image move in IPhone

In this tutorial we will see the app is how the image move in view. This is the view based app.Here are some steps for it…

1. Open the xcode & choose "File->New Project".

2. Select "Application" from left menu and then "View-based Application".

3.Name your project as "imagemov" and save the project.

4.Now just select "imagemovViewController.h" file from left menu for define a      UIImageView . Set the property for UIImageView.

#import <UIKit/UIKit.h>

@interface imagemovViewController : UIViewController {

UIImageView *imageOne;

UIImageView *imageTwo;

}

@property(nonatomic,retain)UIImageView *imageOne;

@property(nonatomic,retain)UIImageView *imageTwo;

@end

5. Now select "imagemovViewController.m" file from menu for implementation.

#import "imagemovViewController.h"

@implementation imagemovViewController

@synthesize imageOne,imageTwo;

- (void)viewDidLoad {

    [super viewDidLoad];

UIImage *imgone=[UIImage imageNamed:@"Mystery.jpg"];

imageOne=[[UIImageView alloc]initWithImage:imgone];

[imageOne setFrame:CGRectMake(110, 60, [imageOne frame].size.width,[imageOne frame].size.height)];

[self.view addSubview:imageOne];

[imageOne release];

UIImage *imgTwo=[UIImage imageNamed:@"Happy Face.gif"];

imageTwo=[[UIImageView alloc]initWithImage:imgTwo];

[imageTwo setFrame:CGRectMake(110, 200, [imageTwo frame].size.width,[imageTwo frame].size.height)];

[self.view addSubview:imageTwo];

[imageTwo release];

}

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

{

if ([touches count] == 1) {

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

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

float xDif = newTouch.x - lastTouch.x; 

float yDif = newTouch.y - lastTouch.y;

CGAffineTransform translate = CGAffineTransformMakeTranslation(xDif, yDif);

imageOne.transform= CGAffineTransformConcat(imageOne.transform, translate);

imageTwo.transform= CGAffineTransformConcat(imageTwo.transform, translate);

} 

}

- (void)dealloc {

    [super dealloc];

}

@end

6. Now double click on "imagemovViewController.xib" from Resource folder for open it.

7. On the view window drag the UIImageView from library . Then link the UIImageView  to the File's Owner. 

8. Then Quit and Save the Interface Builder.

9. Now you are ready for  click on "Build & Go" button. 

Now you can see the output in iphone simulator .