[英]Progress Bar of DownloadManager with percentage
I would like to obtain like some this: 我想获得这样的东西:
But I don't know how I can to obtain the percentage. 但是我不知道如何获得百分比。
I've read this posts: 我读了这篇文章:
But I haven't gotten any good result =( 但是我没有得到任何好的结果=(
¿Any idea? 任何想法?
I can get the total size and the bytes downloaded for a file, but I don't know how I can get that the progress bar shows these information in a percentage wa 我可以获取文件的总大小和下载的字节数,但是我不知道如何获得进度条以百分比形式显示这些信息。
int sizeIndex = c.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES);
int downloadedIndex = c.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR);
int size = c.getInt(sizeIndex);
int downloaded = c.getInt(downloadedIndex);
int percentage = (downloaded * 100 / size);
Just create a notification when you start downloading 开始下载时只需创建一个通知
mNotifyManager = (NotificationManager) getApplicationContext().getSystemService(getApplicationContext().NOTIFICATION_SERVICE);
mBuilder = new NotificationCompat.Builder(this);
mBuilder.setContentTitle("Downloading file")
.setContentText("Downloading... 0%")
.setSmallIcon(R.drawable.your_icon);
mNotifyManager.notify(YOUR_TAG, mBuilder.build());
And then you can update progress calling that same notification whit YOUR_TAG 然后,您可以通过调用相同的通知YOUR_TAG来更新进度
mBuilder.setContentText("Downloading... " + CURRENT_BYTES * 100.0/TOTAL_BYTES + "%")
.setProgress(TOTAL_BYTES, CURRENT_BYTES, false);
mNotifyManager.notify(YOUR_TAG, mBuilder.build());
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