Device, method, and graphical user interface for providing navigation and search functionalities

A method comprising:

• at an electronic device that includes a touch-sensitive display:
• displaying, on the touch-sensitive display, a first page of a multi-page application launch interface that includes multiple pages of application icons for launching distinct applications, wherein the first page includes a first plurality of application icons;
• while displaying the first page of the multi-page application launch interface on the touch-sensitive display, detecting, on the touch-sensitive display, a first input that includes detecting a first contact and detecting movement of the first contact on the touch-sensitive display;
• and
• in response to detecting the first input on the touch-sensitive display, determining a response from at least three possible responses to the first input based on evaluating the first input against a plurality of criteria, including:
• in accordance with a determination that the first input includes movement of the first contact in a first direction starting from a first region of the touch-sensitive display that is away from a first edge of the touch-sensitive display, replacing display of the first page of the multi-page application launch interface with display of a second page of the multi-page application launch interface that includes a second plurality of application icons that are different from the first plurality of application icons;
• in accordance with a determination that the first input includes movement of the first contact in a second direction that is perpendicular to the first direction starting from the first region of the touch-sensitive display that is away from the first edge of the touch-sensitive display, replacing display of at least a portion of the first page of the multi-page application launch interface with display of a search interface that includes a search input field for inputting search terms;
• and
• in accordance with a determination that the first input includes movement of the first contact starting from the first edge of the touch-sensitive display and moving away from the first edge, displaying a multitasking user interface that includes a plurality of concurrently displayed representations of open applications.

An electronic device, comprising:

• a touch-sensitive display;
• one or more processors;
• memory;
• and
• one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
• displaying, on the touch-sensitive display, a first page of a multi-page application launch interface that includes multiple pages of application icons for launching distinct applications, wherein the first page includes a first plurality of application icons;
• while displaying the first page of the multi-page application launch interface on the touch-sensitive display, detecting, on the touch-sensitive display, a first input that includes detecting a first contact and detecting movement of the first contact on the touch-sensitive display;
• and
• in response to detecting the first input on the touch-sensitive display, determining a response from at least three possible responses to the first input based on evaluating the first input against a plurality of criteria, including:
• in accordance with a determination that the first input includes movement of the first contact in a first direction starting from a first region of the touch-sensitive display that is away from a first edge of the touch-sensitive display, replacing display of the first page of the multi-page application launch interface with display of a second page of the multi-page application launch interface that includes a second plurality of application icons that are different from the first plurality of application icons;
• in accordance with a determination that the first input includes movement of the first contact in a second direction that is perpendicular to the first direction starting from the first region of the touch-sensitive display that is away from the first edge of the touch-sensitive display, replacing display of at least a portion of the first page of the multi-page application launch interface with display of a search interface that includes a search input field for inputting search terms;
• and
• in accordance with a determination that the first input includes movement of the first contact starting from the first edge of the touch-sensitive display and moving away from the first edge, displaying a multitasking user interface that includes a plurality of concurrently displayed representations of open applications.