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;@Overrideprotected 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@Overridepublic 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);}//ifelse{Intent in=new Intent(MainActivity.this,ThirdActivity.class);startActivity(in);}}});//b.setOnClickListener//调用系统电话服务callphone.setOnClickListener(new OnClickListener(){@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubIntent 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:[phone]"));//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(){@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubIntent 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@Overridepublic 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;}@Overridepublic 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;}//switchreturn false;}}