Gesture Recognizers with Delegates for Controlling and Modifying Gesture Recognition

• US 20110181526A1
• Filed: 05/28/2010
• Published: 07/28/2011
• Est. Priority Date: 01/26/2010
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Beaver, Jason Clay, Shaffer, Joshua H., Moore, Bradford Allen
• Granted Patent: US 9,684,521 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06F 9/451 Execution arrangements for user interfaces

Abstract

A software application includes a plurality of views and an application state. The method includes displaying one or more views, where a respective view includes a respective gesture recognizer having a corresponding delegate to the respective gesture recognizer. The method includes detecting one or more events and processing a respective event of the one or more events using the respective gesture recognizer. The processing of the respective event includes processing the respective event at the respective gesture recognizer in accordance with a respective gesture definition corresponding to the respective gesture recognizer, executing the corresponding delegate to determine one or more values, and conditionally sending information corresponding to the respective event to the software application in accordance with the one or more values determined by the delegate. The method includes executing the software application in accordance with information, received from the respective gesture recognizer.

Claims

1. A method, comprising:

at an electronic device having a touch-sensitive surface and configured to execute a software application that includes a plurality of views and an application state of the software application;

displaying one or more views of the plurality of views, wherein a respective view of the one or more displayed views includes one or more respective gesture recognizers, a respective gesture recognizer having a corresponding delegate;

detecting one or more touches, on the touch-sensitive surface, having a touch position that falls within one or more of the displayed views;

processing a respective touch of the one or more touches, including;

executing the delegate corresponding to the respective gesture recognizer to obtain a receive touch value in accordance with the application state;

when the receive touch value meets predefined criteria, processing the respective touch at the respective gesture recognizer; and

conditionally sending information corresponding to the respective touch to the software application; and

executing the software application in accordance with information, received from the respective gesture recognizer, corresponding to the respective touch.

2. The method of claim 1,

wherein the plurality of views include a plurality of gesture recognizers;

the method including assigning distinct delegates to at least a subset of the plurality of gesture recognizers; and

wherein processing the respective touch of the one or more touches includes;

identifying a set of candidate gesture recognizers of the plurality of gesture recognizers;

for each candidate gesture recognizer having an assigned delegate, executing the assigned delegate to obtain a receive touch value in accordance with the application state;

identifying one or more receiving gesture recognizers, comprising a subset of the candidate gesture recognizers, in accordance with the obtained receive touch values; and

processing the respective touch at each gesture recognizer of the one or more of receiving gesture recognizers.

3. The method of claim 2, wherein processing the respective touch at each gesture recognizer of the one or more receiving gesture recognizers includes processing the respective touch at a respective receiving gesture recognizer to which a delegate has been assigned in accordance with a respective gesture definition corresponding to the respective gesture recognizer, executing the assigned delegate to determine one or more values in accordance with the application state, and conditionally sending information corresponding to the respective touch to the software application in accordance with an outcome of the processing of the respective touch by the respective gesture recognizer and in accordance with the one or more values determined by the assigned delegate;

and

the method includes executing the software application in accordance with information, received from one or more of the receiving gesture recognizers, corresponding to one or more of the touches.

4. The method of claim 3, wherein processing the respective touch at the respective receiving gesture recognizer includes, when the detected touch is consistent with the respective gesture definition, enabling a corresponding state transition in the respective gesture recognizer when the state transition is enabled by the assigned delegate.

5. The method of claim 3, wherein processing the respective touch at the respective receiving gesture recognizer includes, when the detected touch is consistent with the respective gesture definition, conditionally enabling a corresponding state transition in the respective gesture recognizer when the state transition is enabled by the assigned delegate.

6. The method of claim 3, wherein processing the respective touch at the respective receiving gesture recognizer includes simultaneously processing the gesture at a second gesture recognizer in accordance with one or more values determined by the delegate assigned to the second gesture recognizer.

7. The method of claim 3, wherein processing the respective touch at the respective receiving gesture recognizer includes simultaneously processing the gesture at a second gesture recognizer in accordance with one or more values determined by the delegate assigned to the respective gesture recognizer.

8. An electronic device, comprising:

a touch-sensitive surface;

one or more processors;

memory;

one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including a software application that includes a plurality of views and an application state of the software application, the software application including instructions for;

displaying one or more views of the plurality of views, wherein a respective view of the one or more displayed views includes one or more gesture recognizers, a respective gesture recognizer having a corresponding delegate;

detecting one or more touches, on the touch-sensitive surface, having a touch position that falls within one or more of the displayed views;

processing a respective touch of the one or more touches, including;

executing the delegate corresponding to the respective gesture recognizer to obtain a receive touch value in accordance with the application state;

when the receive touch value meets predefined criteria, processing the respective touch at the respective gesture recognizer; and

conditionally sending information corresponding to the respective touch to the software application; and

executing the software application in accordance with information, received from the respective gesture recognizer, corresponding to the respective touch.

9. A computer readable storage medium storing one or more programs for execution by one of more processors of an electronic device having a touch-sensitive surface, the one or more programs including a software application that includes a plurality of views and an application state of the software application, the software application including instructions for:

displaying one or more views of the plurality of views, wherein a respective view of the one or more displayed views includes one or more gesture recognizers, a respective gesture recognizer having a corresponding delegate;

processing a respective touch of one or more touches on by the touch-sensitive surface, including;

executing the delegate corresponding to the respective gesture recognizer to obtain a receive touch value in accordance with the application state;

when the receive touch value meets predefined criteria, processing the respective touch at the respective gesture recognizer; and

conditionally sending information corresponding to the respective touch to the software application; and

executing the software application in accordance with information, received from the respective gesture recognizer, corresponding to the respective touch.

10. A method, comprising:

at an electronic device having a touch-sensitive surface and configured to execute a software application;

displaying one or more views of the software application, wherein the one or more displayed views include a plurality of gesture recognizers, the plurality of gesture recognizers including;

at least one discrete gesture recognizer, the discrete gesture recognizer configured to send a single action message in response to a respective gesture; and

at least one continuous gesture recognizer, the continuous gesture recognizer configured to send action messages at successive recognized sub-events of a respective recognized gesture;

detecting one or more touches;

processing each of the touches using one or more of the gesture recognizers, the processing of a respective touch including;

processing the respective touch at a respective gesture recognizer in accordance with a respective gesture definition corresponding to the respective gesture recognizer, and conditionally sending one or more respective action messages to the software application in accordance with an outcome of the processing of the respective touch at the respective gesture recognizer; and

executing the software application in accordance with one or more action messages received from one or more of the gesture recognizers corresponding to one or more of the touches.

11. The method of claim 10, wherein each gesture recognizer has a set of gesture recognizer states.

12. The method of claim 11, wherein:

the discrete gesture recognizer has a first set of gesture recognizer states including;

a gesture possible state, corresponding to an initial state of the discrete gesture recognizer;

a gesture recognized state, corresponding to recognition of the respective gesture; and

a gesture failed state, corresponding to failure of the discrete gesture recognizer to recognize the one or more touches as the respective gesture; and

the continuous gesture recognizer has a second set of gesture recognizer states including;

a gesture possible state;

a gesture began state, corresponding to initial recognition of the respective gesture;

a gesture changed state, corresponding to a respective change in location of the respective touch;

a gesture ended state, corresponding to completion of the respective recognized gesture;

a gesture canceled state, corresponding to interruption of the recognition of the respective gesture; and

a gesture failed state, corresponding to failure of the continuous gesture recognizer to recognize the one or more touches as the respective gesture.

13. The method of claim 12, wherein the gesture recognized state and the gesture ended state have an identical gesture recognizer state value.

14. The method of claim 10, wherein the software application has an application state;

and conditionally sending the one or more respective action messages includes conditionally sending the one or more respective action messages further in accordance with the application state of the software application.

15. The method of claim 10, further comprising requesting additional information from the respective gesture recognizer, wherein executing the software application includes executing the software application further in accordance with the additional information.

16. The method of claim 15, wherein the additional information includes the number and locations of respective touches processed at the respective gesture recognizer.

17. The method of claim 10, wherein the at least one discrete gesture recognizer includes:

one or more of a tap gesture recognizer, and a swipe gesture recognizer; and

the at least one continuous gesture recognizer includes;

one or more of a long press gesture recognizer, a pinch gesture recognizer, a pan gesture recognizer, a rotate gesture recognizer, and a transform gesture recognizer.

18. The method of claim 10, wherein the at least one discrete gesture recognizer includes:

a tap gesture recognizer, and a swipe gesture recognizer; and

the at least one continuous gesture recognizer includes;

a long press gesture recognizer, a pinch gesture recognizer, a pan gesture recognizer, a rotate gesture recognizer, and a transform gesture recognizer.

19. An electronic device, comprising:

a touch-sensitive surface;

one or more processors;

memory;

one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including a software application, the software application including instructions for;

displaying one or more views of the software application, wherein the one or more displayed views include a plurality of gesture recognizers, the plurality of gesture recognizers including;

at least one discrete gesture recognizer, the discrete gesture recognizer configured to send a single action message in response to a respective gesture; and

at least one continuous gesture recognizer, the continuous gesture recognizer configured to send action messages at successive recognized sub-events of a respective recognized gesture;

detecting one or more touches;

processing each of the touches using one or more of the gesture recognizers, the processing of a respective touch including;

processing the respective touch at a respective gesture recognizer in accordance with a respective gesture definition corresponding to the respective gesture recognizer, and conditionally sending one or more respective action messages to the software application in accordance with an outcome of the processing of the respective touch at the respective gesture recognizer; and

executing the software application in accordance with one or more action messages received from one or more of the gesture recognizers corresponding to one or more of the touches.

20. A computer readable storage medium storing one or more programs for execution by one of more processors of an electronic device having a touch-sensitive surface, the one or more programs including a software application, the software application including instructions for:

displaying one or more views of the software application, wherein the one or more displayed views include a plurality of gesture recognizers, the plurality of gesture recognizers including;

at least one discrete gesture recognizer, the discrete gesture recognizer configured to send a single action message in response to a respective gesture; and

at least one continuous gesture recognizer, the continuous gesture recognizer configured to send action messages at successive recognized sub-events of a respective recognized gesture;

detecting one or more touches;

processing each of the touches using one or more of the gesture recognizers, the processing of a respective touch including;

processing the respective touch at a respective gesture recognizer in accordance with a respective gesture definition corresponding to the respective gesture recognizer, and conditionally sending one or more respective action messages to the software application in accordance with an outcome of the processing of the respective touch at the respective gesture recognizer; and

executing the software application in accordance with one or more action messages received from one or more of the gesture recognizers corresponding to one or more of the touches.