I'm Trying to connect my App in Android to a server I've opened on appengine.
My server's name is : dddd-daniel-2345
and the website for the server is : http://dddd-daniel-2345.appspot.com/
This is how to connect from android app to server in app engine:
app.yaml:
application: dddd-daniel-2345
version: 1
runtime: python27
api_version: 1
threadsafe: yes
handlers:
- url: .*
script: main.app
libraries:
- name: webapp2
version: "2.5.2"
main.py:
#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
from google.appengine.api import users
import webapp2
class UserHandler(webapp2.RequestHandler):
def get(self):
user = users.get_current_user()
if user:
greeting = ('%s,%s,%s' % (user.email(),user.user_id(),user.nickname()))
else:
greeting = ('not logged in')
self.response.out.write(greeting)
app = webapp2.WSGIApplication([('/', UserHandler),], debug=True)
My Applications code :
add to manifast
Main.Activity:
package com.ap2.demo.comunication;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import com.ap2.demo.R;
import com.ap2.demo.SplashActivity;
import org.apache.http.impl.client.DefaultHttpClient;
import java.util.ArrayList;
public class MainActivity extends ActionBarActivity {
AccountManager accountManager;
private Account[] accounts;
Spinner spinner;
DefaultHttpClient httpClient = new DefaultHttpClient();
Account account;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
accountManager = AccountManager.get(getApplicationContext());
// assembling all gmail accounts
accounts = accountManager.getAccountsByType("com.google");
// add all gmail accounts :
ArrayList<String> accountList = new ArrayList<String>();
for (Account account : accounts) {
accountList.add(account.name);
}
// setting spinner to be viewed
spinner = (Spinner) findViewById(R.id.account);
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, accountList);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(dataAdapter);
Button startAuth = (Button) findViewById(R.id.startAuth);
startAuth.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
spinner = (Spinner) findViewById(R.id.account);
account = accounts[spinner.getSelectedItemPosition()];
accountManager.getAuthToken(account, "ah", null, false,
new OnTokenAcquired(httpClient, MainActivity.this), null);
Intent intent = new Intent(MainActivity.this, SplashActivity.class);
startActivity(intent);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
if (resultCode == RESULT_OK) {
accountManager.getAuthToken(account, "ah", null, false,
new OnTokenAcquired(httpClient, MainActivity.this), null);
}
else if(resultCode == RESULT_CANCELED){
// user canceled
}
}
}
OnTokenAcquired:
package com.ap2.demo.comunication;
import android.accounts.AccountManager;
import android.accounts.AccountManagerCallback;
import android.accounts.AccountManagerFuture;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import org.apache.http.impl.client.DefaultHttpClient;
/**
* Created by Daniel on 19-Jun-15.
*/
/*the result for the auth token request is returned to your application
via the Account Manager Callback you specified when making the request.
check the returned bundle if an Intent is stored against the AccountManager.KEY_INTENT key.
if there is an Intent then start the activity using that intent to ask for user permission
otherwise you can retrieve the auth token from the bundle.*/
public class OnTokenAcquired implements AccountManagerCallback<Bundle> {
private static final int USER_PERMISSION = 989;
private static final String APP_ID = "dddd-daniel-2345";
// private static final String APP_ID = "dddd-daniel-1234";
private DefaultHttpClient httpclient;
Activity activity;
public OnTokenAcquired(DefaultHttpClient httpclient, Activity activity)
{
this.httpclient = httpclient;
this.activity = activity;
}
#Override
public void run(AccountManagerFuture<Bundle> result) {
Bundle bundle;
try {
bundle = (Bundle) result.getResult();
if (bundle.containsKey(AccountManager.KEY_INTENT)) {
Intent intent = bundle.getParcelable(AccountManager.KEY_INTENT);
intent.setFlags(intent.getFlags() & ~Intent.FLAG_ACTIVITY_NEW_TASK);
activity.startActivityForResult(intent, USER_PERMISSION);
} else {
setAuthToken(bundle);
}
}
catch(Exception e){
e.printStackTrace();
}
}
//using the auth token and ask for a auth cookie
protected void setAuthToken(Bundle bundle) {
String authToken = bundle.getString(AccountManager.KEY_AUTHTOKEN);
new GetCookie(httpclient, APP_ID, activity.getBaseContext()).execute(authToken);
}
}
GetCookie:
package com.ap2.demo.comunication;
import android.content.Context;
import android.os.AsyncTask;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.params.ClientPNames;
import org.apache.http.cookie.Cookie;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpParams;
import java.io.ByteArrayOutputStream;
/**
* Created by Daniel on 19-Jun-15.
*/
public class GetCookie extends AsyncTask<String, Void, Boolean> {
String appId;
HttpParams params;
private HttpResponse response;
// private static final String LINK_TO_GET_AUTHENTICATED = "http://dddd-daniel-2345.appspot.com/";
private static final String LINK_TO_GET_AUTHENTICATED = "http://dddd-daniel-2345.appspot.com/";
//private static final String LINK_TO_GET_AUTHENTICATED = "http://dddd-daniel-1234.appspot.com/";
Context context;
private DefaultHttpClient httpclient;
public GetCookie(DefaultHttpClient httpclient, String appId, Context context)
{
this.httpclient = httpclient;
params = httpclient.getParams();
this.appId = appId;
this.context = context;
}
protected Boolean doInBackground(String... tokens) {
try {
// Don't follow redirects
params.setBooleanParameter(ClientPNames.HANDLE_REDIRECTS, false);
HttpGet httpGet = new HttpGet("http://" + appId
+ ".appspot.com/_ah/login?continue=http://" + appId + ".appspot.com/&auth=" + tokens[0]);
response = httpclient.execute(httpGet);
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
if(response.getStatusLine().getStatusCode() != 302){
// Response should be a redirect
return false;
}
//check if we received the ACSID or the SACSID cookie, depends on http or https request
for(Cookie cookie : httpclient.getCookieStore().getCookies()) {
if(cookie.getName().equals("ACSID") || cookie.getName().equals("SACSID")){
return true;
}
}
} catch (Exception e) {
e.printStackTrace();
cancel(true);
} finally {
params.setBooleanParameter(ClientPNames.HANDLE_REDIRECTS, true);
}
return false;
}
protected void onPostExecute(Boolean result)
{
new Auth(httpclient, context).execute(LINK_TO_GET_AUTHENTICATED);
}
}
Auth:
package com.ap2.demo.comunication;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.StatusLine;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import java.io.ByteArrayOutputStream;
/**
* Created by Daniel on 19-Jun-15.
*/
public class Auth extends AsyncTask<String, Void, Boolean> {
private DefaultHttpClient httpclient;
private HttpResponse response;
private String content = null;
Context context;
public Auth(DefaultHttpClient httpclient, Context context)
{
this.httpclient = httpclient;
this.context = context;
}
protected Boolean doInBackground(String... urls) {
try {
HttpGet httpGet = new HttpGet(urls[0]);
response = httpclient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
if(statusLine.getStatusCode() == HttpStatus.SC_OK){
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
content = out.toString();
return true;
}
} catch (Exception e) {
e.printStackTrace();
cancel(true);
}
return false;
}
//display the response from the request above
protected void onPostExecute(Boolean result) {
Toast.makeText(context, "Response from request: " + content,
Toast.LENGTH_LONG).show();
}
}
activity_main.xml:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="#dimen/activity_vertical_margin">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="10dp"
android:text="#string/choose_account"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textStyle="bold" />
<Spinner android:id="#+id/account"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/textView1" />
<Button
android:id="#+id/startAuth"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/account"
android:layout_marginTop="10dp"
android:text="#string/send_button" />
</RelativeLayout>
Whenever I'm running the app it shows me the correct Toast.
Related
I am working on an application that would send an image with 2 strings but I am not as experienced in this field so i was lost for the last day or two trying to figure this out as i started with a script but didn't work for me
here is the part of script that i worked on which has a bit PHP behind and just show an image in my activity once it's chosen form the gallery with a bit of logic that i understood but didn't really work for me
that's my java code :
package com.example.tuteur;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Base64;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
public class ajouter_photo extends AppCompatActivity implements View.OnClickListener {
ImageView upload_img;
EditText img_text;
EditText img_titre;
Button img_but;
private static final int result_load_img = 1;
private static final String server = "http://192.168.1.3/pfe/saveImg.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ajouter_photo);
upload_img=findViewById(R.id.photo_upload);
img_but=findViewById(R.id.upload_button);
img_text=findViewById(R.id.upload_text_corps);
img_titre=findViewById(R.id.upload_text_title);
upload_img.setOnClickListener(this);
img_but.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId())
{
case(R.id.photo_upload):
Intent galleryIntent = new Intent(Intent.ACTION_PICK,MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent,result_load_img);
break;
case(R.id.upload_button):
Bitmap image =((BitmapDrawable) upload_img.getDrawable()).getBitmap();
new uploadimg(img_text.getText().toString(),image,img_titre.getText().toString());
break;
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if( requestCode==result_load_img && resultCode==RESULT_OK && data != null){
Uri selectedimg = data.getData();
upload_img.setImageURI(selectedimg);
}
}
private class uploadimg extends AsyncTask<Void , Void , Void> {
String text;
Bitmap image;
String titre;
public uploadimg(String text, Bitmap image,String titre) {
this.text = text;
this.image = image;
this.titre=titre;
}
#Override
protected Void doInBackground(Void ... params) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.JPEG, 100,byteArrayOutputStream);
String encodedImage = Base64.encodeToString(byteArrayOutputStream.toByteArray(),Base64.DEFAULT);
ArrayList<NameValuePair> dataToSend = new ArrayList<>();
dataToSend.add(new BasicNameValuePair("text",text));
dataToSend.add(new BasicNameValuePair("image",encodedImage));
dataToSend.add(new BasicNameValuePair("titre",titre));
HttpParams httpRequest = getHttpRequestParams();
HttpClient client = new DefaultHttpClient(httpRequest);
HttpPost post =new HttpPost(server);
try {
post.setEntity(new UrlEncodedFormEntity(dataToSend));
client.execute(post);
}
catch(Exception e)
{
Toast.makeText(getApplicationContext(),"erreur" , Toast.LENGTH_SHORT).show();
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
Toast.makeText(getApplicationContext(),"L'image est envoyé",Toast.LENGTH_SHORT).show();
}
}
private HttpParams getHttpRequestParams()
{
HttpParams httpRequestParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpRequestParams,1000*30);
HttpConnectionParams.setSoTimeout(httpRequestParams,1000*30);
return httpRequestParams;
}
}
and this is my PHP which just store my image in the server not a data base it was test before I would try with blob
<?php
$name = $_POST["text"];
$image=$_POST["image"];
$decodedImage = base64_decode("$image");
file_put_contents("pictures". $name . ".PNG" , $decodedImage);
?>
I am using below code and my textview links are clickable but i want to make specific button of whatsapp and facebook for sharing..i referred several article in stackoverflow but i want for textview. for webview i had earlier done and it was easy .please help /suggest for textview sharing. i dont want all buttons to open. i want after each listview one facebook and whatsapp icon. on click whatsapp should open with text to be shared
in textview i am adding below for whatsapp share but nothing happens
<a rel="nofollow" href="whatsapp://send?text=एक वृद्ध दंपति को लगने लगा कि उनकी क वृद्ध दंपति को लगने लगा कि उनकी याददाश्त कमजोर हो चली है। यह सुनिश्चित करने के लिये कि उन्हें कुछ नही%0A."><span class="whatsapp"> </span></a>
my java code is
tried adding this one also in java but no benefit.
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.setPackage("com.whatsapp");
if (intent != null) {
intent.putExtra(Intent.EXTRA_TEXT, msg);
startActivity(Intent.createChooser(intent, ""));
main.java code here
package com.hindishayari.funnywall.activity;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Typeface;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;
import com.google.android.gms.analytics.HitBuilders;
import com.google.android.gms.analytics.Tracker;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import com.hindishayari.funnywall.R;
import com.hindishayari.funnywall.adapter.SwipeDownListAdapter;
import com.hindishayari.funnywall.analytics.AnalyticsApplication;
public class MainActivity extends Activity implements SwipeRefreshLayout.OnRefreshListener {
// URLS for Fetching and Submitting to Funny Wall.
private String FetchFunnyWallURL = "http://xxxxxxxxxxxx.com/AndroidFunnyWallApp/ppppppppp.php";
private String SubmitJokeToWallURL = "http://xxxxxxxxxxxx.com/AndroidFunnyWallApp/hhhhhhhhhh.php";
private InterstitialAd mInterstitialAd;
private SwipeRefreshLayout swipeRefreshLayout;
private ListView listView;
private SwipeDownListAdapter adapter;
private ArrayList<String> jokesList;
private ArrayList<String> timeDateList;
String JokeString = null;
String []dataValues = new String[2];
int counter = 0;
TextView titleTextView;
AlertDialog alertDw;
AlertDialog.Builder builder;
Typeface font;
LinearLayout adViewLayout;
LinearLayout listViewLayout;
private Tracker mTracker;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
AnalyticsApplication application = (AnalyticsApplication) getApplication();
mTracker = application.getDefaultTracker();
font = Typeface.createFromAsset(getAssets(), "HelveticaNeue-Regular.ttf");
titleTextView = (TextView) findViewById(R.id.titleID);
adViewLayout = (LinearLayout) findViewById(R.id.adViewLayoutID);
listViewLayout = (LinearLayout) findViewById(R.id.ListViewLinearLayout);
titleTextView.setTypeface(font);
dataValues[0] = "";
dataValues[1] = "";
listView = (ListView) findViewById(R.id.listView);
swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_refresh_layout);
jokesList = new ArrayList<>();
timeDateList = new ArrayList<>();
adapter = new SwipeDownListAdapter(this, jokesList, timeDateList);
listView.setAdapter(adapter);
swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.post(new Runnable() {
#Override
public void run() {
swipeRefreshLayout.setRefreshing(true);
jokesList.clear();
timeDateList.clear();
new FetchFunnyWallFromServer().execute(FetchFunnyWallURL);
}
}
);
/*
This function is to refresh the List with Swipe-Down
*/
#Override
public void onRefresh() {
jokesList.clear();
timeDateList.clear();
new FetchFunnyWallFromServer().execute(FetchFunnyWallURL);
}
#Override
protected void onResume() {
super.onResume();
}
/*
This function is to fetch all the jokes + dates from the server and store that into the jokesList
timeDateLis respectively
*/
private class FetchFunnyWallFromServer extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
// params comes from the execute() call: params[0] is the url.
try {
return FetchFunnyWall(urls[0]);
} catch (IOException e) {
return "Sorry, We cannot retrieve credits data form the server at this moment.";
}
}
#Override
protected void onPreExecute() {
super.onPreExecute();
listView.setEnabled(false);
dataValues[0] = "";
dataValues[1] = "";
counter = 0;
jokesList.clear();
timeDateList.clear();
}
// onPostExecute displays the results of the AsyncTask.
#Override
protected void onPostExecute(String result) {
swipeRefreshLayout.setRefreshing(false);
listView.setEnabled(true);
if (result.equals("OK")) {
listView.post(new Runnable() {
#Override
public void run() {
Collections.reverse(jokesList);
Collections.reverse(timeDateList);
adapter.notifyDataSetChanged();
listView.smoothScrollToPosition(0);
}
});
}
else
{
Toast.makeText(getApplicationContext(), "Network Connection Problem. Make sure that your internet is properly connected", Toast.LENGTH_SHORT).show();
}
}
}
private String FetchFunnyWall(String myurl) throws IOException, UnsupportedEncodingException {
InputStream is = null;
try {
URL url = new URL(myurl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setUseCaches(false);
conn.setDefaultUseCaches(false);
conn.addRequestProperty("Cache-Control", "no-cache");
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
is = conn.getInputStream();
BufferedReader textReader = new BufferedReader(new InputStreamReader(is));
String readlineText;
while ((readlineText = textReader.readLine()) != null) {
if (readlineText.length() > 0 )
{
if (readlineText.equals("****")) {
continue;
}
if (readlineText.length() < 4) {
continue;
}
for (int i = 0; i < readlineText.length(); ++i) {
if (readlineText.charAt(i) == '|') {
++counter;
continue;
}
dataValues[counter] = (dataValues[counter] + readlineText.charAt(i));
}
jokesList.add(dataValues[0]);
timeDateList.add(dataValues[1]);
counter = 0;
dataValues[0] = "";
dataValues[1] = "";
}
}
}
}
}
any help will be great
While working on a project I'm getting this error
Error : method gettext() must be call from UI thread is worker
on the following line :
String url = Util.send_chat_url+"?email_id="+editText_mail_id.getText().toString()+"&message="+editText_chat_message.getText().toString();
Please Help
This is my entire code for the class ChatActivity.java
package com.example.ankit.myapplication;
import android.app.Activity;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.support.annotation.NonNull;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import com.example.ankit.myapplication.XmppService;
import com.squareup.okhttp.OkHttpClient;
import org.jivesoftware.smack.packet.Message;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Scanner;
//import services.XmppService;
public class ChatActivity extends Activity {
EditText editText_mail_id;
EditText editText_chat_message;
ListView listView_chat_messages;
Button button_send_chat;
List<ChatObject> chat_list;
BroadcastReceiver recieve_chat;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_chat);
Scanner in = new Scanner(System.in);
XmppService xm= new XmppService();
Log.d("pavan","in chat "+getIntent().getStringExtra("user_id"));
Log.d("pavan","in chat server "+Util.SERVER);
XmppService.setupAndConnect(ChatActivity.this, Util.SERVER, "",
getIntent().getStringExtra("user_id"), Util.XMPP_PASSWORD);
editText_mail_id= (EditText) findViewById(R.id.editText_mail_id);
editText_chat_message= (EditText) findViewById(R.id.editText_chat_message);
listView_chat_messages= (ListView) findViewById(R.id.listView_chat_messages);
button_send_chat= (Button) findViewById(R.id.button_send_chat);
button_send_chat.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// send chat message to server
String message=editText_chat_message.getText().toString();
showChat("sent",message);
// new SendMessage().execute();
XmppService.sendMessage(ChatActivity.this, editText_mail_id.getText().toString() + Util.SUFFIX_CHAT, Message.Type.chat, message);
editText_chat_message.setText("");
}
});
recieve_chat=new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
String message=intent.getStringExtra("message");
Log.d("pavan","in local braod "+message);
showChat("recieve",message);
}
};
LocalBroadcastManager.getInstance(this).registerReceiver(recieve_chat, new IntentFilter("message_recieved"));
}
private void showChat(String type, String message){
if(chat_list==null || chat_list.size()==0){
chat_list= new ArrayList<ChatObject>();
}
chat_list.add(new ChatObject(message,type));
ChatAdabter chatAdabter=new ChatAdabter(ChatActivity.this,R.layout.chat_view,chat_list);
listView_chat_messages.setAdapter(chatAdabter);
//chatAdabter.notifyDataSetChanged();
}
#Override
protected void onDestroy() {
super.onDestroy();
}
private class SendMessage extends AsyncTask<String, Void, String> {
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
}
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
String url = Util.send_chat_url+"?email_id="+editText_mail_id.getText().toString()+"&message="+editText_chat_message.getText().toString();
Log.i("pavan", "url" + url);
OkHttpClient client_for_getMyFriends = new OkHttpClient();
String response = null;
// String response=Utility.callhttpRequest(url);
try {
url = url.replace(" ", "%20");
response = callOkHttpRequest(new URL(url),
client_for_getMyFriends);
for (String subString : response.split("<script", 2)) {
response = subString;
break;
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return response;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
//Toast.makeText(context,"response "+result,Toast.LENGTH_LONG).show();
}
}
// Http request using OkHttpClient
String callOkHttpRequest(URL url, OkHttpClient tempClient)
throws IOException {
HttpURLConnection connection = tempClient.open(url);
connection.setConnectTimeout(40000);
InputStream in = null;
try {
// Read the response.
in = connection.getInputStream();
byte[] response = readFully(in);
return new String(response, "UTF-8");
} finally {
if (in != null)
in.close();
}
}
byte[] readFully(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
for (int count; (count = in.read(buffer)) != -1;) {
out.write(buffer, 0, count);
}
return out.toByteArray();
}
}
Do not access the Android UI toolkit from outside the UI thread
Pass editText_mail_id.getText() and editText_chat_message.getText() as parameters to your async task or set it in onPreExecute to some variable
Like :
private class SendMessage extends AsyncTask<String, Void, String> {
private String mailId;
private String msgText;
#Override
protected void onPreExecute() {
super.onPreExecute();
mailId = editText_mail_id.getText().toString();
msgText = editText_chat_message.getText().toString();
}
Change url in doInBackground as :
String url = Util.send_chat_url+"?email_id="+mailId+"&message="+msgText;
you can create class for storing your parameter like i do,
Just create one class
example :
public class MyTaskParams
{
String mailId;
String message;
public MyTaskParams(String mailId, String message)
{
this.mailId = mailId;
this.message = message;
}
}
public class SendMessage extends AsyncTask<MyTaskParams, Void, String {
#Override
protected String doInBackground(MyTaskParams... params) {
String mailId = params[0].mailId;
String message = params[0].message;
String url = Util.send_chat_url+"?email_id="+ mailId +"&message="+ message;
}
}
so you can just call like this
MyTaskParams params = new MyTaskParams(editText_mail_id.getText().toString(),editText_chat_message.getText().toString());
SendMessage myTask = new SendMessage();
myTask.execute(params);
with this code you can call SendMessage Class from any activity, dont bind your asynctask with get text because if you do that you just can use SendMessage only in that activity
Hope this can help you.
First i have downloaded twitter4j-3.0.3 and put its .jar files into libs folder of my eclipse app.After that i create an app on https://dev.twitter.com/ and get all the credentials needed and gave callback url as https://google.co.in
Now my code is as follows
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.User;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class TwitterSampleActivity extends Activity {
private static final String CONSUMER_KEY = "xxxxxxxxxxxxxxxxxxxxxxxxx";
private static final String CONSUMER_SECRET = "xxxxxxxxxxxxxxxxxxx";
private static final String CALLBACK = "https://google.co.in";
private String OAuthToken;
private String OAuthSecret;
private boolean isLogged;
private static Twitter twitter;
private static RequestToken requestToken;
private Button loginButton;
private Button logoutButton;
private Button sendStatus;
private EditText status;
private TextView userName;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_twitter);
loginButton = (Button) findViewById(R.id.twitter_log_in);
logoutButton = (Button) findViewById(R.id.twitter_log_out);
sendStatus = (Button) findViewById(R.id.twitter_send);
status = (EditText) findViewById(R.id.twitter_text);
userName = (TextView) findViewById(R.id.twitter_username);
loginButton.setVisibility(View.VISIBLE);
userName.setVisibility(View.GONE);
sendStatus.setVisibility(View.GONE);
status.setVisibility(View.GONE);
logoutButton.setVisibility(View.GONE);
Uri uri = getIntent().getData();
if(uri!=null && uri.toString().startsWith(CALLBACK)) {
String verifier = uri.getQueryParameter("oauth_verifier");
try {
AccessToken token = twitter.getOAuthAccessToken(requestToken, verifier);
OAuthToken = token.getToken();
OAuthSecret = token.getTokenSecret();
isLogged = true;
loginButton.setVisibility(View.GONE);
userName.setVisibility(View.VISIBLE);
sendStatus.setVisibility(View.VISIBLE);
status.setVisibility(View.VISIBLE);
logoutButton.setVisibility(View.VISIBLE);
User user = twitter.showUser(token.getUserId());
String username = user.getName();
userName.setText("Logged as: " + username);
} catch (Exception e) {
Log.e("Login error: ", e.getMessage());
}
}
}
public void onLogInClicked(View v) {
if(!isLogged) {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(CONSUMER_KEY);
builder.setOAuthConsumerSecret(CONSUMER_SECRET);
Configuration config = builder.build();
TwitterFactory factory = new TwitterFactory(config);
twitter = factory.getInstance();
try {
requestToken = twitter.getOAuthRequestToken(CALLBACK);
this.startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse(requestToken.getAuthenticationURL())));
} catch (TwitterException e) {
e.printStackTrace();
}
} else {
Toast.makeText(this, "Already logged", Toast.LENGTH_LONG).show();
}
}
public void onLogOutclicked(View v) {
OAuthToken = "";
OAuthSecret = "";
isLogged = false;
loginButton.setVisibility(View.VISIBLE);
userName.setVisibility(View.GONE);
userName.setText("");
sendStatus.setVisibility(View.GONE);
status.setVisibility(View.GONE);
logoutButton.setVisibility(View.GONE);
}
public void onSendClicked(View v) {
String text = status.getText().toString();
if(text.length()>0) {
new SendTwitterStatusUpdate(this, CONSUMER_KEY, CONSUMER_SECRET,
OAuthToken, OAuthSecret).execute(text);
} else {
Toast.makeText(this, "Enter some text" , Toast.LENGTH_SHORT).show();
}
}
}
and my activity_twitter.xml file is
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/twitter_log_in"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="twitter log in"
android:onClick="onLogInClicked" />
<TextView
android:id="#+id/twitter_username"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<EditText
android:id="#+id/twitter_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="text" />
<Button
android:id="#+id/twitter_send"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="twitter send"
android:onClick="onSendClicked" />
<Button
android:id="#+id/twitter_log_out"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="twitter log_out"
android:onClick="onLogOutClicked" />
</LinearLayout>
and SendTwitterStatusUpdate.java file is
import twitter4j.Twitter;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.conf.ConfigurationBuilder;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
public class SendTwitterStatusUpdate extends AsyncTask<String, Void, Boolean>{
private Context context;
private String consumerKey;
private String consumerSecret;
private String accessToken;
private String accessTokenSecret;
public SendTwitterStatusUpdate(Context context, String consumerKey, String consumerSecret, String accessToken,String accessTokenSecret) {
this.context=context;
this.consumerKey=consumerKey;
this.consumerSecret=consumerSecret;
this.accessToken=accessToken;
this.accessTokenSecret=accessTokenSecret;
}
#Override
protected Boolean doInBackground(String... params) {
String status = params[0];
if(status!=null) {
try {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(consumerKey);
builder.setOAuthConsumerSecret(consumerSecret);
AccessToken token = new AccessToken(accessToken, accessTokenSecret);
Twitter twitter = new TwitterFactory(builder.build()).getInstance(token);
twitter.updateStatus(status);
return true;
} catch (Exception e) {
e.printStackTrace();
}
}
return false;
}
#Override
public void onPostExecute(Boolean result) {
if(result) {
Toast.makeText(context, "Status successfully updated", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(context, "Status not updated", Toast.LENGTH_LONG).show();
}
}
Now when i run my application i got this window
and apart from that when i am clicking on that button twitter log in ...that button is not working..need help
}
can anyone tell me why i am getting null on Uri uri = getIntent().getData();...uri object value is null..thus this part is not executing
if(uri!=null && uri.toString().startsWith(CALLBACK)) {
String verifier = uri.getQueryParameter("oauth_verifier");
try {
AccessToken token = twitter.getOAuthAccessToken(requestToken, verifier);
OAuthToken = token.getToken();
OAuthSecret = token.getTokenSecret();
isLogged = true;
loginButton.setVisibility(View.GONE);
userName.setVisibility(View.VISIBLE);
sendStatus.setVisibility(View.VISIBLE);
status.setVisibility(View.VISIBLE);
logoutButton.setVisibility(View.VISIBLE);
User user = twitter.showUser(token.getUserId());
String username = user.getName();
userName.setText("Logged as: " + username);
} catch (Exception e) {
Log.e("Login error: ", e.getMessage());
}
}
Check out this Demo links , you will get idea how it works and then try to implement own
you can download both
you have to just create your Twitter app.That is also explain by blogger.Follow them you will get two keys.
TWITTER_CONSUMER_KEY="**********************";
TWITTER_CONSUMER_SECRET="********************";
Replace inside your activity and run your project.
First Example
Second Example
Enjoy.!!!
I need to show toast message when the server is not responding
when I press the login button, some parameters are passed to AgAppMenu screen which use url connection to server and get xml response in AgAppHelperMethods screen. The
probelm is when the server is busy or the network is not avaibale, I can't show toast message on catch block although it shows the log message.
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Intent ;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class LoginScreen extends Activity implements OnClickListener {
EditText mobile;
EditText pin;
Button btnLogin;
Button btnClear;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.agapplogin);
TextView lblMobileNo = (TextView) findViewById(R.id.lblMobileNo);
lblMobileNo.setTextColor(getResources()
.getColor(R.color.text_color_red));
mobile = (EditText) findViewById(R.id.txtMobileNo);
TextView lblPinNo = (TextView) findViewById(R.id.lblPinNo);
lblPinNo.setTextColor(getResources().getColor(R.color.text_color_red));
pin = (EditText) findViewById(R.id.txtPinNo);
btnLogin = (Button) findViewById(R.id.btnLogin);
btnClear = (Button) findViewById(R.id.btnClear);
btnLogin.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
postLoginData();
}
});
btnClear.setOnClickListener(new OnClickListener() {
public void onClick(View v)
{
cleartext();
}
});
/*
*
* btnClear.setOnClickListener(new OnClickListener() { public void
* onClick(View arg0) {
*
* } });
*/
}
public void postLoginData()
{
if (pin.getTextSize() == 0 || mobile.getTextSize() == 0) {
AlertDialog.Builder altDialog = new AlertDialog.Builder(this);
altDialog.setMessage("Please Enter Complete Information!");
} else {
Intent i = new Intent(this.getApplicationContext(), AgAppMenu.class);
Bundle bundle = new Bundle();
bundle.putString("mno", mobile.getText().toString());
bundle.putString("pinno", pin.getText().toString());
i.putExtras(bundle);
startActivity(i);
}
}
#Override
public void onClick(View v) {
}
public void cleartext() {
{
pin.setText("");
mobile.setText("");
}
}
}
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class AgAppMenu extends Activity {
String mno, pinno;
private String[][] xmlRespone;
Button btnMiniStatement;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.agappmenu);
mno = getIntent().getExtras().getString("mno");
pinno = getIntent().getExtras().getString("pinno");
setTitle("Welcome to the Ag App Menu");
AgAppHelperMethods agapp =new AgAppHelperMethods();
// xmlRespone = AgAppHelperMethods.AgAppXMLParser("AG_IT_App/AgMainServlet?messageType=LOG&pin=" + pinno + "&mobile=" + mno + "&source=" + mno + "&channel=INTERNET");
xmlRespone = agapp.AgAppXMLParser("AG_IT_App/AgMainServlet?messageType=LOG&pin=" + pinno + "&mobile=" + mno + "&source=" + mno + "&channel=INTERNET");
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import android.view.View;
import android.view.View.OnKeyListener;
public class AgAppHelperMethods extends Activity {
private static final String LOG_TAG = null;
private static AgAppHelperMethods instance = null;
public static String varMobileNo;
public static String varPinNo;
String[][] xmlRespone = null;
boolean flag = true;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.agapphelpermethods);
}
protected AgAppHelperMethods() {
}
public static AgAppHelperMethods getInstance() {
if (instance == null) {
instance = new AgAppHelperMethods();
}
return instance;
}
public static String getUrl() {
String url = "https://demo.accessgroup.mobi/";
return url;
}
public String[][] AgAppXMLParser(String parUrl) {
String _node, _element;
String[][] xmlRespone = null;
try {
String url = AgAppHelperMethods.getUrl() + parUrl;
URL finalUrl = new URL(url);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(finalUrl.openStream()));
doc.getDocumentElement().normalize();
NodeList list = doc.getElementsByTagName("*");
_node = new String();
_element = new String();
xmlRespone = new String[list.getLength()][2];
// this "for" loop is used to parse through the
// XML document and extract all elements and their
// value, so they can be displayed on the device
for (int i = 0; i < list.getLength(); i++) {
Node value = list.item(i).getChildNodes().item(0);
_node = list.item(i).getNodeName();
_element = value.getNodeValue();
xmlRespone[i][0] = _node;
xmlRespone[i][1] = _element;
}// end for
throw new ArrayIndexOutOfBoundsException();
}// end try
// will catch any exception thrown by the XML parser
catch (Exception e) {
Toast.makeText(AgAppHelperMethods.this,
"error server not responding " + e.getMessage(),
Toast.LENGTH_SHORT).show();
Log.e(LOG_TAG, "CONNECTION ERROR FUNDAMO SERVER NOT RESPONDING", e);
}
// Log.e(LOG_TAG, "CONNECTION ERROR FUNDAMO SERVER NOT RESPONDING", e);
return xmlRespone;
}
`
AgAppHelperMethods isn't really an Activity. You've derived this class from Activity, but then you've created Singleton management methods (getInstance()) and you are instantiating it yourself. This is bad. Don't do this.
Normally Android controls the instantiation of activities. You don't ever create one yourself (with new).
It looks to me like AgAppHelperMethods just needs to be a regular Java class. It doesn't need to inherit from anything. Remove also the lifecycle methods like onCreate().
Now you will have a problem with the toast, because you need a context for that and AgAppHelperMethods isn't a Context. To solve that you can add Context as a parameter to AgAppXMLParser() like this:
public String[][] AgAppXMLParser(Context context, String parUrl) {
...
// Now you can use "context" to create your toast.
}
When you call AgAppXMLParser() from AgAppMenu just pass "this" as the context parameter.