Develop Reference

Login check on every single click

I have a listview which consist of image.Now i want to check whether user is logged in or not for every image click.
Here is an CustomStatusGrid.java:
package com.example.kalpesh.statuscollection.Status.Adapter;
import java.util.ArrayList;
import static com.example.kalpesh.statuscollection.LoginActivity.MY_PREFS_NAME;
/**
* Created by Kalpesh on 12/9/2017.
*/
public class CustomStatusGrid extends BaseAdapter {
private Context mContext;
ArrayList<StatusFrmCatResponse_Model> arrayList = new ArrayList<>();
public static final String MY_PREFS_NAME = "MyPrefsFile";
protected static final SharedPreferences settings = null;
public CustomStatusGrid(Context c, ArrayList<StatusFrmCatResponse_Model> arrayList) {
mContext = c;
this.arrayList = arrayList;
}
public int getCount() {
// TODO Auto-generated method stub
return arrayList.size();
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View grid;
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
grid = new View(mContext);
grid = inflater.inflate(R.layout.grid_status, null);
TextView txt_StatusName = (TextView) grid.findViewById(R.id.txt_StatusName);
txt_StatusName.setText(arrayList.get(position).getStatusName());
//TextView txt_status = (TextView) grid.findViewById(R.id.txt_StatusId);
//final String StatusID =txt_status.toString();
ImageView imageClick = (ImageView) grid.findViewById(R.id.ImgAddtoFav);
imageClick.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
}
});
}
else {
grid = (View) convertView;
}
return grid;
}
}
Here is an LoginActivity.java :
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
ArrayList<LoginUserResponse_Model> arrayList=new ArrayList<>();
private static final String TAG = LoginActivity.class.getSimpleName();
private EditText editTextUsername, editTextPassword;
private UserInfo userInfo;
private Session session;
private Button login;
public static final String MY_PREFS_NAME = "MyPrefsFile";
protected static final SharedPreferences settings = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
editTextUsername = (EditText) findViewById(R.id.email);
editTextPassword = (EditText) findViewById(R.id.password);
userInfo = new UserInfo(this);
login = (Button)findViewById(R.id.login);
login.setOnClickListener(this);
findViewById(R.id.link_Register).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//if user pressed on login
//we will open the login screen
finish();
startActivity(new Intent(LoginActivity.this, RegisterActivity.class));
}
});
}
private void login(final String email, final String password){
final String username = editTextUsername.getText().toString();
final String password1 = editTextPassword.getText().toString();
//validating inputs
if (TextUtils.isEmpty(username))
{
editTextUsername.setError("Please enter your Email");
editTextUsername.requestFocus();
return;
}
/* if (!android.util.Patterns.EMAIL_ADDRESS.matcher(Email).matches()) {
email.setError("Enter a valid email");
email.requestFocus();
return;
}*/
if (TextUtils.isEmpty(password1))
{
editTextPassword.setError("Please enter your password");
editTextPassword.requestFocus();
return;
}
// Tag used to cancel the request
String tag_string_req = "req_login";
//progressDialog.setMessage("Logging in...");
// progressDialog.show();
String URL = "http://api.statuscollection.in/api/login";
StringRequest strReq = new StringRequest(Request.Method.POST,
URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.wtf(TAG, "Login Response: " + response.toString());
try {
JSONObject jsonObject = new JSONObject(response);
JSONObject datajsonObject = jsonObject.getJSONObject("data");
LoginUserResponse_Model getDetailStatusModel= new LoginUserResponse_Model();
getDetailStatusModel.setCostamarId(datajsonObject.getString("CostamarId"));
getDetailStatusModel.setEmail(datajsonObject.getString("Email"));
getDetailStatusModel.setPassword(datajsonObject.getString("Password"));
String CostamarId = getDetailStatusModel.setCostamarId(datajsonObject.getString("CostamarId"));
Log.wtf("LoginActivity", "CostamarId " + datajsonObject.getString("CostamarId"));
Log.wtf("LoginActivity", "Email " + datajsonObject.getString("Email"));
Log.wtf("LoginActivity", "Password " + datajsonObject.getString("Password"));
Toast.makeText(LoginActivity.this, "You are Login Successfuly !!!", Toast.LENGTH_LONG).show();
// String CID =arrayList.get(CostamarId);
SharedPreferences settings = getSharedPreferences(MY_PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean("logged", true);
// set it to false when the user is logged out
editor.putString("CostamarId",CostamarId);
// Commit the edits!
editor.commit();
SharedPreferences.Editor editor1 = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE).edit();
editor1.putString("CostamarId",CostamarId);
Intent intent = new Intent(LoginActivity.this,ForgetPasswordActivity.class);
//intent.putExtra("CUSTID",CostamarId);
startActivity(intent);
finish();
} catch (JSONException e) {
// JSON error
e.printStackTrace();
toast("Json error: " + e.getMessage());
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Login Error: " + error.getMessage());
toast("Unknown Error occurred");
//progressDialog.hide();
//progressDialog.hide();
//progressDialog.hide();
//progressDialog.hide();
}
}) {
#Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<>();
params.put("email", email);
params.put("password", password);
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<>();
// headers.put("Content-Type", "application/x-www-form-urlencoded");
headers.put("Authentication", "5vLGpxfO4_FktAkPB0iM--FQh18USYEG7LWWUCbITpGioOZ16QRxe0JuoryqhMHArMcv-lBleaddcJPG3bsj3m94qOke3uq3mXDtvPUZHFkqm9_3Eub7MYlVCudtd8i_qxnFYQFVV8OTNfQ4w01vDjwBvJI2zVUXl8M-A9YfH09sPslbJKyZUBZBNcAqjSOzeIneaNVPH0WWcBP9xx_GvsvISNLWAM1KWlSia5Kb7Glj2ufmdZwl_XE5h1C_0guL5AkJniyLK1cCFjOXH7dgjJA6vjwgc0ol488TyWPWA19sOzsdPrnuzr724-BK3Z84");
return headers;
}
#Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
};
strReq.setRetryPolicy(
new DefaultRetryPolicy(
DefaultRetryPolicy.DEFAULT_TIMEOUT_MS,
0,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
// Adding request to request queue
MySingleton.getInstance(LoginActivity.this).addToRequestQueue(strReq);
}
private void toast(String x){ Toast.makeText(this, x, Toast.LENGTH_SHORT).show();}
#Override
public void onClick(View v) {
switch (v.getId()){
case R.id.login:
String uName = editTextUsername.getText().toString().trim();
String pass = editTextPassword.getText().toString().trim();
login(uName,pass);
break;
case R.id.buttonRegister:
startActivity(new Intent(this, RegisterActivity.class));
break;
}
}
public void Login_cancel(View view) {
editTextUsername.setText("");
editTextPassword.setText("");
}
}

Transaction ID set correctly, but displayed only a submit later

My code gives correct response and sets transaction ID correctly. But on screen, the ID is missing the first time I submit, and when I go back and submit again, then the ID on screen is the ID of the first transaction.
On the first submit, this is rendered:
MOBILE NUMBER: 9129992929
OPERATOR: AIRTEL
AMOUNT: 344
TRANSACTION ID:
On the second submit, this is rendered:
MOBILE NUMBER: 9129992929
OPERATOR: AIRTEL
AMOUNT: 344
TRANSACTION ID: NUFEC37WD537K5K2P9WX
I want to see the second screen the first time I submit.
Response to the first submit:
D/TID IS: ====>NUFEC37WD537K5K2P9WX D/UID IS:
====>27W3NDW71XRUR83S7RN3 D/Response-------: ------>{"tid":"NUFEC37WD537K5K2P9WX","uid":"27W3NDW71XRUR83S7RN3","status":"ok"}
Response to the second submit:
D/TID IS: ====>18R6YXM82345655ZL3E2 D/UID IS:
====>27W3NDW71XRUR83S7RN3 D/Response-------: ------>{"tid":"18R6YXM82345655ZL3E2","uid":"27W3NDW71XRUR83S7RN3","status":"ok"}
The code generating the response:
public class Prepaid extends Fragment implements View.OnClickListener {
Button submit_recharge;
Activity context;
RadioGroup _RadioGroup;
public EditText number, amount;
JSONObject jsonobject;
JSONArray jsonarray;
ArrayList<String> datalist, oprList;
ArrayList<Json_Data> json_data;
TextView output, output1;
String loginURL = "http://www.www.example.com/operator_details.php";
ArrayList<String> listItems = new ArrayList<>();
ArrayAdapter<String> adapter;
String data = "";
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View rootview = inflater.inflate(R.layout.prepaid, container, false);
submit_recharge = (Button) rootview.findViewById(R.id.prepaid_submit);
number = (EditText) rootview.findViewById(R.id.prenumber);
amount = (EditText) rootview.findViewById(R.id.rechergpre);
submit_recharge.setOnClickListener(this);
context = getActivity();
new DownloadJSON().execute();
return rootview;
}
public void onClick(View v) {
MyApplication myRecharge = (MyApplication) getActivity().getApplicationContext();
final String prepaid_Number = number.getText().toString();
String number_set = myRecharge.setNumber(prepaid_Number);
final String pre_Amount = amount.getText().toString();
String amount_set = myRecharge.setAmount(pre_Amount);
Log.d("amount", "is" + amount_set);
Log.d("number", "is" + number_set);
switch (v.getId()) {
case R.id.prepaid_submit:
if (prepaid_Number.equalsIgnoreCase("") || pre_Amount.equalsIgnoreCase("")) {
number.setError("Enter the number please");
amount.setError("Enter amount please");
} else {
int net_amount_pre = Integer.parseInt(amount.getText().toString().trim());
String ph_number_pre = number.getText().toString();
if (ph_number_pre.length() != 10) {
number.setError("Please Enter valid the number");
} else {
if (net_amount_pre < 10 || net_amount_pre > 2000) {
amount.setError("Amount valid 10 to 2000");
} else {
AsyncTaskPost runner = new AsyncTaskPost(); // for running AsyncTaskPost class
runner.execute();
Intent intent = new Intent(getActivity(), Confirm_Payment.class);
startActivity(intent);
}
}
}
}
}
}
/*
*
* http://pastie.org/10618261
*
*/
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
MyApplication myOpt = (MyApplication) getActivity().getApplicationContext();
protected Void doInBackground(Void... params) {
json_data = new ArrayList<Json_Data>();
datalist = new ArrayList<String>();
// made a new array to store operator ID
oprList = new ArrayList<String>();
jsonobject = JSONfunctions
.getJSONfromURL(http://www.www.example.com/operator_details.php");
Log.d("Response: ", "> " + jsonobject);
try {
jsonarray = jsonobject.getJSONArray("data");
for (int i = 0; i < jsonarray.length(); i++) {
jsonobject = jsonarray.getJSONObject(i);
Json_Data opt_code = new Json_Data();
opt_code.setName(jsonobject.optString("name"));
opt_code.setId(jsonobject.optString("ID"));
json_data.add(opt_code);
datalist.add(jsonobject.optString("name"));
oprList.add(jsonobject.getString("ID"));
}
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
protected void onPostExecute(Void args) {
final Spinner mySpinner = (Spinner) getView().findViewById(R.id.operator_spinner);
mySpinner
.setAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_spinner_dropdown_item,
datalist));
mySpinner
.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0,
View arg1, int position, long arg3) {
String opt_code = oprList.get(position);
String selectedItem = arg0.getItemAtPosition(position).toString();
Log.d("Selected operator is==", "======>" + selectedItem);
Log.d("Selected Value is======", "========>" + position);
Log.d("Selected ID is======", "========>" + opt_code);
if (opt_code == "8" || opt_code == "14" || opt_code == "35" || opt_code == "36" || opt_code == "41" || opt_code == "43") // new code
{
_RadioGroup = (RadioGroup) getView().findViewById(R.id.radioGroup);
_RadioGroup.setVisibility(View.VISIBLE);
int selectedId = _RadioGroup.getCheckedRadioButtonId();
// find the radiobutton by returned id
final RadioButton _RadioSex = (RadioButton) getView().findViewById(selectedId);
_RadioSex.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (null != _RadioSex && isChecked == false) {
Toast.makeText(getActivity(), _RadioSex.getText(), Toast.LENGTH_LONG).show();
}
Toast.makeText(getActivity(), "Checked In button", Toast.LENGTH_LONG).show();
Log.d("Checked In Button", "===>" + isChecked);
}
});
}
String user1 = myOpt.setOperator(opt_code);
String opt_name = myOpt.setOpt_provider(selectedItem);
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
}
private class AsyncTaskPost extends AsyncTask<String, Void, Void> {
MyApplication mytid = (MyApplication)getActivity().getApplicationContext();
String prepaid_Number = number.getText().toString();
String pre_Amount = amount.getText().toString();
protected Void doInBackground(String... params) {
String url = "http://www.example.com/android-initiate-recharge.php";
StringRequest postRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
public void onResponse(String response) {
try {
JSONObject json_Response = new JSONObject(response);
String _TID = json_Response.getString("tid");
String _uid = json_Response.getString("uid");
String _status = json_Response.getString("status");
String tid_m =mytid.setTransaction(_TID);
Log.d("TID IS","====>"+tid_m);
Log.d("UID IS", "====>" + _uid);
} catch (JSONException e) {
e.printStackTrace();
}
Log.d("Response-------", "------>" + response);
}
},
new Response.ErrorListener() {
public void onErrorResponse(VolleyError error) {
Log.e("Responce error==","===>"+error);
error.printStackTrace();
}
}
) {
MyApplication uid = (MyApplication) getActivity().getApplicationContext();
final String user = uid.getuser();
MyApplication operator = (MyApplication) getActivity().getApplicationContext();
final String optcode = operator.getOperator();
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<>();
// the POST parameters:
params.put("preNumber", prepaid_Number);
params.put("preAmount", pre_Amount);
params.put("key", "XXXXXXXXXX");
params.put("whattodo", "prepaidmobile");
params.put("userid", user);
params.put("category", optcode);
Log.d("Value is ----------", ">" + params);
return params;
}
};
Volley.newRequestQueue(getActivity()).add(postRequest);
return null;
}
protected void onPostExecute(Void args) {
}
}
class Application
private String _TId;
public String getTId_name() {
return _TId;
}
public String setTId_name(String myt_ID) {
this._TId = myt_ID;
Log.d("Application set TID", "====>" + myt_ID);
return myt_ID;
}
class Confirm_pay
This is where the ID is set.
MyApplication _Rechargedetail =(MyApplication)getApplicationContext();
confirm_tId =(TextView)findViewById(R.id._Tid);
String _tid =_Rechargedetail.getTId_name();
confirm_tId.setText(_tid);

Because you have used Volley library which is already asynchronous, you don't have to use AsyncTask anymore.
Your code can be updated as the following (not inside AsyncTask, direct inside onCreate for example), pay attention to // update TextViews here...:
...
String url = "http://www.example.com/index.php";
RequestQueue requestQueue = Volley.newRequestQueue(this);
StringRequest postRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject json_Response = new JSONObject(response);
String _TID = json_Response.getString("tid");
String _uid = json_Response.getString("uid");
String _status = json_Response.getString("status");
String tid_m =mytid.setTId_name(_TID);
Log.d("TID IS","====>"+tid_m);
Log.d("UID IS","====>"+_uid);
// update TextViews here...
txtTransId.setText(_TID);
txtStatus.setText(_status);
...
} catch (JSONException e) {
e.printStackTrace();
}
Log.d("Response-------", "------>" + response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Responce error==","===>"+error);
error.printStackTrace();
}
}
requestQueue.add(postRequest);
...
P/S: since the reponse data is a JSONObject, so I suggest you use JsonObjectRequest instead of StringRequest. You can read more at Google's documentation.
Hope it helps!

Your line of code should be executed after complete execution of network operation and control comes in onPostExecute(); of your AsyncTask.
confirm_tId.setText(_tid);

How to load GridView images with AsyncTask?

I have, below the following fragment that populates a gridview with Bitmaps from URLs. The problem is that I know it's very 'heavy' work and done on the UI Thread so it's slowing the fragment down when loading the grid.
I've read that an AsyncTask is needed to carry out the 'heavy' work in the background but I can't find anything that seems to fit with what I want.
public class HomeFragment extends Fragment {
protected static final String TAG = null;
public HomeFragment(){}
GridView gridView;
private GridViewAdapter gridAdapter;
private SQLiteHandler db;
private SwipeRefreshLayout swipeLayout;
private ProgressDialog pDialog;
GPSTracker gps;
String uid;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
db = new SQLiteHandler(getActivity());
gridAdapter = new GridViewAdapter(getActivity(), R.layout.grid_item_layout, getData());
pDialog = new ProgressDialog(getActivity());
pDialog.setCancelable(true);
uid="1";
String email = db.getFromTable(getActivity(), "email", SQLiteHandler.TABLE_LOGIN, "WHERE _id="+uid);
String from_age = db.getFromTable(getActivity(), "from_age", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
String to_age = db.getFromTable(getActivity(), "to_age", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
String distance = db.getFromTable(getActivity(), "distance", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
String unit = db.getFromTable(getActivity(), "unit", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
String men = db.getFromTable(getActivity(), "men", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
String women = db.getFromTable(getActivity(), "women", SQLiteHandler.TABLE_SETTINGS, "WHERE uid="+uid);
fetchUsers(email, from_age, to_age, distance, unit, men, women);
final View rootView = inflater.inflate(R.layout.fragment_home, container, false);
//getActivity().getActionBar().setTitle(R.string.home);
gridView = (GridView) rootView.findViewById(R.id.gridView);
gridView.setAdapter(gridAdapter);
gridView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
ImageItem item = (ImageItem) parent.getItemAtPosition(position);
ImageView imageView = (ImageView) v.findViewById(R.id.image);
//Create intent
Intent intent = new Intent(getActivity(), DetailsActivity.class);
int[] screenLocation = new int[2];
imageView.getLocationOnScreen(screenLocation);
intent.putExtra("left", screenLocation[0]).
putExtra("top", screenLocation[1]).
putExtra("width", imageView.getWidth()).
putExtra("height", imageView.getHeight()).
putExtra("uid", item.getUid());
startActivity(intent);
}
});
swipeLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipe_container);
swipeLayout.setOnRefreshListener(new OnRefreshListener() {
#Override
public void onRefresh() {
//my update process
Fragment currentFragment = getFragmentManager().findFragmentByTag("0");
FragmentTransaction fragTransaction = getFragmentManager().beginTransaction();
fragTransaction.detach(currentFragment);
fragTransaction.attach(currentFragment);
fragTransaction.commit();
}
});
return rootView;
}
// Prepare some dummy data for gridview
private ArrayList<ImageItem> getData() {
final ArrayList<ImageItem> imageItems = new ArrayList<>();
Cursor cursor = db.getAllRows("*", SQLiteHandler.TABLE_USERS, "");
//Query local DB to initialize settings screen
for(cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()){
String uid = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_UID));
String name = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_NAME));
String dob = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_DOB));
//String gender = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_GENDER));
String photourl = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_PHOTOURL));
//String distance = cursor.getString(cursor.getColumnIndex(SQLiteHandler.KEY_DISTANCE));
String[] birthdayArr = dob.split("-");
int age = getAge(Integer.parseInt(birthdayArr[0]), Integer.parseInt(birthdayArr[1]), Integer.parseInt(birthdayArr[2]));
Bitmap bitmap = getBitmapFromURL(photourl);
imageItems.add(new ImageItem(bitmap, name+" - " + age, uid));
}
return imageItems;
}
public static Bitmap getBitmapFromURL(String src) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
try {
URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
// Log exception
return null;
}
}
public int getAge(int year, int month, int day) {
//int nowMonth = now.getMonth()+1;
int nowMonth = Calendar.getInstance().get(Calendar.DAY_OF_MONTH);
//int nowYear = now.getYear()+1900;
int nowYear = Calendar.getInstance().get(Calendar.YEAR);
int result = nowYear - year;
if (month > nowMonth) {
result--;
}
else if (month == nowMonth) {
int nowDay = Calendar.getInstance().get(Calendar.DATE);
if (day > nowDay) {
result--;
}
}
return result;
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
Log.i("hideDialog", "called");
if (pDialog.isShowing())
pDialog.dismiss();
}
public void fetchUsers(final String email, final String agefrom, final String ageto, final String distance, final String distanceUnit, final String interested_men, final String interested_wmen){
// Tag used to cancel the request
gps = new GPSTracker(getActivity());
String tag_string_req = "req_login";
pDialog.setMessage("Finding users ...");
showDialog();
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_LOGIN, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.d(TAG, "Fetch Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
int success = jObj.getInt("success");
JSONArray users = jObj.getJSONArray("users");
// Check for error node in json
if (success == 1) {
//Log.i("success", users+"");
if (users.length() == 0) {
Toast.makeText(getActivity(), "No users found! \nPlease try again soon.", Toast.LENGTH_LONG).show();
db.emptyTable(SQLiteHandler.TABLE_USERS);
}else{
db.emptyTable(SQLiteHandler.TABLE_USERS);
for (int i = 0; i < users.length(); i++) {
JSONObject user = users.getJSONObject(i);
String uid = user.getString("uid");
String name = user.getString("name");
String dob = user.getString("dob");
String gender = user.getString("gender");
String photourl = user.getString("photoUrl");
String distance = user.getString("distance");
String[][] userValues = {
{ SQLiteHandler.KEY_UID, uid},
{ SQLiteHandler.KEY_NAME, name},
{ SQLiteHandler.KEY_DOB, dob},
{ SQLiteHandler.KEY_GENDER, gender},
{ SQLiteHandler.KEY_PHOTOURL, photourl},
{ SQLiteHandler.KEY_DISTANCE, distance}
};
db.insert(SQLiteHandler.TABLE_USERS, userValues);
}
}
} else {
// Error in login. Get the error message
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getActivity(),errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Login Error: " + error.getMessage());
Toast.makeText(getActivity(),
error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
#Override
protected Map<String, String> getParams() {
// Posting parameters to login url
//$lat, $lng, $email, $agefrom, $ageto, $distance, $distanceUnit, $interested_men, $interested_wmen
Map<String, String> params = new HashMap<String, String>();
params.put("tag", "login");
params.put("lat", gps.getLatitude()+"");
params.put("lng", gps.getLongitude()+"");
params.put("email", email);
params.put("agefrom", agefrom);
params.put("ageto", ageto);
params.put("distance", distance);
params.put("distanceUnit", distanceUnit);
params.put("interested_men", interested_men+"");
params.put("interested_wmen", interested_wmen+"");
params.put("fetch", "y");
Log.i(TAG, params+"");
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
}

How to load GridView images with AsyncTask?
Downloading images as Bitmap in HomeFragment. Use NetworkImageView from Volley in layout of GridView item for loading images in GridView.
Instead of storing Bitmap, store image url in ImageItem.
See following tutorial for more help:
Using NetworkImageView

AsynTask class
public class GridDataAsyncTask extends AsyncTask<GridDataAsyncTask.GridCallback, Void, GridAdapter> {
public interface GridCallback {
void onAdapterReady(GridAdapter adapter);
}
private GridCallback mCallBack;
#Override
protected GridAdapter doInBackground(GridCallback... callbacks) {
mCallBack = callbacks[0];
// TODO get data and create grid adapter
return adapter;
}
#Override
protected void onPostExecute(GridAdapter gridAdapter) {
super.onPostExecute(gridAdapter);
mCallBack.onAdapterReady(gridAdapter);
}
}
Activity
public class GridActivity extends AppCompatActivity implements GridDataAsyncTask.GridCallback {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
new GridDataAsyncTask().execute(this);
}
#Override
public void onAdapterReady(GridAdapter adapter) {
// TODO set adapte to GridView
}
}

Best you can do is use http://developer.android.com/reference/java/util/concurrent/ThreadPoolExecutor.html and make a lru cache and place the images in lru cache.
Example is given in android tutorials
http://developer.android.com/training/displaying-bitmaps/cache-bitmap.html

As suggested by fractalwrench and Budius, Picasso was a very good and VERY easy solution to this. All I had to do was to pass the photo url instead of the entire BitMap through to my GridView adapter and use Picasso.with(context).load(item.getImage()).into(holder.image); to create the BitMap for the image view. This was so easy to implement and gives me exactly what I need. Thaks

list of brands not displaying in a spinner

Hi in the below code I am displaying two spinner one is for displaying brand name and another for displaying model name.
I am getting the response from server like this:
{"RESULT":"SUCCESS","BRANDS":[{"BRANDID":"14","BRANDNAME":"471"},{"BRANDID":"3","BRANDNAME":"ACE"},{"BRANDID":"4","BRANDNAME":"ADLER"},{"BRANDID":"5","BRANDNAME":"ALIEN"},{"BRANDID":"6","BRANDNAME":"ARTISAN-TORO"},{"BRANDID":"7","BRANDNAME":"ASSOCIATED PACIFIC"},{"BRANDID":"8","BRANDNAME":"ASTEX"},{"BRANDID":"9","BRANDNAME":"BERNINA"},{"BRANDID":"10","BRANDNAME":"BONIS"},{"BRANDID":"11","BRANDNAME":"BROTHER"},{"BRANDID":"12","BRANDNAME":"BROTHER "},{"BRANDID":"13","BRANDNAME":"CHANDLER"},{"BRANDID":"15","BRANDNAME":"CINCINNATI"},{"BRANDID":"16","BRANDNAME":"CONSEW"},{"BRANDID":"17","BRANDNAME":"CONSEW\/SEIKO"},{"BRANDID":"18","BRANDNAME":"DENNISON"},{"BRANDID":"19","BRANDNAME":"DURKOPP ADLER"},{"BRANDID":"20","BRANDNAME":"EAGLE"},{"BRANDID":"21","BRANDNAME":"EASTMAN"},{"BRANDID":"22","BRANDNAME":"EASTMAN CARDINAL"},{"BRANDID":"23","BRANDNAME":"ECONOSEW"},{"BRANDID":"1","BRANDNAME":"usha"}]}
Model Response:
{"RESULT":"SUCCESS","MODELS":[{"MODELNAME":"150","MODELID":"2"},{"MODELNAME":"C150WS","MODELID":"3"},{"MODELNAME":"HC720A","MODELID":"4"}
Based on the brand i want to display model names.
java
public class HomeFragment extends Fragment {
public HomeFragment(){}
Fragment fragment = null;
String userId,companyId;
private String brandid = "3";
public static List<LeadResult.Users> list;
public static List<BrandResult.Brands> listBrands;
public static List<ModelResult.Models> listModels;
public static ArrayList<String> listBrands_String;
// public static List<BrandResult.Brands> list1;
String[] brand_name;
Spinner spinner1;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ActionBar actionBar=getActivity().getActionBar();
final View rootView = inflater.inflate(R.layout.layout_ownview, container, false);
spinner1=(Spinner)rootView.findViewById(R.id.brand1);
mTxt_OwnView=(TextView) rootView.findViewById(R.id.txt_OwnView);
mTxt_PublicView =(TextView) rootView.findViewById(R.id.txt_PublicView);
mRel_Ownview=(RelativeLayout)rootView.findViewById(R.id.ownview);
mRel_publicview =(RelativeLayout)rootView.findViewById(R.id.publicview);
listBrands = new ArrayList<BrandResult.Brands>();
listBrands_String = new ArrayList<String>();
listModels = new ArrayList<ModelResult.Models>();
private void getBrands() {
String brandjson = JSONBuilder.getJSONBrand();
String brandurl = URLBuilder.getBrandUrl();
Log.d("url","" + brandurl);
SendToServerTaskBrand taskBrand = new SendToServerTaskBrand(getActivity());
taskBrand.execute(brandurl, brandjson);
Log.d("brandjson", "" + brandjson);
}
private void setBrand(String brandjson)
{
ObjectMapper objectMapper_brand = new ObjectMapper();
try
{
BrandResult brandresult_object = objectMapper_brand.readValue(brandjson, BrandResult.class);
String Brand_result = brandresult_object.getRESULT();
Log.d("Brand_result","" + Brand_result);
if(Brand_result.equals("SUCCESS"))
{
listBrands =brandresult_object.getBRANDS();
spinner_fn();
Log.i("listbrands", " " + listBrands);
// startActivity(new Intent(getActivity().getApplicationContext(), Contact_Activity.class));
}
else
{
Toast.makeText(getActivity().getApplicationContext(), "Unable to load data please try again", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
// return eNames;
}
public class SendToServerTaskBrand extends AsyncTask<String, String, String>
{
private Context mContext = null;
private ProgressDialog mProgressDialog;
public SendToServerTaskBrand(Context context)
{
mContext = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...");
}
#Override
protected String doInBackground(String... params)
{
String Burl = params[0];
String Bjson = params[1];
String Bresult = UrlRequester.post(mContext, Burl, Bjson);
return Bresult;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
setBrand(result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
private void getModels() {
String model_url = URLBuilder.getModelUrl();
String model_json = JSONBuilder.getJSONModel(brandid);
Log.d("model_json", "" + model_json);
SendToServerTaskModel taskModel = new SendToServerTaskModel(getActivity());
taskModel.execute(model_url, model_json);
}
private void setModel(String json)
{
ObjectMapper objectMapperModel = new ObjectMapper();
try
{
ModelResult modelresult_object = objectMapperModel.readValue(json, ModelResult.class);
String model_result = modelresult_object.getRESULT();
Log.d("model_result","" + model_result);
if (model_result.equals("SUCCESS"))
{
listModels =modelresult_object.getMODELS();
Log.i("listmodels", " " + listModels);
// startActivity(new Intent(getActivity().getApplicationContext(), Contact_Activity.class));
}
else
{
Toast.makeText(getActivity().getApplicationContext(), "Unable to load data please try again", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
// return eNames;
}
public class SendToServerTaskModel extends AsyncTask<String, String, String>
{
private Context mContext = null;
private ProgressDialog mProgressDialog;
public SendToServerTaskModel(Context context)
{
mContext = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...");
}
#Override
protected String doInBackground(String... params)
{
String url = params[0];
String json = params[1];
String result = UrlRequester.post(mContext, url, json);
return result;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
setModel(result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
private void spinner_fn() {
for(int i = 0; i < listBrands.size(); i++){
listBrands_String.add(listBrands.get(i).toString());
Log.d("string is",""+ listBrands_String);
}
//ArrayAdapter<String> dataAdapter = ArrayAdapter.createFromResource(getActivity().getApplicationContext()
// ,android.R.layout.simple_spinner_item,listBrands_String);
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(getActivity().getApplicationContext()
,android.R.layout.simple_spinner_item, listBrands_String);
// ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(), R.array.category_array, android.R.layout.simple_spinner_item);
dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(dataAdapter);
spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
Log.e("Position new",""+ listBrands_String.get(position));
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}

how to display dynamic spinner values in android

In the code below, I took two spinners. One is for brand and other for model. But data is not being displaying in spinner. It is not showing any errors but dropdown is also not shown.
Can any one help me?
What is the mistake in the code?
Java
public class HomeFragment extends Fragment {
public HomeFragment(){}
Fragment fragment = null;
String userId,companyId;
private String brandid = "3";
public static List<LeadResult.Users> list;
public static List<BrandResult.Brands> listBrands;
public static List<ModelResult.Models> listModels;
public static ArrayList<String> listBrands_String;
// public static List<BrandResult.Brands> list1;
String[] brand_name;
Spinner spinner1;
private RelativeLayout mRel_Ownview,mRel_publicview;
private LinearLayout mLin_Stock,mLin_Contact;
private TextView mTxt_OwnView,mTxt_PublicView;
private Map<String, String> BrandMap = new HashMap<String, String>();
private RangeSeekBar<Integer> seekBar;
private RangeSeekBar<Integer> seekBar1;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
ActionBar actionBar=getActivity().getActionBar();
actionBar.setTitle("DEVINE MECHINES");
SharedPreferences userPreference = getActivity().getSharedPreferences("UserDate", Context.MODE_PRIVATE);
userId=userPreference.getString("MYID", null);
companyId=userPreference.getString("companyId",null);
final View rootView = inflater.inflate(R.layout.layout_ownview, container, false);
spinner1=(Spinner)rootView.findViewById(R.id.brand1);
mTxt_OwnView=(TextView) rootView.findViewById(R.id.txt_OwnView);
mTxt_PublicView =(TextView) rootView.findViewById(R.id.txt_PublicView);
mRel_Ownview=(RelativeLayout)rootView.findViewById(R.id.ownview);
mRel_publicview =(RelativeLayout)rootView.findViewById(R.id.publicview);
listBrands = new ArrayList<BrandResult.Brands>();
listBrands_String = new ArrayList<String>();
listModels = new ArrayList<ModelResult.Models>();
seekBar = new RangeSeekBar<Integer>(5000, 50000,getActivity());
seekBar.setOnRangeSeekBarChangeListener(new RangeSeekBar.OnRangeSeekBarChangeListener<Integer>() {
#Override
public void onRangeSeekBarValuesChanged(RangeSeekBar<?> bar, Integer minValue, Integer maxValue) {
// handle changed range values
//Log.i(TAG, "User selected new range values: MIN=" + minValue + ", MAX=" + maxValue);
TextView seekMin = (TextView) getView().findViewById(R.id.textSeekMin);
TextView seekMax = (TextView) getView().findViewById(R.id.textSeekMax);
seekMin.setText(minValue.toString());
seekMax.setText(maxValue.toString());
}
});
seekBar1 = new RangeSeekBar<Integer>(5000, 50000,getActivity());
seekBar1.setOnRangeSeekBarChangeListener(new RangeSeekBar.OnRangeSeekBarChangeListener<Integer>() {
#Override
public void onRangeSeekBarValuesChanged(RangeSeekBar<?> bar, Integer minValue, Integer maxValue) {
// handle changed range values
//Log.i(TAG, "User selected new range values: MIN=" + minValue + ", MAX=" + maxValue);
TextView seekMin = (TextView) getView().findViewById(R.id.textSeekMin1);
TextView seekMax = (TextView) getView().findViewById(R.id.textSeekMax1);
seekMin.setText(minValue.toString());
seekMax.setText(maxValue.toString());
}
});
mTxt_OwnView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mRel_publicview.setVisibility(View.GONE);
mTxt_OwnView.setBackgroundColor(getResources().getColor(R.color.light_blue));
mTxt_PublicView.setBackgroundColor(getResources().getColor(R.color.dark_blue));
mTxt_OwnView.setTextColor(getResources().getColor(R.color.text_white));
mTxt_PublicView.setTextColor(getResources().getColor(R.color.light_blue));
mRel_Ownview.setVisibility(View.VISIBLE);
}
});
mTxt_PublicView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mRel_Ownview.setVisibility(View.GONE);
mTxt_PublicView.setBackgroundColor(getResources().getColor(R.color.light_blue));
mTxt_OwnView.setBackgroundColor(getResources().getColor(R.color.dark_blue));
mTxt_OwnView.setTextColor(getResources().getColor(R.color.light_blue));
mTxt_PublicView.setTextColor(getResources().getColor(R.color.text_white));
mRel_publicview.setVisibility(View.VISIBLE);
}
});
String selectedBrandId = BrandMap.get(String.valueOf(spinner1.getSelectedItem()));
// System.out.print(url);
mLin_Stock=(LinearLayout)rootView.findViewById(R.id.stock);
mLin_Stock.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
fragment =new StockFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
});
mLin_Contact =(LinearLayout)rootView.findViewById(R.id.contacts);
mLin_Contact.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// getLead();
fragment = new ContactFragment();
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
getLead();
}
});
// add RangeSeekBar to pre-defined layout
ViewGroup layout = (ViewGroup) rootView.findViewById(R.id.layout_seek);
layout.addView(seekBar);
ViewGroup layout1 = (ViewGroup) rootView.findViewById(R.id.layout_seek1);
layout1.addView(seekBar1);
getBrands();
getModels();
return rootView;
}
private void getBrands() {
String brandjson = JSONBuilder.getJSONBrand();
String brandurl = URLBuilder.getBrandUrl();
Log.d("url", "" + brandurl);
SendToServerTaskBrand taskBrand = new SendToServerTaskBrand(getActivity());
taskBrand.execute(brandurl, brandjson);
//Log.d("brandjson", "" + brandjson);
}
private void setBrand(String brandjson)
{
ObjectMapper objectMapper_brand = new ObjectMapper();
try
{
BrandResult brandresult_object = objectMapper_brand.readValue(brandjson, BrandResult.class);
String Brand_result = brandresult_object.getRESULT();
Log.i("Brand_result","Now" + Brand_result);
if(Brand_result.equals("SUCCESS"))
{
listBrands =brandresult_object.getBRANDS();
Log.i("listbrands", "List Brands" + listBrands);
/* for(int i = 0; i < listBrands.size(); i++){
listBrands_String.add(listBrands.get(i).toString());
Log.d("string is",""+ listBrands_String);
}*/
spinner_fn();
// startActivity(new Intent(getActivity().getApplicationContext(), Contact_Activity.class));
}
else
{
Toast.makeText(getActivity().getApplicationContext(), "Unable to load data please try again", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
// return eNames;
}
public class SendToServerTaskBrand extends AsyncTask<String, String, String>
{
private Context mContext = null;
private ProgressDialog mProgressDialog;
public SendToServerTaskBrand(Context context)
{
mContext = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...");
}
#Override
protected String doInBackground(String... params)
{
String Burl = params[0];
String Bjson = params[1];
String Bresult = UrlRequester.post(mContext, Burl, Bjson);
return Bresult;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
setBrand(result);
Log.i("Result","Brand Result"+result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
private void getModels() {
String model_url = URLBuilder.getModelUrl();
String model_json = JSONBuilder.getJSONModel(brandid);
Log.d("model_json", "" + model_json);
SendToServerTaskModel taskModel = new SendToServerTaskModel(getActivity());
taskModel.execute(model_url, model_json);
}
private void setModel(String json)
{
ObjectMapper objectMapperModel = new ObjectMapper();
try
{
ModelResult modelresult_object = objectMapperModel.readValue(json, ModelResult.class);
String model_result = modelresult_object.getRESULT();
Log.d("model_result","" + model_result);
if (model_result.equals("SUCCESS"))
{
listModels =modelresult_object.getMODELS();
Log.i("listmodels", " " + listModels);
// startActivity(new Intent(getActivity().getApplicationContext(), Contact_Activity.class));
}
else
{
Toast.makeText(getActivity().getApplicationContext(), "Unable to load data please try again", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
// return eNames;
}
public class SendToServerTaskModel extends AsyncTask<String, String, String>
{
private Context mContext = null;
private ProgressDialog mProgressDialog;
public SendToServerTaskModel(Context context)
{
mContext = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...");
}
#Override
protected String doInBackground(String... params)
{
String url = params[0];
String json = params[1];
String result = UrlRequester.post(mContext, url, json);
return result;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
setModel(result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}
private void spinner_fn() {
/*ArrayAdapter<String> dataAdapter = ArrayAdapter.createFromResource(getActivity().getBaseContext(),
listBrands_String, android.R.layout.simple_spinner_item);*/
ArrayAdapter<String> dataAdapter = new ArrayAdapter<String>(getActivity().getApplicationContext()
,android.R.layout.simple_spinner_item, listBrands_String);
// ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(), R.array.category_array, android.R.layout.simple_spinner_item);
//dataAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner1.setAdapter(dataAdapter);
spinner1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long id) {
Log.e("Position new",""+ listBrands_String.get(position));
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}
private void getLead()
{
String url = URLBuilder.getLeadUrl();
String json = JSONBuilder.getJSONLead(userId, companyId);
SendToServerTask task = new SendToServerTask(getActivity());
task.execute(url, json);
}
private void setLead(String json)
{
ObjectMapper objectMapper = new ObjectMapper();
try
{
LeadResult result_object = objectMapper.readValue(json, LeadResult.class);
String lead_result = result_object.getRESULT();
Log.d("lead_result","" + lead_result);
if (lead_result.equals("SUCCESS"))
{
list=result_object.getUSERS();
// startActivity(new Intent(getActivity().getApplicationContext(), Contact_Activity.class));
}
else
{
Toast.makeText(getActivity().getApplicationContext(), "Unable to load data please try again", Toast.LENGTH_SHORT).show();
}
}
catch (Exception e)
{
e.printStackTrace();
}
// return eNames;
}
public class SendToServerTask extends AsyncTask<String, String, String>
{
private Context mContext = null;
private ProgressDialog mProgressDialog;
public SendToServerTask(Context context)
{
mContext = context;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...");
}
#Override
protected String doInBackground(String... params)
{
String url = params[0];
String json = params[1];
String result = UrlRequester.post(mContext, url, json);
return result;
}
#Override
protected void onPostExecute(String result)
{
super.onPostExecute(result);
setLead(result);
if (mProgressDialog.isShowing())
mProgressDialog.dismiss();
}
}