User Input Type / Key for Android Keyboard

Question

I am studying the changes to the bit chunks of Android input methods to enter coordinates.

The required keys / symbols are 1234567890.-: When choosing a numerical sign and decimal number, I have the first 12 covered, but I can’t get it: to be on or any other character that can take its place (it would be ideal to have the ° key).

Now I have written an input filter that filters these characters: it works, but it is not very. The main problem I am having is that I cannot make the keyboard open on the numbers side, not the letters side.

Another option that I am very interested in is to modify the existing phone keypad to enable my desired keys. This will remove a lot of interference and make the rest of the keys larger, which will facilitate input.

Answer 1

Do you mean writing your own custom keyboard? If so, you can refer to this: How to develop a soft keyboard for Android?