3.8 KiB
Accessibility
Introduction
The accessibility framework provides a standard mechanism for exchanging information between applications and accessibility applications and supports the development of accessibility applications to enhance the accessibility experience. The typical use cases are as follows:
- Allow people with disabilities to use applications. For example, provide the screen reader for people with visual impairments.
- Provide the capability to interact with applications. For example, offer the UI automatic test framework and the capability to develop accessibility applications based on UI responses.
Architecture
Application Layer：
- Use Accessibility-Extension-Ability to develop applications with accessible capabilities.
- General applications are integrated into accessible target applications from ACE, and use accessible capabilities.
- The system settings application allows you to turn on/off for accessible capabilities.
Application Framework Layer：
-
AAkit： Accessible Ability development kit, which supports Native and TS language development, is used to build an accessible ability execution environment.
-
ASACkit：Accessibility System Ability Client development kit, which supports Native and TS language development, provides the ability to use accessible capabilities for applications.
-
ACkit：Accessibility Configuration development kit, which supports Native and TS language development and provides the ability to set accessible capability switches for system applications.
System Service Layer：
- AccessibilityService： Service is management of accessible-ability connections, and the server connected by the accessibility client (ASAKit), and connects other system layer services to provide accessibility input capability.
Directory Structure
/foundation/barrierfree/accessibility
├── common
│ ├── interface # Accessibility-service interface
│ └── log # Hilog adaption
├── figures # Figures of README
├── frameworks
│ ├── aafwk # AccessibleAbility-Kit implementation code
│ ├── acfwk # AccessibilityConfiguration-Kit implementation code
│ ├── asacfwk # AccessibleAbilityClient-Kit implementation code
│ └── common # Common data-types and constants
├── interfaces
│ ├── innerkits # Internal C/C++ APIs of Accessibility
│ └── kits # Developer TS APIs of Accessibility
│ ├── js # TS APIs
│ └── napi # Implementation of TS APIs
├── resources # Resource files of accessibility
├── sa_profile # SA-Configuration files of accessibility
└── services
├── aams # Accessibility-service code
├── etc # Configuration files of accessibility-service
└── test # Test-code of accessibility-service
Usage
1. accessibility configuration
Repositories Involved
accessibility