Calling a method inside a delegate - zbar-sdk

Question

I am using zBar SDK once a qr code detected a delegate will run, inside this delegate I defined a myView and used it as a overlay on the camera with information about that qr code.
inside the myView there is a button which calls a method (testAction) but inside this method I cannot acces any of objects which I'd defined in the delegate, how can I access to to myView and objects inside that inside testAction?
- (void) imagePickerController: (UIImagePickerController*) reader
didFinishPickingMediaWithInfo: (NSDictionary*) info
{
UIView *myView;
CGRect frame= CGRectMake(0, 0, 320, 428);
myView=[[UIView alloc] initWithFrame:frame];
myView.backgroundColor=[UIColor greenColor];
myView.alpha=0.7;
CGRect labelFrame = CGRectMake( 0, 0, 500, 30 );
UILabel* myLabel = [[UILabel alloc] initWithFrame: labelFrame];
[myLabel setTextColor: [UIColor orangeColor]];
NSString *combined = [NSString stringWithFormat:#"%#%#", #"Title: ", symbol.data];
myLabel.text=combined;
UIButton * myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
myButton.frame = CGRectMake(10, 50, 100, 50);
myButton.tag = 121;
[myButton setTitle:#"Do Something" forState:UIControlStateNormal];
[myButton setBackgroundImage:nil forState:UIControlStateNormal];
[myButton addTarget:self action:#selector(testAction:) forControlEvents:UIControlEventTouchUpInside];
//[button setBackgroundColor:red];
[myView addSubview: myLabel];
[myView addSubview: myButton];
reader.cameraOverlayView=myView;
}
- (void)testAction: (id)sender{
//my issue is here
}

Answer 1

Make them properties.
In your interface have:
#property (strong, nonatomic) UIView *myView;
#property (strong, nonatomic) UILabel *myLabel;
#property (strong, nonatomic) UIButton *myButton;
In your delegate method:
CGRect frame= CGRectMake(0, 0, 320, 428);
self.myView=[[UIView alloc] initWithFrame:frame];
self.myView.backgroundColor=[UIColor greenColor];
self.myView.alpha=0.7;
CGRect labelFrame = CGRectMake( 0, 0, 500, 30 );
self.myLabel = [[UILabel alloc] initWithFrame: labelFrame];
self.myLabel.textColor = [UIColor orangeColor];
self.myLabel.text = [NSString stringWithFormat:#"%#%#", #"Title: ", symbol.data];
self.myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
self.myButton.frame = CGRectMake(10, 50, 100, 50);
self.myButton.tag = 121;
[self.myButton setTitle:#"Do Something" forState:UIControlStateNormal];
[self.myButton setBackgroundImage:nil forState:UIControlStateNormal];
[self.myButton addTarget:self action:#selector(testAction:) forControlEvents:UIControlEventTouchUpInside];
[self.myView addSubview:self.myLabel];
[self.myView addSubview:self.myButton];
reader.cameraOverlayView = self.myView;
Finally in your action:
- (void)testAction: (id)sender
{
// self.myView, self.myLabel and self.myButton are all available.
}