Utility class for Android Toast object

Question

I have decided to write my own Utility class for Toast to cut repetitive code

public class Utilities {

public static void initializeToast(Context context, Toast toast, String res) {
    cancelToast(toast);
    toast = Toast.makeText(context, res, Toast.LENGTH_SHORT);
    toast.show();
}

public static void cancelToast(Toast toast){
    if (toast != null) {
        toast.cancel();
    }
}
}

As you can see there are two methods. I want to avoid of initializing of stacked toasts, that's way I cancel the old toast before the new one. In my client-classes I'm using it like that:

public class AddGroupActivity extends AppCompatActivity {

private EditText mEditWordView;
private Toast toast;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_add_group);
    mEditWordView = findViewById(R.id.editText);
    final Button button = findViewById(R.id.add_group_button);
    button.setOnClickListener(view -> {
        if (TextUtils.isEmpty(mEditWordView.getText())) {
            Utilities.initializeToast(this, toast, "Message Example");
        }
    });
}
}

When I click on button multiple times I'm getting stacked toasts - previous toasts are not being destroyed. So I need a help to define why it behaves in this way.

UPDATE Earlier I wrote the toast-code inside activity class and it worked perfectly. For example:

public class AddGroupActivity extends AppCompatActivity {

private EditText mEditWordView;
private Toast toast;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_add_group);
    mEditWordView = findViewById(R.id.editText);
    final Button button = findViewById(R.id.add_group_button);
    button.setOnClickListener(view -> {
        if (TextUtils.isEmpty(mEditWordView.getText())) {
            initToast("Message");
        }
    });
}

private void cancelToast() {
    if (toast != null) {
        toast.cancel();
    }
}

@Override
protected void onDestroy() {
    super.onDestroy();
    cancelToast();
}

private void initToast(String res) {
    cancelToast();
    toast = Toast.makeText(this, res, Toast.LENGTH_SHORT);
    toast.show();
}
}

Answer 1

public static void initializeToast(Context context, Toast toast, String res) {
    cancelToast(toast);
    if(toast == null){ // prevent create many instance of toast
       toast = Toast.makeText(context, res, Toast.LENGTH_SHORT);
    }else{
       toast.setText(res);
    }
    toast.show();
}

Answer 2

I've finally found the problem. Thanks to the commentary from Vladyslav Matviienko. My private field was initialized as local variable which was being destroyed after every invocation of the method and that's way cancelToast(toast) didn't bring any effect.

Utility class

public class Utilities {

public static Toast initializeToast(Context context, Toast toast, String res) {
    cancelToast(toast);
    return Toast.makeText(context, res, Toast.LENGTH_SHORT);
}

public static void cancelToast(Toast toast) {
    if (toast != null) {
        toast.cancel();
    }
}
}

Example of client class

public class AddGroupActivity extends AppCompatActivity {

private EditText mEditWordView;
private Toast toast;

@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_add_group);
  mEditWordView = findViewById(R.id.editText);
  final Button button = findViewById(R.id.add_group_button);
  button.setOnClickListener(view -> {
    if (TextUtils.isEmpty(mEditWordView.getText())) {
        toast = Utilities.initializeToast(this, toast, "Message Example");
        toast.show();
    }
});
}
}