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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);
I am using navigation drawer with asynctask in one of the fragments. As soon as I click the element in navigation drawer to start that fragment, my navigation drawer stops working even after the asynctask is finished. I am able to click on navigation drawer and open it , but whenever I click on some other item in navigation drawer, it just closes without loading that fragment associated with that item in nav drawer.
main activity code:
package com.example.home;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import java.io.File;
import java.io.IOException;
import java.net.HttpCookie;
import java.net.URI;
import java.net.URISyntaxException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import org.apache.http.cookie.Cookie;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.example.fmapp.R;
import com.example.fmapp.StartActivity;
import com.example.fmapp.R.id;
import com.example.fmapp.R.layout;
import com.example.fmapp.R.menu;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.Parcelable;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.database.Cursor;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
#SuppressLint("NewApi")
public class Home extends Activity implements ActionBar.OnNavigationListener{
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private String[] mDrawerTitles;
static ProgressBar bar;
private String mCurrentPhotoPath;
private final static int FILECHOOSER_RESULTCODE=1;
//public AsyncHttpUpload uploadThread = null;
public ArrayAdapter<String> adapter = null;
#SuppressLint("NewApi")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
Log.i("start","started");
/*
if ((savedInstanceState != null) && (savedInstanceState.getString("currPath")) != null){
mCurrentPhotoPath = savedInstanceState.getString("currPath");
}
*/
bar = (ProgressBar) this.findViewById(R.id.progressBar);
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
if (UserInfo.userId == null){
//fetchUserData();
}
else{
//UserInfo.populateSpinner(adapter);
}
mTitle = mDrawerTitle = getTitle();
mDrawerTitles = getResources().getStringArray(R.array.planets_array);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// set a custom shadow that overlays the main content when the drawer opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// set up the drawer's list view with items and click listener
mDrawerList.setAdapter(new ArrayAdapter<String>(this,
R.layout.drawer_list_item, mDrawerTitles));
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the sliding drawer and the action bar app icon
mDrawerToggle = new ActionBarDrawerToggle(
this, /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.drawer_open, /* "open drawer" description for accessibility */
R.string.drawer_close /* "close drawer" description for accessibility */
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
selectItem(0);
}
}
#SuppressLint("NewApi")
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.home, menu);
//MenuItem item = menu.findItem(R.id.accounts_spinner);
return super.onCreateOptionsMenu(menu);
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
switch (item.getItemId()) {
case R.id.action_logout:
logOut();
return true;
case R.id.action_change_pw:
Intent intent = new Intent(this, ChangePw.class);
this.startActivity(intent);
return true;
// case R.id.accounts_spinner:
// Log.i("spinner","spinner click");
// return true;
default:
return super.onOptionsItemSelected(item);
}
}
#SuppressLint("NewApi")
private void logOut() {
// TODO Auto-generated method stub
Log.i("logout","to logout");
//clear data
UserInfo.chosenAccount = null;
//clear client cookies
String cookieString = "";
Log.i("number of cookies",Integer.toString(StartActivity.cookieManager.getCookieStore().getCookies().size()));
if(StartActivity.cookieManager.getCookieStore().getCookies().size() != 0){
//HttpCookie cookie = (HttpCookie) StartActivity.cookieManager.getCookieStore().getCookies().toArray()[0];
//HttpCookie cookie = (HttpCookie) StartActivity.cookieManager.getCookieStore().getCookies().get(0);
int login_cookie_index = 0;
List<HttpCookie> cookieList = (List<HttpCookie>) StartActivity.cookieManager.getCookieStore().getCookies();
//TODO: search for ltsid cookie
for (int cookie_iter = 0; cookie_iter < cookieList.size(); cookie_iter++){
if((cookieList.get(cookie_iter).getName()).equals("ltsid")){
login_cookie_index = cookie_iter;
break;
}
}
HttpCookie cookie = cookieList.get(login_cookie_index);
cookieString = cookie.getValue();
StartActivity.cookieManager.getCookieStore().removeAll();
}
//clear server sessionId
JSONObject data = new JSONObject();
JSONObject name = new JSONObject();
JSONArray arg = new JSONArray();
try{
data.put("requestCommand", "LogOut");
name.put("name","sessionId");
name.put("type", "String");
name.put("value", cookieString);
arg.put(name);
data.put("args", arg);
String finaldata = data.toString();
new AsyncHttpLogout(this).execute(finaldata);
} catch (JSONException e2) {
e2.printStackTrace();
}
this.finish();
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(event.getAction() == KeyEvent.ACTION_DOWN){
switch(keyCode)
{
case KeyEvent.KEYCODE_BACK:
finish();
return true;
} //TODO:can go forward
}
return super.onKeyDown(keyCode, event);
}
#SuppressLint("NewApi")
private void fetchUserData() {
int login_cookie_index = 0;
List<HttpCookie> cookieList = (List<HttpCookie>) StartActivity.cookieManager.getCookieStore().getCookies();
//TODO: search for ltsid cookie
for (int cookie_iter = 0; cookie_iter < cookieList.size(); cookie_iter++){
if((cookieList.get(cookie_iter).getName()).equals("ltsid")){
login_cookie_index = cookie_iter;
break;
}
}
HttpCookie cookie = cookieList.get(login_cookie_index);
JSONObject data = new JSONObject();
JSONObject sid = new JSONObject();
JSONArray arg = new JSONArray();
try {
data.put("requestCommand","FetchInfo");
sid.put("name","sessionId");
sid.put("type", "String");
sid.put("value", cookie.getValue());
arg.put(sid);
data.put("args", arg);
} catch (JSONException e2) {
e2.printStackTrace();
}
Log.i("fetch data",data.toString());
String finaldata = data.toString();
//View mySpinnerView = this.findViewById(R.id.accounts_spinner);
new AsyncGetAccountInfo(this,adapter).execute(finaldata);
}
#Override
public boolean onNavigationItemSelected(int position, long itemId) {
Log.i("arg0",Integer.toString(position));
//Log.i("arg1",Long.toString(itemId));
//UserInfo.chosenAccount = UserInfo.accountArray.get(position);
//TODO: fix default account
return false;
}
#Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
// Save UI state changes to the savedInstanceState.
// This bundle will be passed to onCreate if the process is
// killed and restarted.
savedInstanceState.putString("currPath", mCurrentPhotoPath);
//savedInstanceState.
// etc.
}
/*
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}
*/
private class DrawerItemClickListener implements ListView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
}
private void selectItem(int position) {
// update the main content by replacing fragments
if (position ==0){
Fragment fragment = new OrderForm();
Bundle args = new Bundle();
args.putInt(OrderForm.ARG_LIST_INDEX, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mDrawerTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
else if (position ==1){
Fragment fragment = new ServicesGrid();
Bundle args = new Bundle();
args.putInt(ServicesGrid.ARG_LIST_INDEX, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mDrawerTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
else if (position ==2){
Fragment fragment = new UserProfile();
Bundle args = new Bundle();
args.putInt(UserProfile.ARG_LIST_INDEX, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mDrawerTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
else if (position ==3){
Fragment fragment = new OrderList();
Bundle args = new Bundle();
args.putInt(OrderList.ARG_LIST_INDEX, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mDrawerTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
else if (position ==4){
}
else{
Fragment fragment = new PlanetFragment();
Bundle args = new Bundle();
args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
fragment.setArguments(args);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
setTitle(mDrawerTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
}
}
#Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/* Called whenever we call invalidateOptionsMenu() */
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// If the nav drawer is open, hide action items related to the content view
//boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
//menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
return super.onPrepareOptionsMenu(menu);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
public static class PlanetFragment extends Fragment {
public static final String ARG_PLANET_NUMBER = "planet_number";
public PlanetFragment() {
// Empty constructor required for fragment subclasses
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_planet, container, false);
int i = getArguments().getInt(ARG_PLANET_NUMBER);
String planet = getResources().getStringArray(R.array.planets_array)[i];
int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
"drawable", getActivity().getPackageName());
//((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);
getActivity().setTitle(planet);
return rootView;
}
}
}
The problematic fragment is with position =3, the fragment's code:
package com.example.home;
import java.io.File;
import java.io.IOException;
import java.net.HttpCookie;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.example.fmapp.R;
import com.example.fmapp.StartActivity;
import android.app.Fragment;
import android.app.ListFragment;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class OrderList extends ListFragment {
public static final String ARG_LIST_INDEX = "planet_number";
public OrderList(){
}
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_orderlist, container, false);
int i = getArguments().getInt(ARG_LIST_INDEX);
fetchOrderInfo();
String planet = getResources().getStringArray(R.array.planets_array)[i];
int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
"drawable", getActivity().getPackageName());
//((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);
getActivity().setTitle(planet);
return rootView;
}
public void fetchOrderInfo() {
// TODO Auto-generated method stub
int login_cookie_index = 0;
List<HttpCookie> cookieList = (List<HttpCookie>) StartActivity.cookieManager.getCookieStore().getCookies();
//TODO: search for ltsid cookie
for (int cookie_iter = 0; cookie_iter < cookieList.size(); cookie_iter++){
if((cookieList.get(cookie_iter).getName()).equals("ltsid")){
login_cookie_index = cookie_iter;
break;
}
}
HttpCookie cookie = cookieList.get(login_cookie_index);
JSONObject data = new JSONObject();
JSONObject sid = new JSONObject();
JSONArray arg = new JSONArray();
try {
data.put("requestCommand","GetRequestInfo");
sid.put("name","sessionId");
sid.put("type", "String");
sid.put("value", cookie.getValue());
arg.put(sid);
data.put("args", arg);
} catch (JSONException e2) {
e2.printStackTrace();
}
Log.i("fetch data",data.toString());
String finaldata = data.toString();
//View mySpinnerView = this.findViewById(R.id.accounts_spinner);
new AsyncFetchUserOrders(getActivity(),this).execute(finaldata);
return;
}
/*
public void onListItemClick(ListView l, View v, int position, long id) {
Log.i("list click","list item click");
}
*/
public void populateAdapter(ArrayList<OrderObj> arrayOrderObj) {
ArrayAdapter<OrderObj> OrderList = new OrderAdapter(getActivity(), arrayOrderObj);
setListAdapter(OrderList);
}
}
Note that if I comment out asynctask line, the nav drawer works fine.
Now the asynctask code:
package com.example.home;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.util.ArrayList;
import com.example.fmapp.GlobalVars;
import com.example.fmapp.JsonUtil;
import android.annotation.SuppressLint;
import android.app.ListFragment;
import android.content.Context;
import android.os.AsyncTask;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ProgressBar;
import android.widget.Toast;
public class AsyncFetchUserOrders extends AsyncTask<String,Boolean,Integer> {
protected static String USER_SERVER = GlobalVars.USER_SERVER;
private int errorCode = -1;
ProgressBar bar = Home.bar;
private Context mainContext;
private OrderList orderFragment;
//private Arra
private ArrayAdapter<String> adapter;
public ArrayList<OrderObj> arrayOrderObj = new ArrayList<OrderObj>();// TODO: populate this shit
private String toastMsg = null;
public AsyncFetchUserOrders(Context mainContext, OrderList orderFragment) {
this.mainContext = mainContext;
this.orderFragment = orderFragment;
}
protected void onPreExecute(){
bar.setVisibility(View.VISIBLE);
}
#SuppressLint("NewApi")
#Override
protected Integer doInBackground(String... params) {
URL url = null;
Log.i("req data",params[0]);
try {
url = new URL(USER_SERVER);
} catch (MalformedURLException e1) {
e1.printStackTrace();
}
HttpURLConnection urlConnection = null;
try {
urlConnection = (HttpURLConnection) url.openConnection();
} catch (IOException e1) {
e1.printStackTrace();
}
urlConnection.setReadTimeout( 10000 /*milliseconds*/ );
urlConnection.setConnectTimeout( 15000 /* milliseconds */ );
//urlConnection.setRequestProperty("X-Requested-With", "XMLHttpRequest");
urlConnection.setRequestProperty("Connection", "Keep-Alive");
try {
urlConnection.setDoOutput(true);
try {
urlConnection.setRequestMethod("POST");
} catch (ProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
urlConnection.connect();
OutputStream os = urlConnection.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
writer.write(params[0]);
writer.close();
os.close();
} catch (IOException e) {
e.printStackTrace();
}
//response:
try { //parse errorCode
if (urlConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
String response = urlConnection.getResponseMessage();
/*
InputStream responseStream = new BufferedInputStream(urlConnection.getInputStream());
BufferedReader responseStreamReader = new BufferedReader(new InputStreamReader(responseStream));
String line = "";
StringBuilder stringBuilder = new StringBuilder();
while ((line = responseStreamReader.readLine()) != null) {
stringBuilder.append(line);
Log.i("line",line);
}
responseStreamReader.close();
*/
BufferedReader in = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
String inputLine;
StringBuffer stringBuilder = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
stringBuilder.append(inputLine);
}
in.close();
String resp = stringBuilder.toString();
Log.i("resp",resp);
processResp(resp);
}
} catch (IOException e) {
e.printStackTrace();
}
}
finally {
urlConnection.disconnect();
}
return 1;
}
protected void onProgressUpdate(Integer... progress) {
}
protected void onPostExecute(Integer result) {
//Log.i("postexec","in post execute");
bar.setVisibility(View.GONE);
Toast toast = Toast.makeText(mainContext, toastMsg, Toast.LENGTH_SHORT);
toast.show();
if (JsonUtil.authSucess == false){
}
else{
// Imp TODO : get to new Activity
Log.i("ltid","populate spinner");
//IMP TODO :UserInfo.populateSpinner(adapter);
JsonUtil.authSucess = false;
/*
if (arrayOrderObj != null){
ArrayAdapter<OrderObj> OrderList = new OrderAdapter(mainContext, arrayOrderObj);
orderFragment.setListAdapter(OrderList);
}*/
}
//this.cancel(true);
}
/*
public void onStop() {
//super.onStop();
if(this!=null){
this.cancel(true);
}
}
*/
private void processResp(String resp) {
errorCode = JsonUtil.processRespForErrorCode(resp);
if (errorCode == 0){
JsonUtil.authSucess = true;
toastMsg = "Order info received";
//TODO: parse JSON and populate user orderinfo info
Log.i("orders", "to populate Order");
JsonUtil.populateOrderInfo(resp,arrayOrderObj);
//Log.i("fname",UserInfo.chosenAccount.firstName);
/*
ArrayAdapter<OrderObj> OrderList = new OrderAdapter(mainContext, arrayOrderObj);
orderFragment.setListAdapter(OrderList);
*/
//orderFragment.populateAdapter(arrayOrderObj);
}
else{
toastMsg = "Something wrong";
}
}
}
Once again, nothing fancy here. still cant figure out what is making the navigation drawer to just close and not start the fragment, if it is clicked on item to start another fragment.
Thanks.
I guess it will be the Home.bar covers your fragment? Maybe you should use ProgressBar.show() or ProgressBar.dismiss() to control the visibility of the progressbar
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.
I get the Id for a parse object from a previous activity and store it in "obj"
I know the Id is being passed by checking but am getting null pointer exceptions because my four strings restName,restAddress,restCuisine and restLocation are empty even after i try assigning the corresponding values by my parse query.
package com.example.gastronomaapp;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.parse.GetCallback;
import com.parse.ParseException;
import com.parse.ParseObject;
import com.parse.ParseQuery;
public class SingleRestraunt extends ActionBarActivity {
private GoogleMap map;
TextView resteName, resteCuisine, resteLocation, resteAddress;
String restName = "nothing", obj, restCuisine = "nothing",
restLocation = "nothing", restAddress = "nothing";
Double Lang, Long;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_single_restraunt);
Intent i = getIntent();
obj = i.getStringExtra("restName");
getDetails(obj);
}
private void getDetails(String obj) {
ParseQuery<ParseObject> query = ParseQuery.getQuery("Restraunt");
query.getInBackground(obj, new GetCallback<ParseObject>() {
#Override
public void done(ParseObject object, ParseException e) {
if (e == null) {
restName = object.getString("Name");
restCuisine = object.getString("Cuisine");
restLocation = object.getString("Location");
restAddress = object.getString("Address");
Lang = object.getDouble("Lat");
Long = object.getDouble("Long");
} else {
e.printStackTrace();
}
}
});
// prepareMap(Lang, Long);
addData();
}
public void addData() {
resteName = (TextView) findViewById(R.id.restrauntName);
resteCuisine = (TextView) findViewById(R.id.restrauntCuisine);
resteLocation = (TextView) findViewById(R.id.restrauntLocation);
resteAddress = (TextView) findViewById(R.id.restrauntAddress);
resteName.setText(restName);
resteCuisine.setText(restCuisine);
resteLocation.setText(restLocation);
resteAddress.setText(restAddress);
}
public void prepareMap(Double Lang, Double Long) {
final LatLng REST = new LatLng(Lang, Long);
map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map))
.getMap();
#SuppressWarnings("unused")
Marker hamburg = map.addMarker(new MarkerOptions().position(REST)
.title("Here"));
map.moveCamera(CameraUpdateFactory.newLatLngZoom(REST, 15));
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.single_restraunt, 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);
}
public void Submit(View v) {
final EditText edit = (EditText) findViewById(R.id.review);
final EditText edit1 = (EditText) findViewById(R.id.rName);
String rName = edit1.getText().toString();
String review = edit.getText().toString();
ParseObject newReview = new ParseObject("Reviews");
newReview.put("Name", rName);
newReview.put("review", review);
newReview.saveInBackground();
}
}
I added the nothing value to all my strings initially to debug. And when running promptly the nothing is printed indicating that the query is not making any change to my strings.Any suggestions?
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?