android notification通知栏方式更新APP

这次是我第一次写博客哦,各位程序大哥大姐们多多捧场啊.,下面是我自己写的一个像支付宝一样在

通知栏弹出notification来动态实时更新app版本,成功则让用户点击安装,失败则可以点击重试,也可以点击取消.

里面用了广播接收者和service组件.

话不多说,直接上代码啦.

首先是activity判断是否需要更新,如果需要更新,则把URL放到bundle里,传递给service

public void update() {        Intent intent = new Intent(this, UpdateService.class);//这里是以支付宝的APP URL 来当作更新的APP, 大家自行修改就行啦        intent.putExtra("downUrl", "http://tfs.alipayobjects.com/L1/71/100/and/alipay_wap_main.apk");        startService(intent);    }

接下来就是更新的service了,我用到了xutils框架,其实没什么东西,如果你没用过的话,你就用个别的能下载,下载完了 成功和失败都有回调就行啦.

package com.ycb.www.news.services;import android.app.Service;import android.content.Intent;import android.os.Environment;import android.os.IBinder;import android.support.annotation.Nullable;import android.text.TextUtils;import android.util.Log;import com.lidroid.xutils.HttpUtils;import com.lidroid.xutils.exception.HttpException;import com.lidroid.xutils.http.HttpHandler;import com.lidroid.xutils.http.ResponseInfo;import com.lidroid.xutils.http.callback.RequestCallBack;import java.io.File;import java.text.NumberFormat;/** * 下载的services,配合xutils的httputils使用,完成notification的下载功能 */public class UpdateService  extends Service{    //是否已经开始下载    private boolean isBegin=false;    Intent intent ;    public static HttpHandler<File> downLoadHandler;    private NumberFormat numberFormat;    @Nullable    @Override    public IBinder onBind(Intent intent) {        return null;    }    @Override    public void onCreate() {        super.onCreate();        intent =new Intent();        numberFormat = NumberFormat.getInstance();        numberFormat.setMaximumFractionDigits(2);    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        String downUrl = intent.getStringExtra("downUrl");        //如果下载地址为空,则什么都不干        if(TextUtils.isEmpty(downUrl)){                stopSelf();//            throw  new IllegalArgumentException("the download url is empty!!!!");            return 0;        }        if(isBegin){            //此时已经开始了            return 0;        }else{            isBegin=true;        }            downLoad(downUrl);        return super.onStartCommand(intent, flags, startId);    }    private void downLoad(final String downUrl) {        Log.i("tag","开始下载!!!");        HttpUtils hu=new HttpUtils(10000);        downLoadHandler = hu.download(downUrl,                Environment.getExternalStorageDirectory().getAbsolutePath()+"/ycb.apk", new RequestCallBack<File>() {                    @Override                    public void onCancelled() {                        stopSelf();                        super.onCancelled();                    }                    @Override            public void onSuccess(ResponseInfo<File> responseInfo) {                intent.setAction("com.ycb.www.complete");                intent.putExtra("filepath", responseInfo.result.getAbsolutePath());                Log.i("tag", responseInfo.result.getAbsolutePath());                sendBroadcast(intent);                stopSelf();            }            @Override            public void onFailure(HttpException error, String msg) {                intent.setAction("com.ycb.www.failed");                intent.putExtra("downUrl", downUrl);//                Log.i("tag", "onFailure!!!");                sendBroadcast(intent);            }            @Override            public void onLoading(long total, long current, boolean isUploading) {                Double rate= (double)current / (double)total;                String format = numberFormat.format(rate);                int   r= (int) (Double.valueOf(format)*100);//                Log.i("tag", ""+r);                intent.putExtra("rate", r);                intent.setAction("com.ycb.www.updating");                sendBroadcast(intent);                super.onLoading(total, current, isUploading);            }        });    }}

下面是用到的 广播接收者,代码有注释,看不懂的可以下面跟我交流哦.

import android.annotation.TargetApi;import android.app.Notification;import android.app.NotificationManager;import android.app.PendingIntent;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.Uri;import android.os.Build;import android.widget.RemoteViews;import java.io.File;/** * notification更新的广播接收者,根据action不同,做出的结果不同, * 其中intent因为是同一个intent的,所以并没有new 新的 * */public class UpdateReceiver extends BroadcastReceiver {    private NotificationManager manager;    private RemoteViews views;    private Notification notification;            @Override        public void onReceive(Context context, Intent intent) {               if(notification==null) {             //版本兼容,高低版本初始化notification的方式不同            if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.JELLY_BEAN)                initNotification(context);            else{                initNotificationForLowVersion(context);            }        }        String action = intent.getAction();            switch (action) {                case "com.ycb.www.cancel":                    manager.cancel(0);//如果传递过来的是用户取消,则用notificationManger取消通知栏,并取消下载                    UpdateService.downLoadHandler.cancel();                    break;                case "com.ycb.www.failed":                    intent.setAction("com.ycb.www.restart"); //如果是失败了,则通知用户下载失败,点击重试                    PendingIntent failedpendingIntent=PendingIntent.getBroadcast(context, 200, intent, PendingIntent.FLAG_CANCEL_CURRENT);                    views.setOnClickPendingIntent(R.id.ll_content, failedpendingIntent);//给布局文件添加点击事件                    views.setTextViewText(R.id.tv, "下载失败,点击重试");                    manager.notify(0, notification);                    break;                case "com.ycb.www.restart":                    manager.cancel(0);                    intent.setClass(context, UpdateService.class);//service重新下载的action,配合下载失败                    context.startService(intent);                    break;                case "com.ycb.www.install":  //下载成功以后安装APP的action                    manager.cancel(0);                    Intent startInstall =new Intent();                    startInstall.setAction(Intent.ACTION_VIEW);                    String filepath = intent.getStringExtra("filepath");                    startInstall.setDataAndType(Uri.fromFile(new File(filepath)), "application/vnd.android.package-archive");                    startInstall.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);                    context.startActivity(startInstall);                    break;                case "com.ycb.www.complete":   //下载完成后action                    intent.setAction("com.ycb.www.install");                    PendingIntent pendingIntent=PendingIntent.getBroadcast(context, 200, intent, PendingIntent.FLAG_CANCEL_CURRENT);                    views.setOnClickPendingIntent(R.id.ll_content, pendingIntent);                    views.setTextViewText(R.id.tv, "下载完成,点击安装");                    views.setProgressBar(R.id.progressBar, 100, 100, false);                    manager.notify(0, notification);                    break;                case "com.ycb.www.updating":   //一直在更新的action                    int rate = intent.getIntExtra("rate", 0);                    views.setTextViewText(R.id.tv,"正在下载...."+rate+"%");                    views.setProgressBar(R.id.progressBar,100,rate,false);                    manager.notify(0, notification);  //通过不停的notify 动态更新状态栏            }        }             //初始化低版本的notification,    private void initNotificationForLowVersion(Context context) {        //设置notifiction布局        views = new RemoteViews(context.getPackageName(), R.layout.notification_update);        notification=new Notification();        notification.when=System.currentTimeMillis();        notification.tickerText="银承宝新版正在下载";        //设置view        notification.contentView=views;        //设置小图标        notification.icon=R.drawable.img_menu;        //设置布局文件中的textView的内容        views.setTextViewText(R.id.tv, "下载中....0%");        //设置布局文件中的ProgressBar进度        views.setProgressBar(R.id.progressBar, 100, 0, false);        //退出的intent        Intent intent=new Intent("com.ycb.www.cancel");        //退出的延迟意图        PendingIntent mPendingIntent =PendingIntent.getBroadcast(context.getApplicationContext(),200,intent,PendingIntent.FLAG_UPDATE_CURRENT);        //点击之后退出        views.setOnClickPendingIntent(R.id.ib, mPendingIntent);    }    /**     * 初始化高版本的notification     * @param context     */            @TargetApi(Build.VERSION_CODES.JELLY_BEAN)            private void initNotification(Context context){                manager = (NotificationManager)context. getSystemService(Context.NOTIFICATION_SERVICE);                views = new RemoteViews(context.getPackageName(), R.layout.notification_update);                Notification.Builder builder=new Notification.Builder(context.getApplicationContext());                notification = builder.setAutoCancel(false).setSmallIcon(R.drawable.img_menu).setContentText("下载中").setContentTitle("下载").                        setWhen(System.currentTimeMillis()).setTicker("XXXX APP 正在下载")                        .setContent(views).build();                views.setTextViewText(R.id.tv, "下载中....0%");                views.setProgressBar(R.id.progressBar, 100, 0, false);                Intent intent=new Intent("com.ycb.www.cancel");                PendingIntent mPendingIntent =PendingIntent.getBroadcast(context.getApplicationContext(),200,intent,PendingIntent.FLAG_UPDATE_CURRENT);                views.setOnClickPendingIntent(R.id.ib, mPendingIntent);            }}

最后就是用到的权限和 manifest里面的配置了.

 <uses-permission android:name="android.permission.INTERNET"></uses-permission>    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>

   <service android:name=".services.UpdateService"></service>        <receiver android:name=".receiver.UpdateReceiver">            <intent-filter>                <action android:name="com.ycb.www.complete"></action>                <action android:name="com.ycb.www.install"></action>                <action android:name="com.ycb.www.cancel"></action>                <action android:name="com.ycb.www.updating"></action>                <action android:name="com.ycb.www.failed"></action>                <action android:name="com.ycb.www.restart"></action>            </intent-filter>        </receiver>

附送源码,点击下载,不用谢我了