#P6 Location and Map Application

Description

Develop Map application to display map location based on the specified location.

Screens

Project Creation

• Create new Xcode project and select “Single View project” template under iOS->Application

• Add CoreLocation and MapKit Frameworks, which are necessary to handle Core location and Map functionalities.

• Open ViewController.xib file and add MapView UI object from the object library. Connect mapView object with the File Owner. The mapView is defined in the ViewController.h interface

Do method implementation

1) ViewController.h

#import <UIKit/UIKit.h>

#import <CoreLocation/CoreLocation.h>

#import <MapKit/MapKit.h>

@interface ViewController : UIViewController <CLLocationManagerDelegate> {

    CLLocationManager *locationManager;

    IBOutlet MKMapView *mapView;

}

@property (nonatomic, retain) CLLocationManager *locationManager;

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

@end

2) ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

@synthesize locationManager, mapView;

- (void)viewDidLoad

{

    [super viewDidLoad];

      locationManager = [[CLLocationManager alloc] init];

   

    if ([CLLocationManager locationServicesEnabled]) {

        locationManager.delegate = self;

        [locationManager startUpdatingLocation];

    } else {

        NSLog(@"Location Service exception...");

    }

}

- (void)locationManager:(CLLocationManager *)manager

    didUpdateToLocation:(CLLocation *)newLocation

           fromLocation:(CLLocation *)oldLocation {

   

    NSLog(@"latitude=%f, longitude=%f",

          [newLocation coordinate].latitude,

          [newLocation coordinate].longitude);

   

    MKCoordinateRegion region = MKCoordinateRegionMake([newLocation coordinate], MKCoordinateSpanMake(.2, .2));

    [mapView setCenterCoordinate:[newLocation coordinate]];

    [mapView setRegion:region];

}

- (void)locationManager:(CLLocationManager *)manager

       didFailWithError:(NSError *)error{

    NSLog(@"Error");

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (void)dealloc {

    [locationManager release];

    [super dealloc];

}

@end

Testing

• Send test location details using Simulator
  

#P5 Music Player Application

Description

Develop Sitar music player application which can run on iOS platform. The application will run sitar music when user click on the sitar image.

Screens

Project Creation

• Create new Xcode project and select “Single View project” template under iOS->Application

• Add AVFoundation Framework

• Open ViewController.xib file by double clicking it and add button and set its method name and image

Do method implementation
ViewController.h

#import <UIKit/UIKit.h>

#import <AVFoundation/AVFoundation.h>

@interface ViewController : UIViewController <AVAudioPlayerDelegate> {

    AVAudioPlayer *player;

}

@property (nonatomic, retain) AVAudioPlayer *player;

-(IBAction)playToggele;

@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

Boolean playing = NO;

@implementation ViewController

@synthesize player;

-(void)playToggele{

   

    if (playing==NO) {

        AVAudioSession *audioSession = [AVAudioSession sharedInstance];

        [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];

       

        NSBundle *bundle = [NSBundle mainBundle];

        NSString *path = [bundle pathForResource:@"sitar" ofType:@"mp3"];

       

        NSURL *url = [NSURL fileURLWithPath:path];

       

        player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:NULL];

        [player prepareToPlay];

       

        player.delegate=self;

        [player play];

       

        playing=YES;

    } else if(playing==YES){

        [player pause];

       

        playing=NO;

    }

}

- (void)viewDidLoad

{

    [super viewDidLoad];

      // Do any additional setup after loading the view, typically from a nib.

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (void)dealloc {

    [player release];

    [super dealloc];

    }

@end

#P4 Touch Me Application

Description

Develop Touch based application which can run on iOS platform. The application will display different images based on the touch event.

For every touch to iOS device screen will generate UIEvent object, this object contains UITouch objects with details of associated fingers.  

Screens

Project Structure

Project Creation

Create new Xcode project and select “Single View project” template under iOS->Application

Do method implementation : ViewController.m
(No changes to ViewController.h)

#import "ViewController.h"

@implementation ViewController

//Below touch Merhods are pre-defined in UIResponder 

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

      NSLog(@"Called TouchesBegan");

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

      CGRect myImageRect = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);

      UIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect];

      [myImage setImage:image];

      myImage.opaque = YES; // explicitly opaque for performance

      [self.view addSubview:myImage];

     

      // get touch event

      UITouch *touch = [[event allTouches] anyObject];

      CGPoint touchLocation = [touch locationInView:touch.view];

      myImage.center = touchLocation;

    [myImage release];

}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

{

      NSLog(@"Called TouchesMoved");

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

      CGRect myImageRect = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);

      UIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect];

      [myImage setImage:image];

      myImage.opaque = YES; // explicitly opaque for performance

      [self.view addSubview:myImage];

     

      // get touch event

      UITouch *touch = [[event allTouches] anyObject];

      CGPoint touchLocation = [touch locationInView:touch.view];

      myImage.center = touchLocation;

      [myImage release];

}

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

{

      NSLog(@"Touches Ended");

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

      CGRect myImageRect = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);

      UIImageView *myImage = [[UIImageView alloc] initWithFrame:myImageRect];

      [myImage setImage:image];

      myImage.opaque = YES; // explicitly opaque for performance

      [self.view addSubview:myImage];

     

      // get touch event

      UITouch *touch = [[event allTouches] anyObject];

      CGPoint touchLocation = [touch locationInView:touch.view];

      myImage.center = touchLocation;

      [myImage release];

}

//ORGINAL METHODS

- (void)viewDidLoad

{

    [super viewDidLoad];

      // Do any additional setup after loading the view, typically from a nib.

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end