问题
I need to upload photo on checkin using FourSquare.If anybody has done it,Please help me in passing parameters.I have referred FourSquare Offical Document : https://developer.foursquare.com/docs/photos/add. I am facing issue in Last three parameters. Please Help me if you have done it.Thank You in Advance...
回答1:
The parameters postUrl, postContentId, and postText are optional, so you do not need to provide them. postUrl and postContentId are used to provide a link that your photo can link to for more information. postText is a short comment about the photo.
回答2:
/* * put foursquare sdk file into projects libs folder and the later code into the Activity file */
todaydate = Latest Date;
venueId = The Venue Id is important.
URL = The image url from which the image will be downloaded to sd card;
foursquare = new Foursquare(
"Your Client Id", //*client id
"Your Client Secret", //*client secret
"Callback Url");
foursquare.authorize(ActivityName.this, new FoursquareAuthenDialogListener());
// Creates Bitmap from InputStream and returns it
private Bitmap downloadImage(String url) {
Bitmap bitmap = null;
InputStream stream = null;
BitmapFactory.Options bmOptions = new BitmapFactory.Options();
bmOptions.inSampleSize = 1;
try {
stream = getHttpConnection(url);
bitmap = BitmapFactory.decodeStream(stream, null, bmOptions);
stream.close();
} catch (IOException e1) {
e1.printStackTrace();
}
return bitmap;
}
// Makes HttpURLConnection and returns InputStream
private InputStream getHttpConnection(String urlString)
throws IOException {
InputStream stream = null;
URL url = new URL(urlString);
URLConnection connection = url.openConnection();
try {
HttpURLConnection httpConnection = (HttpURLConnection) connection;
httpConnection.setRequestMethod("GET");
httpConnection.connect();
if (httpConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
stream = httpConnection.getInputStream();
}
} catch (Exception ex) {
ex.printStackTrace();
}
return stream;
}
@SuppressLint("SdCardPath")
private class FoursquareAuthenDialogListener implements DialogListener {
@Override
public void onComplete(Bundle values) {
foursquareAccessToken = Foursquare.mAccessToken;
//Toast.makeText(getApplicationContext(), "TOKEN: " + foursquareAccessToken, Toast.LENGTH_LONG).show();
new downloadUploadedImage().execute();
}
@Override
public void onFoursquareError(FoursquareError e) {
// TODO Auto-generated method stub
}
@Override
public void onError(DialogError e) {
// TODO Auto-generated method stub
}
@Override
public void onCancel() {
// TODO Auto-generated method stub
}
}
/*
* downloadUploadedImage Class will download image from url and convert to bitmap image,
* using that bitmap image then convert it to file and get the file path from sd card
* to upload image to fs from sdcard.
*/
public class downloadUploadedImage extends AsyncTask<String, Void, String>{
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = ProgressDialog.show(MyActivityName.this, "", "Posting Image to Foursquare...", true);
}
@Override
protected String doInBackground(String... params) {
bitMapImage = downloadImage(URL);
writeExternalToCache(bitMapImage, file);
return null;
}
@Override
protected void onPostExecute(String result){
super.onPostExecute(result);
if(file.exists()){
//Toast.makeText(getApplicationContext(), "PIC PATH: " + file.toString(), Toast.LENGTH_LONG).show();
//Toast.makeText(getApplicationContext(), "PIC PATH: " + picPATH, Toast.LENGTH_LONG).show();
picturePath = file.toString();
BitmapFactory.Options options=new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(picturePath,options);
final int REQUIRED_SIZE=200;
//Find the correct scale value. It should be the power of 2.
int scale=1;
while(options.outWidth/scale/2>=REQUIRED_SIZE && options.outHeight/scale/2>=REQUIRED_SIZE)
scale*=2;
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize=scale;
preview_bitmap = BitmapFactory.decodeFile(picturePath,o2);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
preview_bitmap.compress(CompressFormat.JPEG, 75, bos);
fileContent = bos.toByteArray(); //byte array static byte[] fileContent;
new UploadImageToFsProfile().execute();
} else {
//Toast.makeText(getApplicationContext(), "Image not exist in sdcard.", Toast.LENGTH_LONG).show();
}
}
}
public class UploadImageToFsProfile extends AsyncTask<String, Void, String>{//params,progress,result
@Override
protected void onPreExecute(){
super.onPreExecute();
}
@SuppressWarnings("deprecation")
@Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("https://api.foursquare.com/v2/photos/add");
try
{
@SuppressWarnings("deprecation")
/*
* To use MultipartEntity class use httpclient-X.x.jar , httpcore-X.x.jar ,httpmime-X.x.jar
* and apachemime4jcore-X.x.jar
*/
MultipartEntity entity = new MultipartEntity();
entity.addPart("v", new StringBody(todaydate));
entity.addPart("venueId", new StringBody(venueId));
entity.addPart("public", new StringBody("1"));
entity.addPart("oauth_token", new StringBody(foursquareAccessToken));
ByteArrayBody imgBody = new ByteArrayBody(ChFsLogin.fileContent, "image/jpeg", "FS_image");
entity.addPart("image",imgBody);
httppost.setEntity(entity);
HttpResponse response = httpclient.execute(httppost);
responseResult = inputStreamToString(response.getEntity().getContent()).toString();
}
catch (ClientProtocolException e)
{ }
catch (IOException e)
{ }
return responseResult;
}
@Override
protected void onPostExecute(String result){
super.onPostExecute(result);
dialog.dismiss();
System.out.println("RES"+responseResult);
JSONObject obj;
try {
obj = new JSONObject(result);
//JSONArray meta =
obj = obj.getJSONObject("meta");
code = obj.getInt("code");
if(obj.has("errorDetail")){
Toast.makeText(getApplicationContext(), obj.getString("errorDetail"), Toast.LENGTH_LONG).show();
}
//Toast.makeText(getApplicationContext(), "code:"+code, Toast.LENGTH_LONG).show();
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
if (code ==200) {
Toast.makeText(getApplicationContext(), "Your Image Has Successfully Posted to FourSquare.", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(), "Unable to Post Image to FourSquare.", Toast.LENGTH_LONG).show();
}
File fileToDelete = new File(file.toString());
boolean deleted = fileToDelete.delete();
if (deleted) {
} else {
}
}
private StringBuilder inputStreamToString(InputStream is) {
String rLine = "";
StringBuilder answer = new StringBuilder();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
try {
while ((rLine = rd.readLine()) != null) {
answer.append(rLine);
}
}
catch (IOException e) {
e.printStackTrace();
}
return answer;
}
}
回答3:
I successfully uploaded the images to Foursquare via the code below:
mBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] bitmapdata = stream.toByteArray();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("https://api.foursquare.com/v2/photos/add");
try
{
MultipartEntity entity = new MultipartEntity();
entity.addPart("v", new StringBody("20121210"));
entity.addPart("venueId", new StringBody(venue.getId()));
entity.addPart("public", new StringBody("1"));
entity.addPart("oauth_token", new StringBody(mAccessToken));
ByteArrayBody imgBody = new ByteArrayBody(bitmapdata, "image/jpeg", "FS_image");
entity.addPart("image",imgBody);
httppost.setEntity(entity);
HttpResponse response = httpclient.execute(httppost);
Log.v("response","" +response);
responseResult = inputStreamToString(response.getEntity().getContent()).toString();
}
catch (ClientProtocolException e)
{
Log.d(TAG, "Opening URL " +e);
}
来源：https://stackoverflow.com/questions/13795109/foursquare-photo-upload-on-checkin-with-android