Android为Notification加上一个进度条

package com.notification;

import android.app.activity;

import android.app.notification;

import android.app.notificationmanager;

import android.app.pendingintent;

import android.content.intent;

import android.os.bundle;

import android.os.handler;

import android.os.message;

import android.view.view;

import android.view.view.onclicklistener;

import android.widget.button;

import android.widget.remoteviews;

import android.widget.toast;

public class nofificationactivity extends activity implements onclicklistener {

    private static final int notification_id = 0x12;

    private notification notification = null;

    private notificationmanager manager = null;

    public handler handler;

    private int _progress = 0;

    private thread thread = null;

    private boolean isstop = false;

    // 当界面处理停止的状态 时，设置让进度条取消

    @override

    protected void onpause() {

        // todo auto-generated method stub

        isstop = false;

        manager.cancel(notification_id);

        super.onpause();

    }

    /** called when the activity is first created. */

    public void oncreate(bundle savedinstancestate) {

        super.oncreate(savedinstancestate);

        setcontentview(r.layout.main);

        button btn = (button) findviewbyid(r.id.button01);

        btn.setonclicklistener(this);

        notification = new notification(r.drawable.icon, "带进条的提醒", system

                .currenttimemillis());

        notification.icon = r.drawable.icon;

        // 通过remoteviews 设置notification中view 的属性

        notification.contentview = new remoteviews(getapplication()

                .getpackagename(), r.layout.custom_dialog);

        notification.contentview.setprogressbar(r.id.pb, 100, 0, false);

        notification.contentview.settextviewtext(r.id.tv, "进度" + _progress

                + "%");

        // 通过pendingintetn

        // 设置要跳往的activity，这里也可以设置发送一个服务或者广播，

        // 不过在这里的操作都必须是用户点击notification之后才触发的

        notification.contentintent = pendingintent.getactivity(this, 0,

                new intent(this, remoteview.class), 0);

        // 获得一个notificationmanger 对象，此对象可以对notification做统一管理，只需要知道id

        manager = (notificationmanager) getsystemservice(notification_service);

    public void onclick(view v) {

        isstop = true;

        manager.notify(notification_id, notification);

        thread = new thread(new runnable() {

            @override

            public void run() {

                thread.currentthread();

                // todo auto-generated method stub

                while (isstop) {

                    _progress += 10;

                    message msg = handler.obtainmessage();

                    msg.arg1 = _progress;

                    msg.sendtotarget();

                    try {

                        thread.sleep(500);

                    } catch (interruptedexception e) {

                        // todo auto-generated catch block

                        e.printstacktrace();

                    }

                }

            }

        });

        thread.start();

        handler = new handler() {

            public void handlemessage(message msg) {

                notification.contentview.setprogressbar(r.id.pb, 100, msg.arg1,

                        false);

                notification.contentview.settextviewtext(r.id.tv, "进度"

                        + msg.arg1 + "%");

                manager.notify(notification_id, notification);

                if (msg.arg1 == 100) {

                    _progress = 0;

                    manager.cancel(notification_id);

                    isstop = false;

                    toast.maketext(nofificationactivity.this, "下载完毕", 1000)

                            .show();

                super.handlemessage(msg);

        };

}