天气系统

//History.java

package com.example.second;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class HistoryActivity extends Activity {

	private ListView userlv;
	
	
	//创建集合对象
	List list;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_history);
		
		userlv=(ListView)findViewById(R.id.list);
		
		//重点：listview实现依赖于适配器，而适配器又依赖于数据源
				//3.创建集合数据源
		list=new ArrayList();//初始化对象
				//向集合对象加入数据
		list.add("（0）发送者:1008611 2012-12-24 09:39" +
				"  New York 阴天");
		list.add("（1）发送者:100860000 2013-02-04 19:49" +
				"  Beijing 中雨");
		list.add("（2）发送者:18363853390 2013-03-12 14:02" +
				"  Rizhao 晴天");
		list.add("（3）发送者:10086 2013-07-20 22:39" +
				"  Dalian 晴天");
		
				
		//4.创建适配器对象
		//参1:表示当前适配器的宿主，必须写。
		//参2：表示当前适配器的数据源呈现形式。用简单列表的形式呈现数据
		//参3：表示数据源
		ArrayAdapter<String> adapter=
				new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,list);
				
		//5.把适配器绑定到listview控件中
		userlv.setAdapter(adapter);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.history, menu);
		return true;
	}

}

//Setting.java

package com.example.second;

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

public class SettingActivity extends Activity {
	private Button ok;
	private Button off;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_setting);
		ok=(Button)findViewById(R.id.ok_set);
		off=(Button)findViewById(R.id.off_set);
		
		ok.setOnClickListener(new OnClickListener(){

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				Intent in=new Intent(SettingActivity.this,SecondActivity.class);
				startActivity(in);
				
			}});
		
		off.setOnClickListener(new OnClickListener(){

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				Intent in2=new Intent(SettingActivity.this,SecondActivity.class);
				startActivity(in2);
				
			}});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.setting, menu);
		return true;
	}

}