package mi.email.activity;

import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;

import mi.learn.com.R;import android.app.Activity;import android.app.Dialog;import android.app.ProgressDialog;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Bundle;import android.util.Log;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;

public class Welcome extends Activity {

private EditText txtEmailAddress;private EditText txtPWD;private Button btnOK;private Button btnRead;

private static final String SAVE_INFORMATION = "save_information";

    @Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.welcome);

        txtEmailAddress = (EditText) findViewById(R.id.txtEmailAddress);        txtPWD = (EditText) findViewById(R.id.txtPWD);        btnOK = (Button) findViewById(R.id.btnOK);

// 给EditText进行 初始化付值，以方便运行程序        txtEmailAddress.setText("javamail_android@sina.com");       txtPWD.setText("javamail_android");

       btnOK.setOnClickListener(new OnClickListener() {public void onClick(View v) {

// 获得编辑器                SharedPreferences.Editor editor = getSharedPreferences(SAVE_INFORMATION, MODE_WORLD_WRITEABLE).edit();// 将EditText文本内容添加到编辑器                editor.putString("save", txtEmailAddress.getText().toString() + ";" + txtPWD.getText().toString());// 提交编辑器内容                editor.commit();// 定义Intent，实现点击按钮，进行界面跳转                Intent intent = new Intent();              intent.setClass(Welcome.this, ReceiveAndSend.class);              startActivity(intent);            }        });

    }

}

package mi.email.activity;

import mi.learn.com.R;import android.app.Activity;import android.app.Dialog;import android.app.ProgressDialog;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;

public class ReceiveAndSend extends Activity {private Button btnReceiveEmail;private Button btnSendEmail;

protected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.receive_send);        btnReceiveEmail = (Button) findViewById(R.id.btnReceiveEmail);        btnSendEmail = (Button) findViewById(R.id.btnSendEmail);        btnReceiveEmail.setOnClickListener(new OnClickListener() {

public void onClick(View v) {// TODO Auto-generated method stub                Intent intent_second = new Intent();                intent_second.setClass(ReceiveAndSend.this, ReceiveList.class);                showDialog(0);//显示进度条对话框                   startActivity(intent_second);            }        });

        btnSendEmail.setOnClickListener(new OnClickListener() {

public void onClick(View v) {// TODO Auto-generated method stub                Intent intent_third=new Intent();                intent_third.setClass(ReceiveAndSend.this, SendMail.class);                showDialog(0);//显示进度条对话框'                startActivity(intent_third);            }        });

    }

protected Dialog onCreateDialog(int id) {// 显示网络连接Dialog        ProgressDialog dialog = new ProgressDialog(this);        dialog.setTitle("请稍候。。。");        dialog.setIndeterminate(true);        dialog.setMessage("程序正在加载。。。");return dialog;    }

}