驱动REST API + GDAA无法删除该文件。
通过此问题并发表评论 How to delete a file on google drive using Google Drive Android API ，但当我使用driveid.getResourceId();作为fileId参数传递给旧的Drive API service.files().delete()方法时给出错误：
Error Required parameteres must be passed it may lead to Dead Lock
我的代码：
public class MainActivity extends Activity implements ConnectionCallbacks,
OnConnectionFailedListener {
private GoogleAccountCredential credential;
private static final int REQUEST_CODE_CREATOR = 2;
private static final int REQUEST_CODE_RESOLUTION = 3;
private static final int PICKFILE_RESULT_CODE = 1;
private static Uri fileUri;
private ContentsResult contentsresult;
private GoogleApiClient mGoogleApiClient;
byte[] buffer;
String EXISTING_FILE_ID = "";
int folderCreated = 0;
SharedPreferences prefs;
ArrayList<String> dbfileid = new ArrayList<String>();
ArrayList<String> dbfilename = new ArrayList<String>();
String fdd="";
DriveFolderResult sky;
private DriveId mFolderDriveId;
String isfolder;
SharedPreferences sp;
String Shared="Shared";
String folderid="";
SQLiteOpenHelper dbhelper;
SQLiteDatabase database;
int j=0;
String songfileid="";
private static com.google.api.services.drive.Drive service;
private static final String LOGTAG="EXPLORECA";
private static final String DATABASE_NAME="file.db";
private static final int DATABASE_VERSION=1;
private static final String TABLE="fileids";
private static final String filename="fname";
private static final String fileid="fid";
String realid ="";
@Override
protected void onResume() {
super.onResume();
initDrive();
}
private void initDrive() {
credential = GoogleAccountCredential.usingOAuth2(this,Arrays.asList(DriveScopes.DRIVE.split(",")));
credential.setSelectedAccountName("shivrajp130@gmail.com");
service = getDriveService(credential);
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(this).addApi(com.google.android.gms.drive.Drive.API)
.addScope(com.google.android.gms.drive.Drive.SCOPE_FILE).setAccountName("shivrajp130@gmail.com")
.addConnectionCallbacks(this).addOnConnectionFailedListener(this).build();
}
mGoogleApiClient.connect();
}
@Override
public void onConnectionFailed(ConnectionResult result) {
// Called whenever the API client fails to connect.
if (!result.hasResolution()) {
// show the localized error dialog.
showToast("Error in on connection failed");
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this,
0).show();
return;
}
try {
result.startResolutionForResult(this, REQUEST_CODE_RESOLUTION);
} catch (SendIntentException e) {
showToast("error" + e.toString());
}
}
@Override
public void onConnected(Bundle connectionHint) {
showToast("Inside Connected");
sp = getSharedPreferences(Shared, Context.MODE_PRIVATE);
showToast("Inside Connected");
createSkyFolder();
}
private void createSkyFolder()
{
// TODO Auto-generated method stub
try
{
showToast("creating Folder");
if(!sp.getString(isfolder, "false").contains("created"))
{
MetadataChangeSet changeSet = new MetadataChangeSet.Builder().
setTitle("Sky folder").build();
sky = Drive.DriveApi.getRootFolder(getGoogleApiClient())
.createFolder(getGoogleApiClient(), changeSet).await();
showToast("folder created");
sp.edit().putString(isfolder, "created").commit();
// To store secret ID string of file or folder so that we can later get a DriveId object.
realid = sky.getDriveFolder().getDriveId().encodeToString();
sp.edit().putString(folderid, realid).commit();
showToast("Real== "+realid);
}
DriveId retid = DriveId.decodeFromString(sp.getString(folderid, ""));
DriveFolder folder = Drive.DriveApi.getFolder(getGoogleApiClient(), retid);
MetadataChangeSet changeSet2 = new MetadataChangeSet.Builder()
.setTitle("New folder")
.build();
MetadataResult res = folder.updateMetadata(getGoogleApiClient(), changeSet2).await();
showToast("Folder== "+folder.getDriveId().encodeToString());
showToast("folder created");
upladfile();
}
catch(Exception e)
{
showToast(""+e);
}
}
private void upladfile() {
// TODO Auto-generated method stub
String storedId=sp.getString(folderid, "");
DriveId retid = DriveId.decodeFromString(storedId);
DriveFolder skyfolder = Drive.DriveApi.getFolder(getGoogleApiClient(), retid);
contentsresult = Drive.DriveApi.newContents(mGoogleApiClient).await();
OutputStream outputStream = contentsresult.getContents().getOutputStream();
String s = Environment.getExternalStoragePublicDirectory("Download")
.getPath().toString();
showToast(s);
File file = new File(s + "/k.mp3");
showToast("Path=" + Environment.DIRECTORY_DOWNLOADS + "/k"
+ file.length());
buffer = new byte[(int) file.length()];
try {
showToast("started reading n writing");
outputStream.write(buffer);
showToast("Buffer is written");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
showToast("" + e.toString());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
showToast("" + e.toString());
}
showToast("" + contentsresult.getContents().toString());
//DriveFolder fldr = Drive.DriveApi.getFolder(getGoogleApiClient(),sky.getDriveFolder().getDriveId());
MetadataChangeSet changeSet2 = new MetadataChangeSet.Builder()
.setTitle("New file").setMimeType("audio/MP3").setStarred(true)
.build();
showToast("meta data created");
DriveFileResult fileresult = skyfolder.createFile(getGoogleApiClient(),
changeSet2, contentsresult.getContents()).await();
songfileid = fileresult.getDriveFile().getDriveId().encodeToString();
showToast("file has been created "+fileresult.toString());
// Status stat = Drive.DriveApi.requestSync(mGoogleApiClient).await();
showToast("await() complete");
if (!contentsresult.getStatus().isSuccess()) {
showToast("Error while trying to create the file");
return;
}
add_to_db();
getvalues();
//String storedId=sp.getString(folderid, "");
DriveId fffid = DriveId.decodeFromString(dbfileid.get(0));
DriveFile fff = Drive.DriveApi.getFile(getGoogleApiClient(), fffid);
MetadataChangeSet changeSet3 = new MetadataChangeSet.Builder()
.setTitle("renamed")
.build();
MetadataResult res = fff.updateMetadata(getGoogleApiClient(), changeSet3).await();
if(res!=null)
{
showToast("renamed"+res.getMetadata().getTitle());
}
try {
//String iid=fffid.getResourceId();
service.files().delete(fffid.getResourceId()).execute();
showToast("Delete");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
protected void onActivityResult(final int requestCode,
final int resultCode, final Intent data) {
if (requestCode == REQUEST_CODE_RESOLUTION && resultCode == RESULT_OK) {
mGoogleApiClient.connect();
showToast("Connected");
}
}
@Override
protected void onPause() {
if (mGoogleApiClient != null) {
mGoogleApiClient.disconnect();
}
super.onPause();
}
public void showToast(final String toast) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), toast,
Toast.LENGTH_SHORT).show();
}
});
}
public GoogleApiClient getGoogleApiClient() {
return mGoogleApiClient;
}
public void add_to_db()
{
dbhelper=new fileiddb(this);
database=dbhelper.getWritableDatabase();
ContentValues values = new ContentValues();
String id =songfileid;
String name="k";
showToast("database id ="+id);
values.put(fileid,id);
values.put(filename,name);
database.insert(TABLE, null, values);
database.close();
Toast.makeText(this,"Added Successfully" ,Toast.LENGTH_LONG).show();
}
public void getvalues()
{
showToast("getting Values");
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE;
dbhelper=new fileiddb(this);
database=dbhelper.getWritableDatabase();
Cursor cursor = database.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
dbfileid.add(cursor.getString(0));
dbfilename.add(cursor.getString(1));
showToast("id=="+dbfileid.get(j).toString());
j++;
} while (cursor.moveToNext());
}
}
private com.google.api.services.drive.Drive getDriveService(GoogleAccountCredential credential) {
return new com.google.api.services.drive.Drive.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), credential)
.build();
}
@Override
public void onConnectionSuspended(int cause) {
showToast("GoogleApiClient connection suspended");
}
}
除delete外，一切正常。
service.files().delete(fffid.getResourceId()).execute();
答案 0 :(得分：0)
任何REST Api的 .execute（）（以及GDAA＆＃39; s .await（）风格的调用）都必须在UI线程下运行。你应该把它包装成：
new AsyncTask<Void, Void, Void>() {
@Override protected Integer doInBackground(String... params) {
//...
return null;
}
}.execute(); // .cancel(true);
或
new Thread(new Runnable() { @Override public void run() {
//....
}}).start();
祝你好运