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   源码介绍

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实现了 收发邮件功能 以及查看邮件详细内容

下拉菜单中 选择 126邮箱

package mi.email.activity;

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

import mi.learn.com.R;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;

public class Welcome extends Activity {

	private EditText txtEmailAddress;
	private EditText txtPWD;
	private Button btnOK; 
	private Spinner emailTypeSpinner;
	private static final String SAVE_INFORMATION = "save_information";

	@Override
	protected void onCreate(Bundle savedInstanceState) { 
		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);
		emailTypeSpinner=(Spinner)findViewById(R.id.emailType);
		List<EmailType> lst = new ArrayList<EmailType>();
		lst.add(new EmailType (1,"网易163"));
		lst.add(new EmailType (2,"网易126"));
		lst.add(new EmailType (3,"腾讯"));
		lst.add(new EmailType (4,"搜狐"));
		lst.add(new EmailType (5,"新浪CN"));
		lst.add(new EmailType (6,"新浪COM"));
		lst.add(new EmailType (7,"雅虎"));
		ArrayAdapter<EmailType > adapter = new ArrayAdapter<EmailType>(this,     
				android.R.layout.simple_spinner_item, lst);
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
		emailTypeSpinner.setAdapter(adapter);
		emailTypeSpinner.requestFocus();
		// 给EditText进行 初始化付值，以方便运行程序
		txtEmailAddress.setText("***@126.com");
		txtPWD.setText("****");

		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());
				EmailType emailType=(EmailType)emailTypeSpinner.getSelectedItem();
				switch (emailType.getID()) {
				case 1://网易163
					editor.putString("receive_host", "pop.163.com");
					editor.putString("send_host", "smtp.163.com");
					break;
				case 2://网易126
					editor.putString("receive_host", "pop.126.com");
					editor.putString("send_host", "smtp.126.com");
					break;
				case 3://腾讯
					editor.putString("receive_host", "pop.qq.com");
					editor.putString("send_host", "smtp.qq.com");
					break;
				case 4://搜狐
					editor.putString("receive_host", "pop.sohu.com");
					editor.putString("send_host", "smtp.sohu.com");
					break;
				case 5://新浪cn
					editor.putString("receive_host", "pop.sina.cn");
					editor.putString("send_host", "smtp.sina.cn");
					break;
				case 6://新浪com
					editor.putString("receive_host", "pop.sina.com");
					editor.putString("send_host", "smtp.sina.com");
					break;
				case 7://雅虎
					editor.putString("receive_host", "pop.mail.yahoo.com.cn");
					editor.putString("send_host", "smtp.mail.yahoo.com.cn");
					break;
				}
				
				// 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);
			}
		});

	}
	

}