我正在尝试将文本文件发送到drop-box，但它无法正常工作。据我所知，我已经正确完成了所有编码。有人请给我你的电子邮件ID或回复我Lalit12131@gmail.com 我将把所有文件和详细信息发给你，让我解决这个问题。
请帮助 提前谢谢。
void toDropbox()
{
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String filePath =getApplicationContext().getFilesDir().getPath().toString() + "/DropboxFile1.txt";
File file = new File(filePath);
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();}
FileInputStream inputStream = null;
try {
inputStream = new FileInputStream(file);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Toast.makeText(getBaseContext(), "In clickListener", Toast.LENGTH_SHORT).show();
try {
DropboxAPI.Entry response = mDBApi.putFile("/DropboxFile1.txt", inputStream, file.length(), null, null);
} catch (DropboxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
答案 0 :(得分：1)
This表示您正在获取用户取消关联的例外，因为您需要检查是否正确设置了Dropbox以允许您的应用访问和/或您没有提供设置访问权限时（在Dropbox站点上）提供给您的正确访问令牌对。
“这可能是因为您没有在会话中设置com.dropbox.client2.session.AccessTokenPair，或者因为用户取消了您的应用链接（撤销了访问令牌对）。”
首先转到Dropbox并按照此处的说明操作：Developer Guide并确保您具有设置应用程序权限，并确保用户（您）已允许访问该应用程序（已链接）。您应该获得一个访问密钥和访问密钥，您需要将其放入您的应用程序。 @Hassaan Rabbani提供的答案有一个使用app密钥和秘密令牌对验证您的应用程序的示例。请注意，当您尝试使用其代码时，我确信您必须更改变量
final static private String APP_KEY = "xxxxxxxxx";
final static private String APP_SECRET = "xxxxxxxxx";
给你的令牌对。如果您确实将这些值更改为正确的值，则表示该错误是服务器端，因此请仔细检查我提供的链接的权限。
要获取应用密钥和密码，您需要在Dropbox上设置应用。转到创建新应用并选择：
Dropbox API，文件和数据存储，否，所有文件类型，Your_App_Name
下一页将显示您的密钥。
答案 1 :(得分：0)
使用此代码，你很高兴，删除一些错误，因为我使用此代码上传图像，文本文件和PDF文件。我删除了很多代码，
public class Dropboxupload extends Activity {
private static final String TAG = "Dropbox";
///////////////////////////////////////////////////////////////////////////
// Your app-specific settings. //
///////////////////////////////////////////////////////////////////////////
// Replace this with your app key and secret assigned by Dropbox.
// Note that this is a really insecure way to do this, and you shouldn't
// ship code which contains your key & secret in such an obvious way.
// Obfuscation is good.
final static private String APP_KEY = "xxxxxxxxx";
final static private String APP_SECRET = "xxxxxxxxx";
// If you'd like to change the access type to the full Dropbox instead of
// an app folder, change this value.
final static private AccessType ACCESS_TYPE = AccessType.DROPBOX;
///////////////////////////////////////////////////////////////////////////
// End app-specific settings. //
///////////////////////////////////////////////////////////////////////////
// You don't need to change these, leave them alone.
final static private String ACCOUNT_PREFS_NAME = "prefs";
final static private String ACCESS_KEY_NAME = "ACCESS_KEY";
final static private String ACCESS_SECRET_NAME = "ACCESS_SECRET";
DropboxAPI<AndroidAuthSession> mApi;
private boolean mLoggedIn;
// Android widgets
private Button mSubmit;
private LinearLayout mDisplay;
private Button mPhoto;
private Button mRoulette;
String filename = Scene.name;
private ImageView mImage;
private final String PHOTO_DIR = "/Your directory here/";
final static private int NEW_PICTURE = 1;
private String mCameraFileName;
DatabaseHandler db = new DatabaseHandler(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ActionBar actionBar = getActionBar();
actionBar.setBackgroundDrawable(new ColorDrawable(Color.GREEN));
actionBar.setDisplayShowCustomEnabled(true);
actionBar.setCustomView(R.layout.forsettings);
TextView actiontitle=(TextView)findViewById(R.id.textscene);
actiontitle.setText("Upload");
Button homebutton = (Button)findViewById(R.id.home);
homebutton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
// TODO Auto-generated method stub
view.getContext().startActivity(new Intent(view.getContext().getApplicationContext(),Main.class));
}
});
if (savedInstanceState != null) {
mCameraFileName = savedInstanceState.getString("mCameraFileName");
}
// We create a new AuthSession so that we can use the Dropbox API.
AndroidAuthSession session = buildSession();
mApi = new DropboxAPI<AndroidAuthSession>(session);
// Basic Android widgets
setContentView(R.layout.activity_dropboxupload);
checkAppKeySetup();
mSubmit = (Button)findViewById(R.id.auth_button);
mSubmit.setBackgroundColor(Color.rgb(175, 246, 179));
Button mEmail = (Button)findViewById(R.id.email_button);
mEmail.setBackgroundColor(Color.rgb(175, 246, 179));
mSubmit.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// This logs you out if you're logged in, or vice versa
if (mLoggedIn) {
logOut();
} else {
// Start the remote authentication
mApi.getSession().startAuthentication(Dropboxupload.this);
}
}
});
mSubmit.setVisibility(View.INVISIBLE);
mDisplay = (LinearLayout)findViewById(R.id.logged_in_display);
// This is where a photo is displayed
mImage = (ImageView)findViewById(R.id.image_view);
// Display the proper UI state if logged in or not
setLoggedIn(mApi.getSession().isLinked());
}
@Override
protected void onSaveInstanceState(Bundle outState) {
outState.putString("mCameraFileName", mCameraFileName);
super.onSaveInstanceState(outState);
}
@Override
protected void onResume() {
super.onResume();
AndroidAuthSession session = mApi.getSession();
// The next part must be inserted in the onResume() method of the
// activity from which session.startAuthentication() was called, so
// that Dropbox authentication completes properly.
if (session.authenticationSuccessful()) {
try {
// Mandatory call to complete the auth
session.finishAuthentication();
// Store it locally in our app for later use
TokenPair tokens = session.getAccessTokenPair();
storeKeys(tokens.key, tokens.secret);
setLoggedIn(true);
} catch (IllegalStateException e) {
showToast("Couldn't authenticate with Dropbox:" + e.getLocalizedMessage());
Log.i(TAG, "Error authenticating", e);
}
}
}
// This is what gets called on finishing a media piece to import
public void uploadData() {
String filename = Scene.name;
filename.replaceAll(".txt", "");
filename.replaceAll(".pdf", "");
filename.replaceAll(".fdx", "");
db.getContact(filename);
Contact cn = db.getContact(filename);
String text = cn.getscript();
//// get file path from here
String filePath = getApplicationContext().getFilesDir().getPath().toString() + filename + ".txt";
File file = new File(filePath);
file.canWrite();
FileWriter writer = null;
try {
writer = new FileWriter(file);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
writer.append(text);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
writer.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
writer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
UploadPicture upload = new UploadPicture(this, mApi, PHOTO_DIR, file);
upload.execute();
//v.getContext().startActivity(new Intent(v.getContext().getApplicationContext(),Scene.class));
}
private void logOut() {
// Remove credentials from the session
mApi.getSession().unlink();
// Clear our stored keys
clearKeys();
// Change UI state to display logged out version
setLoggedIn(false);
}
/**
* Convenience function to change UI state based on being logged in
*/
private void setLoggedIn(boolean loggedIn) {
mLoggedIn = loggedIn;
if (loggedIn) {
mSubmit.setText("Unlink from Dropbox");
mSubmit.setVisibility(View.INVISIBLE);
// mDisplay.setVisibility(View.VISIBLE);
} else {
mSubmit.setText("Link with Dropbox");
mDisplay.setVisibility(View.GONE);
mImage.setImageDrawable(null);
}
}
////////////////////
//////// Do not look at functions under this
///////////////////
private void checkAppKeySetup() {
// Check to make sure that we have a valid app key
if (APP_KEY.startsWith("CHANGE") ||
APP_SECRET.startsWith("CHANGE")) {
showToast("You must apply for an app key and secret from developers.dropbox.com, and add them to the Dropbox ap before trying it.");
finish();
return;
}
// Check if the app has set up its manifest properly.
Intent testIntent = new Intent(Intent.ACTION_VIEW);
String scheme = "db-" + APP_KEY;
String uri = scheme + "://" + AuthActivity.AUTH_VERSION + "/test";
testIntent.setData(Uri.parse(uri));
PackageManager pm = getPackageManager();
if (0 == pm.queryIntentActivities(testIntent, 0).size()) {
showToast("URL scheme in your app's " +
"manifest is not set up correctly. You should have a " +
"com.dropbox.client2.android.AuthActivity with the " +
"scheme: " + scheme);
finish();
}
}
private void showToast(String msg) {
Toast error = Toast.makeText(this, msg, Toast.LENGTH_LONG);
error.show();
}
/**
* Shows keeping the access keys returned from Trusted Authenticator in a local
* store, rather than storing user name & password, and re-authenticating each
* time (which is not to be done, ever).
*
* @return Array of [access_key, access_secret], or null if none stored
*/
private String[] getKeys() {
SharedPreferences prefs = getSharedPreferences(ACCOUNT_PREFS_NAME, 0);
String key = prefs.getString(ACCESS_KEY_NAME, null);
String secret = prefs.getString(ACCESS_SECRET_NAME, null);
if (key != null && secret != null) {
String[] ret = new String[2];
ret[0] = key;
ret[1] = secret;
return ret;
} else {
return null;
}
}
/**
* Shows keeping the access keys returned from Trusted Authenticator in a local
* store, rather than storing user name & password, and re-authenticating each
* time (which is not to be done, ever).
*/
private void storeKeys(String key, String secret) {
// Save the access key for later
SharedPreferences prefs = getSharedPreferences(ACCOUNT_PREFS_NAME, 0);
Editor edit = prefs.edit();
edit.putString(ACCESS_KEY_NAME, key);
edit.putString(ACCESS_SECRET_NAME, secret);
edit.commit();
}
private void clearKeys() {
SharedPreferences prefs = getSharedPreferences(ACCOUNT_PREFS_NAME, 0);
Editor edit = prefs.edit();
edit.clear();
edit.commit();
}
private AndroidAuthSession buildSession() {
AppKeyPair appKeyPair = new AppKeyPair(APP_KEY, APP_SECRET);
AndroidAuthSession session;
String[] stored = getKeys();
if (stored != null) {
AccessTokenPair accessToken = new AccessTokenPair(stored[0], stored[1]);
session = new AndroidAuthSession(appKeyPair, ACCESS_TYPE, accessToken);
} else {
session = new AndroidAuthSession(appKeyPair, ACCESS_TYPE);
}
return session;
}
}
答案 2 :(得分：0)
使用Dropbox api，创建mApi对象并使用上传功能
public void uploadFileToDropbox(File file, String uploadPath){
mApi.putFile(uploadPath, new FileInputStream(file), file.length(), null, null);
}