Showing or Hiding the Software Keyboard - Calsign/APDE GitHub Wiki

AKA "How do I show/hide the soft keyboard?"

Android mode includes built-in functionality for opening and closing the software keyboard. See the reference.

// To open the keyboard
openKeyboard();
// To close the keyboard
closeKeyboard();

Pre-Android Mode 4.0

Note: This approach is no longer necessary in new versions of APDE.

Showing and hiding the software keyboard requires using a little bit of native Android functionality.

First, you'll need an InputMethodManager:

android.view.inputmethod.InputMethodManager imm = (android.view.inputmethod.InputMethodManager) getActivity().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);

Then to show, hide, or toggle the soft keyboard, use the following three methods:

// Show
imm.showSoftInput(getActivity().getCurrentFocus(), 0);

//Hide
imm.hideSoftInputFromWindow(getActivity().getCurrentFocus().getWindowToken(), 0);

// Toggle
imm.toggleSoftInput(0, 0);

You can copy and paste the functions below into your sketch to abstract away this process:

void toggleSoftKeyboard() {
  android.view.inputmethod.InputMethodManager imm = (android.view.inputmethod.InputMethodManager) getActivity().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);
  imm.toggleSoftInput(0, 0);
}

void showSoftKeyboard() {
  android.view.inputmethod.InputMethodManager imm = (android.view.inputmethod.InputMethodManager) getActivity().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);
  imm.showSoftInput(getActivity().getCurrentFocus(), 0);
}

void hideSoftKeyboard() {
  android.view.inputmethod.InputMethodManager imm = (android.view.inputmethod.InputMethodManager) getActivity().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);
  imm.hideSoftInputFromWindow(getActivity().getCurrentFocus().getWindowToken(), 0);
}

Ketai

If you are using the Ketai library, then you may instead choose to use KetaiKeyboard for showing, hiding, and toggling the keyboard.