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Not saving String value in sharedPreferences

I am trying to save a string in sharedPreferences. I don't know what I did wrong but it doesn't save the String value.
this is the code
here I am saving String value "phone". notice its Fragment page
package com.world.bolandian.watchme;
import android.app.Fragment;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.gson.Gson;
public class LoginFragment extends Fragment implements Listen {
Button loginBtn;
ServerRequest ser;
Connector c;
LoginCommunicationThread loginT;
private LoginUser logUser;
EditText phone,password;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_login, container, false);
}
public void setInterface(Connector c){
this.c=c;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
ser=new ServerRequest();
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOGIN_SERVLET);
ser.setResponse(this);
loginT = new LoginCommunicationThread(ser);
phone = (EditText)getActivity().findViewById(R.id.userTxt);
password = (EditText)getActivity().findViewById(R.id.passwordTxt);
loginBtn = (Button) getActivity().findViewById(R.id.loginBtn);
loginBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//save phone number in sharedpreferences
SharedPreferences pref = getActivity().getPreferences(0);
SharedPreferences.Editor edt = pref.edit();
edt.putString("PHONE",String.valueOf(phone.getText()));
edt.commit();
Context context = getActivity();
PreferenceManager.getDefaultSharedPreferences(context).edit().putString("PHONE", String.valueOf(phone.getText()));
logUser = new LoginUser(phone.getText().toString(),password.getText().toString());
if (phone.getText().toString() == null)
{
Toast.makeText(getActivity(),"Please enter phone number", Toast.LENGTH_LONG).show();
}
if(password.getText().toString() == null)
{
Toast.makeText(getActivity(),"Please enter password", Toast.LENGTH_LONG).show();
}
else {
Gson g = new Gson();
String ans = g.toJson(logUser, LoginUser.class);
login(logUser);
}
}
});
}
public void login (LoginUser user)
{
LoginCommunicationThread con;
ServerRequest ser = new ServerRequest();
ser.setResponse(this);
Gson gson = new Gson();
String send = gson.toJson(user,LoginUser.class);
ser.addParamaters(Params.USER,send);
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOGIN_SERVLET);
con = new LoginCommunicationThread(ser);
con.start();
}
#Override
public void good() {
Toast.makeText(getActivity(), "Welcome", Toast.LENGTH_LONG).show();
Intent i = new Intent(getActivity(),MainActivity.class);
startActivity(i);
}
#Override
public void notGood() {
Toast.makeText(getActivity(),"Wrong password or phone",Toast.LENGTH_LONG).show();
}
#Override
public void notGoodServerEroorr() {
Toast.makeText(getActivity(), "Connection Error please try again", Toast.LENGTH_LONG);
}
}
Here i extract the value "PHONE" but i keep getting null. for some reason it doesnt get the value and the default is null (This page is Activity)
package com.world.bolandian.watchme;
import android.app.Activity;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TabHost;
import android.widget.TextView;
import com.google.gson.Gson;
public class MainActivity extends Activity implements Listen {
private LockAndUnLock sendnotf;
TextView status;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
status = (TextView)findViewById(R.id.status);
TabHost tabHost = (TabHost) findViewById(R.id.tabHost);
tabHost.setup();
TabHost.TabSpec tabspec = tabHost.newTabSpec("main");
tabspec.setContent(R.id.main);
tabspec.setIndicator("Main");
tabHost.addTab(tabspec);
tabspec = tabHost.newTabSpec("gps");
tabspec.setContent(R.id.GPS);
tabspec.setIndicator("GPS");
tabHost.addTab(tabspec);
tabspec = tabHost.newTabSpec("info");
tabspec.setContent(R.id.INFO);
tabspec.setIndicator("Info");
tabHost.addTab(tabspec);
}
public void Lock (View view)
{
SharedPreferences sharedPreferences =
PreferenceManager.getDefaultSharedPreferences(this);
String phone = sharedPreferences.getString("PHONE", null);
PreferenceManager.getDefaultSharedPreferences(this).getString("PHONE",
null);
sendnotf = new LockAndUnLock(phone,1); // 1 = true = lock
Gson g = new Gson();
String ans=g.toJson(sendnotf, LockAndUnLock.class);
sendLockAndUnlock(sendnotf);
if (status.getVisibility() != View.VISIBLE) {
status.setVisibility(View.VISIBLE);
}
status.setText("LOCKED");
status.setTextColor(Color.RED);
}
public void UnLock (View view)
{
SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
String phone = sharedPreferences.getString("PHONE",null);
sendnotf = new LockAndUnLock(phone,0); // 0 = false = unlock
Gson g = new Gson();
String ans=g.toJson(sendnotf, LockAndUnLock.class);
sendLockAndUnlock(sendnotf);
if (status.getVisibility() != View.VISIBLE) {
status.setVisibility(View.VISIBLE);
}
status.setText("OPEN");
status.setTextColor(Color.GREEN);
}
#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);
}
#Override
public void good() {
}
#Override
public void notGood() {
}
#Override
public void notGoodServerEroorr() {
}
public void sendLockAndUnlock(LockAndUnLock sendnotf){
RegisterCommunicationThread con;
ServerRequest ser = new ServerRequest();
ser.setResponse(this);
Gson gson = new Gson();
String send = gson.toJson(sendnotf, LockAndUnLock.class);
ser.addParamaters(Params.LOCKANDUNLOCK,send);
ser.addServerName(Params.SERVER_URL);
ser.addServletName(Params.LOCKANDUNLOCK_SERVLET);
con = new RegisterCommunicationThread(ser);
con.start();
}
}

Problem is with different shared preferences objects. According to official documentation:
getPreferences (int mode)
Added in API level 1 Retrieve a SharedPreferences object for accessing
preferences that are private to this activity. This simply calls the
underlying getSharedPreferences(String, int) method by passing in this
activity's class name as the preferences name.
My suggestion is to use special entity for handling shared preferences. In your case it may look like following code
public class SharedPreferencesManager {
private static final String PREFERENCES_NAME = "your_name";//name for xml file
private final SharedPreferences sharedPreferences;
public SharedPreferencesManager(Context context) {
sharedPreferences = context.getSharedPreferences(PREFERENCES_NAME, Context.MODE_PRIVATE);
}
public String getPhone() {
return sharedPreferences.getString("PHONE", null);
}
public void savePhone(#NonNull String phone) {
sharedPreferences.edit().putString("PHONE", phone).apply(); //or commit for blocking save
}
}
Then replace all your direct call to SharedPreferences in Activity, Fragment with above object.

Two activities sending data to each other

Two activities are sending data to each other.
The first activity has a custom list view. The second has one text view and three buttons to increase and decrease a value.
When I click on the first activity, the second activity opens. The second activity increases the text view value and clicked the button. Data goes to the first activity. Same process again.
My problem is that the total value is not displayed in the first activity.
How can i show all increase and decrease values from the second activity in the first activity?
First activity's code:
package com.firstchoicefood.phpexpertgroup.firstchoicefoodin;
import android.app.ActionBar;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.AsyncTask;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.app.Activity;
import com.firstchoicefood.phpexpertgroup.firstchoicefoodin.bean.ListModel;
import com.firstchoicefood.phpexpertgroup.firstchoicefoodin.json.JSONfunctions;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
public class DetaisRESTActivity extends Activity {
String messagevaluename,valueid,valueid1,valuename,pos;
public String countString=null;
String nameofsubmenu;
public int count=0;
public String message=null;
public String message1=null;
JSONObject jsonobject;
JSONArray jsonarray;
ListView listview;
ArrayList aa;
public SharedPreferences.Editor edit;
public TextView mTitleTextView;
public ImageButton imageButton;
ListAdapterAddItems adapter;
public TextView restaurantname = null;
public TextView ruppees = null;
ProgressDialog mProgressDialog;
ArrayList<ListModel> arraylist;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detais_rest);
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ff0000")));
SharedPreferences preferences=getSharedPreferences("temp1", 1);
// SharedPreferences.Editor editor = preferences.edit();
int na=preferences.getInt("COUNTSTRING1",0);
Log.i("asasassas",""+na);
LayoutInflater mInflater = LayoutInflater.from(this);
View mCustomView = mInflater.inflate(R.layout.titlebar, null);
mTitleTextView = (TextView) mCustomView.findViewById(R.id.textView123456789);
imageButton = (ImageButton) mCustomView
.findViewById(R.id.imageButton2);
imageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "Refresh Clicked!",
Toast.LENGTH_LONG).show();
Intent i=new Intent(DetaisRESTActivity.this,TotalPriceActivity.class);
startActivity(i);
}
});
actionBar.setCustomView(mCustomView);
actionBar.setDisplayShowCustomEnabled(true);
// SqliteControllerSqliteController db = new SqliteControllerSqliteController(QuentityActivity.this);
// Reading all contacts
/*
Log.d("Reading: ", "Reading all contacts..");
List<Contact> contacts = db.getAllContacts();
for (Contact cn : contacts) {
String log = "Id: "+cn.getID()+" ,Name: " + cn.getName() + " ,Phone: " +
cn.getPhoneNumber();
// Writing Contacts to log
Log.d("Name: ", log);
}
*/
Intent intent = getIntent();
// get the extra value
valuename = intent.getStringExtra("restaurantmenuname");
valueid = intent.getStringExtra("restaurantmenunameid");
valueid1 = intent.getStringExtra("idsrestaurantMenuId5");
//totalamount = intent.getStringExtra("ruppees");
Log.i("valueid",valueid);
Log.i("valuename",valuename);
Log.i("valueid1",valueid1);
// Log.i("totalamount",totalamount);
new DownloadJSON().execute();
}
// DownloadJSON AsyncTask
private class DownloadJSON extends AsyncTask<Void,Void,Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(DetaisRESTActivity.this);
// Set progressdialog title
mProgressDialog.setTitle("Android JSON Parse Tutorial");
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
Toast.makeText(DetaisRESTActivity.this, "Successs", Toast.LENGTH_LONG).show();
}
#Override
protected Void doInBackground(Void... params) {
// Create an array
arraylist = new ArrayList<ListModel>();
// Retrieve JSON Objects from the given URL address
// Log.i("123",value1);
jsonobject = JSONfunctions.getJSONfromURL("http://firstchoicefood.in/fcfapiphpexpert/phpexpert_restaurantMenuItem.php?r=" + URLEncoder.encode(valuename) + "&resid=" + URLEncoder.encode(valueid1) + "&RestaurantCategoryID=" + URLEncoder.encode(valueid) + "");
try {
// Locate the array name in JSON
jsonarray = jsonobject.getJSONArray("RestaurantMenItems");
Log.i("1234",""+jsonarray);
for (int i = 0; i < jsonarray.length(); i++) {
jsonobject = jsonarray.getJSONObject(i);
ListModel sched = new ListModel();
sched.setId(jsonobject.getString("id"));
sched.setProductName(jsonobject.getString("RestaurantPizzaItemName"));
sched.setPrice(jsonobject.getString("RestaurantPizzaItemPrice"));
arraylist.add(sched);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(Void args) {
// Locate the listview in listview_main.xml
listview = (ListView) findViewById(R.id.listViewdetails);
adapter = new ListAdapterAddItems();
listview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
adapter.notifyDataSetChanged();
listview.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3)
{
// Get Person "behind" the clicked item
ListModel p =(ListModel)listview.getItemAtPosition(position);
// Log the fields to check if we got the info we want
Log.i("SomeTag",""+p.getId());
//String itemvalue=(String)listview.getItemAtPosition(position);
Log.i("SomeTag", "Persons name: " + p.getProductName());
Log.i("SomeTag", "Ruppees: " + p.getPrice());
Toast toast = Toast.makeText(getApplicationContext(),
"Item " + (position + 1),
Toast.LENGTH_SHORT);
toast.setGravity(Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);
toast.show();
Log.i("postititi",""+position);
Intent intent=new Intent(DetaisRESTActivity.this,QuentityActivity.class);
intent.putExtra("quentity",countString);
intent.putExtra("valueid",valueid);
intent.putExtra("valuename",valuename);
intent.putExtra("valueid1",valueid1);
intent.putExtra("id",p.getId());
intent.putExtra("name",p.getProductName());
intent.putExtra("price",p.getPrice());
startActivityForResult(intent,2);
// startActivity(intent);
}
});
}
}
// Call Back method to get the Message form other Activity
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
// check if the request code is same as what is passed here it is 2
if(requestCode==2)
{
pos=data.getStringExtra("POSITION");
message=data.getStringExtra("MESSAGE");
message1=data.getStringExtra("COUNTSTRING");
messagevaluename=data.getStringExtra("VALUENAME");
nameofsubmenu=data.getStringExtra("name");
Log.i("xxxxxxxxxxx",message);
Log.i("xxxxxxxxxxx1234",pos);
Log.i("xxxxxxxxxxx5678count",message1);
Log.i("messagevaluename",messagevaluename);
Log.i("submenu",nameofsubmenu);
//ruppees.setText(message);
//editor.putInt("count",na);
//editor.commit();
//Log.i("asasassasasdsasdasd",""+na);
// mTitleTextView.setText(Arrays.toString(message1));
mTitleTextView.setText(message1);
imageButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getApplicationContext(), message,
Toast.LENGTH_LONG).show();
Intent i=new Intent(DetaisRESTActivity.this,TotalPriceActivity.class);
i.putExtra("count",message1);
i.putExtra("submenu",nameofsubmenu);
i.putExtra("ruppees",message);
i.putExtra("id",pos);
i.putExtra("messagevaluename",messagevaluename);
startActivity(i);
}
});
}
}
//==========================
class ListAdapterAddItems extends ArrayAdapter<ListModel>
{
ListAdapterAddItems(){
super(DetaisRESTActivity.this,android.R.layout.simple_list_item_1,arraylist);
//imageLoader = new ImageLoader(MainActivity.this);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
if(convertView == null){
LayoutInflater inflater = getLayoutInflater();
convertView = inflater.inflate(R.layout.cartlistitem, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}else{
holder = (ViewHolder)convertView.getTag();
}
holder.populateFrom(arraylist.get(position));
// arraylist.get(position).getPrice();
return convertView;
}
}
class ViewHolder {
ViewHolder(View row) {
restaurantname = (TextView) row.findViewById(R.id.rastaurantnamedetailsrestaurant);
ruppees = (TextView) row.findViewById(R.id.rastaurantcuisinedetalsrestaurant);
}
// Notice we have to change our populateFrom() to take an argument of type "Person"
void populateFrom(ListModel r) {
restaurantname.setText(r.getProductName());
ruppees.setText(r.getPrice());
}
}
//=============================================================
#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_detais_rest, 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.
return super.onOptionsItemSelected(item);
}
public void OnPause(){
super.onPause();
}
}
Second activity's code:
package com.firstchoicefood.phpexpertgroup.firstchoicefoodin;
import android.app.ActionBar;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.util.Log;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.firstchoicefood.phpexpertgroup.firstchoicefoodin.bean.CARTBean;
import com.firstchoicefood.phpexpertgroup.firstchoicefoodin.bean.ListModel;
import com.firstchoicefood.phpexpertgroup.firstchoicefoodin.database.SqliteController;
public class QuentityActivity extends Activity {
String value=null;
public String TotAmt=null;
String[] cccc;
ImageButton positive,negative;
String position;
static int count = 1;
int tot_amt = 0;
public String countString=null;
String name,price;
String valueid,valueid1,valuename;
public TextView ruppees,submenuname,totalruppees,quantity,addtocart;
SharedPreferences preferences;
SharedPreferences.Editor editor;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_quentity);
ActionBar actionBar = getActionBar();
// Enabling Up / Back navigation
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#ff0000")));
preferences = getSharedPreferences("temp1",1);
editor = preferences.edit();
Intent intent = getIntent();
// get the extra value
value = intent.getStringExtra("quentity");
valuename = intent.getStringExtra("valuename");
valueid = intent.getStringExtra("valueid");
valueid1 = intent.getStringExtra("valueid1");
name=intent.getStringExtra("name");
price=intent.getStringExtra("price");
position=intent.getStringExtra("id");
quantity=(TextView)findViewById(R.id.rastaurantcuisinedetalsrestaurantquantity);
totalruppees=(TextView)findViewById(R.id.rastaurantnamequentitytotal1);
submenuname=(TextView)findViewById(R.id.rastaurantnamesubmenuquentity);
ruppees=(TextView)findViewById(R.id.rastaurantnamequentity1);
positive=(ImageButton)findViewById(R.id.imageButtonpositive);
negative=(ImageButton)findViewById(R.id.imageButtonnegative);
addtocart=(TextView)findViewById(R.id.textViewaddtocart);
buttonclick();
addtocart();
submenuname.setText(name);
ruppees.setText(price);
totalruppees.setText(price);
// new DownloadJSON().execute();
}
public void buttonclick(){
positive.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String totalAmtString = ruppees.getText().toString();
int totAmount = Integer.parseInt(totalAmtString);
//count = Integer.parseInt(getString);
count++;
editor.putInt("COUNTSTRING1", count);
editor.commit();
editor.clear();
Log.i("sunder sharma",""+count);
countString= String.valueOf(count);
tot_amt = totAmount * count;
TotAmt = String.valueOf(tot_amt);
totalruppees.setText(TotAmt);
quantity.setText(countString);
}
});
negative.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String totalAmtString = ruppees.getText().toString();
int totAmount = Integer.parseInt(totalAmtString);
if (count > 1)
count--;
editor.putInt("COUNTSTRING1", count);
editor.commit();
countString = String.valueOf(count);
tot_amt = totAmount * count;
TotAmt = String.valueOf(tot_amt);
totalruppees.setText(TotAmt);
quantity.setText(countString);
}
});
}
public void addtocart(){
addtocart.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/* Log.i("valueid",valueid);
Log.i("valuename",valuename);
Log.i("valueid1",valueid1);
Log.i("name",name);
Log.i("price",price);
Log.i("id1",position);
SqliteController db = new SqliteController(QuentityActivity.this);
db.insertStudent(new CARTBean(position,name,price,countString,TotAmt));
*/
Intent intent=new Intent();
intent.putExtra("MESSAGE",TotAmt);
intent.putExtra("POSITION",position);
intent.putExtra("COUNTSTRING",countString);
intent.putExtra("VALUENAME",valuename);
intent.putExtra("name",name);
setResult(2,intent);
finish();//finishing activity
}
});
}
#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_quentity, 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);
}
}

Collect the data from second activity and put into below intent .Then you will receive first activity.
Intent myIntent = new Intent(secondActivity.this, firstActivity.class);
myIntent.putExtra("COUNTSTRING", CountString); //add data
startActivity(myIntent);

list of images not showing up after search button is pressed

I am getting image urls using google image search apis. i use okhttp to connect to the url. this is done in my activity's oncreate method. in the oncreate() method of fragment i get all the image urls and store them in mSmallIMagesUrl, in the oncreateView() i try to display the images using a customized adapter. but when i run my app, hit the search button, it shows a blank page, when i go back and click the search button(there is always text in the search box) it shows images of the the previous search text. i dont know why it this,below is my code, please let me know what i am missing. thanks
package com.paveynganpi.allsearch;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.annotation.Nullable;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.squareup.okhttp.Call;
import com.squareup.okhttp.Callback;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.w3c.dom.Text;
import java.io.IOException;
import java.util.ArrayList;
public class ImageGrid extends ActionBarActivity {
private static final String TAG = ImageGrid.class.getSimpleName();
protected int start = 0;//variable to change pages from google Api
//contains extra images urls to supply to ... when need
protected static ArrayList<ArrayList<String>> mBigImagesUrls = new ArrayList<ArrayList<String>>();
//contains image urls to inject into gridview
protected static ArrayList<String> mSmalImagesUrls = new ArrayList<>();
protected static String mEditedString;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_image_grid);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment())
.commit();
}
for (int start = 0; start < 2; start++) {
if (isNetworkAvailable()) {
//using okHttp library to connect to imagesUrl and retrieve JSON Data
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(getImagePage(start)).
build();
Call call = client.newCall(request);
//runs the below code asynchronously
call.enqueue(new Callback() {
#Override
public void onFailure(Request request, IOException e) {
Log.v(TAG, "error from request");
}
#Override
public void onResponse(Response response) throws IOException {
try {
String jsonData = response.body().string();
//Log.v(TAG, jsonData);
if (!response.isSuccessful()) {
alertUserAboutError();
} else {
// mSmalImagesUrls = getCurrentDetails(jsonData);
mBigImagesUrls.add(getCurrentDetails(jsonData));
Log.d(TAG, mBigImagesUrls.size() + " big size");
Log.d(TAG, mSmalImagesUrls.size() + " small size");
}
} catch (IOException | JSONException e) {
Log.e(TAG, "Exception caught :", e);
}
}
});
} else {
Toast.makeText(this, "Network is unavailable", Toast.LENGTH_LONG).show();
}
}
}
#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_image_grid, 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);
}
private String getImagePage(int start) {
return "https://ajax.googleapis.com/ajax/services/search/images?v=1.0&q="
+ mEditedString + "&rsz=8&start=" + start;
}
//get data
private ArrayList<String> getCurrentDetails(String jsonData) throws JSONException {
JSONObject jsonObject = new JSONObject(jsonData);
JSONObject responseData = jsonObject.getJSONObject("responseData");
ArrayList<String> localList = new ArrayList<String>();
JSONArray results = responseData.getJSONArray("results");
for (int i = 0; i < results.length(); i++) {
localList.add(results.getJSONObject(i).getString("url"));
}
return localList;
}
//An AlertDialog to display to user when an error occurs
private void alertUserAboutError() {
AlertDialogFragment dialog = new AlertDialogFragment();
dialog.show(getFragmentManager(), "error_dialog");
}
//checks if user is connected to a network
private boolean isNetworkAvailable() {
ConnectivityManager cm =
(ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean isAvailable = false;
if (activeNetwork != null && activeNetwork.isConnectedOrConnecting()) {
isAvailable = true;
}
return isAvailable;
}
#Override
public void onBackPressed() {
super.onBackPressed();
Log.d(TAG,"back was pressed");
mBigImagesUrls.clear();
mSmalImagesUrls.clear();
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
protected GridView mGridView;//reference to gridview in fragment_image_grid.xml
static String mEditedString;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, mBigImagesUrls.size() + " final big size");
Log.d(TAG, mSmalImagesUrls.size() + "final small size");
for(int i =0;i<mBigImagesUrls.size();i++){
for(int j =0;j<8;j++){
mSmalImagesUrls.add(mBigImagesUrls.get(i).get(j));
}
}
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_image_grid, container, false);
final ArrayList<String> testList = new ArrayList<String>();
//gets the edited string from MainActivity
Bundle args = getActivity().getIntent().getExtras();
mEditedString = args.getString("space");
mGridView = (GridView)rootView.findViewById(R.id.imagesGrid);//reference to gridview
ImagesGridAdapter adapter = new ImagesGridAdapter(getActivity(), mSmalImagesUrls);
mGridView.setAdapter(adapter);
return rootView;
}
}
}

Since you are making an asynchronous request, the response is not available immediately. You can display a ProgressBar while the list of images is being downloaded, and then display the list when it has completed downloading.
After that, notify your adapter that the dataset has changed.

Android Voice input without click

I am new to android development. I need a solution for the new app I am developing which takes voice input and gives output in voice by mapping with a mapping database. Current program takes voice input with onlick on button . I need a soultion which can take voice input without clicking of any button simliar to Talking Tom application . Here is my code.My main code is in speakToMe which is method called on onclick & onActivityResult
package com.example.secondprog;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Locale;
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.os.Build;
import com.example.secondprog.*;
//import com.example.secondprog.DatabaseHelper;
public class MainActivity extends Activity {
private static final int VOICE_RECOGNITION_REQUEST = 0;
//private static final int VOICE_RECOGNITION_REQUEST = 0x10101;
TextToSpeech ttobj;
String resulttxt ;
TestDBClass db;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
db = new TestDBClass(this, null, null, 1);
try {
db.loadWords();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ttobj=new TextToSpeech(getApplicationContext(),
new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if(status != TextToSpeech.ERROR){
ttobj.setLanguage(Locale.UK);
Toast.makeText(getApplicationContext(), "No error",
Toast.LENGTH_LONG).show();
}
}
});
//DatabaseHelper db = DatabaseHelper(this);
//dbdtls dbdtlsresult = new dbdtls();
//String message3 = db.getdtls("how are");
//String output = dbdtlsresult.new_name();
//EditText editText = (EditText) findViewById(R.id.edit_message);
if (savedInstanceState == null) {
getFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
public void sendMessage(View view) {
EditText editText = (EditText) findViewById(R.id.edit_message);
String txt = editText.getText().toString();
// Toast.makeText(getApplicationContext(), txt.toUpperCase(),
// Toast.LENGTH_LONG).show();
DictonaryDAO dictonaryDAO =
db.findname(txt.toUpperCase());
if (dictonaryDAO != null) {
resulttxt = String.valueOf(dictonaryDAO.getnewname());
Toast.makeText(getApplicationContext(), resulttxt.toUpperCase(),
Toast.LENGTH_LONG).show();
}
ttobj.speak(resulttxt, TextToSpeech.QUEUE_FLUSH, null);
}
/*#Override
public void onPause(){
if(ttobj !=null){
ttobj.stop();
ttobj.shutdown();
}
super.onPause();
}
*/
**public void speakToMe(View view) {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
"Please speak slowly and enunciate clearly.");
startActivityForResult(intent, VOICE_RECOGNITION_REQUEST);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == VOICE_RECOGNITION_REQUEST && resultCode == RESULT_OK) {
ArrayList<String> matches = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
// TextView textView = (TextView) findViewById(R.id.speech_io_text);
String firstMatch = matches.get(0);
// textView.setText(firstMatch);
DictonaryDAO dictonaryDAO =
db.findname(firstMatch.toUpperCase());
if (dictonaryDAO != null) {
resulttxt = String.valueOf(dictonaryDAO.getnewname());
Toast.makeText(getApplicationContext(), resulttxt.toUpperCase(),
Toast.LENGTH_LONG).show();
ttobj.speak(resulttxt, TextToSpeech.QUEUE_FLUSH, null);
}
}
}**
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container,
false);
return rootView;
}
}
}

Voice Recognition not working for talking tom app so you try to use noise detection with sound meter. below here link for voice/ noise detection with audio recording without click.
http://androidexample.com/Detect_Noise_Or_Blow_Sound_-_Set_Sound_Frequency_Thersold/index.php?view=article_discription&aid=108&aaid=130
Please change SoundMeter.java File
mRecorder.setOutputFile(Environment.getExternalStorageDirectory().
getAbsolutePath() + "/test.3ggp");

XML Parsing giving error

I am trying to parse an XML from online on my android project but I get an error. I tried parsing the xml as a basic java project and it works but I don't know how to implement it in my android project. The error on the console says android.os.networkmainthreadException. I did add the permission to App manifest. My code below:
package com.example.medrec;
import java.io.IOException;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
import android.os.Build;
public class Details extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_details);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.details, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_details,
container, false);
//Code to parse starts here
String name[] = null;
String id[] = null;
String type[] = null;
String dosage[] = null;
String remaining[] = null;
DocumentBuilderFactory builderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder builder = null;
try {
builder = builderFactory.newDocumentBuilder();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
Document document = null;
String xmlDocument = "http://www2.southeastern.edu/Academics/Faculty/jburris/emr.xml";
try {
document = builder.parse(new URL(xmlDocument).openStream());
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
int total = 0;
// Creates a list of nodes for the root element, emr
NodeList emrRoot = document.getElementsByTagName("emr");
// Gets the first node in the list... really just our root node
Node emrNode = (Node) emrRoot.item(0);
if (emrNode instanceof Element) {
Element emrElement = (Element) emrNode;
// Gets the list of all patient_info nodes
NodeList patInfoList = emrElement
.getElementsByTagName("patient_order");
// Total Number of Records
total = patInfoList.getLength();
System.out.println("Total number of records is: " + total);
name = new String[total];
id = new String[total];
type = new String[total];
dosage = new String[total];
remaining = new String[total];
// Gets the first patient_info node... the first in the list of
// patients
// Fill in the values of our strings. The first is tricky because
// it is an attribute and not the content of the element.
for (int i = 0; i < total; i++) {
Node patInfoNode = (Node) patInfoList.item(i);
if (patInfoNode instanceof Element) {
// Get the element information for parient_info
Element pat_info = (Element) patInfoNode;
// Get the name...
Node n = pat_info.getElementsByTagName("patientName").item(
0);
name[i] = n.getTextContent();
// Get the id...
n = pat_info.getElementsByTagName("patientID").item(0);
id[i] = n.getTextContent();
// Get the type...
n = pat_info.getElementsByTagName("type").item(0);
type[i] = n.getTextContent();
// Get the dosage...
n = pat_info.getElementsByTagName("dosage").item(0);
dosage[i] = n.getTextContent();
// Get the remaining...
n = pat_info.getElementsByTagName("refillsremaining").item(
0);
remaining[i] = n.getTextContent();
}
}
}
//Toast.makeText(getApplicationContext(), type[5], Toast.LENGTH_SHORT).show();
//Code ends here
return rootView;
}
}
}
New Code with asyncTask
package com.example.medrec;
import java.io.IOException;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;
import android.os.Build;
public class Details extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_details);
new LongOperation().execute("");
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.details, 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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class LongOperation extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... params) {
String name[] = null;
String id[] = null;
String type[] = null;
String dosage[] = null;
String remaining[] = null;
DocumentBuilderFactory builderFactory = DocumentBuilderFactory
.newInstance();
DocumentBuilder builder = null;
try {
builder = builderFactory.newDocumentBuilder();
} catch (ParserConfigurationException e) {
e.printStackTrace();
}
Document document = null;
String xmlDocument = "http://www2.southeastern.edu/Academics/Faculty/jburris/emr.xml";
try {
document = builder.parse(new URL(xmlDocument).openStream());
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
int total = 0;
// Creates a list of nodes for the root element, emr
NodeList emrRoot = document.getElementsByTagName("emr");
// Gets the first node in the list... really just our root node
Node emrNode = (Node) emrRoot.item(0);
if (emrNode instanceof Element) {
Element emrElement = (Element) emrNode;
// Gets the list of all patient_info nodes
NodeList patInfoList = emrElement
.getElementsByTagName("patient_order");
// Total Number of Records
total = patInfoList.getLength();
System.out.println("Total number of records is: " + total);
name = new String[total];
id = new String[total];
type = new String[total];
dosage = new String[total];
remaining = new String[total];
// Gets the first patient_info node... the first in the list of
// patients
// Fill in the values of our strings. The first is tricky because
// it is an attribute and not the content of the element.
for (int i = 0; i < total; i++) {
Node patInfoNode = (Node) patInfoList.item(i);
if (patInfoNode instanceof Element) {
// Get the element information for parient_info
Element pat_info = (Element) patInfoNode;
// Get the name...
Node n = pat_info.getElementsByTagName("patientName").item(
0);
name[i] = n.getTextContent();
// Get the id...
n = pat_info.getElementsByTagName("patientID").item(0);
id[i] = n.getTextContent();
// Get the type...
n = pat_info.getElementsByTagName("type").item(0);
type[i] = n.getTextContent();
// Get the dosage...
n = pat_info.getElementsByTagName("dosage").item(0);
dosage[i] = n.getTextContent();
// Get the remaining...
n = pat_info.getElementsByTagName("refillsremaining").item(
0);
remaining[i] = n.getTextContent();
}
}
}
Toast.makeText(getApplicationContext(), type[5], Toast.LENGTH_SHORT).show();
return null;
}
#Override
protected void onPostExecute(String result) {
}
#Override
protected void onPreExecute() {
}
#Override
protected void onProgressUpdate(Void... values) {
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_details,
container, false);
return rootView;
}
}
}

that is a NullPoint error ,I find you may be in the pat_info.getElementsByTagName("refillsremaining"),the "refillsremaining" should be "refillsrRmaining".The r is R.

NetworkOnMainThreadException indicates you are trying to do a long blocking I/O operation on the UI thread. Move your XML download and parsing to its own thread - I recommend AsyncTask to get the job done. AsyncTask will issue a callback to your UI thread when the operation is done.
Example of AsyncTask: AsyncTask Android example
Another example: How to fix android.os.NetworkOnMainThreadException?