Question

I love this site all you guys are awesome! but here is another problem I have:
In my app I have a webview that displays a website in the entire screen, I have made a code to show a menu through pushing the phone’s menu button from where i want 2 things to happen 1st menu item Go back to main screen of the app, 2nd menu item quit the app or exit the app.
First problem:
after pressing the menu button it shows the menu… if I press it again it shows the two choices twice, if I press it again now both items shows 3 times and so on!
Second Problem:
after choosing any of the two choices nothing happens!
here is my code please tell me what I’m doing wrong!
Thanks

menu xml:

<?xml version="1.0" encoding="utf-8"?>
<menu
  xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/menuToMenu"
android:title="Menu Principal"
/>
<item
android:id="@+id/menuToSalir"
android:title="Salir"
/>
</menu>

Backtomain.java

import android.app.Activity;
import android.os.Bundle;

public class Backtomain extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}

and where I call the menu:

public boolean onPrepareOptionsMenu (Menu menu){
        super.onCreateOptionsMenu(menu);
        MenuInflater mostrar = getMenuInflater();
        mostrar.inflate(R.menu.main_menu, menu);
        return true;
        }

    public boolean onOptionItemSelected(MenuItem item){
        switch (item.getItemId()){
        case R.id.menuToMenu:
            startActivity (new Intent("my.app.BACKTOMAIN"));
            return true;
        case R.id.menuToSalir:
            finish();
            System.exit(0);
            return true;
        }
        return false;
    }

Answer 1

You are calling super.onCreateOptionsMenu() from onPrepareOptionsMenu(). And, you are inflating the same options into the menu in onPrepareOptionsMenu(). Rename onPrepareOptionsMenu() to onCreateOptionsMenu(), and it will probably behave better.

Also:

• If you think the my.app.BACKTOMAIN activity is running, you probably want to add FLAG_ACTIVITY_REORDER_TO_FRONT or FLAG_ACTIVITY_CLEAR_TOP to the Intent.
• Get rid of the menuToSalir menu choice. No well-written Android application will call System.exit(0). Users leave your application by pressing the HOME button, no different than they might in a Web app.