java - 通知错误“NotificationCompat.Builder 类型的方法 setProgress(int, int, boolean) 未定义”

Question

有谁知道下载文件时如何在通知栏中显示进度条更新？

    Context context = MyClass.this.getApplicationContext();
    NotificationManager notificationManager = (NotificationManager) 
                                context.getSystemService(NOTIFICATION_SERVICE);
    Notification updateComplete = new Notification();
    updateComplete.icon         = R.drawable.ic_launcher;
    updateComplete.tickerText   = "Starting to download...";
    updateComplete.when         = System.currentTimeMillis();
    Intent notificationIntent   = new Intent(context, MyClass.class);
    PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
                                                        notificationIntent, 0);
    String contentTitle         = "Download"; 
    updateComplete.setLatestEventInfo
                      (context, contentTitle, "downloading...", contentIntent);
    notificationManager.notify("yyy",1, updateComplete);

Answer 1

这是一个可以帮助您的示例：http: //developer.android.com/training/notify-user/display-progress.html

Answer 2

您可以在我的项目中引用我的实现：通知处理程序： https ://code.google.com/p/wifi-scanner/source/browse/src/com/shixunaoyou/wifiscanner/update/DownloadNotificationHandler.java

及下载服务： https ://code.google.com/p/wifi-scanner/source/browse/src/com/shixunaoyou/wifiscanner/update/DownloadUpdateService.java