东软实习（二）天气预报系统--MainActivity.java

package com.example.second;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
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.ImageButton;

public class MainActivity extends Activity {
	private Button login1;//1.创建登录b对象，并导入所在的包
	private EditText name;//
	private EditText word;
	private Button callphone;//创建打电话b2对象
	private Button message;//发短信对象
	
	
	//1.定义菜单项,类型为全局静态的整数
		final static int menu_forecast=Menu.FIRST;
		final static int menu_history=Menu.FIRST+1;
		final static int menu_setting=Menu.FIRST+2;
		
		

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		//2.对b对象进行实例化
		login1=(Button)findViewById(R.id.login);
		callphone=(Button)findViewById(R.id.callh);
		message=(Button)findViewById(R.id.sendsms);
		name=(EditText)findViewById(R.id.name1);
		word=(EditText)findViewById(R.id.pass);
		
		//3.创建b单击事件，参数传递匿名内部数
		login1.setOnClickListener(new OnClickListener(){//导入并add

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				//System.out.println("hello word!........");//向控制台输出
				//成功跳转用Intent对象。Intent必须有两个参数：
				//一个是原类，即出发点，以.this结尾；另一个是要跳转到的类，即终止点，以.class结尾
				//Intent in=new Intent(MainActivity.this,SecondActivity.class);
				//startActivity(in);
				
				//使登录信息正确时，才登录
				String username=name.getText().toString();
				String password=word.getText().toString();
				if(username.equals("zhangsan")&&password.equals("123456")){
					Intent in=new Intent(MainActivity.this,SecondActivity.class);
					startActivity(in);
				}//if
				else{
					Intent in=new Intent(MainActivity.this,ThirdActivity.class);
					startActivity(in);
				}				
				
			}});//b.setOnClickListener
		
		
		//调用系统电话服务
		callphone.setOnClickListener(new OnClickListener(){

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				Intent in2=new Intent();//创建in2意图对象
				in2.setAction(Intent.ACTION_CALL);//指定意图动作，电话动作
				in2.setData(Uri.parse("tel:18363855523"));//指定电话号码，tel 为电话协议
				startActivity(in2);//启动意图
				
			}});//b2
		
		
		//短信服务
		message.setOnClickListener(new OnClickListener(){

			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
			Intent in3=new Intent();
			in3.setAction(Intent.ACTION_SENDTO);
			in3.setData(Uri.parse("smsto:18363866667"));
			in3.putExtra("sms_body", "hello android");//短信内容
			//MainActivity.this.startActivity(in3);//
			startActivity(in3);//的另一种写法
			}});//b3
		
	}//onCreate

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		//getMenuInflater().inflate(R.menu.main, menu);
		
		//把每一个菜单项加入到菜单对象menu中
				menu.add(0,menu_forecast, 0, "天气预报").setIcon(android.R.drawable.alert_light_frame);
				                                //加系统中（android.R）的图片
				menu.add(0, menu_history, 1, "历史数据").setIcon(android.R.drawable.ic_lock_silent_mode);
				menu.add(0, menu_setting, 2, "系统设置").setIcon(android.R.drawable.btn_dropdown);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		//return super.onOptionsItemSelected(item);
		switch(item.getItemId()){
		case menu_forecast:
			System.out.println("menu_forecast");
			Intent in4=new Intent(MainActivity.this,ForecastActivity.class);
			startActivity(in4);
			return true;
		case menu_history:
			System.out.println("menu_history");
			Intent in5=new Intent(MainActivity.this,HistoryActivity.class);
			startActivity(in5);
			return true; 
		case menu_setting:
			System.out.println("menu_setting");
			Intent in6=new Intent(MainActivity.this,SettingActivity.class);
			startActivity(in6);
			return true;
		}//switch
		
		return false;
	}
	
	

}