Develop Reference

android 4.3 - BufferedReader shows Please Wait message

I have the following function to allow my android app to communicate with a web server. However the app shows a 'Please Wait' message when I call this code and only disappears if a new activity loads in or if I press the back button. Where is the Please wait coming from and how can I avoid it appearing? Thanks
package util.sapa.sapacontainermanager5;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
public class SimpleWebCalls {
public String executeHttpGet(String serverIP, String nvp) {
String lines="";
serverIP="???????????";
URL url = null;
try {
url = new URL("http://" + serverIP + "/WCF.aspx?" + nvp);
HttpURLConnection conn = null;
try {
conn = (HttpURLConnection) url.openConnection();
try {
conn.setRequestMethod("GET");
BufferedReader in = null;
try {
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
lines+=line;
}
in.close();
return lines;
} catch (IOException e) {
e.printStackTrace();
}
} catch (ProtocolException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (MalformedURLException e) {
e.printStackTrace();
}
return "";
}
}
the above class is called from:
public String GetDataFromServer(String serverIP,String nvp) {
SimpleWebCalls tWebCall = new SimpleWebCalls();
String sReturn="";
sReturn= tWebCall.executeHttpGet(serverIP,nvp);
return sReturn;
}
the above function is called from:
String data="";
data="doAction=location&u=" + sess.getUserName()+
"&p=" + sess.getPwd() +
"&uid=" + sess.getUserID() +
"&lf=" + sess.encodeStr(editScannedCode.getText().toString());
result = sess.GetDataFromServer(serverIP,data);

follow this tutorial link it might be helpful to you.
add GetDataFromServer() method in to your doInBackground() method.

Inserting the data in to the local server from android Application

I have developed an application which uses GCM notifications, i have successfully registered the device with GCM, and retrieved regId, now i want to send this ID to my server.
i am using this code to send the regId:
package com.example.gcm;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import android.content.Context;
import android.util.Log;
public class ShareExternalServer {
public String shareRegIdWithAppServer(final Context context,
final String regId) {
String result = "";
Map<String, String> paramsMap = new HashMap<String, String>();
paramsMap.put("regId", regId);
try {
URL serverUrl = null;
try {
serverUrl = new URL(Config.APP_SERVER_URL);
} catch (MalformedURLException e) {
Log.e("AppUtil", "URL Connection Error: "
+ Config.APP_SERVER_URL, e);
result = "Invalid URL: " + Config.APP_SERVER_URL;
}
StringBuilder postBody = new StringBuilder();
Iterator<Entry<String, String>> iterator = paramsMap.entrySet()
.iterator();
while (iterator.hasNext()) {
Entry<String, String> param = iterator.next();
postBody.append(param.getKey()).append('=')
.append(param.getValue());
if (iterator.hasNext()) {
postBody.append('&');
}
}
String body = postBody.toString();
byte[] bytes = body.getBytes();
HttpURLConnection httpCon = null;
try {
httpCon = (HttpURLConnection) serverUrl.openConnection();
httpCon.setDoOutput(true);
httpCon.setUseCaches(false);
httpCon.setFixedLengthStreamingMode(bytes.length);
httpCon.setRequestMethod("POST");
httpCon.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;charset=UTF-8");
OutputStream out = httpCon.getOutputStream();
out.write(bytes);
out.close();
int status = httpCon.getResponseCode();
if (status == 200) {
result = "RegId shared with Application Server. RegId: "
+ regId;
} else {
result = "Post new one1 Failure." + " Status: " + regId;
}
} finally {
if (httpCon != null) {
httpCon.disconnect();
}
}
} catch (IOException e) {
result = "Post Failure 33 . Error in sharing with App Server."+regId;
Log.e("AppUtil", "Error in sharing with App Server: " + e);
}
return result;
}
}

How to resolve android.os.networkonmainthreadexception

I am new to android and I am trying to read data from a server. I use a util and call that util like this
private void ParseSource(String Url){
String source = new Cls_SourceGrabber().grabSource(Url);
}
But I am getting a android.os.networkonmainthreadexception. How can I reduce that?
My SourceGrabber util:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
public class Cls_SourceGrabber {
private HttpGet mRequest;
private HttpClient mClient;
private BufferedReader mReader;
private StringBuffer mBuffer;
private String mNewLine;
public Cls_SourceGrabber() {
mRequest = new HttpGet();
InitializeClient();
mReader = null;
mBuffer = new StringBuffer(10000);
mNewLine = System.getProperty("line.separator");
}
private void InitializeClient() {
if (mClient == null || mClient.getConnectionManager() == null) {
HttpParams httpParameters = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpParameters, 4500);
HttpConnectionParams.setSoTimeout(httpParameters, 10000);
// HttpConnectionParams.setTcpNoDelay(httpParameters, true);
mClient = new DefaultHttpClient(httpParameters);
}
}
/*
*Grab the full source
*/
public String grabSource(String url) {
mBuffer.setLength(0);
InitializeClient();
String source = "";
try {
mRequest.setURI(new URI(url));
HttpResponse response = mClient.execute(mRequest);
mReader = new BufferedReader(new InputStreamReader(response
.getEntity().getContent()));
String line = "";
while ((line = mReader.readLine()) != null) {
mBuffer.append(line);
mBuffer.append(mNewLine);
source = mBuffer.toString();
if (Thread.interrupted()) {
break;
}
}
} catch (ConnectTimeoutException e) {
source = "Connection Timed Out.";
} catch (java.net.UnknownHostException e) {
source = "No Internet Connection available!";
} catch (java.lang.ArrayIndexOutOfBoundsException e) {
source = "Site Parsing Exception.";
} catch (ClientProtocolException e) {
source = "Protocol Exception.";
} catch (IOException e) {
source = "Server not responding.";
} catch (URISyntaxException e) {
source = "Wrong URL!";
} catch (Exception e) {
source = "Exception - " + e.toString() + " - "
+ e.getMessage();
e.printStackTrace();
} finally {
closeReader();
}
return source;
}
}

First of all, I would not recommend on using HTTPClient any more, since it is not supported any more from sdk version 23.
So, it will be better to migrate the network operations to URL Connection.
Now, android never allows network operations on Main thread since it will block the UI thread for a considerable time, hence may cause crash or bad user experience.
You can take a look on these docs : Doc 1
The better way to do Network operations is by creating an AsyncTask.
Just take care not to access any UI thread element in the doInBackground method. You can modify UI Thread elements on onPreExecute or onPostExecute Methods.
I have created a NetworkOps Util. You can take a look on that, whether it may be any use for you :
import android.content.Context;
import android.net.Uri;
import android.util.Log;
import com.csehelper.variables.Constants;
import com.csehelper.variables.Keys;
import com.csehelper.variables.Url;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.ProtocolException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.util.ArrayList;
public class NetworkOps {
public final String EXCEPTION = "~Exception~";
/****************************
* Method to Grab Source
****************************/
public static String GrabSource(String URL) {
return PostData(URL, null);
}
/**
* *****************************************
* Method to Grab Source code from URL
* Posting Data
* *****************************************
*/
private static String PostData(String url, Uri.Builder uribuilder) {
String Source;
HttpURLConnection.setFollowRedirects(false);
HttpURLConnection urlConnection = null;
try {
urlConnection = (HttpURLConnection) new URL(url).openConnection();
urlConnection.setDoOutput(true);
urlConnection.setConnectTimeout(10000);
if(uribuilder != null) {
String query = uribuilder.build().getEncodedQuery();
OutputStream os = urlConnection.getOutputStream();
BufferedWriter writer = new BufferedWriter(
new OutputStreamWriter(os, "UTF-8"));
writer.write(query);
writer.flush();
writer.close();
os.close();
}
urlConnection.connect();
if (urlConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
String line;
StringBuilder builder = new StringBuilder();
InputStreamReader isr = new InputStreamReader(
urlConnection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
while ((line = reader.readLine()) != null) {
builder.append(line);
}
Source = builder.toString();
} else {
Source = EXCEPTION + "Server unreachable. Check network connection.";
}
} catch (SocketTimeoutException e) {
Source = EXCEPTION + "Connection timed out.";
} catch (java.net.UnknownHostException e) {
Source = EXCEPTION + Constants.EXCEPTION_NO_NET;
} catch (ArrayIndexOutOfBoundsException e) {
Source = EXCEPTION + "Server error";
} catch (ProtocolException e) {
Source = EXCEPTION + "Protocol error";
} catch (IOException e) {
Source = EXCEPTION + "Server unreachable. Check network connection.";
} catch (Exception e) {
Source = EXCEPTION + "Error:" + e.toString() + " - "
+ e.getMessage();
e.printStackTrace();
} finally {
if (urlConnection != null) urlConnection.disconnect();
}
return Source;
}
}
Call these Static Functions from AsyncTask:
/*********************************
* AsyncTask to GrabSource
********************************/
class AsyncTask_GrabSource extends AsyncTask<Void, Void, Void> {
String Source = null;
String url = "https://enigmatic-woodland-35608.herokuapp.com/pager.json";
#Override
protected void onPreExecute() {
//Runs on Main Thread. You can access your UI elements here.
}
#Override
protected Void doInBackground(Void... params) {
// Don't access any UI elements from this function
Source = NetworkOps.GrabSource(this.url);
return null;
}
#Override
protected void onPostExecute(Void result) {
if (Source != null) {
if (!Source.contains("~Exception~")) {
//Show Error Message or do whatever you want
} else {
//Do Whatever with your Grabbed Sourcecode.
// This function runs on UI Thread, so you can update UI elements here
}
}
}
You can also post data with the function PostData. In method doInBackground, add this:
Uri.Builder builder = new Uri.Builder()
.appendQueryParameter("key", "value")
.appendQueryParameter("key2", "value2");
Source = NetworkOps.PostData(getApplicationContext(), url, builder);

Android applications can't upload photos to the server

I want to do an App. It can realize to upload the phone picture to server. Now it can take the picture and save to the mobile phone. But it can not upload into server. How to deal with this? The server is using tomcat to setup.
Android upload code:
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class uploadActivity extends Activity
{
private Button uploadbutton;
private String uploadFile = Environment.getExternalStorageDirectory().getAbsolutePath()+"/Test.jpg";
private String srcPath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/Test.jpg";
private String actionUrl = "http://192.168.1.105:8080/ATestInternetCameraServlet/";
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo);
uploadbutton=(Button)findViewById(R.id.button2);
uploadbutton.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
uploadFile();
}
});
}
private void uploadFile()
{ String uploadUrl = "http://192.168.1.105:8080/ATestInternetCameraServlet/CameraServlet";
String end = "\r\n";
String twoHyphens = "--";
String boundary = "******";
try
{
URL url = new URL(uploadUrl);
HttpURLConnection httpURLConnection = (HttpURLConnection) url
.openConnection();
httpURLConnection.setDoInput(true);
httpURLConnection.setDoOutput(true);
httpURLConnection.setUseCaches(false);
httpURLConnection.setRequestMethod("POST");
httpURLConnection.setRequestProperty("Connection", "Keep-Alive");
httpURLConnection.setRequestProperty("Charset", "UTF-8");
httpURLConnection.setRequestProperty("Content-Type",
"multipart/form-data;boundary=" + boundary);
DataOutputStream dos = new DataOutputStream(httpURLConnection
.getOutputStream());
dos.writeBytes(twoHyphens + boundary + end);
dos
.writeBytes("Content-Disposition: form-data; name=\"file\"; filename=\""
+ srcPath.substring(srcPath.lastIndexOf("/") + 1)
+ "\"" + end);
dos.writeBytes(end);
FileInputStream fis = new FileInputStream(srcPath);
byte[] buffer = new byte[8192]; // 8k
int count = 0;
while ((count = fis.read(buffer)) != -1)
{
dos.write(buffer, 0, count);
}
fis.close();
dos.writeBytes(end);
dos.writeBytes(twoHyphens + boundary + twoHyphens + end);
dos.flush();
InputStream is = httpURLConnection.getInputStream();
InputStreamReader isr = new InputStreamReader(is, "utf-8");
BufferedReader br = new BufferedReader(isr);
String result = br.readLine();
Toast.makeText(this, result, Toast.LENGTH_LONG).show();//
dos.close();
is.close();
} catch (Exception e)
{
e.printStackTrace();
setTitle(e.getMessage());
}
}
}
The server code:
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class CameraServlet extends HttpServlet
{
protected void service(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
{
try
{
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
PrintWriter out2 = response.getWriter();
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List<FileItem> items = upload.parseRequest(request);
String uploadPath = "d:\\cameraupload\\";
File file = new File(uploadPath);
if (!file.exists())
{
file.mkdir();
}
String filename = "";
InputStream is = null;
for (FileItem item : items)
{
if (item.isFormField())
{
if (item.getFieldName().equals("filename"))
{
if (!item.getString().equals(""))
filename = item.getString("UTF-8");
}
}
else if (item.getName() != null && !item.getName().equals(""))
{
filename = item.getName().substring(
item.getName().lastIndexOf("\\") + 1);
is = item.getInputStream(); // 得到上传文件的InputStream对象
}
}
filename = uploadPath + filename;
if (new File(filename).exists())
{
new File(filename).delete();
}
// Began to upload files
if (!filename.equals(""))
{
// use FileOutputStream to open the upload file in server
FileOutputStream fos2 = new FileOutputStream(filename);
byte[] buffer = new byte[8192];
int count = 0;
// Began to read the upload file in bytes，and input it to server's upload file output stream
while ((count = is.read(buffer)) > 0)
{
fos2.write(buffer, 0, count); // To write the byte stream server files
}
fos2.close(); // close FileOutputStream object
is.close(); // InputStream object
out2.println("file upload success!xii");
}
}
catch (Exception e)
{
}
}
}

Do you have any error tracing?? Our just happening nothing??
For using httpurlconnection, you need to change the policy at the beginning:
ThreadPolicy mThreadPolicy = new ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(mThreadPolicy);
Try this.

Isn't 192.168.1.105 an IP-adress on the local network? Are you sure it's reachable from your phone? Open your phone's browser and try to navigate to the URL, can you reach it?
At what end are you having problems with the upload? Client or server? If it's on the client, what error are you getting? Or is it silently failing? Have you tried to make a simple HTML form and do the upload from there? If that is working you know it's your Android code that is the problem?
Also, it hurts every time I see someone trying to implement file uploads on their own. I'm not saying that your code is wrong, but it's an awful lot of lines of code (thus more risk of errors) compared to if you'd use a 3rd party library to abstract away all of that code for you. A well known and popular library such as Android Asynchronous Http Client has good support for file uploads out of the box:
AsyncHttpClient client = new AsyncHttpClient();
String filename = "file.png";
File myFile = new File("/path/to/" + filename);
RequestParams params = new RequestParams();
try {
params.put("file", myFile);
params.put("filename", filename);
client.post("http://192.168.1.105:8080/ATestInternetCameraServlet/CameraServlet", params, responseHandler);
}
catch(FileNotFoundException e) {
// handle
}

Try this...add apache-mime4j-0.6.jar and httpmime-4.0.3.jar libs
File f=new File(exsistingFileName);
HttpClient http = new DefaultHttpClient();
HttpPost post = new HttpPost("http://192.168.1.105:8080/ATestInternetCameraServlet/CameraServlet");
MultipartEntity Mentity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
String url1=exsistingFileName;
String mime;
String extension = MimeTypeMap.getFileExtensionFromUrl(url1);
if (extension != ""&&extension!=null) {
MimeTypeMap mime1 = MimeTypeMap.getSingleton();
mime = mime1.getMimeTypeFromExtension(extension);
}
else
{
String ext = url1.substring((url1.lastIndexOf(".") + 1), url1.length());
MimeTypeMap mime1 = MimeTypeMap.getSingleton();
mime = mime1.getMimeTypeFromExtension(ext);
}
ContentBody cbFile;
if(mime!=null)
cbFile= new FileBody(f,mime);
else
cbFile=new FileBody(f);
Mentity.addPart("file",cbFile);
post.setEntity(Mentity);
HttpResponse response = null;
try {
response = http.execute(post);
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
responseString = new BasicResponseHandler().
handleResponse(response);
} catch (HttpResponseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (entity != null) {
System.out.println("Response content length: " + entity.getContentLength());
}

post image in Instagram

Question : In my app I need to post image in Instagram just like FB or Twitter.
What I have already done : Login and fetched photographs from the Instagram to my own app. But not getting any way for image posting in Instagram.

Yet it is not possible to post image in Instagram like FB or twitter.
But this is another way to achieve this using already installed Instagram and if not this will notify user to download app .
public void onClick(View v) {
Intent intent = getPackageManager().getLaunchIntentForPackage("com.instagram.android");
if (intent != null)
{
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.setPackage("com.instagram.android");
try {
shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), imagePath, "I am Happy", "Share happy !")));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
shareIntent.setType("image/jpeg");
startActivity(shareIntent);
}
else
{
// bring user to the market to download the app.
// or let them choose an app?
intent = new Intent(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setData(Uri.parse("market://details?id="+"com.instagram.android"));
startActivity(intent);
}
}

No, you can't. Quoted from Instagram API docs :
At this time, uploading via the API is not possible. We made a conscious choice not to add this for the following reasons:
Instagram is about your life on the go – we hope to encourage photos from within the app. However, in the future we may give whitelist access to individual apps on a case by case basis.
We want to fight spam & low quality photos. Once we allow uploading from other sources, it's harder to control what comes into the Instagram ecosystem. All this being said, we're working on ways to ensure users have a consistent and high-quality experience on our platform.
UPDATE: However, if you're working on iOS (though you tagged Android), there is a way to "send" a photo (in fact, it opens the image in Instagram) via Custom URL Scheme. See this.

Try this link :
You can use this class to upload image to instagram.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.HttpCookie;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Date;
import java.util.List;
import java.util.Map;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.net.ssl.HttpsURLConnection;
import org.apache.commons.codec.binary.Hex;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
public class InstagramPostHelper {
private static InstagramPostHelper instance = null;
protected InstagramPostHelper() {}
public static InstagramPostHelper getInstance() {
if (instance == null) {
instance = new InstagramPostHelper();
}
return instance;
}
private String GenerateSignature(String value, String key)
{
String result = null;
try {
byte[] keyBytes = key.getBytes();
SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA256");
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(signingKey);
byte[] rawHmac = mac.doFinal(value.getBytes());
byte[] hexBytes = new Hex().encode(rawHmac);
result = new String(hexBytes, "UTF-8");
}
catch (Exception e) {
}
return result;
}
private static final String COOKIES_HEADER = "Set-Cookie";
public static java.net.CookieManager msCookieManager = new java.net.CookieManager();
private HttpsURLConnection conn;
private static String TextUtilsJoin(CharSequence delimiter, List<HttpCookie> list) {
StringBuilder sb = new StringBuilder();
boolean firstTime = true;
for (Object token: list) {
if (token.toString().trim().length()<1) continue;
if (firstTime) {
firstTime = false;
} else {
sb.append(delimiter + " ");
}
sb.append(token);
}
return sb.toString();
}
private String GetJSONStringAndPostData(String jsonaddress,String postdata,String agent)
{
String sonuc = "";
try {
byte[] postDataBytes = postdata.toString().getBytes("UTF-8");
URL url = new URL(jsonaddress);
conn = (HttpsURLConnection) url.openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Length", String.valueOf(postDataBytes.length));
conn.setRequestProperty("User-Agent", agent);
//Set Cookies
if(msCookieManager.getCookieStore().getCookies().size() > 0)
{
conn.setRequestProperty("Cookie", TextUtilsJoin(";", msCookieManager.getCookieStore().getCookies()));
}
conn.setDoOutput(true);
conn.getOutputStream().write(postDataBytes);
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
//Get Cookies
Map<String, List<String>> headerFields = conn.getHeaderFields();
List<String> cookiesHeader = headerFields.get(COOKIES_HEADER);
if(cookiesHeader != null)
{
for (String cookie : cookiesHeader)
{
msCookieManager.getCookieStore().add(null,HttpCookie.parse(cookie).get(0));
}
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
while ((output = br.readLine()) != null) {
sonuc += output;
}
conn.disconnect();
} catch (MalformedURLException e) {
return "";
} catch (IOException e) {
return "";
}
return sonuc;
}
public void SendImage(String Caption,byte[] ImageByteArray) throws UnsupportedEncodingException, ParseException
{
String Agent = "Instagram 6.21.2 Android (19/4.4.2; 480dpi; 1152x1920; Meizu; MX4; mx4; mt6595; en_US)";
String Guid = java.util.UUID.randomUUID().toString();
String DeviceId = "android-" + Guid;
String Data = "{\"device_id\":\"" + DeviceId + "\",\"guid\":\"" + Guid + "\",\"username\":\"MYUSERNAME\",\"password\":\"MYPASSWORD\",\"Content-Type\":\"application/x-www-form-urlencoded; charset=UTF-8\"}";
String Sig = GenerateSignature(Data, "25eace5393646842f0d0c3fb2ac7d3cfa15c052436ee86b5406a8433f54d24a5");
Data = "signed_body=" + Sig + "." + URLEncoder.encode(Data, "UTF-8") + "&ig_sig_key_version=4";
if (msCookieManager.getCookieStore()!= null)
{
msCookieManager.getCookieStore().removeAll();
}
//Login Request
String login = GetJSONStringAndPostData("https://instagram.com/api/v1/accounts/login/", Data,Agent);
JSONParser parser = new JSONParser();
Object obj = parser.parse(login);
JSONObject jsonObject = (JSONObject) obj;
if (((String) jsonObject.get("status")).equals("ok")) //Login SuccessFul
{
//Login Successful
System.out.println("Login Successful !");
//Post Image
String upload = "";
try {
final HttpMultipartHelper http = new HttpMultipartHelper(new URL("https://instagram.com/api/v1/media/upload/"));
http.addFormField("device_timestamp", Long.toString((new Date()).getTime()));
http.addFilePart("photo", ImageByteArray);
final byte[] bytes = http.finish();
upload = new String(bytes);
} catch (IOException e) {
e.printStackTrace();
}
System.out.println(upload);
obj = parser.parse(upload);
jsonObject = (JSONObject) obj;
if (((String) jsonObject.get("status")).equals("ok")) //Login SuccessFul
{
String mediaID = (String) jsonObject.get("media_id");
Data = "{\"device_id\":\"" + DeviceId + "\",\"guid\":\"" + Guid + "\",\"media_id\":\"" + mediaID + "\",\"caption\":\"" + Caption + "\",\"device_timestamp\":\"" + Long.toString((new Date()).getTime()).substring(0,10) + "\",\"source_type\":\"5\",\"filter_type\":\"0\",\"extra\":\"{}\",\"Content-Type\":\"application/x-www-form-urlencoded; charset=UTF-8\"}";
Sig = GenerateSignature(Data, "25eace5393646842f0d0c3fb2ac7d3cfa15c052436ee86b5406a8433f54d24a5");
Data = "signed_body=" + Sig + "." + URLEncoder.encode(Data, "UTF-8") + "&ig_sig_key_version=6";
//Login Request
System.out.println(Data);
String result = GetJSONStringAndPostData("https://instagram.com/api/v1/media/configure/", Data,Agent);
System.out.println(result);
}
}
else //Login UnsuccessFul
{
System.out.println("Login Unsuccessful !" + login);
}
}
}
https://gist.github.com/ecdundar/d5b6bdcc2035448fc9cd

It seems we're now able to do it, for more you can check official docs here

Try this
public void ShareInsta() {
File dir = new File(Environment.getExternalStorageDirectory(), "FolderName");
File imgFile = new File(dir, "0.png");
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.setType("image/*");
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + imgFile));
sendIntent.putExtra(Intent.EXTRA_TEXT, "<---MY TEXT--->.");
sendIntent.setPackage("com.instagram.android");
sendIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
try {
startActivity(Intent.createChooser(sendIntent, "Share images..."));
} catch (android.content.ActivityNotFoundException ex) {
Toast.makeText(SaveAndShareActivity.this, "Please Install Instagram", Toast.LENGTH_LONG).show();
}
}