KGModal is an easy drop in control that allows you to display any view in a modal popup. The modal will automatically scale to fit the content view and center it on screen with nice animations!

You supply your own content view and KGModal does the rest:

[[KGModal sharedInstance] showWithContentView:contentView andAnimated:YES];

There are a couple other options but it's purposely designed to be simple and easy to use:

// Determines if the modal should dismiss if the user taps outside of the modal view
// Defaults to YES
@property (nonatomic) BOOL tapOutsideToDismiss;

// Determins if the close button or tapping outside the modal should animate the dismissal
// Defaults to YES
@property (nonatomic) BOOL animateWhenDismissed;

// Determins if the close button is shown
// Defaults to YES
@property (nonatomic) BOOL showCloseButton;

// The background color of the modal window
// Defaults black with 0.5 opacity
@property (strong, nonatomic) UIColor *modalBackgroundColor;

// The background display style, can be a transparent radial gradient or a transparent black
// Defaults to gradient, this looks better but takes a bit more time to display on the retina iPad
@property (nonatomic) enum KGModalBackgroundDisplayStyle backgroundDisplayStyle;

// The shared instance of the modal
+ (id)sharedInstance;

// Set the content view to display in the modal and display with animations
- (void)showWithContentView:(UIView *)contentView;

// Set the content view to display in the modal and whether the modal should animate in
- (void)showWithContentView:(UIView *)contentView andAnimated:(BOOL)animated;

// Hide the modal with animations
- (void)hide;

// Hide the modal with animations,
// run the completion after the modal is hidden
- (void)hideWithCompletionBlock:(void(^)())completion;

// Hide the modal and whether the modal should animate away
- (void)hideAnimated:(BOOL)animated;

// Hide the modal and whether the modal should animate away,
// run the completion after the modal is hidden
- (void)hideAnimated:(BOOL)animated withCompletionBlock:(void(^)())completion;

Check out the ExampleApp to see it in action!