Force Hide Keyboard Android

README.md

Force Hide Keyboard

You can force Android to hide the virtual keyboard using the InputMethodManager, calling hideSoftInputFromWindow, passing in the token of the window containing your focused view.

public static void hideKeyboard(Activity activity) {
    View view = activity.findViewById(android.R.id.content);
    if (view != null) {
        InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }
}

This will force the keyboard to be hidden in all situations. In some cases you will want to pass in InputMethodManager.HIDE_IMPLICIT_ONLY as the second parameter to ensure you only hide the keyboard when the user didn't explicitly force it to appear (by holding down menu).

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KeyboardUtils.java

import android.app.Activity;
import android.content.Context;
import android.graphics.Rect;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

public class KeyboardUtils {

    public static void hideKeyboard(Activity activity) {
        View view = activity.findViewById(android.R.id.content);
        if (view != null) {
            InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
        }
    }

    public static void showKeyboard(Activity activity) {
        InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
        inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
    }

    public static void addKeyboardVisibilityListener(View rootLayout, OnKeyboardVisibiltyListener onKeyboardVisibiltyListener) {
        rootLayout.getViewTreeObserver().addOnGlobalLayoutListener(() -> {
            Rect r = new Rect();
            rootLayout.getWindowVisibleDisplayFrame(r);
            int screenHeight = rootLayout.getRootView().getHeight();

            // r.bottom is the position above soft keypad or device button.
            // if keypad is shown, the r.bottom is smaller than that before.
            int keypadHeight = screenHeight - r.bottom;

            boolean isVisible = keypadHeight > screenHeight * 0.15; // 0.15 ratio is perhaps enough to determine keypad height.
            onKeyboardVisibiltyListener.onVisibilityChange(isVisible);
        });
    }

    public interface OnKeyboardVisibiltyListener {
        void onVisibilityChange(boolean isVisible);
    }
}