How to load new view in the same window on button click? - objective-c

Question

I've got the View-Controller with a button. I want the new view to be loaded over my View-Controller when the button is pressed. It'd not replace the existing view, I want it to be smaller than the screen and hide when I tap out of the small view.
How should it be implemented in code?

Answer 1

- (IBAction)button:(id)sender
{
UIView *view2=[[UIView alloc]initWithFrame:CGRectMake(0,0,200,200)];
[self.view addSubview:view2];
UITapGestureRecognizer *Tap = [[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(Tapview)] autorelease];
[view2 addGestureRecognizer:Tap];
}
-(void)Tapview
{
[view2 removeFromSuperview];
}

Answer 2

Add Tap Gesture to self.view like this:
UITapGestureRecognizer *oneFinger =
[[[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(oneFingerAction:)] autorelease];
// Set required taps and number of touches
[oneFinger setNumberOfTapsRequired:1];
[oneFinger setNumberOfTouchesRequired:1];
// Add the gesture to the view
[[self view] addGestureRecognizer:oneFinger];
Add one BOOL flag in .h file; in ViewDidLoad method add this:
flag = FALSE;
Now I assume u have UIView *smallView which be added on screen like this:
[self.view addSubView:smallView];
flag = TRUE;
smallView.center = self.view.centre;
Now when tapped on self.view tap gesture action called
- (void)oneFingerAction:(UITapGestureRecognizer*)sender
{
if(sender.view == self.view)
{
if(flag){
if(smallView)
{
[smallView removeFromSuperView];
}
}
}
}