Move an uiview when a button is moving - ios

Question

I'm writing a custom UIButton that can draggable around the screen. When I press this button, a uiview will bee added into superview. I've adding pan gesture for this view so it's can draggable too.
And now I wanna make both uiview and button can draggable at the same time. How can I do that?For example:
If I drag the uiview or the button to a point, the other will move too. You can see the picture below for more information.

Answer 1

I would encapsulate the button and the view in a parent transparent UIView. Add the pan gesture to it and move it around... both will then move.

Answer 2

I tried the sample code for your application.It works perfectly.When you drag button,the view also moves simultaneously.
First I created button and UIView.I hooked up that.
ViewController.h
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController
#property (strong, nonatomic) IBOutlet UIButton *btnDragg;
- (IBAction)actionDragg:(id)sender;
#property (strong, nonatomic) IBOutlet UIView *viewDrag;
#end
ViewController.m
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize btnDragg,viewDrag;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIPanGestureRecognizer *panRecognizer;
panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(wasDragged:)];
panRecognizer.cancelsTouchesInView = YES;
[btnDragg addGestureRecognizer:panRecognizer];
}
- (void)wasDragged:(UIPanGestureRecognizer *)recognizer
{
UIButton *button = (UIButton *)recognizer.view;
CGPoint translation = [recognizer translationInView:button];
CGPoint translationView = [recognizer translationInView:viewDrag];
button.center = CGPointMake(button.center.x + translation.x, button.center.y + translation.y);
viewDrag.center = CGPointMake(viewDrag.center.x + translationView.x, viewDrag.center.y + translationView.y);
[recognizer setTranslation:CGPointZero inView:button];
[recognizer setTranslation:CGPointZero inView:viewDrag];
}
Before I drag the button,it is in original position
Then When I drag the button,the view also moves with button.Now it changes the position after the I drag the button.