VectorEntry - A Text Entry Mechanism for visually impaired
Installation
Go to https://github.com/OrkoHunter/VectorEntry-Keyboard/releases and download the latest apk file. Install it in your android phone.
Usage
All the numbers and the characters are divided into 4x3 = 12 groups, based on the T-9 mobile keypad layout.
VectorEntry is a two-step procedure to input one character.
Step 1: Group Selection
| Alphabets | Group | Flick direction/type |
|---|---|---|
| [, . ? ”] | Key 1 | bottom to left ( ↖ ) |
| [a b c] | Key 2 | up ( ↑ ) |
| [d e f] | Key 3 | bottom to right ( ↗ ) |
| [g h i] | Key 4 | left ( ← ) |
| [j k l] | Key 5 | double tap |
| [m n o] | Key 6 | right ( → ) |
| [p q r s] | Key 7 | top to left ( ↙ ) |
| [t u v] | Key 8 | down ( ↓ ) |
| [w x y z] | Key 9 | top to right ( ↘ ) |
| Space | NA | right ( → ) and down ( ↓ ) |
| Backspace | NA | left ( ← ) and down ( ↓ ) |
| [: ; !] | Key @ | Two Finger Tap and Left |
| [+ - / *] | Key 0 | Two Finger Tap and Up |
| ['Quit'] | Key # | Two Finger Tap and Right |
Select the group by the gesture associated with it. If you want to enter a number, select the group of that Key.
Step 2: Select a character from the group
The next gesture determines which character to choose from the selected group. The directions have the following meaning (clockwise directions) -
Left flick - First
Top flick - Second
Right flick - Third
Bottom flick - Fourth
A group can have maximum 4 possible characters. For example, the group of Key 9 has (1) w, (2) x, (3) y and (4) z possibilities. To select y, we will do the bottom flick.
If no second move is made within five seconds, then the number of that key is inserted. For example, if a person does up flick and leaves for five seconds, the number 2 is entered.
Example
To select q, we first select the group of Key 7 by doing a bottom-left flick. We then do an up flick because q is the second character in the group.
