自己的第一个android应用（天气）

主界面代码

package com.example.weather;

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 MainActivity extends Activity {
 private Button tokyo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tokyo=(Button)findViewById(R.id.wtky);
        tokyo.setOnClickListener(new OnClickListener(){

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

    @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);
        return true;
    }
   
}

第二个界面

package com.example.weather;

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 SecActivity extends Activity {

 private Button more;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_sec);
  
  more=(Button)findViewById(R.id.morebutton);
  more.setOnClickListener(new OnClickListener(){

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

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

}

第三界面：

package com.example.weather;

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 ThiActivity extends Activity {
 private Button morei;
 private Button history;
 private Button game;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_thi);
  morei=(Button)findViewById(R.id.more);
  history=(Button)findViewById(R.id.hiswea);
  game=(Button)findViewById(R.id.gbutton);
  morei.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    Intent in=new Intent(ThiActivity.this,MoreActivity.class);
    startActivity(in);
   }});//morei.set
  history.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    Intent in2=new Intent(ThiActivity.this,HisActivity.class);
    startActivity(in2);
   }});//history.set
  
  game.setOnClickListener(new OnClickListener(){

   @Override
   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    Intent in3=new Intent(ThiActivity.this,GameActivity.class);
    startActivity(in3);
   }});
  
  
  
 }

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

}