Using Dropbox API to upload a file with Android
Here is another implementation of Dropbox API to upload and download a file. This can be implemented for any type of file.
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(MyActivity.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
I found the solution - if anyone is interested here is the working code:
private DropboxAPI<AndroidAuthSession> mDBApi;//global variable
File tmpFile = new File(fullPath, "IMG_2012-03-12_10-22-09_thumb.jpg");
FileInputStream fis = new FileInputStream(tmpFile);
try {
DropboxAPI.Entry newEntry = mDBApi.putFileOverwrite("IMG_2012-03-12_10-22-09_thumb.jpg", fis, tmpFile.length(), null);
} catch (DropboxUnlinkedException e) {
Log.e("DbExampleLog", "User has unlinked.");
} catch (DropboxException e) {
Log.e("DbExampleLog", "Something went wrong while uploading.");
}