Button to display and/or hide keyboard

Question

A EditText numeric will receive input by external keyboard, so display the default keyboard, should be optional.

How do I make to:

By clicking on EditText to position the cursor, the keyboard does not open ?

Open/close the keyboard with a separate button ?

Answer 1

etNumerico.setInputType(InputType.TYPE_NULL);

Try the above to define that it will not call the virtual keyboard. And to show or hide the keyboard by a button like this:

//Mostrar e esconder
 private void funcaoTeclado() {
    View v = getActivity().getCurrentFocus();

    if (v != null) {

        InputMethodManager inputManager = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);

        inputManager.toggleSoftInputFromWindow(v.getWindowToken(), InputMethodManager.SHOW_FORCED, InputMethodManager.RESULT_UNCHANGED_SHOWN);
    }
}

I’m using getActivity because I’m using it in a fragment, so that part of the code can change according to the context of your app

Answer 2

I used it as follows:

Show/Hide in the same function (toggleSoftInput):

InputMethodManager imm = (InputMethodManager) getSystemService(this.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(0, 0);

Only hide (hideSoftInputFromWindow):

InputMethodManager inputManager = (InputMethodManager) this.getSystemService(Context.INPUT_METHOD_SERVICE);
        inputManager.hideSoftInputFromWindow(view.getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);

Only display (showSoftInput):

InputMethodManager imm = (InputMethodManager) getSystemService(this.INPUT_METHOD_SERVICE);
        imm.showSoftInput(this.cod, InputMethodManager.SHOW_IMPLICIT);