How to Implement Dropbox in android ?I have implemented the API successfully but it still not working

Question

If anyone having the sample program then please provide here it is necessary for implement in our project.

I am new to Android Technology that's I am facing problem.If anybody required the code then I will provide here.

Thanks in advance.

Answer 1

Try this,

String file_name = "/my_file.txt";
String file_path = Environment.getExternalStorageDirectory()
        .getAbsolutePath() + file_name;
AndroidAuthSession session;

public void initDropBox() {

    AppKeyPair appKeys = new AppKeyPair(APP_KEY, APP_SECRET);
    session = new AndroidAuthSession(appKeys);
    mDBApi = new DropboxAPI<AndroidAuthSession>(session);
    mDBApi.getSession().startOAuth2Authentication(ChatActivity.this);

}

Entry response;

public void uploadFile() {
    writeFileContent(file_path);
    File file = new File(file_path);
    FileInputStream inputStream = null;
    try {
        inputStream = new FileInputStream(file);
    } catch (FileNotFoundException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }


    try {
        response = mDBApi.putFile("/my_file.txt", inputStream,
                file.length(), null, null);
        Log.i("DbExampleLog", "The uploaded file's rev is: " + response.rev);
    } catch (DropboxException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();

    }

}
public void downloadFile() {

    File file = new File(file_path);
    FileOutputStream outputStream = null;

    try {
        outputStream = new FileOutputStream(file);
    } catch (FileNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    DropboxFileInfo info = null;
    try {
        info = mDBApi.getFile("/my_file.txt", null, outputStream, null);



        Log.i("DbExampleLog", "The file's rev is: "
                + info.getMetadata().rev);
    } catch (DropboxException e) {
        // TODO Auto-generated catch block

        e.printStackTrace();
    }

}

@Override
    protected void onResume() {
        // TODO Auto-generated method stub
        super.onResume();
        if (mDBApi.getSession().authenticationSuccessful()) {
            try {
                // Required to complete auth, sets the access token on the
                // session

                mDBApi.getSession().finishAuthentication();

            String accessToken = mDBApi.getSession().getOAuth2AccessToken();

            /**
             * You'll need this token again after your app closes, so it's
             * important to save it for future access (though it's not shown
             * here). If you don't, the user will have to re-authenticate
             * every time they use your app. A common way to implement
             * storing keys is through Android's SharedPreferences API.
             */

        } catch (IllegalStateException e) {
            Log.i("DbAuthLog", "Error authenticating", e);
        }
    }
}

->Call uploadFile(...) and downLoadFile(...) method in child thread otherwise it will give you Exception ->For that use AsyncTask and call these above method in doInBackground(...) method .

hope,this will be helpful.Thanks