show dialog to input text with lib Material Dialogs

MaterialDialogInputText.java

import com.afollestad.materialdialogs.MaterialDialog.Builder;

new MaterialDialog.Builder(this)
                    .content("Enter your name")
                    .inputRange(5,20)
                    .cancelable(false)
                    .inputType(InputType.TYPE_TEXT_FLAG_CAP_WORDS)
                    .input("your name", null, new MaterialDialog.InputCallback() {
                        @Override
                        public void onInput(MaterialDialog dialog, CharSequence input) {
                            String name = input.toString();
                            Log.d("input_name", name);
                            SharedPreferences.Editor editor = myPrefrence.edit();
                            editor.putString("name", name);
                            editor.apply();
                            tv.setText(input.toString());
                            Snackbar.make(navLayout,"Have a nice day, "+name+"!",Snackbar.LENGTH_SHORT).show();
                        }
            });
            .show();