在一个页面中点击menu按钮，添加几个菜单项，点击相应的菜单项，能执行相应的操作

代码

在某个页面中点击menu按钮，添加几个菜单项，点击相应的菜单项，能执行相应的操作
java代码如下：

package com.event;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.app.AlertDialog.Builder;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.view.WindowManager.LayoutParams;
import android.widget.Button;
import android.widget.TextView;

public class EventText1 extends Activity {
/** Called when the activity is first created. */
    @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
       requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(LayoutParams.FLAG_FULLSCREEN, LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.main);

    }


public void onClickButton(View view) {
//在这右键找onCreateOptionsMenu
    
   }

 @Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
  menu.add("menu1");
  menu.add("menu2");

return true;
 }
//在这右键onOptionsItemSelected，这段代码是使得相应的菜单选项能够相应。

 @Override
public boolean onOptionsItemSelected(MenuItem item) {

if(item.getTitle().equals("menu1")){//字符串的等于
   Log.v("you selected", item.getTitle().toString());
//在此添加相应的菜单，应该执行的操作
  }
else if(item.getTitle().equals("menu2")){//字符串的等于
   Log.v("you selected", item.getTitle().toString());
//在此添加相应的菜单，应该执行的操作
  }
return super.onOptionsItemSelected(item);
 }

 }

上面的方法只适合在

onOptionsItemSelected里面直接用字符串进行比较，对于真机里面的，只能用字符串定义引用的方法来用字符串，如@String/...这种方法来用这个字符串，而不能直接引用的时候，
这种方法就不好使了，下面这种更好。

java代码


package com.menu.test1;

import java.text.DateFormat;
import java.util.Date;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.Window;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.Toast;
//import android.os.IHardwareService;

public class MenuTest1 extends Activity {
/** Called when the activity is first created. */
private LinearLayout mLinearLayout;
private static final int WHITE_BRIGHT = Menu.FIRST;
private static final int GRAY_BRIGHT = WHITE_BRIGHT + 1;
private static final int BLACK_BRIGHT = GRAY_BRIGHT + 1;
private static final int WHITE_DIM = BLACK_BRIGHT + 1;
private static final int GRAY_DIM  = WHITE_DIM + 1;
private static final int BLACK_DIM  = GRAY_DIM + 1;

private String TAG = "MenuTest1";

// 颜色值定义，程序中并没有全部使用。
    private int[] color = { R.drawable.white, R.drawable.gray,
            R.drawable.black, R.drawable.blue, R.drawable.pink,
            R.drawable.green, R.drawable.orange, R.drawable.yellow };

    @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

//设置全屏 requestWindowFeature(Window.FEATURE_NO_TITLE);
         getWindow().setFlags ( WindowManager.LayoutParams.FLAG_FULLSCREEN,
         WindowManager.LayoutParams.FLAG_FULLSCREEN );
//然后调用布局
        setContentView(R.layout.main);
//设置屏幕的最初亮度
        WindowManager.LayoutParams lp = getWindow().getAttributes();
        lp.screenBrightness = 0.3f;
        getWindow().setAttributes(lp);
        mLinearLayout = (LinearLayout) findViewById(R.id.myLinearLayout1);
    }

    @Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
        menu.add(0, WHITE_BRIGHT, 0,R.string.white_increase);
        menu.add(0,GRAY_BRIGHT,1,R.string.gray_increase);
        menu.add(0,BLACK_BRIGHT,2,R.string.black_increase);
        menu.add(0,WHITE_DIM,3,R.string.white_decrease);     
        menu.add(0,GRAY_DIM,4,R.string.gray_decrease);
        menu.add(0,BLACK_DIM,5,R.string.black_decrease);

return super.onCreateOptionsMenu(menu);
    }

    @Override
public boolean onOptionsItemSelected(MenuItem item) {
        Log.v(TAG, "options start...");
switch(item.getItemId()){
     //下面不包括变亮和变暗的代码！
        case WHITE_BRIGHT:
            showMsg("白亮");
            mLinearLayout.setBackgroundResource(color[0]);
            break;
        case GRAY_BRIGHT:
            showMsg("灰亮");
            mLinearLayout.setBackgroundResource(color[1]);
            break;
        case BLACK_BRIGHT:
            showMsg("黑亮");
            mLinearLayout.setBackgroundResource(color[2]);
            break;
        case WHITE_DIM:
            showMsg("白暗");
            mLinearLayout.setBackgroundResource(color[0]);
            break;
        case GRAY_DIM:
            showMsg("灰暗");
            mLinearLayout.setBackgroundResource(color[1]);
            break;
        case BLACK_DIM:
            showMsg("黑暗");
            mLinearLayout.setBackgroundResource(color[2]);
            break;
            
       
        }

return super.onOptionsItemSelected(item);
    }

private void showMsg(String message) {
        Toast msg = Toast.makeText(MenuTest1.this, message, Toast.LENGTH_LONG);
        msg.show();
    }

}