我仍然是Android的新手,我正在尝试改进我的通知进度条以使其更顺畅,不会对我的Pebble进行一百万次更新并以“正确的方式”进行操作。此代码工作“正常”,就像我使用它时,通知绘制和进度条按预期完成。
当我将Pebble手表设置为接受我的应用程序通知时,这对我来说成了一个问题。这导致每个上传的图像振动约50次,具体取决于上传速度的速度。
作为一名初学者,我认为我这样做是错误的,并且有更好的方法来做我想做的事。
我的通知的进度条使用以下代码更新:
private int upload_progress;
private Long time_previous_progress = Calendar.getInstance().getTimeInMillis();
protected void onProgressUpdate(Integer... progress) {
Long time_now = Calendar.getInstance().getTimeInMillis();
if(
((time_now - time_previous_progress) < 55) // 55ms minimum delay
|| (progress[0] < 0 && progress[0] > 100) // progress >0 && <100
|| progress[0].equals(upload_progress) // progress changed
|| ! App.getStatus() // watcher is running
)
{
return;
}
time_previous_progress = time_now;
upload_progress = progress[0];
int upload_counter = getUploadCounter();
int upload_total = db.getReadyImagesCount();
NotificationHandler.notify(context, upload_progress, upload_counter, (upload_total + upload_counter));
}
然后使用以下代码生成通知:
public static int notify(Context context, Integer progress, Integer upload_count, Integer upload_total)
{
Bitmap bm = BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_launcher);
String notif_title = context.getResources().getString(R.string.instant_upload_title);
String notif_progress = context.getResources().getString(R.string.instant_upload_progress);
String notif_ticker = String.format(notif_progress, upload_count, upload_total);
String notif_msg = String.format(notif_progress, upload_count, upload_total);
Intent intent_swipe = new Intent(context, NotifyReceiver.class);
intent_swipe.setAction("notification_cancelled");
PendingIntent pendingIntent_swipe = PendingIntent.getBroadcast(context, 0, intent_swipe, PendingIntent.FLAG_CANCEL_CURRENT);
Intent intent_click = new Intent(context, Settings.class);
intent_click.putExtra("notification_clicked", true);
PendingIntent pendingIntent_click = PendingIntent.getActivity(context, 0, intent_click, PendingIntent.FLAG_CANCEL_CURRENT);
int pro_max = 100;
int pro_cur = 0;
if(progress < 100)
{
pro_cur = progress;
}else{
pro_cur = pro_max = 0;
}
//new NotificationCompat.Builder(context)
NotificationCompat.Builder builder = new NotificationCompat.Builder(context) //PixelRelayApplication.getNotificationBuilder()
.setTicker(notif_ticker)
.setContentTitle(notif_title)
.setContentText(notif_msg)
.setNumber(upload_count)
.setSmallIcon(R.drawable.ic_launcher)
.setLargeIcon(bm)
.setContentIntent(pendingIntent_click)
.setDeleteIntent(pendingIntent_swipe)
.setAutoCancel(true)
.setOngoing(true)
.setWhen(Calendar.getInstance().getTimeInMillis())
.setProgress(pro_max, pro_cur, false);
Notification notification = builder.build();
// Put the auto cancel notification flag
notification.flags |= Notification.FLAG_AUTO_CANCEL | Notification.FLAG_ONLY_ALERT_ONCE;
NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
notificationManager.notify(NOTIFY_ME_ID, notification);
return NOTIFY_ME_ID;
}
答案 0 :(得分:10)
您可以使用适用于您通过Github访问它的想法的开源代码:Progress Watch - A progress bar watchface for pebble。如果您决定重用代码,我的建议是:
答案 1 :(得分:3)
我通过在第一次通知后设置正在进行的标记来修复此问题。
因此,重复使用构建器,并在发送第一个通知后,更新构建器,以便它创建持续通知:
builder.setOngoing(true);
当然,这也意味着更新的通知将继续进行,http://developer.android.com/reference/android/app/Notification.Builder.html#setOngoing(boolean)
答案 2 :(得分:0)
更新进度的行为是正确的。它应该在有任何变化时立即更新。
但是你应该只更新UI部分(如进度条更新)。
如果您使用振动通知而不使用振动。