Develop Reference

I would like to insert data to phpmyadmin from my android device

At the moment I can add users into the database through postman or emulator but I need to be able insert the data from actual android device .What adjustments do I have to take ? Please have a look at the code below
This is my main activity that I using in my app :
package ie.example.artur.adminapp;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.util.HashMap;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class MainActivity extends AppCompatActivity {
EditText editTextName,editTextEmail,editTextPassword;
TextView textView;
private static final String DB_URL = "jdbc:mysql://10.3.2.51/socialmedia_website";
private static final String USER = "zzz";
private static final String PASS = "zzz";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
findViewById(R.id.layoutProgress).setVisibility(View.GONE);
textView = (TextView) findViewById(R.id.textView);
editTextName = (EditText) findViewById(R.id.editTextName);
editTextEmail = (EditText) findViewById(R.id.editTextEmail);
editTextPassword = (EditText) findViewById(R.id.editTextPassword);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
}
public void btnConn(View view) {
findViewById(R.id.layoutProgress).setVisibility(View.VISIBLE);
final ApiClient apiClient = new ApiClient();
String email = editTextEmail.getText().toString();
String name = editTextName.getText().toString();
String password = editTextPassword.getText().toString();
HashMap<String,String> parameters = new HashMap<>();
parameters.put("email",email);
parameters.put("name",name);
parameters.put("password",password);
Call<ApiResponse> call = apiClient.loginUser(parameters);
call.enqueue(new Callback<ApiResponse>() {
#Override
public void onResponse(Call<ApiResponse> call, Response<ApiResponse> response) {
if(response.isSuccessful())
{
ApiResponse apiResponse = response.body();
if(apiResponse.getStatus() == 200 || apiResponse.getStatus() == 201)
{
findViewById(R.id.layoutProgress).setVisibility(View.GONE);
Send objSend = new Send();
objSend.execute("");
//Toast.makeText(MainActivity.this,"Success", Toast.LENGTH_SHORT);
textView.setText("Success.");
}
else
{
//Toast.makeText(MainActivity.this,apiResponse.getErrors(), Toast.LENGTH_SHORT);
textView.setText(apiResponse.getErrors());
}
}
else
{
findViewById(R.id.layoutProgress).setVisibility(View.GONE);
//Toast.makeText(MainActivity.this,"Invalid api response.", Toast.LENGTH_SHORT);
textView.setText("Invalid api response.");
}
}
#Override
public void onFailure(Call<ApiResponse> call, Throwable t) {
findViewById(R.id.layoutProgress).setVisibility(View.GONE);
//Toast.makeText(MainActivity.this,"No host available or please check network connectivity.", Toast.LENGTH_SHORT);
textView.setText("No host available or please check network connectivity.");
}
});
}
private class Send extends AsyncTask<String, String, String>
{
String msg = "";
String name = editTextName.getText().toString();
String email = editTextEmail.getText().toString();
String password = editTextPassword.getText().toString();
#Override
protected void onPreExecute() {
textView.setText("Please Wait Inserting Data");
}
#Override
protected String doInBackground(String... strings) {
try {
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);
if (conn == null) {
msg = "Connection goes wrong";
} else {
String query = "Insert INTO users (name,email,password) VALUES('" + name+"','"+email+"','"+password+"')";
Statement stmt = conn.createStatement();
stmt.executeUpdate(query);
msg = "Inserting Successful!!";
}
conn.close();
}
catch(
Exception e
)
{
msg = "Connection goes Wrong";
e.printStackTrace();
}
return msg;
}
#Override
protected void onPostExecute(String msg) {textView.setText(msg);}
}
}
Api client class
package ie.example.artur.adminapp;
import java.util.HashMap;
import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Call;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;
/**
* Created by asifj on 7/25/2017.
*/
public class ApiClient
{
private String BASE_URL = BuildConfig.BASE_URL;
ApiEndPoints apiService;
public ApiClient() {
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
logging.setLevel(HttpLoggingInterceptor.Level.BODY);
httpClient.addInterceptor(logging); // <-- this is the important line!
Retrofit retrofit = new Retrofit.Builder().baseUrl(BASE_URL).addConverterFactory(GsonConverterFactory.create()).client(httpClient.build()).build();
apiService = retrofit.create(ApiEndPoints.class);
}
public Call<ApiResponse> loginUser(HashMap<String, String> parameters)
{
return apiService.usercreate(parameters);
}
}
If you need me to share any more class please let me know in the comments

//this is a class you'll call in you main activity
public class PostRequest extends AsyncTask<Void, Void, String> {
private String parameters;
private Context context;
public PostRequest(Context context) {
this.context = context;
Log.d("PostRequest", "Context set : " + context);
}
public void setParameters(String parameters) {
this.parameters = parameters;
Log.d("PostRequest", "Parameters set : " + parameters);
}
#Override
protected String doInBackground(Void... params) {
String response = null;
try {
URL url = new URL("url of your php script");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestMethod("POST");
OutputStreamWriter request = new OutputStreamWriter(connection.getOutputStream());
request.write(parameters);
request.flush();
request.close();
String line = "";
InputStreamReader isr = new InputStreamReader(connection.getInputStream());
BufferedReader reader = new BufferedReader(isr);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
response = sb.toString();
isr.close();
reader.close();
} catch (IOException e) {
// Error
}
return response;
}
#Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
}
}
//in your main activity you'll call it like so
PostRequest postRequest = new PostRequest(getContext());
postRequest.setParameters("param1=" + "param1value" + "&param2=" + "param2value");
postRequest.execute();

Data is not inserting into database of webhost from android

My data is not inserting to database of webhost.
Here is my ActionActivity.java from where I will send data to the database.
import android.app.Activity;
import android.content.Context;
import android.provider.Settings;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import java.io.InputStream;
public class ActionActivity extends Activity {
private String t;
TextView timer;
EditText e1,e2;
Button save;
static InputStream is = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_action);
Bundle time = getIntent().getExtras();
t = (String) time.get("com.example.masba.timemanagement.MESSAGE");
e1 = (EditText) findViewById(R.id.editText);
e1.setText(t, TextView.BufferType.EDITABLE);
e2 = (EditText) findViewById(R.id.editText2);
save = (Button) findViewById(R.id.save);
}
public void insert(View view){
String actionName = e1.getText().toString();
String time = e2.getText().toString();
Toast.makeText(this, "Data Inserting...", Toast.LENGTH_SHORT).show();
new SignupActivity(this).execute(actionName, time);
e1.setText("");
e2.setText("");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Now my SignupActivity.java Which extends Asynctask.
import android.content.Context;
import android.os.AsyncTask;
import android.widget.Toast;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class SignupActivity extends AsyncTask<String, Void, String> {
private Context context;
public SignupActivity(Context context) {
this.context = context;
}
protected void onPreExecute() {
}
#Override
protected String doInBackground(String... arg0) {
String actionName = arg0[0];
String time = arg0[1];
String link;
String data;
BufferedReader bufferedReader;
String result;
try {
data = "?actioname=" + URLEncoder.encode(actionName, "UTF-8");
data += "&time=" + URLEncoder.encode(time, "UTF-8");
link = "http://masumalmasba.comli.com/insertdata.php" + data;
URL url = new URL(link);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
result = bufferedReader.readLine();
return result;
} catch (Exception e) {
return new String("Exception: " + e.getMessage());
}
}
#Override
protected void onPostExecute(String result) {
String jsonStr = result;
if (jsonStr != null) {
try {
JSONObject jsonObj = new JSONObject(jsonStr);
String query_result = jsonObj.getString("query_result");
if (query_result.equals("SUCCESS")) {
Toast.makeText(context, "Data inserted successfully.", Toast.LENGTH_SHORT).show();
} else if (query_result.equals("FAILURE")) {
Toast.makeText(context, "Data could not be inserted.", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(context, "Couldn't connect to remote database.", Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(context, "Error parsing JSON data.", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(context, "Couldn't get any JSON data.", Toast.LENGTH_SHORT).show();
}
}
}
Now my insertdata.php code is:
<?php
$servername="mysql6.000webhost.com";
$username = "a1871724_masum";
$password = "almasba012";
$dbname = "a1871724_actiont";
$conn = new mysqli($servername , $username , $password , $dbname);
if($conn->connect_error)
{
die("Connection Failed: ".$conn->connect_error);
}
$action = $_GET['actionname'];
$time = $_GET['time'];
$sql = "INSERT INTO actiontime (name,time) VALUES ('($action)','($time)')";
if($conn->query($sql)===TRUE){
echo "New record created succesfully";
}
else{
echo "Error";
mysql_close($conn);
}
?>

How do i connect mysql database and insert data into it using android code

I have mysql database on my hosting server
On simple android application I have feedback form and on submit I want to insert data into mysql database which is on server .
I tried google and found this following solution for local machine
how do I connect to my hosting server and mysql database without any php code?
public void insert()
{
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("id",id));
nameValuePairs.add(new BasicNameValuePair("name",name));
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.2.2/insert.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
Log.e("pass 1", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 1", e.toString());
Toast.makeText(getApplicationContext(), "Invalid IP Address",
Toast.LENGTH_LONG).show();
}
try
{
BufferedReader reader = new BufferedReader
(new InputStreamReader(is,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
result = sb.toString();
Log.e("pass 2", "connection success ");
}
catch(Exception e)
{
Log.e("Fail 2", e.toString());
}
try
{
JSONObject json_data = new JSONObject(result);
code=(json_data.getInt("code"));
if(code==1)
{
Toast.makeText(getBaseContext(), "Inserted Successfully",
Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(getBaseContext(), "Sorry, Try Again",
Toast.LENGTH_LONG).show();
}
}
catch(Exception e)
{
Log.e("Fail 3", e.toString());
}
}

Here
HttpPost httppost = new HttpPost("http://10.0.2.2/insert.php");
insert.php is mentioned means you have to put this file on server
just change the http://10.0.2.2/insert.php to the path of your server file path where the file is stored
Code for insert.php
// this variables is used for connecting to database and server
$host="yourhost";
$uname="username";
$pwd='pass';
$db="dbname";
// this is for connecting
$con = mysql_connect($host,$uname,$pwd) or die("connection failed");
mysql_select_db($db,$con) or die("db selection failed");
// getting id and name from the client
if(isset($_REQUEST)){
$id=$_REQUEST['id'];
$name=$_REQUEST['name'];}
// variable used to tell the client whether data is stored in database or not
$flag['code']=0;
// for insertion
if($r=mysql_query("insert into emp_info values('$name','$id') ",$con))
{
//if insertion succeed set code to 1
$flag['code']=1;
echo"hi";
}
// send result to client that will be 1 or 0
print(json_encode($flag));
//close
mysql_close($con);
?>
as mentioned in your code , this will get the value from server whether the data is stored or not by code=1 for stored and code = 0 for not stored
JSONObject json_data = new JSONObject(result);
code=(json_data.getInt("code"));
if(code==1)
{
Toast.makeText(getBaseContext(), "Inserted Successfully",
Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(getBaseContext(), "Sorry, Try Again",
Toast.LENGTH_LONG).show();
}

package fluent.techno.shreedurgajyotish;
import java.util.ArrayList;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import fluentindia.database.mysql.JsonHelper;
import fluentindia.tech.MenuAdapter.ProductAdapter;
import fluentindia.tech.MenuModel.ProductModel;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemSelectedListener;
public class Feedback extends Fragment
{
Button close,home,btnback,btnsend;
EditText edname,edcompany,edemail,edcontact,edwebsite,edaddress,edcomment;
String na,con,email,comm,advname,advem,advcontact,nacompany,web,add;
Spinner product;
JsonHelper Jobj;
String WebUrl, UrlImg;
JSONObject obj = null;
String Id,name,em,contact,AdvocateId,city;
ProductAdapter madappppppppppp;
ArrayList<ProductModel> llistttt;
int proid=0;
TextView textViewt2,t1;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState)
{
View v =inflater.inflate(R.layout.feedback, null);
edname = (EditText)v.findViewById(R.id.editname);
edemail = (EditText)v.findViewById(R.id.editemail);
edcontact = (EditText)v.findViewById(R.id.editcontact);
edcomment = (EditText)v.findViewById(R.id.editcomment);
btnsend = (Button)v.findViewById(R.id.btnsend);
product = (Spinner)v.findViewById(R.id.editproduct);
textViewt2 = (TextView)v.findViewById(R.id.textViewt2);
t1 = (TextView)v.findViewById(R.id.textView1);
Bundle bung = this.getArguments();
if(bung!=null)
{
proid = bung.getInt("proid");
}
if(proid == 0)
{
Processtaluka pro = new Processtaluka();
pro.executeOnExecutor(pro.THREAD_POOL_EXECUTOR, new String[]{"selectdistict.php"});
}
else
{
Processtaluka pro = new Processtaluka();
pro.executeOnExecutor(pro.THREAD_POOL_EXECUTOR, new String[]{"selectsingledistict.php?proid="+proid});
}
t1.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v) {
Intent callweb = new Intent(Intent.ACTION_VIEW);
callweb.setData(Uri.parse("http://pulleycoupling.com/"));
startActivity(callweb);
}
});
textViewt2.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v) {
Intent callIntent = new Intent(Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:9824155380"));
startActivity(callIntent);
}
});
btnsend.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
na=edname.getText().toString();
con=edcontact.getText().toString();
email=edemail.getText().toString();
comm = edcomment.getText().toString();
if(na==null||na==""||na.length()<2)
{
edname.setError("Please Enter Name");
}
else if(con == null || con == "" || con.length()<10)
{
edcontact.setError("Please Enter Contact");
}
else if(email == null || email == "" || email.length()<4)
{
edemail.setError("Please Enter Email");
}
else if(comm == null || comm== "" || comm.length()<2)
{
edcomment.setError("Please Enter Comment");
}
else
{
ProcessInquiry pro = new ProcessInquiry();
pro.execute(new String[]{"insertfeedback.php"});
}
}
});
return v;
}
private class ProcessInquiry extends AsyncTask<String, Void, Boolean>
{
ProgressDialog dialog = new ProgressDialog(getActivity());
#Override
protected void onPreExecute()
{
dialog.setMessage("Please Wait Feedback send..");
dialog.show();
}
#Override
protected Boolean doInBackground(String... Url)
{
for(String Url1 : Url)
{
try
{
Jobj = new JsonHelper();
ArrayList<NameValuePair> pair = new ArrayList<NameValuePair>();
pair.add(new BasicNameValuePair("name", na));
pair.add(new BasicNameValuePair("contact", con));
pair.add(new BasicNameValuePair("email", email));
pair.add(new BasicNameValuePair("comment", comm));
pair.add(new BasicNameValuePair("product", city));
Jobj.MakeJsonCall(Url1, 2, pair);
Log.e("Url", Url1);
return true;
}
catch (Exception e)
{
return false;
}
}
return true;
}
#Override
protected void onPostExecute(Boolean result)
{
if(result==true)
{
Toast.makeText(getActivity(), "Feedback Send Sucessfully", 1000).show();
Intent i=new Intent(getActivity(),FragmentMaster.class);
i.putExtra("frgNo", "0");
startActivity(i);
edname.setText("");
edcomment.setText("");
edcontact.setText("");
edemail.setText("");
}
dialog.dismiss();
}
}
private class Processtaluka extends AsyncTask<String, Void, Boolean>
{
#Override
protected void onPreExecute()
{
}
#Override
protected Boolean doInBackground(String... Url)
{
for(String Url1 : Url)
{
Jobj = new JsonHelper();
obj = Jobj.MakeJsonCall(Url1, 2);
try
{
llistttt = new ArrayList<ProductModel>();
JSONArray JArr = obj.getJSONArray("record");
if(proid == 0)
{
}
else
{
}
for(int i=0;i<JArr.length();i++)
{
JSONObject dObj = JArr.getJSONObject(i);
llistttt.add(new ProductModel( dObj.getString("sub_id"), dObj.getString("sub_name")));
}
}
catch (JSONException e)
{
e.printStackTrace();
}
return true;
}
return true;
}
#Override
protected void onPostExecute(Boolean result)
{
madappppppppppp = new ProductAdapter(getActivity(),llistttt);
product.setAdapter(madappppppppppp);
product.setPrompt("Select The Service You Want");
product.setOnItemSelectedListener(new OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
city= llistttt.get(arg2).getSubname();
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}
}
}

Cannot display toast in a catch

package com.example.m2mai;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.sql.Timestamp;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
public class RetrieveActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_retrieve);
}
public void getStream(View v)
{
new MyAsyncTask().execute();
}
private class MyAsyncTask extends AsyncTask<String, Void, String>
{
ArrayList<String> mNameList = new ArrayList<String>();
public ArrayList<String> atList=new ArrayList<String>();
public ArrayList<String> dataList=new ArrayList<String>();
protected String doInBackground(String... params)
{
return getData();
}
public long getDateTo()
{
EditText toText = (EditText)findViewById(R.id.dateTo);
String To = toText.getText().toString();
DateFormat dateFormatTo = new SimpleDateFormat("dd/MM/yyyy");
Date dateTo = null;
try {
dateTo = dateFormatTo.parse(To);
} catch (java.text.ParseException e) {
.runOnUiThread(new Runnable(){
public void run() {
Toast.makeText(getApplicationContext(),"Please key in the correct input", Toast.LENGTH_LONG).show();
}
});
e.printStackTrace();
}
long timeTo = dateTo.getTime();
new Timestamp(timeTo);
return timeTo/1000;
}
protected String getData()
{
String toTS = ""+getDateTo();
String decodedString="";
String returnMsg="";
String request = "http://api.carriots.com/devices/defaultDevice#eric3231559.eric3231559/streams/?order=-1&max=10&at_to="+toTS;
URL url;
HttpURLConnection connection = null;
try {
url = new URL(request);
connection = (HttpURLConnection) url.openConnection();
connection.addRequestProperty("carriots.apikey", "1234567");
connection.addRequestProperty("Content-Type", "application/json");
connection.setRequestMethod("GET");
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
while ((decodedString = in.readLine()) != null)
{
returnMsg+=decodedString;
}
in.close();
connection.disconnect();
JSONObject nodeRoot = new JSONObject(returnMsg);
JSONArray res = nodeRoot.getJSONArray("result");
for (int i = 0; i < res.length(); i++)
{
JSONObject childJSON = res.getJSONObject(i);
if (childJSON.get("data")!=null)
{
String value = childJSON.getString("data");
dataList.add(value);
JSONObject node=new JSONObject(value);
atList.add(node.get("temperature").toString());
}
}
}
catch (Exception e)
{
e.printStackTrace();
returnMsg=""+e;
}
return returnMsg;
}
protected void onPostExecute(String result)
{
for(int i = 0; i < atList.size(); i++)
{
ListView mainListView = (ListView) findViewById(R.id.listView1);
ArrayAdapter<String> mArrayAdapter = new ArrayAdapter<String>(RetrieveActivity.this,android.R.layout.simple_list_item_1,mNameList);
mainListView.setAdapter(mArrayAdapter);
mNameList.add(atList.get(i).toString());
mArrayAdapter.notifyDataSetChanged();
}
Toast.makeText(getApplicationContext(),result, Toast.LENGTH_SHORT).show();
EditText myData1=(EditText)findViewById(R.id.editText1);
myData1.setText(atList.get(0));
}
}
}
How can I actually display a toast without stoping it? Whenever it falls into the catch it is not responding.
............................................................................................................................................................................................................................................................................

If you are using try-catch in a worker thread and want to display Toast, then I am afraid it is not going to work. You will have to do it in Main(UI) thread.
Try following:
try {
dateTo = dateFormatTo.parse(To);
}
catch (java.text.ParseException e) {
your_activity_context.runOnUiThread(new Runnable(){
public void run() {
Toast.makeText(getApplicationContext(),"Please key in the correct input", Toast.LENGTH_LONG).show();
}
});
e.printStackTrace();
}

Try following:
In getDateTo():
try {
dateTo = dateFormatTo.parse(To);
} catch (java.text.ParseException e) {
runOnUiThread(new Runnable(){
public void run() {
Toast.makeText(getApplicationContext(),"Please key in the correct input", Toast.LENGTH_LONG).show();
}
});
e.printStackTrace();
return -1L; // attention here
}
In getData():
long dateTo = -1L;
if((dateTo = getDateTo()) == -1L){
return null;
}
String toTS = "" + getDateTo();
In onPostExecute:
if(result == null) {
return;
}

Make boolean flag = false; globally.
Inside catch block make flag = true;
Run Toast inside an if block like
if (flag) {
Toast.makeText(this, "Sorry, Couldn't find anything!", Toast.LENGTH_LONG).show();
}
inside your onclick method.

CancellationException while using AsyncTask in Android?

I am using AsyncTask in my application and sometimes when I run the application I get the error as java.util.cancellationexception.
Can someone let me know the reason of this error or the way this can be removed?
import java.util.concurrent.ExecutionException;
import com.babbleville.io.BabbleVilleSyncTask;
import com.babbleville.io.GetCurrentLocation;
import com.babbleville.utils.BabbleVilleWebServiceUrl;
import com.babbleville.utils.ConstantCodes;
import com.babbleville.utils.LoadContent;
import com.babbleville.io.LoginParse;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class BabbleVilleMainActivity extends Activity implements OnClickListener
{
private Button btnLogin = null;
private Button btnNewUserSignUp = null;
private Button btnForgotPwd = null;
//private boolean loginFlag = false;
private EditText emailId = null;
private EditText password = null;
private String userName = null;
private String pwd = null;
String url = null;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.login);
btnLogin = (Button) findViewById (R.id.btnLogin);
btnNewUserSignUp = (Button) findViewById(R.id.btnNewUser);
btnForgotPwd = (Button) findViewById(R.id.btnForgotPwd);
emailId = (EditText) findViewById(R.id.emailId);
password = (EditText) findViewById(R.id.password);
//Temporary. Should be removed later on.
emailId.setText("sunil#softwebsolutions.com");
password.setText("sunil123");
btnLogin.setOnClickListener(this);
btnNewUserSignUp.setOnClickListener(this);
btnForgotPwd.setOnClickListener(this);
}
/**
* This is the overriden method for getting the click events.
* #param View v = is the view on which click event this method is called.
* For eg, on Login click button v will btnLogin.
*/
public void onClick(View v)
{
if(v == btnLogin)
{
userName = emailId.getText().toString().trim();
pwd = password.getText().toString().trim();
System.out.println("User name ==> " + userName);
System.out.println("Password ==> " + pwd);
if(userName == null || pwd == null || userName.equals("") || pwd.equals(""))
{
Toast toast = Toast.makeText(BabbleVilleMainActivity.this, "Please enter your Username and Password!", 50);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
else
{
url = null;
/*url = ConstantCodes.LOGIN_URL + ConstantCodes.ACTION + "=" + ConstantCodes.LOGIN_ACTION + "&" +
ConstantCodes.EMAILID + "=" + this.userName + "&" + ConstantCodes.PWD + "=" + this.pwd ;*/
url = BabbleVilleWebServiceUrl.getLoginURL() + ConstantCodes.EMAILID + "=" + this.userName + "&" + ConstantCodes.PWD + "=" + this.pwd ;
System.out.println("Login URL ==> " + url);
BabbleVilleSyncTask loginTask = new BabbleVilleSyncTask(v.getContext());
loginTask.execute(url);
//System.out.println("status===>"+loginTask.getStatus());
try
{
String result = loginTask.get().trim();
System.out.println("Result returned from Login Task ==> " + result);
LoginParse.loginParser(result);
if(LoginParse.getLoginAck())
{
/*ConstantCodes.BABBLE_START_NUM = 0;
ConstantCodes.BABBLE_END_NUM = 5;*/
// loadBabbles();
GetCurrentLocation location = new GetCurrentLocation(v.getContext());
String lat = location.getCurrentLatitude();
String lon = location.getCurrentLongitude();
System.out.println("Latitude ==> " + lat + " Longitude ==> " + lon);
//Babble babble_add_data = new Babble(BabbleVilleMainActivity.this,"babble");
LoadContent loadContent = new LoadContent(BabbleVilleMainActivity.this);
loadContent.loadBabbles(lat, lon);
loadContent.loadVilles();
//loadContent.loadUserDetails();
//mContext = v.getContext();
Intent homeScreenIntent = new Intent(BabbleVilleMainActivity.this, HomeScreenActivity.class);
BabbleVilleMainActivity.this.startActivity(homeScreenIntent);
}
else
{
Toast toast = Toast.makeText(BabbleVilleMainActivity.this, "Username or Password is incorrect", 50);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
}
catch (InterruptedException e)
{
e.printStackTrace();
}
catch (ExecutionException e)
{
e.printStackTrace();
}
}
}
else if(v == btnForgotPwd)
{
Intent forgetPwdIntent = new Intent(BabbleVilleMainActivity.this, ForgotPasswordActivity.class);
BabbleVilleMainActivity.this.startActivity(forgetPwdIntent);
}
else if(v == btnNewUserSignUp)
{
Intent newUserIntent = new Intent(BabbleVilleMainActivity.this, NewUserSignUpActivity.class);
BabbleVilleMainActivity.this.startActivity(newUserIntent);
}
}
}
The exception occurs at String result = loginTask.get().trim().
Can you let me know now what is the problem?
package com.babbleville.io;
import java.io.IOException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
public class BabbleVilleSyncTask extends AsyncTask<String, Void, String>
{
private Context context = null;
private final HttpClient httpClient = new DefaultHttpClient();
private String content = null;
private String error = null;
private ProgressDialog progressDialog = null;
private String finalResult = null;
public BabbleVilleSyncTask(Context context)
{
this.context = context;
progressDialog = new ProgressDialog(this.context);
}
protected void onPreExecute()
{
progressDialog.setMessage("Please Wait....");
progressDialog.show();
}
protected String doInBackground(String... urls)
{
try
{
HttpGet httpget = new HttpGet(urls[0]);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
content = httpClient.execute(httpget, responseHandler);
}
catch (ClientProtocolException e)
{
error = e.getMessage();
Log.e("ClientProtocolException", error);
cancel(true);
}
catch (IOException e)
{
error = e.getMessage();
Log.e("IOException", error);
cancel(true);
}
httpClient.getConnectionManager().shutdown();
return content;
}
protected void onPostExecute(String result)
{
progressDialog.dismiss();
}
}
Please let me know how can I use the result returned in onPostExecute.