Question

i have an issue regarding a item from a menu to act like a Button, and i don’t know how to solve it.

In a item from menu i refeer to a item expandable like this:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:id="@+id/item1" android:title="Item1" />
  <item android:id="@+id/item2" android:title="Item2" />
</menu>

and i dont know how to define it, and use it like a button, like this:

public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  Button button = (Button) findViewById(R.id.button);

  button.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) {
      String uri=null;

      Intent intent = new Intent(RingtoneManager.ACTION_RINGTONE_PICKER);
      intent.putExtra(RingtoneManager.EXTRA_RINGTONE_TYPE,
                      RingtoneManager.TYPE_RINGTONE);
      if (uri !=null) {
        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI,
                        Uri.parse(uri));        
      } else {
        intent.putExtra(RingtoneManager.EXTRA_RINGTONE_EXISTING_URI,
                        (Uri)null);
      }

      startActivityForResult(intent, 1);
    }
  });

Thanks in advance,

Answer 1

So you want to implement a menu. For API 10 or lower, put menu.xml in res/menu/ and override these two functions in your activity:

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

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
    case R.id.item1:
        // Do something
        break;
    case R.id.item2:
        // Do something else
        break;
    }
    return true;
}

For API 11+, consider using an action bar as explained here.

Update

For Preferences menus you will want to use findPreference() and define a custom setOnPreferenceClickListener(). Rather than copying code snippets here, follow any of these three detailed tutorials:

• http://www.kaloer.com/android-preferences
• http://androidpartaker.wordpress.com/tag/ringtonepreference/
• http://www.bogotobogo.com/Android/android16Preferences.php