How to access shared file

问题

In my Andorid app, I want to access only those file which is shared with me either by web(drive.google.com) or app. I am using google drive API to access shared file but I am not able to access any file or folder shared with me. My code is given below.

public class QueryFilesSharedWithMeActivity extends BaseDemoActivity {

private ListView mResultsListView;
private ResultsAdapter mResultsAdapter;

@Override
protected void onCreate(Bundle b) {
    super.onCreate(b);
    setContentView(R.layout.activity_listfiles);
    mResultsListView = (ListView) findViewById(R.id.listViewResults);
    mResultsAdapter = new ResultsAdapter(this);
    mResultsListView.setAdapter(mResultsAdapter);
}

/**
 * Clears the result buffer to avoid memory leaks as soon as the activity is no longer
 * visible by the user.
 */
@Override
protected void onStop() {
    super.onStop();
    mResultsAdapter.clear();
}

@Override
public void onConnected(Bundle connectionHint) {
    super.onConnected(connectionHint);
    Query query = new Query.Builder()
            .addFilter(Filters.sharedWithMe())
            .build();
    Drive.DriveApi.query(getGoogleApiClient(), query)
            .setResultCallback(metadataCallback);
}

final private ResultCallback<DriveApi.MetadataBufferResult> metadataCallback =
        new ResultCallback<DriveApi.MetadataBufferResult>() {
            @Override
            public void onResult(DriveApi.MetadataBufferResult result) {
                if (!result.getStatus().isSuccess()) {
                    showMessage("Problem while retrieving results");
                    return;
                }
                mResultsAdapter.clear();
                mResultsAdapter.append(result.getMetadataBuffer());
            }
        };

}

Note* Can we filter a file or folder shared with me with a specific folder name?

回答1:

Is your app authorized to access the shared files? Currently Google Drive Android API only supports FILE scope access (see details here). So if your app is not authorized to access those shared files, you won't receive them in the query result.

来源：https://stackoverflow.com/questions/31092339/how-to-access-shared-file