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 .
At last, someone comes up with the "right" anwser!
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