如何检查使用GoogleDrive API的上传进度?
service.files()。insert(body,mediaContent).execute(); 仅返回文件,我们可以检查该文件是否已完全上传。
但是我需要实时检查进度(至少每秒一次),还是要这样做吗?
对于下载部分,我认为我们可以手动比较从输入流中读取的字节数与总文件大小,然后计算当前进度。
但这是正确的方法吗?还是有其他更好的方式检查进度?
private void saveFileToDrive() {
Thread t = new Thread(new Runnable() {
@Override
public void run() {
try {
// File's binary content
java.io.File fileContent = new java.io.File(fileUri.getPath());
FileContent mediaContent = new FileContent("image/jpeg", fileContent);
// File's metadata.
File body = new File();
body.setTitle(fileContent.getName());
body.setMimeType("image/jpeg");
File file = service.files().insert(body, mediaContent).execute();
if (file != null) {
showToast("Photo uploaded: " + file.getTitle());
//startCameraIntent();
}
} catch (UserRecoverableAuthIOException e) {
startActivityForResult(e.getIntent(), REQUEST_AUTHORIZATION);
} catch (IOException e) {
e.printStackTrace();
}
}
});
t.start();
}
编辑:使用此代码http://code.google.com/p/google-api-java-client/source/browse/drive-cmdline-sample/src/main/java/com/google/api/services/samples/drive/cmdline/DriveSample.java?repo=samples&name=based-on-1.12&r=08555cd2a27be66dc97505e15c60853f47d84b5a
如果我正在使用可恢复上传,我现在可以取得一些进展,我将chunksize设置为1MB。
但是现在有两个问题。
1)可恢复上传比单次上传要慢得多,因为可恢复上传在两次之间间隔多次,每次仅发送1MB。
如果我将chunksize设置为更高,则对于较小的文件根本不会显示进度。
因此,可恢复上传的进度并不是我真正想要的。我想要单次上传的进度。
2)如果我将chunksize设置为大约1MB,则对于正常的10MB文件,我的上载总是失败,而失败,约为70%。
如果我将chunksize设置为10MB,那么它将成功,但是我看不到任何进展。
Drive.Files.Insert insert = service.files().insert(body, mediaContent);
MediaHttpUploader uploader = insert.getMediaHttpUploader();
uploader.setDirectUploadEnabled(false);
uploader.setChunkSize(10*1024*1024); // previously I am using 1000000 thats why it won't work
uploader.setProgressListener(new FileUploadProgressListener());
com.google.api.services.drive.model.File f = insert.execute();
LogCat错误:
11-27 19:23:26.927: D/FileUploadProgressListener(11527): Upload is In Progress: 0.5235538030501893
11-27 19:23:33.692: D/FileUploadProgressListener(11527): Upload is In Progress: 0.56095050326806
11-27 19:23:38.294: D/FileUploadProgressListener(11527): Upload is In Progress: 0.5983472034859306
11-27 19:23:50.583: D/FileUploadProgressListener(11527): Upload is In Progress: 0.6357439037038013
11-27 19:23:55.091: D/FileUploadProgressListener(11527): Upload is In Progress: 0.673140603921672
11-27 19:24:05.130: D/FileUploadProgressListener(11527): Upload is In Progress: 0.7105373041395426
11-27 19:24:17.005: D/FileUploadProgressListener(11527): Upload is In Progress: 0.7479340043574133
11-27 19:24:28.888: D/FileUploadProgressListener(11527): Upload is In Progress: 0.785330704575284
11-27 19:24:28.896: W/HttpTransport(11527): exception thrown while executing request
11-27 19:24:28.896: W/HttpTransport(11527): java.io.IOException: unexpected end of stream
11-27 19:24:28.896: W/HttpTransport(11527): at libcore.net.http.FixedLengthOutputStream.close(FixedLengthOutputStream.java:58)
11-27 19:24:28.896: W/HttpTransport(11527): at com.google.api.client.http.javanet.NetHttpRequest.execute(NetHttpRequest.java:88)
11-27 19:24:28.896: W/HttpTransport(11527): at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:980)
11-27 19:24:28.896: W/HttpTransport(11527): at com.google.api.client.googleapis.media.MediaHttpUploader.upload(MediaHttpUploader.java:293)
11-27 19:24:28.896: W/HttpTransport(11527): at com.google.api.services.drive.Drive$Files$Insert.executeUnparsed(Drive.java:309)
11-27 19:24:28.896: W/HttpTransport(11527): at com.google.api.services.drive.Drive$Files$Insert.execute(Drive.java:331)
最佳答案
进度监听器:
private class FileUploadProgressListener implements MediaHttpUploaderProgressListener {
private String mFileUploadedName;
public FileUploadProgressListener(String fileName) {
mFileUploadedName = fileName;
}
@Override
public void progressChanged(MediaHttpUploader mediaHttpUploader) throws IOException {
if (mediaHttpUploader == null) return;
switch (mediaHttpUploader.getUploadState()) {
case INITIATION_STARTED:
//System.out.println("Initiation has started!");
break;
case INITIATION_COMPLETE:
//System.out.println("Initiation is complete!");
break;
case MEDIA_IN_PROGRESS:
double percent = mediaHttpUploader.getProgress() * 100;
if (Ln.DEBUG) {
Log.d(Ln.TAG, "Upload to Dropbox: " + mFileUploadedName + " - " + String.valueOf(percent) + "%");
}
notif.setProgress(percent, mFileUploadedName).fire();
break;
case MEDIA_COMPLETE:
//System.out.println("Upload is complete!");
}
}
}
此处的更多信息:
https://code.google.com/p/google-api-java-client/wiki/MediaUpload
由于库的体系结构,您必须在块和进度之间进行选择,或者在没有进度的情况下进行选择。
最小的块大小应该可以改善情况。
较小的块:
setChunkSize(MediaHttpUploader.MINIMUM_CHUNK_SIZE)
希望能帮助到你!