Working on a project for visually disabled, NEED HELP with android coding!

i'm making an app on android smart phones for the visually impaired and i have inquiries. Now, my app's main menu is already created, and i've used text-to-speech program to read out the menu for the visually impaired. QN: what do i have to do to make it so that when visually impaird personnal press the buttons on the menu once, text to speech is activated, 开发者_如何学Pythontelling them what they are pressing, and to double tap to enter/activate the activity linked to the button? Thanks in advance :D

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Check out these resources that may help:

• Designing for Accessibility
• Google I/O 2011: Leveraging Android Accessibility APIs To Create An Accessible Experience

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You will need to use GestureDetector for a double tap / double click solution.

See answers here for some solutions: Android: How to detect double-tap?