Application for the configuration and adaptation of the Android operating system for the visually impaired

Mobile devices can be used as assistive technologies as they help improve the quality of life of people with visual impairments (PVI). Despite the advantages of mobile devices, it is necessary to overcome some challenges regarding the difficulties of interacting of these users with the operating system of these devices. This is important for the use of this technology to reach a greater number of the visually impaired. Therefore, this study aimed to perform an interface design and the development of an application. It automatically adapts the Android® operating system according to the accessibility preferences of the visually impaired through voice commands. These preferences were validated in previous studies. With the help of computational tools and tests with PVI, it was possible to create the prototype of the application interface and to know the improvements to be made. The developed application showed potential to be a useful tool for the visually impaired, also bringing specific benefits of using the voice command to partially impaired people.