菜单及其详细信息

Question

我在很多情况下都遇到了错误，并且能够通过SO的答案解决。但我没有找到错误的答案。请给我一个正确的方法来delcare并在下面的代码中定义函数..

谢谢你的推荐

package Cdis.Banglore.widget;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;

public class WidgetActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main);

    }

    @Override 
        public boolean onCreateOptionsMenu(Menu menu)
    {
        super.onCreateOptionsMenu(menu);
        menu.add(0,0,0, "Auto Complete");
        menu.add(0,1,1, "Button");
        menu.add(0,2,2, "CheckBox");
        menu.add(0,3,3, "Edit Text");
        menu.add(0,4,4, "RadioGroup");
        menu.add(0,5,5, "Spinner=");
        return true;

    }
    @Override
    public boolean onOptionsItemSelected(Menu.Item item)
    {
        switch(item.getItemId())
        {
        case 0: 
            showAutoComplete();
            return true;
        case 1: 
            showButton();
            return true;    
        case 2: 
            showCheckBox();
            return true;
        case 3: 
            editText();
            return true;
        case 4: 
            Rio();
            return true;
        case 5: 
            Spnr();
            return true;
        }
        return true;
        }


    public void showAutoComplete()
    {
        Intent autocomplete = new Intent(this, autocomplete.class);
        startActivity(autocomplete);

    }

    public void showButton()
    {
        Intent show = new Intent(this, testButton.class);
        startActivity(show);

    }
    public void showCheckBox()
    {
        Intent box = new Intent(this, testButton.class);
        startActivity(box);

    }

    public void editText()
    {
        Intent text = new Intent(this, editText.class);
        startActivity(text);
    }
    public void Rio()
    {
        Intent rad = new Intent(this, Radio.class);
        startActivity(rad);
    }

    public void Spnr()
    {
        Intent spr = new Intent(this, Spinn.class);
        startActivity(spr);
    }


}