GKPeerPickerController Class Reference

Inherits from
NSObject
Conforms to
NSObject (NSObject)
Framework
/System/Library/Frameworks/GameKit.framework
Availability
Available in iOS 3.0 and later.
Companion guide
Game Center Programming Guide
Declared in
GKPeerPickerController.h

Overview

The GKPeerPickerController class provides a standard user interface to allow one iOS device to discover and connect to another. The result is a configured GKSession object connecting the two devices. To use a GKPeerPickerController object, your application creates the controller, adds a delegate, configures the allowed connection types, and then shows the peer picker. The delegate is called as the user makes selections within the peer picker interface.

In iOS 3.0, the peer picker can be configured to select between Bluetooth and Internet connections.

On iOS 3.0, your application should release the peer picker object after it dismisses the peer picker dialog. On iOS 3.1 or later, your application may release the peer picker after it is shown to the user. If you do this, the peer picker controller is automatically deallocated after the dialog is dismissed.

Tasks

Setting and Getting the Delegate

Displaying the Picker Dialog

Configuring Connectivity Options

Properties

connectionTypesMask

A mask that determines the types of connections a dialog presents to the user.

@property(nonatomic, assign) GKPeerPickerConnectionType connectionTypesMask
Discussion

Your application configures the connection types it allows before showing the peer picker. If your application allows more than one connection type, the peer picker offers the user a choice of which type of connection to use. The default value for the mask is GKPeerPickerConnectionTypeNearby.

Availability
  • Available in iOS 3.0 and later.
Declared In
GKPeerPickerController.h

delegate

The delegate of the peer picker controller.

@property(nonatomic, assign) id<GKPeerPickerControllerDelegate> delegate
Discussion

The delegate must adopt the GKPeerPickerControllerDelegate formal protocol.

Availability
  • Available in iOS 3.0 and later.
Declared In
GKPeerPickerController.h

visible

A Boolean value that indicates whether the picker dialog is visible. (read-only)

@property(readonly, getter=isVisible) BOOL visible
Availability
  • Available in iOS 3.0 and later.
Declared In
GKPeerPickerController.h

Instance Methods

dismiss

Hides the peer picker dialog.

- (void)dismiss
Discussion

The controller’s delegate is responsible for dismissing the peer picker when it is no longer needed.

On iOS 3.1 or later, the peer picker is retained when it is shown, and autoreleased when it is dismissed.

Availability
  • Available in iOS 3.0 and later.
Declared In
GKPeerPickerController.h

show

Displays the peer picker dialog to the user.

- (void)show
Discussion

On iOS 3.1 or later, the peer picker is retained when it is shown, and autoreleased when it is dismissed.

Availability
  • Available in iOS 3.0 and later.
Declared In
GKPeerPickerController.h

Constants

GKPeerPickerConnectionType

Network connections available to the peer picker dialog.

enum {
   GKPeerPickerConnectionTypeOnline = 1 << 0,
   GKPeerPickerConnectionTypeNearby = 1 << 1
};
typedef NSUInteger GKPeerPickerConnectionType;
Constants
GKPeerPickerConnectionTypeOnline

An Internet-based connection.

Available in iOS 3.0 and later.

Declared in GKPeerPickerController.h.

GKPeerPickerConnectionTypeNearby

A Bluetooth connection to a device.

Available in iOS 3.0 and later.

Declared in GKPeerPickerController.h.



© 2010 Apple Inc. All Rights Reserved. (Last updated: 2010-10-25)

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