我需要获取我上传到谷歌驱动器的视频链接，以便我可以在网络浏览器中打开视频，我可以将视频文件上传到谷歌驱动器，也可以使用以下内容获取文件ID代码：
private void UploadFile(final DriveId driveId)
{
Drive.DriveApi.newDriveContents(mGoogleApiClient).setResultCallback(new ResultCallback<DriveApi.DriveContentsResult>() {
@Override
public void onResult(@NonNull DriveApi.DriveContentsResult driveContentsResult)
{
if (!driveContentsResult.getStatus().isSuccess())
{
Log.e(TAG, "Error while trying to create new file contents");
return;
}
OutputStream outputStream = driveContentsResult.getDriveContents().getOutputStream();
Toast.makeText(context, "Uploading to drive....", Toast.LENGTH_LONG).show();
final File theFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/VideoFiles/testVideo.mkv");
try
{
FileInputStream fileInputStream = new FileInputStream(theFile);
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = fileInputStream.read(buffer)) != -1)
{
outputStream.write(buffer, 0, bytesRead);
}
} catch (IOException e1)
{
Log.i(TAG, "Unable to write file contents.");
}
MetadataChangeSet changeSet = new MetadataChangeSet.Builder().setTitle(theFile.getName()).setMimeType("video/mkv").setStarred(false).build();
DriveFolder folder = driveId.asDriveFolder();
folder.createFile(mGoogleApiClient, changeSet, driveContentsResult.getDriveContents()).setResultCallback(new ResultCallback<DriveFolder.DriveFileResult>() {
@Override
public void onResult(@NonNull DriveFolder.DriveFileResult driveFileResult)
{
if (!driveFileResult.getStatus().isSuccess())
{
Log.e(TAG, "Error while trying to create the file");
return;
}
Log.v(TAG, "Created a file: " + driveFileResult.getDriveFile().getDriveId());
}
});
}
});
}
我尝试使用以下代码获取视频网址：
DriveFile file = Drive.DriveApi.getFile(googleApiClient,driveId);
DriveResource.MetadataResult mdRslt = file.getMetadata(googleApiClient).await();
if (mdRslt != null && mdRslt.getStatus().isSuccess()) {
String link = mdRslt.getMetadata().getWebContentLink();
Log.d("LINK", link);
}
但后来我得到了“无法解析符号'googleApiClient' 有什么建议吗？
答案 0 :(得分：0)
好的，我找到了解决方案，首先我必须使用更改事件监听器获取已完成的文件ID，然后我们可以将“drive.google.com/open?id=”添加到文件ID中，这样complate url将是drive.google.com/open?id=FileID。 这是我的答案：
public class Uploader extends Activity implements ConnectionCallbacks,OnConnectionFailedListener{
private static final String TAG = "Google Drive Activity";
private static final int REQUEST_CODE_RESOLUTION = 1;
private static final int REQUEST_CODE_OPENER = 2;
private GoogleApiClient mGoogleApiClient;
public DriveFile file;
private String FOLDER_NAME = "GD_VideoFile";
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
protected void onResume()
{
super.onResume();
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(Drive.API)
.addScope(Drive.SCOPE_FILE)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
mGoogleApiClient.connect();
}
@Override
protected void onStop()
{
super.onStop();
if (mGoogleApiClient != null) {
mGoogleApiClient.disconnect();
}
super.onPause();
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult result)
{
Log.i(TAG, "GoogleApiClient connection failed: " + result.toString());
if (!result.hasResolution()) {
GoogleApiAvailability.getInstance().getErrorDialog(this, result.getErrorCode(), 0).show();
return;
}
try {
result.startResolutionForResult(this, REQUEST_CODE_RESOLUTION);
} catch (SendIntentException e) {
Log.e(TAG, "Exception while starting resolution activity", e);
}
}
@Override
public void onConnected(Bundle connectionHint)
{
Toast.makeText(getApplicationContext(), "Connected", Toast.LENGTH_LONG).show();
if (mGoogleApiClient != null)
{
check_folder_exists();
} else
{
Log.e(TAG, "Could not connect to google drive manager");
}
}
@Override
public void onConnectionSuspended(int cause)
{
Log.i(TAG, "GoogleApiClient connection suspended");
}
@Override
protected void onActivityResult(final int requestCode,
final int resultCode, final Intent data)
{
switch (requestCode)
{
case REQUEST_CODE_OPENER:
if (resultCode == RESULT_OK)
{
DriveId mFileId = data.getParcelableExtra(
OpenFileActivityBuilder.EXTRA_RESPONSE_DRIVE_ID);
Log.e("file id", mFileId.getResourceId() + "");
String url = "https://drive.google.com/open?id="+ mFileId.getResourceId();
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
}
break;
default:
super.onActivityResult(requestCode, resultCode, data);
break;
}
}
private void check_folder_exists()
{
Query query = new Query.Builder().addFilter(Filters.and(Filters.eq(SearchableField.TITLE, FOLDER_NAME), Filters.eq(SearchableField.TRASHED, false))).build();
Drive.DriveApi.query(mGoogleApiClient, query).setResultCallback(new ResultCallback<DriveApi.MetadataBufferResult>() {
@Override
public void onResult(@NonNull DriveApi.MetadataBufferResult result)
{
if (!result.getStatus().isSuccess())
{
Log.e(TAG, "Cannot create folder in the root.");
} else
{
boolean isFound = false;
for (Metadata m : result.getMetadataBuffer())
{
if (m.getTitle().equals(FOLDER_NAME)) {
Log.e(TAG, "Folder exists");
isFound = true;
DriveId driveId = m.getDriveId();
UploadFile(driveId);
break;
}
}
if (!isFound)
{
Log.i(TAG, "Folder not found; creating it.");
MetadataChangeSet changeSet = new MetadataChangeSet.Builder().setTitle(FOLDER_NAME).build();
Drive.DriveApi.getRootFolder(mGoogleApiClient)
.createFolder(mGoogleApiClient, changeSet)
.setResultCallback(new ResultCallback<DriveFolder.DriveFolderResult>() {
@Override
public void onResult(@NonNull DriveFolder.DriveFolderResult result)
{
if (!result.getStatus().isSuccess())
{
Log.e(TAG, "Error while trying to create the folder");
} else {
Log.i(TAG, "Created a folder");
DriveId driveId = result.getDriveFolder().getDriveId();
UploadFile(driveId);
}
}
});
}
}
}
});
}
private void UploadFile(final DriveId driveId)
{
Drive.DriveApi.newDriveContents(mGoogleApiClient).setResultCallback(new ResultCallback<DriveApi.DriveContentsResult>()
{
@Override
public void onResult(@NonNull DriveApi.DriveContentsResult driveContentsResult)
{
if (!driveContentsResult.getStatus().isSuccess())
{
Log.e(TAG, "U AR A MORON! Error while trying to create new file contents");
return;
}
OutputStream outputStream = driveContentsResult.getDriveContents().getOutputStream();
Toast.makeText(Uploader.this, "Uploading to drive....", Toast.LENGTH_LONG).show();
final File theFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/MyMobile_Videos/a.mov");
try
{
FileInputStream fileInputStream = new FileInputStream(theFile);
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = fileInputStream.read(buffer)) != -1)
{
outputStream.write(buffer, 0, bytesRead);
}
} catch (IOException e1)
{
Log.i(TAG, "Unable to write file contents.");
}
MetadataChangeSet changeSet = new MetadataChangeSet.Builder().setTitle(theFile.getName()).setMimeType("video/mov").setStarred(false).build();
DriveFolder folder = driveId.asDriveFolder();
folder.createFile(mGoogleApiClient, changeSet, driveContentsResult.getDriveContents()).setResultCallback(new ResultCallback<DriveFolder.DriveFileResult>()
{
@Override
public void onResult(@NonNull DriveFolder.DriveFileResult driveFileResult)
{
if (!driveFileResult.getStatus().isSuccess())
{
Log.e(TAG, "Error while trying to create the file");
return;
}
Toast.makeText(Uploader.this, "Created a file: " + driveFileResult.getDriveFile().getDriveId(), Toast.LENGTH_LONG).show();
String Folder_Id = driveId.getResourceId();
System.out.println("The folder id: " +Folder_Id);
//This is to get the file id from the listener
DriveId File_Uncompleted_Id = driveFileResult.getDriveFile().getDriveId();
DriveFile file = Drive.DriveApi.getFile(mGoogleApiClient, File_Uncompleted_Id);
file.addChangeListener(mGoogleApiClient, changeListener);
}
//A listener to handle file change events.
final private ChangeListener changeListener = new ChangeListener()
{
@Override
public void onChange(ChangeEvent event)
{
String File_Completed_Id = event.getDriveId().getResourceId();
System.out.println("The uploaded file id: " +File_Completed_Id);
System.out.println("File URL: https://drive.google.com/open?id=" +File_Completed_Id);
}
};
}
);
}
}
);
}
}