Android调用系统的发邮件功能的小例子

package com.example.myapi.email;

import java.util.arraylist;
import java.util.list;

import android.content.context;
import android.content.intent;
import android.net.uri;

public class sendemailutils {
    private sendemailutils(){}
    private static sendemailutils instance;
    public static sendemailutils getinstance(){
        synchronized (sendemailutils.class) {
            if(instance == null){
                instance = new sendemailutils();
            }
        }
        return instance;
    }
    /**
     * 这是一个简单的测试，不支持带附件，多人，抄送发送等。
     * @param context
     */
    public void sendemail(context context){
        intent intent = new intent();
        intent.setdata(uri.parse("mailto:"));
        /*设置邮件的标题*/
        intent.putextra(intent.extra_subject, "别紧张，这仅仅是一个测试！");
        /*设置邮件的内容*/
        intent.putextra(intent.extra_text, "测试打开系统邮箱并将发送的标题和内容自动填充到邮箱，并发送邮件，");
        //开始调用
        context.startactivity(intent);
    }
    /**
     * 发邮件，带抄送，和密送，并带上个附件
     * @param context
     */
    public void sendemailduo(context context){
        intent intent = new intent(intent.action_send);
//        intent.setdata(uri.parse("mailto:"));
        string[] tos = { "[e-mail]" };
        string[] ccs = { "[e-mail]" };
        string[] bccs = {"[e-mail]"};
        intent.putextra(intent.extra_email, tos); //收件者
        intent.putextra(intent.extra_cc, ccs); //抄送这
        intent.putextra(intent.extra_bcc, bccs); //密送这
        intent.putextra(intent.extra_text, "邮件内容");
        intent.putextra(intent.extra_subject, "邮件标题");

        intent.putextra(intent.extra_stream, uri.parse("file:///mnt/sdcard/a.jpg"));
        intent.settype("image/*");
        intent.settype("message/rfc882");
        intent.createchooser(intent, "choose email client");
        context.startactivity(intent);

    }
    /**
     * 多附件发送
     * @param conext
     */
    public void sendfujian(context conext){
        intent intent = new intent(intent.action_send_multiple);
        string[] tos = { "[e-mail]" };
        string[] ccs = { "[e-mail]" };
        intent.putextra(intent.extra_email, tos);
        intent.putextra(intent.extra_cc, ccs);
        intent.putextra(intent.extra_text, "body");
        intent.putextra(intent.extra_subject, "subject");

        list<uri> imageuris = new arraylist<uri>();
        imageuris.add(uri.parse("file:///mnt/sdcard/a.jpg"));
        imageuris.add(uri.parse("file:///mnt/sdcard/b.jpg"));
        intent.putextra(intent.extra_stream, imageuris);
        intent.settype("image/*");
        intent.settype("message/rfc882");
        intent.createchooser(intent, "choose email client");
        conext.startactivity(intent);
    }

}