Customization of mobile applications using web-based technology

1. A method comprising:

sending, to a first computing device from a second computing device, a first request for a view of a user interface of a native application executing on the second computing device, wherein the view includes one or more first user-interface components, and wherein the native application is an application installed locally on the second computing device;

receiving, by the second computing device from the first computing device, code implementing a structured document that represents the view, wherein the structured document comprises the one or more first user-interface components as selected by the first computing device and one or more second user-interface components selected by the first computing device based on a user agent type of the second computing device, the second user-interface components associated with a native feature of the second computing device, the native feature comprising a hardware component of the second computing device;

receiving, by the second computing device, a first user input through the one or more first user-interface components and a second user input through the one or more second user-interface components;

sending, by the second computing device in response to the first user input, a second request to the first computing device without invoking utilization of the native feature, the second request comprising an application programming interface call to the first computing device; and

invoking, by the second computing device in response to the second user input, utilization of the native feature.

2. The method of claim 1 , further comprising:

loading, by the second computing device, the code in a web browser executing on the second computing device and within a context of the native application to render and display the structured document.

3. The method of claim 2 , further comprising:

determining, by the second computing device, whether processing the first user input does not require the native feature; and

determining, by the second computing device, whether processing the second user input requires the native feature.

4. The method of claim 3 , wherein:

processing the first user input does not require the native feature; and

processing the second user input requires the native feature.

5. The method of claim 1 , wherein:

each second user-interface component is associated with a customized uniform resource locator (URL) referring to the native feature.

6. The method of claim 1 , wherein the code is in Hypertext Markup Language (HTML).

7. One or more computer-readable non-transitory storage media embodying software that is operable when executed to:

send, to a first computing device from a second computing device, a first request for a view of a user interface of a native application executing on the second computing device, wherein the view includes one or more first user-interface components, and wherein the native application is an application installed locally on the second computing device;

receiving, by the second computing device from the first computing device, code implementing a structured document that represents the view, wherein the structured document comprises the one or more first user-interface components as selected by the first computing device and one or more second user-interface components selected by the first computing device based on a user agent type of the second computing device, the second user-interface components associated with a native feature of the second computing device, the native feature comprising a hardware component of the second computing device;

receive, by the second computing device, a first user input through the one or more first user-interface components and a second user input through the one or more second user-interface components;

send, by the second computing device in response to the first user input, a second request to the first computing device without invoking utilization of the native feature, the second request comprising an application programming interface call to the first computing device; and

invoke, by the second computing device in response to the second user input, utilization of the native feature.

8. The media of claim 7 , wherein the software is further operable when executed to:

load, by the second computing device, the code in a web browser executing on the second computing device and within a context of the native application to render and display the structured document.

9. The media of claim 8 , wherein the software is further operable when executed to:

determine, by the second computing device, whether processing the first user input does not require the native feature; and

determine, by the second computing device, whether processing the second user input requires the native feature.

10. The media of claim 9 , wherein:

processing the first user input does not require the native feature; and

processing the second user input requires the native feature.

11. The media of claim 7 , wherein:

each second user-interface component is associated with a customized uniform resource locator (URL) referring to the native feature.

12. The media of claim 7 , wherein the code is in Hypertext Markup Language (HTML).

13. A system comprising:

one or more non-transitory computer-readable storage media embodying instructions;

one or more processors coupled to the media and operable to execute the instructions to:

send, to a first computing device from a second computing device, a first request for a view of a user interface of a native application executing on the second computing device, wherein the view includes one or more first user-interface components, and wherein the native application is an application installed locally on the second computing device;

receiving, by the second computing device from the first computing device, code implementing a structured document that represents the view, wherein the structured document comprises the one or more first user-interface components as selected by the first computing device and one or more second user-interface components selected by the first computing device based on a user agent type of the second computing device, the second user-interface components associated with a native feature of the second computing device, the native feature comprising a hardware component of the second computing device;

receive, by the second computing device, a first user input through the one or more first user-interface components and a second user input through the one or more second user-interface components;

send, by the second computing device in response to the first user input, a second request to the first computing device without invoking utilization of the native feature, the second request comprising an application programming interface call to the first computing device; and

invoke, by the second computing device in response to the second user input, utilization of the native feature.

14. The system of claim 13 , wherein the processors are further operable to execute the instructions to:

load, by the second computing device, the code in a web browser executing on the second computing device and within a context of the native application to render and display the structured document.

15. The system of claim 14 , wherein the processors are further operable to execute the instructions to:

determine, by the second computing device, whether processing the first user input does not require the native feature; and

determine, by the second computing device, whether processing the second user input requires the native feature.

16. The system of claim 15 , wherein:

processing the first user input does not require the native feature; and

processing the second user input requires the native feature.

17. The system of claim 13 , wherein:

each second user-interface component is associated with a customized uniform resource locator (URL) referring to the native feature.

18. The system of claim 13 , wherein the code is in Hypertext Markup Language (HTML).