在Android中以编程方式使用Google Drive API将图像上传到Google Drive

Question

我可以使用google drive android api将文本文件上传到google drive中的文件夹。 样例代码

但是我想将一张图片升级到Google Drive。这可能吗？

用于创建文本文件的代码：

final private ResultCallback<DriveContentsResult> driveContentsCallback = new
        ResultCallback<DriveContentsResult>() {
    @Override
    public void onResult(DriveContentsResult result) {
        if (!result.getStatus().isSuccess()) {
            showMessage("Error while trying to create new file contents");
            return;
        }
        final DriveContents driveContents = result.getDriveContents();

        // Perform I/O off the UI thread.
        new Thread() {
            @Override
            public void run() {
                // write content to DriveContents
                OutputStream outputStream = driveContents.getOutputStream();
                Writer writer = new OutputStreamWriter(outputStream);
                try {
                    writer.write("Hello World!");
                    writer.close();
                } catch (IOException e) {
                    Log.e(TAG, e.getMessage());
                }

                MetadataChangeSet changeSet = new MetadataChangeSet.Builder()
                        .setTitle("New file")
                        .setMimeType("text/plain")
                        .setStarred(true).build();

                // create a file on root folder
                Drive.DriveApi.getRootFolder(getGoogleApiClient())
                        .createFile(getGoogleApiClient(), changeSet, driveContents)
                        .setResultCallback(fileCallback);
            }
        }.start();
    }
};

现在我需要MimeType（“ image / jpeg”），我必须更改OutputStreamWriter吗？

任何帮助表示赞赏.. :)

Answer 1

警告：Drive Android API自2018年12月6日起弃用，并将于2019年12月6日被拒绝。因此，您不应将图像上传到Google Drive进行存储，应使用Firebase /其他解决方案

您的代码用于上传文本文件。 要上传图片文件，请使用以下代码：

private GoogleApiClient mGoogleApiClient;
private Bitmap mBitmapToSave;


private void saveFileToDrive() {

    final Bitmap image = mBitmapToSave;
    Drive.DriveApi.newDriveContents(mGoogleApiClient)
            .setResultCallback(new ResultCallback<DriveContentsResult>() {

        @Override
        public void onResult(DriveContentsResult result) {

            if (!result.getStatus().isSuccess()) {
                Log.i("ERROR", "Failed to create new contents.");
                return;
            }


            OutputStream outputStream = result.getDriveContents().getOutputStream();
            // Write the bitmap data from it.
            ByteArrayOutputStream bitmapStream = new ByteArrayOutputStream();
            image.compress(Bitmap.CompressFormat.PNG, 100, bitmapStream);
            try {
                outputStream.write(bitmapStream.toByteArray());
            } catch (IOException e1) {
                Log.i("ERROR", "Unable to write file contents.");
            }
            // Create the initial metadata - MIME type and title.
            // Note that the user will be able to change the title later.
            MetadataChangeSet metadataChangeSet = new MetadataChangeSet.Builder()
                    .setMimeType("image/jpeg").setTitle("Android Photo.png").build();
            // Create an intent for the file chooser, and start it.
            IntentSender intentSender = Drive.DriveApi
                    .newCreateFileActivityBuilder()
                    .setInitialMetadata(metadataChangeSet)
                    .setInitialDriveContents(result.getDriveContents())
                    .build(mGoogleApiClient);
            try {
                startIntentSenderForResult(
                        intentSender, REQUEST_CODE_CREATOR, null, 0, 0, 0);
            } catch (SendIntentException e) {
                Log.i("ERROR", "Failed to launch file chooser.");
            }
        }
    });
}

@Override
protected void onResume() {
    super.onResume();
    if (mGoogleApiClient == null) {
        // Create the API client and bind it to an instance variable.
        // We use this instance as the callback for connection and connection
        // failures.
        // Since no account name is passed, the user is prompted to choose.
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addApi(Drive.API)
                .addScope(Drive.SCOPE_FILE)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .build();
    }
    // Connect the client. Once connected, the camera is launched.
    mGoogleApiClient.connect();
}

@Override
protected void onPause() {
    if (mGoogleApiClient != null) {
        mGoogleApiClient.disconnect();
    }
    super.onPause();
}

还实现ConnectionCallbacksand和OnConnectionFailedListener侦听器。