如何从另一个类调用菜单对象？

Question

These are codes, how to pass the menu object from one class to another? What's wrong with my code?

This is my MainActivity class.

public class MainActivity extends AppCompatActivity {
 @Override
protected void onCreate(Bundle savedInstanceState) {
@Override
public boolean onCreateOptionsMenu(Menu menu) {

    getMenuInflater().inflate(R.menu.main_menu, menu);
    return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {

    String msg = " ";
    switch (item.getItemId()){
        case R.id.action_settings:
            msg = "Settings";
            break;
        case R.id.action_report:
            msg= "Report";
            break;
    }

    Toast.makeText(this, msg + "Checked", Toast.LENGTH_LONG).show();
    return super.onOptionsItemSelected(item);
}

This is my SecondActivity class

public class Income extends AppCompatActivity{

View_Expenses v = new View_Expenses();

@Override
protected void onCreate(Bundle savedInstanceState) {
            v.onCreateOptionsMenu(R.menu.main_menu); //Here have problem
}

Answer 1

Copy the same code you used in the first activity in the second one,

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main_menu, menu);
    return super.onCreateOptionsMenu(menu);
}

not the code you tried in onCreate . If you want the menu item responses to be the same, copy the onOptionsItemSelected method too.