Mouse, Keyboard, and Trackpad
Handle events related to mouse, keyboard, and trackpad input.
NSResponder class defines the responder chain, an ordered list of objects that respond to user events. When the user clicks the mouse button, taps on the trackpad, or presses a key, an event is generated and passed up the responder chain in search of an object that can respond to it. Any object that handles events must inherit from the
NSResponder class. The core AppKit classes,
NSView, inherit from
NSApplication object maintains a list of
NSWindow objects—one for each window belonging to the app—and each
NSWindow object maintains a hierarchy of
NSView objects. This view hierarchy is used for both drawing the user interface and for handling events.
NSWindow object handles window-level events and distributes other events to its views. An
NSWindow object also has a delegate allowing you to customize its behavior.
An abstract class that forms the basis of event and command processing in AppKit.
Mouse, Keyboard, and Touch Events
An object that contains information about an input action, such as a mouse click or a key press.
A snapshot of a particular touch at an instant in time.
An encapsulation of the behavior and progression of a Force Touch trackpad as it responds to specific events.
An object that provides access to the haptic feedback management attributes on a system with a Force Touch trackpad.
Constants that you use to filter out specific event types from the stream of incoming events.
Constants that represent the possible phases during an event phase.
Menus, Cursors, and the Dock
Implement menus and cursors to facilitate interactions with your app, and use your app's Dock tile to convey updated information.
Encapsulate your app's event-handling logic in gesture recognizers so that you can reuse that code throughout your app.
Display interactive content and controls in the Touch Bar.
Drag and Drop
Support the direct manipulation of your app's content using drag and drop.
Make your app more accessible to users with disabilities.