonatomic,retain) IBOutlet UILabel *touchMe;

@property(nonatomic,retain) NSArray *images;
@property CGRect touchMeFrame;

@property int directionX, directionY;

@property BOOL gameRunning;

Step 7: Double click the MainWindow,xib file and open it to the Interface Builder. Double click the window icon from the main window and open it , first drag the View from the library and place it to the window. Next drag label and ImageView from the library and place it to the view window. Select the View from the main window and bring up Identity Inspector and change the class name into BallView. Connect BallView to the label and select touchMe,and connect BallView to the ImageView and select the theBall (See the figure below). Now save MainWindow.xib file, close it and go back to the Xcode.

Step 8: Open the BallView.m fie make the following changes in the file.

-(void)onTimer {

        CGPoint center = theBall.center;

float newX = center.x + directionX;
float newY = center.y + directionY;

int rndX =rand()% 3 +1;
int rndY =rand()% 3 +1;

int screenX = self.frame.origin.x + self.frame.size.width;
int screenY = self.frame.origin.y + self.frame.size.height;

BOOL changed =NO;
if(newX < 0){

                directionX = rndX;

                newX =0;

                changed =YES;
}elseif(newX > screenX){

                directionX =-rndX;

                newX = screenX;

                changed =YES;
}

if(newY < 0){

                directionY = rndY;

                newY =0;

                changed =YES;
}elseif(newY > screenY){

                directionY =-rndY;

                newY = screenY;

                changed =YES;
}

if((rand()% 1000) > 997){

                directionY *=-1;

                changed =YES;
}

if((rand()% 1000) > 997){

                directionX *=-1;

                changed =YES;
}

if(changed ==YES){
int img = switcher++%(int)[images count];

                theBall.image =[images objectAtIndex:img];

}

        CGPoint newCenter = CGPointMake(newX, newY);
[theBall setCenter:newCenter];

}
-(void)toggleTimer:(int)withCount {

        if (withCount % 2 != 0) {

                [ViewTimer invalidate];

                touchMe.backgroundColor = [UIColor whiteColor];

                touchMe.textColor = [UIColor blackColor];

                gameRunning = NO;

        } else {

                ViewTimer = [NSTimer scheduledTimerWithTimeInterval:0.0075 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];   

                touchMe.backgroundColor = [UIColor blackColor];

                touchMe.textColor = [UIColor whiteColor];

                gameRunning = YES;

        }

}
-(void)doInitialSetup {

        sranddev();

        count = 0;

        int rndX = rand() % 3 + 1;

        int rndY = rand() % 3 + 1;

        directionX = -rndX;

        directionY = -rndY;

        UIImage *img1 = [UIImage imageNamed:@"1.png"];

        UIImage *img2 = [UIImage imageNamed:@"2.png"];

        self.images = [NSArray arrayWithObjects:img1, img2, nil];

        int img = (int)count % (int)[images count];

        theBall.image = [images objectAtIndex:img];

        gameRunning = NO;

}

-(BOOL) isPointInTouchMe:(CGPoint)point {

        return (point.x >= touchMe.frame.origin.x 

                        && point.x <= touchMe.frame.origin.x + touchMe.frame.size.width 

                        && point.y >= touchMe.frame.origin.y 

                        && point.y <= touchMe.frame.origin.y + touchMe.frame.size.height);

}

-(BOOL) isPointInTheBall:(CGPoint)point {

        return (point.x >= theBall.frame.origin.x

                        && point.x <= theBall.frame.origin.x + theBall.frame.size.width

                        && point.y >= theBall.frame.origin.y

                        && point.y <= theBall.frame.origin.y + theBall.frame.size.height);

}
-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

        UITouch *touch = [touches anyObject];

        CGPoint point = [touch locationInView:self];

        if ([self isPointInTouchMe:point]) {

                [self toggleTimer:count++];

        }

}

-(void) awakeFromNib {

        [self doInitialSetup];

}
- (id)initWithFrame:(CGRect)frame {

    if (self = [super initWithFrame:frame]) {

                [self doInitialSetup];

    }

    return self;

}
- (void)drawRect:(CGRect)rect {

        [super drawRect:rect];

}

Step 9: Now compile and run the application on the Simulator.

You can Download SourceCode from here MovingBall12

Send SMS from the iPhone OS4

Sushant — Thu, 01 Jul 2010 06:58:07 +0000

This is the very simple example. In this example we will see how to SMS Send from the iPhone OS4.

Step 1: Create a View base application using template. Give the application name “SMSSend”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the SMSSendViewController class for you. Expand Resources and notice the template generated a separate nib,SMSSendViewController.xib, for the “SMSSend”.

Step 4: We need to add MessageUI.framework in the Frameworks folder. Select-> Frameworks folder -> Add ->Existing Frameworks -> then select MessageUI.framework.

Step 5: In the SMSSendViewController.h file , we have created instance of UILable class and define one method. So make the following changes in the file:

#import 
#import 
#import 
@interface SMSSendViewController : UIViewController  {

        

        UILabel *SMS;

}
@property (nonatomic, retain) UILabel *SMS;
-(void)ComposerSheet;

Step 6: Open the SMSSendViewController.m file and make the following changes:

-(void)viewDidLoad {
[super viewDidLoad];

        UIButton *smsButton =[UIButton buttonWithType:UIButtonTypeRoundedRect];

        smsButton.frame = CGRectMake(97.0, 301.0, 125.0, 37.0);

        smsButton.adjustsImageWhenDisabled =YES;

[smsButton setTitle:@"SMS Send" forState:UIControlStateNormal];
[smsButton setTitleColor:[UIColor colorWithWhite:0.000 alpha:1.000] forState:UIControlStateNormal];
[smsButton setTitleShadowColor:[UIColor colorWithWhite:0.000 alpha:1.000] forState:UIControlStateNormal]; 
[smsButton addTarget:self action:@selector(ComposerSheet) forControlEvents:UIControlEventTouchUpInside];

        SMS =[[UILabel alloc] initWithFrame:CGRectMake(20.0, 360.0, 280.0, 29.0)];

        SMS.frame = CGRectMake(20.0, 360.0, 280.0, 29.0);

        SMS.adjustsFontSizeToFitWidth =YES;

        SMS.hidden =YES;

        SMS.text =@"";

        SMS.userInteractionEnabled =NO;

[self.view addSubview:smsButton];  
[self.view addSubview:SMS];  
}
-(void)ComposerSheet 

{

        MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];

        picker.messageComposeDelegate = self;

        picker.recipients = [NSArray arrayWithObject:@"23234567"];  

        picker.body = @"iPhone OS4";

        [self presentModalViewController:picker animated:YES];

        [picker release];

}
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result {

        SMS.hidden = NO;

        switch (result)

        {

                case MessageComposeResultCancelled:

                        SMS.text = @"Result: canceled";

                        NSLog(@"Result: canceled");

                        break;

                case MessageComposeResultSent:

                        SMS.text = @"Result: sent";

                        NSLog(@"Result: sent");

                        break;

                case MessageComposeResultFailed:

                        SMS.text = @"Result: failed";

                        NSLog(@"Result: failed");

                        break;

                default:

                        SMS.text = @"Result: not sent";

                        NSLog(@"Result: not sent");

                        break;

        }

        [self dismissModalViewControllerAnimated:YES];

}

Step 7: Now compile and run the application. Remember you need to run this application on the iPhone device not a simulator.

You can Download SourceCode from here SMSSend

How to Play Video in iPhoneOS4

Sushant — Tue, 29 Jun 2010 12:21:16 +0000

In this example we will see how to play video in iPhone OS4.

Step 1: Create a View base application using template. Give the application name “VideoPlayiPhoneOS4”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Xpand classes and notice Interface Builder created the VideoPlayiPhoneOS4ViewController class for you. Expand Resources and notice the template generated a separate nib,VideoPlayiPhoneOS4ViewController.xib, for the “VideoPlayiPhoneOS4”.

Step 4: We need to add MediaPlayer.framework in the Frameworks folder. Select-> Frameworks folder -> Add ->Existing Frameworks -> then select MediaPlayer.framework.

Step 5: In the VideoPlayiPhoneOS4ViewController.h file , we have created instance of MPMoviePlayerController class, that manage the playback of a movie from a file or from the network, and create a instance of NSURL class . So make the following changes in the file.

#import 
#import 
@interface VideoPlayiPhoneOS4ViewController : UIViewController {
    MPMoviePlayerController *moviePlayer;

        NSURL *movieURL;

        

}

Step 6: Open the VideoPlayiPhoneOS4ViewController.m file and make the following changes:

-(void)viewWillAppear:(BOOL)animated

{

        NSString *urlStr = [[NSBundle mainBundle] pathForResource:@"3idiots.mov" ofType:nil];

        NSURL *url = [NSURL fileURLWithPath:urlStr];

        moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:url];

        [self.view addSubview:moviePlayer.view];

        moviePlayer.view.frame = CGRectMake(0, 0, 300, 400);  

        [moviePlayer play];

}

Step 7: Now compile and run the application in the Simulator.

You can Download SourceCode from here VideoPlayiPhoneOS4

LocalNotification in iPhone OS4

Sushant — Thu, 24 Jun 2010 13:14:10 +0000

In this application we will see how to LocalNotification worked. Basically, apple has added new services called Local Notification, which lets apps lunch notifications without the need for an external server.

Step 1: Create a Window base application using template. Give the application name “Multitusking_LocalNotify”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: In the Multitusking_LocalNotifyAppDelegate.h file, we have added one instance variable bgTask. So make the following changes in the file:

#import 
@interface Multitusking_LocalNotifyAppDelegate : NSObject  {

    UIWindow *window;

        UIBackgroundTaskIdentifier bgTask;

}
@property (nonatomic, retain) IBOutlet UIWindow *window;

Step 4: Open the Multitusking_LocalNotifyAppDelegate.m file , and make the following changes in the file.

@interface ItemList :NSObject{

        NSInteger year;

        NSInteger month;

        NSInteger day;

        NSInteger hour;

        NSInteger minute;

        NSInteger second;
NSString*eventName;
}
@property (nonatomic, readwrite) NSInteger year;

@property (nonatomic, readwrite) NSInteger month;

@property (nonatomic, readwrite) NSInteger day;

@property (nonatomic, readwrite) NSInteger hour;

@property (nonatomic, readwrite) NSInteger minute;

@property (nonatomic, readwrite) NSInteger second;

@property (nonatomic, copy) NSString *eventName;
@end
@implementation ItemList
@synthesize year, month, day, hour, minute, second, eventName;
@end
#import "Multitusking_LocalNotifyAppDelegate.h"
@implementation Multitusking_LocalNotifyAppDelegate
@synthesize window;

#define ItemListKey @"EVENTKEY1"

#define MessageTitleKey @"MSGKEY1"

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

        NSLog(@"application: didFinishLaunchingWithOptions:");

    // Override point for customization after application launch

        UILocalNotification *localNotif = [launchOptions

                                                                           objectForKey:UIApplicationLaunchOptionsLocalNotificationKey]; 

        if (localNotif) {

                NSString *itemName = [localNotif.userInfo objectForKey:ItemListKey]; 

                //  [viewController displayItem:itemName]; // custom method 

                application.applicationIconBadgeNumber = localNotif.applicationIconBadgeNumber-1; 

                NSLog(@"has localNotif %@",itemName);

        }

        else {

                [[UIApplication sharedApplication] cancelAllLocalNotifications];

                NSDate *now = [NSDate date];

                NSLog(@"now is %@",now);

                NSDate *scheduled = [now dateByAddingTimeInterval:120] ; //get x minute after

                NSCalendar *calendar = [NSCalendar currentCalendar];

                unsigned int unitFlags = NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit;

                NSDateComponents *comp = [calendar components:unitFlags fromDate:scheduled];

                NSLog(@"scheduled is %@",scheduled);

                ItemList *itemList = [[ItemList alloc] init];

                itemList.day = [comp day];

                itemList.month = [comp month];

                itemList.year = [comp year];

                itemList.hour = [comp hour];

                itemList.minute = [comp minute];

                itemList.eventName = @"Testing Event";

                //      NSLog(@"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");

                [self scheduleNotificationWithItem:itemList interval:1];

                NSLog(@"scheduleNotificationWithItem");

        }

        [window makeKeyAndVisible];

        return YES;

}
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notif {

        NSLog(@"application: didReceiveLocalNotification:");

        NSString *itemName = [notif.userInfo objectForKey:ItemListKey];

        NSString *messageTitle = [notif.userInfo objectForKey:MessageTitleKey];

        //      NSLog(@"itemNameeeeeeeeeeeeeeeeeee%@",ToDoItemKey);

        //NSLog(@"messageTitleeeeeeeeeeeeeeee %@",MessageTitleKey);

        // [viewController displayItem:itemName]; // custom method 

        [self _showAlert:itemName withTitle:messageTitle];

        NSLog(@"Receive Local Notification while the app is still running…");

        NSLog(@"current notification is %@",notif);

        application.applicationIconBadgeNumber = notif.applicationIconBadgeNumber-1; 

}
- (void) _showAlert:(NSString*)pushmessage withTitle:(NSString*)title

{

        UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:title message:pushmessage delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];

        [alertView show];

        if (alertView) { 

                [alertView release]; 

        }

}

- (void)scheduleNotificationWithItem:(ItemList *)item interval:(int)minutesBefore {

        NSCalendar *calendar = [NSCalendar autoupdatingCurrentCalendar];

    NSDateComponents *dateComps = [[NSDateComponents alloc] init];

    [dateComps setDay:item.day];

    [dateComps setMonth:item.month];

    [dateComps setYear:item.year];

    [dateComps setHour:item.hour];

    [dateComps setMinute:item.minute];

    NSDate *itemDate = [calendar dateFromComponents:dateComps];

    [dateComps release];

    UILocalNotification *localNotif = [[UILocalNotification alloc] init];

    if (localNotif == nil)

        return;

    localNotif.fireDate = [itemDate dateByAddingTimeInterval:-(minutesBefore*60)];

        NSLog(@"fireDate is %@",localNotif.fireDate);

    localNotif.timeZone = [NSTimeZone defaultTimeZone];

    localNotif.alertBody = [NSString stringWithFormat:NSLocalizedString(@"%@ in %i minutes.", nil),

                                                        item.eventName, minutesBefore];

    localNotif.alertAction = NSLocalizedString(@"View Details", nil);

    localNotif.soundName = UILocalNotificationDefaultSoundName;

    localNotif.applicationIconBadgeNumber = 1;

        //  NSDictionary *infoDict = [NSDictionary dictionaryWithObject:item.eventName forKey:ToDoItemKey];

        NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:item.eventName,ItemListKey, @"Local Push received while running", MessageTitleKey, nil];

    localNotif.userInfo = infoDict;

    [[UIApplication sharedApplication] scheduleLocalNotification:localNotif];

        NSLog(@"scheduledLocalNotifications are %@", [[UIApplication sharedApplication] scheduledLocalNotifications]);

    [localNotif release];

}
- (NSString *) checkForIncomingChat {

        return @"javacom";

};
- (void)applicationDidEnterBackground:(UIApplication *)application {

    NSLog(@"Application entered background state.");

    // UIBackgroundTaskIdentifier bgTask is instance variable

    NSAssert(self->bgTask == UIBackgroundTaskInvalid, nil);

    bgTask = [application beginBackgroundTaskWithExpirationHandler: ^{

        dispatch_async(dispatch_get_main_queue(), ^{

            [application endBackgroundTask:self->bgTask];

            self->bgTask = UIBackgroundTaskInvalid;

        });

    }];

    dispatch_async(dispatch_get_main_queue(), ^{

        while ([application backgroundTimeRemaining] > 1.0) {

            NSString *friend = [self checkForIncomingChat];

            if (friend) {

                UILocalNotification *localNotif = [[UILocalNotification alloc] init];

                if (localNotif) {

                    localNotif.alertBody = [NSString stringWithFormat:

                                                                                        NSLocalizedString(@"%@ has a message for you.", nil), friend];

                    localNotif.alertAction = NSLocalizedString(@"Read Msg", nil);

                    localNotif.soundName = @"alarmsound.caf";

                    localNotif.applicationIconBadgeNumber = 1;

                                        NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:@"Your Background Task works",ItemListKey, @"Message from javacom", MessageTitleKey, nil];

                                        localNotif.userInfo = infoDict;

                    [application presentLocalNotificationNow:localNotif];

                    [localNotif release];

                    friend = nil;

                    break;

                }

            }

        }

        [application endBackgroundTask:self->bgTask];

        self->bgTask = UIBackgroundTaskInvalid;

    });

}

Step 5: Now compile and run the application in the Simulator.

You can Download SourceCode from here Multitusking_LocalNotify

TabBarExampleDemo in iPhone

Sushant — Thu, 24 Jun 2010 05:42:25 +0000

In this example we will see how to work TabBarController in the Window base application.

Step 1: Create a Window base application using template. Give the application name “TabBarController_Windowbase”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: We need to add three UIViewController in the class folder. Select classes -> Add -> New File -> Cocoa Touch Class -> select UIViewControllersubclass . Create the corresponding .xib file. Give the classes name “FirstTableViewController”,”SecondViewController” and “ThirdTableViewController”.

Step 4: We add pList in the Resource folder. Give the PropertyList name “ThirdpList.plist”.

Step 5: In the AppDelegate.h file, we have added UITabBarController, FirstTableViewController, ThirdTableViewController. So make the following changes in the file:

#import 
@class FirstTableViewController;

@class ThirdTableViewController;
@interface TabBarController_WindowbaseAppDelegate : NSObject  {

    UIWindow *window;

        UITabBarController *rootViewController;

        FirstTableViewController *firstTableViewController;

        ThirdTableViewController *thirdTableViewController;

}
@property (nonatomic, retain) IBOutlet UIWindow *window;

@property (nonatomic, retain) IBOutlet UITabBarController *rootViewController;

@property (nonatomic, retain) IBOutlet FirstTableViewController *firstTableViewController;

@property (nonatomic, retain) IBOutlet ThirdTableViewController *thirdTableViewController;

Step 6: Double click the MainWindow.xib file and open it to the Interface Builder. First drag the TabBarController from the library and place it to the MainWindow. Double click the TabBarController from the MainWindow and open it. Now drag the TabBar Item from the library and place it to the TabBarController window. Select the ViewController from the TabBar Controller and bring up Identity Inspector and change the class name into FirstTableViewController, and bring up Attribute Inspector, load the FirstTableViewController NIB file. Select the Next ViewController from the TabBar Controller, and bring up Identity Inspector change the class name into SecondViewController, after doing that bring up Attributes Inspector and load the SecondViewController NIB file. Select another ViewController from the Tab Bar Controller and bring up Identity Inspector and change the class name into ThirdTableViewController , after doing that bring up Attributes Inspector and load the ThirdTableViewController NIB file. Now drag Tab Bar Controller Windowbase App Delegate icon to the Tab Bar Controller icon and select rootViewController. Now save the MainWindow.xib file, close it and go back to the Xcode.

Step 7: Open the AppDelegate.m file and make the following changes in the file:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

        [window addSubview:rootViewController.view];

    [window makeKeyAndVisible];

        return YES;

}

Step 8: In the FirstTableViewController.h file, we have added UITableView and NSMutableArray. So make the following changes in the file:

#import 
#import "FirstTableViewController.h"
#import "ThirdTableViewController.h"

@interface FirstTableViewController : UITableViewController 

{
        
        IBOutlet UITableView *firstTableView;

        NSMutableArray *firstScreen;

}

@property (nonatomic, retain) NSMutableArray *firstScreen;

Step 9: Double click the FirstTableViewController.xib file and open it to the Interface Builder.First drag the TableView from the library and place it to the view window. Select the TableView from the view window and bring up Connection Inspector, connect dataSource to the File Owner icon and delegate to the File Owner icon. Connect File’s Owner icon to the Table view and select firstTableView. Select the File’s Owner icon from the mainwindow and bring up Connection Inspector and connect view to the Table View. You have done all the connection, now save the FirstTableViewController.xib file,close it and go back to the Xcode.

Step 10: Open the FirstTableViewController.m file and make the following changes in the file:

-(void)viewDidLoad {
[super viewDidLoad];

NSMutableArray*array =[[NSArray alloc] initWithObjects:@"Select Item2", @"Select Item3", nil];

        self.firstScreen = array;
[array release];

}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return 1;

}

// Customize the number of rows in the table view.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 

{

        return [self.firstScreen 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:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    }

    // Set up the cell…

        NSUInteger row = [indexPath row];

        cell.textLabel.text = [firstScreen objectAtIndex:row];

    return cell;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

        if ([[firstScreen objectAtIndex:indexPath.row] isEqual:@"Select Item2"])

        {

                self.tabBarController.selectedIndex = 1;

        }       

        if ([[firstScreen objectAtIndex:indexPath.row] isEqual:@"Select Item3"])

        {

                self.tabBarController.selectedIndex = 2;

        }

}

Step 11:Double click the SecondViewController.xib file and open it to the Interface Builder. Select the view window and bring up Attribute Inspector,and change the background color. Connect File’s Owner icon to the View icon and select view.

Step 12: In the ThirdTableViewController.h file, we have added UITableView, and NSMutableArray. So make the following changes in the file:

#import 
@interface ThirdTableViewController : UIViewController {
        IBOutlet UITableView *thirdTableView;

        NSMutableArray *thirdScreenList;

}

@property (nonatomic, retain) NSMutableArray *thirdScreenList;

Step 13: Double click the ThirdTableViewController.xib file and open it to the Interface Builder. First drag the TableView from the library and place it to the view window. Select the TableView from the view window and bring up Connection Inspector, connect dataSource to the File Owner icon and delegate to the File Owner icon. Connect File’s Owner icon to the Table view and select thirdTableView. Select the File’s Owner icon from the mainwindow and bring up Connection Inspector and connect view to the Table View. You have done all the connection, now save the ThirdTableViewController.xib file,close it and go back to the Xcode.

Step 14: Open the ThirdTableViewController.m file and make the following changes in the file:

-(void)viewDidLoad {
[super viewDidLoad];
NSString*myfile =[[NSBundle mainBundle]

                                                pathForResource:@"ThirdpList"ofType:@"plist"];

NSMutableArray*array =[[NSArray alloc] initWithContentsOfFile:myfile];

        self.thirdScreenList = array;
[array release];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

    return 1;

}

// Customize the number of rows in the table view.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

    return [self.thirdScreenList 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:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    }

    // Set up the cell…

        NSUInteger row = [indexPath row];

        cell.textLabel.text = [thirdScreenList objectAtIndex:row];

    return cell;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    }

Step 15: Double click the MainWindow.xib file and open it to the Interface Builder. Connect the Tab bar Controller Windowbase App Delegate to the FirstTableViewController and select firstTableView. Do the same thing for the ThirdTableViewController and select secondTableView. Now save the MainWindow.xib file, close it and go back to the Xcode.

Step 16: Now compile and run the application in the Simulator.

You can Download SourceCode from here TabBarController_Windowbase

How to Draw Rectangle In Window Base Application

Sushant — Mon, 21 Jun 2010 07:49:50 +0000

This is the Simple Example. In this example we will see how to draw rectangle in the window base application.

Step 1: Create a Window base application using template. Give the application name “RectDraw”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the directory structure to check out the content of the directory.

Step 3: Open the RectDrawAppDelegate.m file and make the following changes in the file:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

   window.backgroundColor = [UIColor blackColor];

        CGRect redFrame = CGRectMake(20, 20, 100, 100);

        UIView *redView = [[UIView alloc] initWithFrame:redFrame];

        redView.backgroundColor = [UIColor redColor];

        [window addSubview:redView];

        [redView release];

        CGRect yellowFrame = CGRectMake(120, 120, 100, 100);

        UIView *yellowView = [[UIView alloc] initWithFrame:yellowFrame];

        yellowView.backgroundColor = [UIColor yellowColor];

        [window addSubview:yellowView];

        [yellowView release];

        CGRect blueFrame = CGRectMake(220, 220, 100, 100);

        UIView *blueView = [[UIView alloc] initWithFrame:blueFrame];

        blueView.backgroundColor = [UIColor blueColor];

        [window addSubview:blueView];

        [blueView release];

        [window makeKeyAndVisible];

        return YES;

}

Step 4: Now compile and run the application in the Simulator.

You can Download SourceCode from here RectDraw

iPhone Cash! – Learn iPhone Development and Make Tons!

vishy — Thu, 04 Jun 2009 09:06:17 +0000

There is a lot of buzz about some independent developers and newbies who have made between $100,000 to $500,000 by simply creating their first iPhone application and putting it up for sale on the online Apple Store.

Steve Demeter made a simple puzzle game called Trism, and in 2 months he earned $250,000. Last December the app called iFart became the number one app on the App Store. It stayed on the top and raked in $9200 each day in profit after Apple’s cut. Then, Ethan Nicholas, developer of the now famous iShoot game, earns $21,000 per day selling his iPhone app. Ethan quit his day job to work full time on the iPhone and he did not even know how to write Objective-C code before he made iShoot.

These are just some of the stories that are causing a lot of buzz, and people have quit their day jobs to cash in on the opportunity.

However, developing for the iPhone is relatively a new field with a shortage of well structured tutorials and one-on-one mentorship and help. EDUmobile.ORG has been involved with online training in the wireless technology programming field and has launched its iPhone Online Course to meet the shortage of information resources and training.

The course is offered on a once a week basis via Online Video, PDF Documents, One-on-One sessions and Weekly Worksheets. There is also an option to access a remote Mac, for those who do not have access to one.

The iPhone course offered at EDUmobile.ORG is crafted to suite the industry need for beginner and intermediate level developers. After the course completion, developers will be able to create software for iPhone and can optionally distribute their content through EDUmobile.ORG on the online App Store, and immediately start earning. One can also bid to win the large number of growing projects being posted daily on project bidding sites like Elance and RentACoder.