Android 使用 Gmail 来发送邮件

1. [代码]SendMail.java    

package org.apache.android.mail;  

import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 
import android.widget.EditText;  

public class SendMail extends Activity { 
    /**
     * Called with the activity is first created.
     */ 
    @Override 
    public void onCreate(Bundle icicle) { 
        super.onCreate(icicle); 
        setContentView(R.layout.main); 
        final Button send = (Button) this.findViewById(R.id.send); 
        final EditText userid = (EditText) this.findViewById(R.id.userid); 
        final EditText password = (EditText) this.findViewById(R.id.password); 
        final EditText from = (EditText) this.findViewById(R.id.from); 
        final EditText to = (EditText) this.findViewById(R.id.to); 
        final EditText subject = (EditText) this.findViewById(R.id.subject); 
        final EditText body = (EditText) this.findViewById(R.id.body); 
        send.setOnClickListener(new View.OnClickListener() { 
            public void onClick(View view) { 
                GMailSender sender = new GMailSender(userid.getText().toString(),
                    password.getText().toString()); 
                try { 
                    sender.sendMail(subject.getText().toString(), 
                            body.getText().toString(), 
                            from.getText().toString(), 
                            to.getText().toString()); 
                } catch (Exception e) { 
                    Log.e("SendMail", e.getMessage(), e); 
                } 
            } 
        }); 
    } 
}