为上篇的Android 乘法计算器，加入菜单。

上篇地址：http://davice-li.iteye.com/blog/763026

 

在Activity03.java 中修改一下 就可以了。

package com.test.app;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Activity03 extends Activity {
    /** Called when the activity is first created. */
 private EditText editTextOne;
 private TextView textView;
 private EditText editTextTwo;
 private Button button;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        editTextOne=(EditText)findViewById(R.id.MyOne);
        textView=(TextView)findViewById(R.id.MyTextView);
        editTextTwo=(EditText)findViewById(R.id.MyTwo);
        button=(Button)findViewById(R.id.MyButton);
        textView.setText(R.string.fh);
        button.setText("计算");
        button.setOnClickListener(new CalListener());
    }
    
    
    
    @Override
    //当客户点击menu 按钮时，会调用该方法。
 public boolean onCreateOptionsMenu(Menu menu) {
  // TODO Auto-generated method stub
     menu.add(0, 1, 1, R.string.exit);
     menu.add(0,2,2,R.string.about);
  return super.onCreateOptionsMenu(menu);
 }



 @Override
 //当客户点击 菜单中的某项时，会调用该方法。
 public boolean onOptionsItemSelected(MenuItem item) {
  // TODO Auto-generated method stub
  if(item.getItemId()== 1){
   finish();
  }
  return super.onOptionsItemSelected(item);
 }



 class CalListener implements OnClickListener{
  @Override
  public void onClick(View v) {
   // TODO Auto-generated method stub
   
   String oneStr = editTextOne.getText().toString();
   String twoStr = editTextTwo.getText().toString();
   
   Intent intent= new Intent();
   intent.putExtra("first", oneStr);
   intent.putExtra("second", twoStr);
   intent.setClass(Activity03.this, CalActivity.class);
   startActivity(intent);
  }

 
     
     
    }
}