AppUtils.java

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.provider.Settings;
import android.view.inputmethod.InputMethodManager;

public class AppUtils {

    public static void hideKeyboard(Activity context) {
        try {
            InputMethodManager inputManager = (InputMethodManager) context.getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            inputManager.hideSoftInputFromWindow(context.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void showKeyboard(Activity context) {
        try {
            InputMethodManager inputMethodManager = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
            inputMethodManager.showSoftInput(context.getCurrentFocus(), InputMethodManager.SHOW_IMPLICIT);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    @SuppressLint("HardwareIds")
    public static String getUniqueDeviceId(Context context) {
        return Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
    }
}