The function onCurrentProfileChanged doesnt get called everytime I logout and login, but if I remove the profiletracker, the profile comes as null for the first time login.How do i resolve the issue?. I have pasted the code below.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SharedPreferenceManager.setApplicationContext(getApplicationContext());
onregister();
SharedPreferenceManager.setPreference("notificationcount", 0);
FacebookSdk.sdkInitialize(this.getApplicationContext());
callbackManager = CallbackManager.Factory.create();
LoginManager.getInstance().registerCallback(callbackManager,
new FacebookCallback<LoginResult>() {
#Override
public void onSuccess(final LoginResult loginResult) {
profileTracker = new ProfileTracker() {
#Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile currentProfile) {
Profile.setCurrentProfile(currentProfile);
profileTracker.stopTracking();
GraphRequest request = GraphRequest.newMeRequest(
AccessToken.getCurrentAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
#Override
public void onCompleted(
JSONObject jsonObject,
GraphResponse response) {
try {
dismissProgressDialog();
final Profile profile = Profile.getCurrentProfile();
SharedPreferenceManager.setPreference("id", profile.getId());
email = jsonObject.getString("email");
gender = jsonObject.getString("gender");
if (mAuthTask == null) {
mAuthTask = new UserLoginTask(email, "", profile.getName(), "facebook", profile.getId(), AccessToken.getCurrentAccessToken().getToken(), gender, getRegistrationId(getApplicationContext()));
//Log.v("token", loginResult.getAccessToken().getToken());
mAuthTask.execute((Void) null);
}
} catch (JSONException exe) {
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,link,email,gender");
request.setParameters(parameters);
request.executeAsync();
}
};
profileTracker.startTracking();
}
#Override
public void onCancel() {
dismissProgressDialog();
LoginManager.getInstance().logOut();
}
#Override
public void onError(FacebookException exception) {
dismissProgressDialog();
LoginManager.getInstance().logOut();
}
});
Have you added this line in your code
LoginManager.getInstance().logInWithReadPermissions(this, Arrays.asList("public_profile,email"));
before call registerCallback?
Related
I'm trying to send a value to the server when the connection doesn't exist, when it connects to the internet it runs fine and is saved to the server and sqlite. but the problem arises when switching state from offline to online. I send one value to the server when the connection is offline but when the state moves to online the value I sent earlier becomes multiple on the server while in the sqlite database only one value is stored.
this is my network state checker class
public class NetworkStateCheckerNama extends BroadcastReceiver {
//context and database helper object
private Context context;
private Database db;
ApiRequestData apiRequestData;
#Override
public void onReceive(Context context, Intent intent) {
this.context = context;
apiRequestData = ServiceGenerator.createBaseService(this.context, ApiRequestData.class);
db = new Database(context);
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
//if there is a network
if (activeNetwork != null) {
//if connected to wifi or mobile data plan
if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI || activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
//getting all the unsynced user
Cursor cursor2 = db.getUnsyncedNama();
if (cursor2.moveToFirst()) {
do {
//calling the method to save the unsynced name to MySQL
Nama(
cursor2.getString(cursor2.getColumnIndexOrThrow(Database.KOLOM_NAMA_COBA)),
cursor2.getString(cursor2.getColumnIndexOrThrow(Database.KOLOM_NIP_COBA))
);
} while (cursor2.moveToNext());
}
}
}
}
private void Nama(final String nama,final String nip) {
//Call call = retrofit.create(APIInterface.class).saveName(name);
Call call = apiRequestData.nama_query(nama,nip);
call.enqueue(new Callback<Responses>() {
#Override
public void onResponse(Call<Responses> call, Response<Responses> response) {
if (response.code() == 200){
db.updateNamaStatus(nip, MainActivity.NAME_SYNCED_WITH_SERVER);
//sending the broadcast to refresh the list
context.sendBroadcast(new Intent(MainActivity.DATA_SAVED_BROADCAST_MAIN));
}
}
#Override
public void onFailure(Call<Responses> call, Throwable t) {
}
});
}
this is my MainActivity Class
public class MainActivity extends AppCompatActivity {
Session session;
Button buttonLogout,buttonKirim;
TextView textViewNamaMain, textViewNipMain;
EditText editTextNamaMain;
Database database;
private AdapterNama mAdapter;
private RecyclerView listviewNama;
ApiRequestData apiRequestData;
//1 means data is synced and 0 means data is not synced
public static final int NAME_SYNCED_WITH_SERVER = 1;
public static final int NAME_NOT_SYNCED_WITH_SERVER = 0;
//a broadcast to know weather the data is synced or not
public static final String DATA_SAVED_BROADCAST_MAIN = "com.example.myapplication.datasave2";
ArrayList<Nama> namaArray;
ArrayList<User> users;
BroadcastReceiver broadcastReceiver;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
session = new Session(this);
buttonLogout = findViewById(R.id.buttonLogout);
buttonKirim = findViewById(R.id.buttonKirim);
textViewNipMain = findViewById(R.id.textViewNipMain);
textViewNamaMain = findViewById(R.id.textViewNamaMain);
editTextNamaMain = findViewById(R.id.editTextTextNamaMain);
String nip = getIntent().getStringExtra("nip");
listviewNama = findViewById(R.id.lv_nama);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
listviewNama.setLayoutManager(layoutManager);
listviewNama.setItemAnimator(new DefaultItemAnimator());
database = new Database(this);
namaArray = new ArrayList<>();
users = new ArrayList<>();
apiRequestData = ServiceGenerator.createBaseService(this, ApiRequestData.class);
textViewNipMain.setText(nip);
registerReceiver(new NetworkStateCheckerNama(), new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
loadDaftarNama(nip);
broadcastReceiver = new BroadcastReceiver() {
#Override
public void onReceive(Context context, Intent intent) {
//loading the names again
loadDaftarNama(nip);
}
};
registerReceiver(broadcastReceiver, new IntentFilter(DATA_SAVED_BROADCAST_MAIN));
if(!session.isUserLogin()){
logout();
}
buttonKirim.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SimpanKeServer();
}
});
buttonLogout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
logout();
}
});
users.clear();
Cursor cursor = database.getUsersWhereNip(nip);
if (cursor.moveToFirst()) {
do {
User user = new User(
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NIP)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NAMA)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_PASSWORD)),
cursor.getInt(cursor.getColumnIndexOrThrow(Database.KOLOM_STATUS))
);
users.add(user);
textViewNamaMain.setText(user.getNama());
} while (cursor.moveToNext());
}
}
private void SimpanKeServer(){
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Saving Name...");
progressDialog.show();
String nama = editTextNamaMain.getText().toString();
String nip = textViewNipMain.getText().toString();
Call call = apiRequestData.nama_query(nama,nip);
call.enqueue(new Callback<Responses>() {
#Override
public void onResponse(Call<Responses> call, Response<Responses> response) {
progressDialog.dismiss();
if(response.code() == 200){
//if there is a success
//storing the name to sqlite with status synced
SaveNamaToLocal(nama,nip,NAME_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Berhasil", Toast.LENGTH_SHORT).show();
}else {
progressDialog.dismiss();
//if there is some error
//saving the name to sqlite with status unsynced
SaveNamaToLocal(nama,nip,NAME_NOT_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Gagal", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onFailure(Call<Responses> call, Throwable t) {
progressDialog.dismiss();
SaveNamaToLocal(nama,nip,NAME_NOT_SYNCED_WITH_SERVER);
Toast.makeText(MainActivity.this, "Gagal", Toast.LENGTH_SHORT).show();
}
});
}
private void SaveNamaToLocal(String nama, String nip, int status){
database.Nama(nama,nip,status);
Nama namas = new Nama(nama,nip,status);
namaArray.add(namas);
refreshList();
}
private void loadDaftarNama(String nip) {
namaArray.clear();
Cursor cursor = database.getNama(nip);
if (cursor.moveToFirst()) {
do {
Nama nama = new Nama(
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NAMA_COBA)),
cursor.getString(cursor.getColumnIndexOrThrow(Database.KOLOM_NIP_COBA)),
cursor.getInt(cursor.getColumnIndexOrThrow(Database.KOLOM_STATUS_NAMA_COBA))
);
namaArray.add(nama);
} while (cursor.moveToNext());
}
mAdapter = new AdapterNama(this, namaArray);
listviewNama.setAdapter(mAdapter);
}
#SuppressLint("NotifyDataSetChanged")
private void refreshList() {
mAdapter.notifyDataSetChanged();
}
private void logout(){
session.updateUserLoginStatus(false);
finish();
startActivity(new Intent(MainActivity.this,LoginActivity.class));
}
}
this when online
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this the problem when state internet switch from offline to online
enter image description here
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Even in server send 3 same values
I'm sorry for my english and my question structure im new in programmer, and thank you for the answer
This is the code am using to fetch data from my firebase realtime database.
private void fetch() {
Query query = FirebaseDatabase.getInstance()
.getReference()
.child("products");
FirebaseRecyclerOptions<Product> options =
new FirebaseRecyclerOptions.Builder<Product>()
.setQuery(query, new SnapshotParser<Product>() {
#NonNull
#Override
public Product parseSnapshot(#NonNull DataSnapshot snapshot) {
return new Product(snapshot.child("id").getValue().toString(),
snapshot.child("name").getValue().toString(),
snapshot.child("price").getValue().toString(),
snapshot.child("sku").getValue().toString(),
snapshot.child("category").getValue().toString(),
snapshot.child("subCategory").getValue().toString(),
snapshot.child("availability").getValue().toString());
}
})
.build();
adapter = new FirebaseRecyclerAdapter<Product, ProductsViewHolder>(options) {
#Override
public ProductsViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_product, parent, false);
return new ProductsViewHolder(view);
}
#Override
protected void onBindViewHolder(ProductsViewHolder holder, final int position, final Product model) {
holder.setName(model.getName());
holder.setPrice(model.getPrice());
holder.setSubCategory(model.getSubCategory());
holder.setViewAvailability(model.getAvailability());
//holder.setSku(model.getSku());
holder.root.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Toast.makeText(ProductsActivity.this, model.getId(), Toast.LENGTH_SHORT).show();
}
});
}
};
recyclerView.setAdapter(adapter);
}
This is the product viewHolder
public class ProductsViewHolder extends RecyclerView.ViewHolder{
public CardView root;
public TextView viewSubCategory;
public TextView viewName;
public TextView viewPrice;
//public TextView viewSku;
public CheckBox viewAvailability;
Context context;
public ProductsViewHolder(View itemView) {
super(itemView);
root = itemView.findViewById(R.id.list_product_root);
viewSubCategory = itemView.findViewById(R.id.viewSubCategory);
viewName = itemView.findViewById(R.id.viewName);
viewPrice = itemView.findViewById(R.id.viewPrice);
viewAvailability = itemView.findViewById(R.id.viewAvailability);
//viewAvailability.setOnCheckedChangeListener(this);
}
public void setName(String string) {
viewName.setText(string);
}
public void setViewAvailability(String string) {
if (string.equals("0")){
viewAvailability.setChecked(false);
}else {
viewAvailability.setChecked(true);
}
}
public void setPrice(String string) {
viewPrice.setText(String.format("%,d", Integer.parseInt(string)));
}
/* public void setSku(String string) {
viewSku.setText(string);
}*/
public void setSubCategory(String string) {
viewSubCategory.setText(string);
}
}
veiwAvailaibility is a checkbox, that when checked it should change the value of availability (which is a child of a product) in firebase from 0 to 1 (checked and unchecked respectively). I am failing to get the clicking checking functionality done in the ViewHolder or in my fetch class. Any assistance is appreciated.
private void fetch() {
Query query = FirebaseDatabase.getInstance()
.getReference()
.child("products");
FirebaseRecyclerOptions<Product> options =
new FirebaseRecyclerOptions.Builder<Product>()
.setQuery(query, new SnapshotParser<Product>() {
#NonNull
#Override
public Product parseSnapshot(#NonNull DataSnapshot snapshot) {
return new Product(snapshot.child("id").getValue().toString(),
snapshot.child("name").getValue().toString(),
snapshot.child("price").getValue().toString(),
snapshot.child("sku").getValue().toString(),
snapshot.child("category").getValue().toString(),
snapshot.child("subCategory").getValue().toString(),
snapshot.child("availability").getValue().toString());
}
})
.build();
adapter = new FirebaseRecyclerAdapter<Product, ProductsViewHolder>(options) {
#Override
public ProductsViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_product, parent, false);
return new ProductsViewHolder(view);
}
#Override
protected void onBindViewHolder(ProductsViewHolder holder, final int position, final Product model) {
holder.setName(model.getName());
holder.setPrice(model.getPrice());
holder.setSubCategory(model.getSubCategory());
holder.setViewAvailability(model.getAvailability());
holder.viewAvailability.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
if(isChecked){
//suggestion.setSelected(true);
DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("products").child(model.getId());
Map<String, Object> updates = new HashMap<String,Object>();
updates.put("availability", "1");
ref.updateChildren(updates);
}else {
//suggestion.setSelected(false);
DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("products").child(model.getId());
Map<String, Object> updates = new HashMap<String,Object>();
updates.put("availability", "0");
ref.updateChildren(updates);
}
}
});
//holder.setSku(model.getSku());
holder.root.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
}
});
}
};
recyclerView.setAdapter(adapter);
}
I am creating a project in which I am using navigation drawer and on navigation item click it opens a login page and after login it movies to my main activity. Now, I want to save my login details and all data in my custom shared preference from the fragment. After that it on app restarts and I go to navigation login items it should check if the user is already logged in then it should move to an activity otherwise it should run my login fragment
my login fragment
public View onCreateView(#NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
CDSMainViewModel =
ViewModelProviders.of(this).get(CDP_MainViewModel.class);
View root = inflater.inflate(R.layout.fragment_cdplogin, container, false);
context = container.getContext();
context = getActivity().getApplicationContext();
session = new Session(context);
if (session.isLoggedIn()) {
Intent itra = new Intent(getActivity().getApplicationContext(), Verification_Activity.class);
startActivity(itra);
getActivity().finish();
}
else{
login_button = root.findViewById(R.id.button_click_login);
edit1 = root.findViewById(R.id.input_username);
edit2 = root.findViewById(R.id.input_password);
layout_1 = root.findViewById(R.id.usnamelayout);
layout_2 = root.findViewById(R.id.password_layout);
login_button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
return root;
}
private void Login_data() {
String URL = "http://117.240.196.238:8080/api/cdp/getAuth";
Log.i("response", URL);
StringRequest jsonObjRequest = new StringRequest(
Request.Method.POST, URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.i("response_login", response);
parseData1(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d("volley", "Error: " + error.getMessage());
showServerConnectionError();
}
}) {
#Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded; charset=UTF-8";
}
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<String, String>();
params.put("AuthID", name);
params.put("AuthPwd", password);
return params;
}
};
RequestQueue queue = SingletonRequestQueue.getInstance(getActivity().getApplicationContext()).getRequestQueue();
queue.add(jsonObjRequest);
}
private void parseData1(String response){
try {
JSONObject json = new JSONObject(response);
int success = json.getInt("success");
String msg = json.getString("message");
if(success == 1){
Toast.makeText(getActivity(), msg, Toast.LENGTH_SHORT).show();
JSONArray recData = json.getJSONArray("data");
for (int i = 0; i < recData.length(); i++) {
JSONObject c = recData.getJSONObject(i);
String uname = name;
String upass = password;
String emp_id = c.getString("emp_id");
String empname = c.getString("EmpName");
String office = c.getString("OfficeNameFull");
String desig = c.getString("DesignationName");
String mobile = c.getString("EmpMobile");
String office_code = c.getString("OfficeCode");
String OfficeType = c.getString("OfficeType");
String district = c.getString("DistrictCode");
String DistrictName = c.getString("DistrictName");
String designationCode = c.getString("designationCode");
String DesignationName1 = c.getString("DesignationName1");
String DesigShortName = c.getString("DesigShortName");
Log.i("session",district);
//Here my loginsession is not working its not saving my data in my session..
Session.getInstance(getContext()).loginsession(emp_id,uname,upass,empname,office,desig,mobile,office_code,OfficeType,district,DistrictName,designationCode,DesignationName1,DesigShortName);
// String email = SessionManager.getInstance(context).getUserEmail();
// session.loginsession(emp_id,uname,upass,empname,office,desig,mobile,office_code,OfficeType,district,DistrictName,designationCode,DesignationName1,DesigShortName);
Intent its12 = new Intent(getActivity().getApplicationContext(), Verification_Activity.class);
startActivity(its12);
getActivity().overridePendingTransition(R.anim.from_right, R.anim.slide_to_left);
getActivity().finish();
}
} else {
Toast.makeText(context,msg, Toast.LENGTH_LONG).show();
}
}catch(Exception ex){
}
}
}
//Session manager class
package com.example.agridept.domain;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import com.example.agridept.ui.CDP_login.CDP_MainFragment;
public class Session {
private static Session jInstance;
SharedPreferences preferences;
SharedPreferences.Editor editor;
Context context;
int PRIVATE_MODE = 0;
private static final String IS_LOGIN = "IsLoggedIn";
private static final String PREF_NAME = "AndroidHivePref";
String emp_id1,username1,password1 ,empname1 , office1 , desig1, mobile1, office_code1, OfficeType1 , district1 ,DistrictName1 , designationCode1, DesignationName11 , DesigShortName1;
public Session(Context context){
this.context = context;
preferences = context.getSharedPreferences(PREF_NAME, PRIVATE_MODE);
editor = preferences.edit();
}
public void loginsession(String emp_id,String username,String password11 ,String empname ,String office ,String desig,String mobile,String office_code,String OfficeType ,String district ,String DistrictName ,String designationCode,String DesignationName1 ,String DesigShortName){
editor.putBoolean(IS_LOGIN, true);
editor.putString(emp_id1,emp_id);
editor.putString(username1,username);
editor.putString(password1,password11);
editor.putString(empname1,empname);
editor.putString(office1,office);
editor.putString(desig1,desig);
editor.putString(mobile1,mobile);
editor.putString(office_code1,office_code);
editor.putString(OfficeType1,OfficeType);
editor.putString(district1,district);
editor.putString(DistrictName1,DistrictName);
editor.putString(designationCode1,designationCode);
editor.putString(DesignationName11,DesignationName1);
editor.putString(DesigShortName1,DesigShortName);
}
public boolean isLoggedIn() {
return preferences.getBoolean(IS_LOGIN, false);
}
public void logoutUser() {
// Clearing all data from Shared Preferences
editor.clear();
editor.commit();
// After logout redirect user to Loing Activity
Intent i = new Intent(context, CDP_MainFragment.class);
// Closing all the Activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// Add new Flag to start new Activity
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Staring Login Activity
context.startActivity(i);
}
public void clearinfo() {
// Clearing all data from Shared Preferences
editor.clear();
editor.commit();
}
public SharedPreferences getPreferences() {
return preferences;
}
public void setPreferences(SharedPreferences preferences) {
this.preferences = preferences;
}
public SharedPreferences.Editor getEditor() {
return editor;
}
public void setEditor(SharedPreferences.Editor editor) {
this.editor = editor;
}
public Context getContext() {
return context;
}
public void setContext(Context context) {
this.context = context;
}
public int getPRIVATE_MODE() {
return PRIVATE_MODE;
}
public void setPRIVATE_MODE(int PRIVATE_MODE) {
this.PRIVATE_MODE = PRIVATE_MODE;
}
public static String getIsLogin() {
return IS_LOGIN;
}
public static String getPrefName() {
return PREF_NAME;
}
public String getEmp_id1() {
return emp_id1;
}
public void setEmp_id1(String emp_id1) {
this.emp_id1 = emp_id1;
}
public String getPassword1() {
return password1;
}
public void setPassword1(String password1) {
this.password1 = password1;
}
public String getEmpname1() {
return empname1;
}
public void setEmpname1(String empname1) {
this.empname1 = empname1;
}
public String getOffice1() {
return office1;
}
public void setOffice1(String office1) {
this.office1 = office1;
}
public String getDesig1() {
return desig1;
}
public void setDesig1(String desig1) {
this.desig1 = desig1;
}
public String getMobile1() {
return mobile1;
}
public void setMobile1(String mobile1) {
this.mobile1 = mobile1;
}
public String getOffice_code1() {
return office_code1;
}
public void setOffice_code1(String office_code1) {
this.office_code1 = office_code1;
}
public String getOfficeType1() {
return OfficeType1;
}
public void setOfficeType1(String officeType1) {
OfficeType1 = officeType1;
}
public String getDistrict1() {
return district1;
}
public void setDistrict1(String district1) {
this.district1 = district1;
}
public String getDistrictName1() {
return DistrictName1;
}
public void setDistrictName1(String districtName1) {
DistrictName1 = districtName1;
}
public String getDesignationCode1() {
return designationCode1;
}
public void setDesignationCode1(String designationCode1) {
this.designationCode1 = designationCode1;
}
public String getDesignationName11() {
return DesignationName11;
}
public void setDesignationName11(String designationName11) {
DesignationName11 = designationName11;
}
public String getDesigShortName1() {
return DesigShortName1;
}
public void setDesigShortName1(String desigShortName1) {
DesigShortName1 = desigShortName1;
}
public static synchronized Session getInstance(Context context) {
if (jInstance != null) {
return jInstance;
} else {
jInstance = new Session(context);
return jInstance;
}
}
}
I am new in android using fragments in my Project. first time my fragment is creating then api called and get data load in fragment. here when i clicked at any item i replaced fragment by another fragment there also another api called and load data to fragment.
now here problem situation generated for me.
from here i back Button pressed.
fragment reloading same as first time creating but it should be show data as i left before going to next fragment.
so please provide me solution how i can get same data as i left means savedInstanceState data.
im my first fragment getCategory method call Api and get Data first time when i choose any category i replace fragment with another fragment but when i m returning same getCategory method recall perform same process as it first time.
fragment should not call api method again on backpressed it should show same category on this i clicked before.
my first fragment where calling api......
public class LandingFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private GridLayoutManager gridLayoutManager;
private static RecyclerView category_Grid;
private Fragment myFragment = null;
ProgressBar mProgressView;
View mLoginFormView;
private Category category;
private CategoryAdapter categoryAdapter;
private List<CategoryObject> rowListItem;
private String productId;
private OnFragmentInteractionListener mListener;
public LandingFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* #param param1 Parameter 1.
* #param param2 Parameter 2.
* #return A new instance of fragment LandingFragment.
*/
// TODO: Rename and change types and number of parameters
public static LandingFragment newInstance(String param1, String param2) {
LandingFragment fragment = new LandingFragment();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v= inflater.inflate(R.layout.fragment_landing, container, false);
return v;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
initViews(view);
RecyclerViewListeners();
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
#Override
public void onAttach(Activity context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
#Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
private void initViews(final View v) {
mLoginFormView = (View)v.findViewById(R.id.mainView);
mProgressView = (ProgressBar)v.findViewById(R.id.login_progress);
category_Grid = (RecyclerView)v.findViewById(R.id.cat_grid);
category_Grid.setHasFixedSize(true);
gridLayoutManager = new GridLayoutManager(getActivity(), 3);
category_Grid.setLayoutManager(gridLayoutManager);
}
private void RecyclerViewListeners(){
category_Grid.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), category_Grid, new ItemClickListener(){
#Override
public void onClick(View view, int position) {
String entityId = rowListItem.get(position).getCategoryId();
String catName = rowListItem.get(position).getName();
Integer ishave = rowListItem.get(position).getIshaveSubcategories();
if(ishave==1) {
myFragment = SubcategoryFragment.newInstance(""+catName, "" + entityId);
ActivityUtils.launchFragementWithAnimation(myFragment, getActivity());
}else{
myFragment = ProductListFragment.newInstance("", "" + entityId);
ActivityUtils.launchFragementWithAnimation(myFragment, getActivity());
}
}
#Override
public void onLongClick(View view, int position) {
}
}));
}
public void getCategory() {
showProgress(true);
String URL = getResources().getString(R.string.category_api);
StringRequest req = new StringRequest(Request.Method.POST,URL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
VolleyLog.v("Response:%n %s", response);
Gson gson = new GsonBuilder().serializeNulls().create();
try {
JSONObject jsonObject = new JSONObject(response);
if (jsonObject.getString("status").equals(getResources().getString(R.string.response_success))){
category = gson.fromJson(response, Category.class);
rowListItem = category.getCategory();
if(navigationUpdated){
someEventListener.someEvent(rowListItem);
navigationUpdated = false;
}
Log.d("CATEGORYID::::::::",""+rowListItem.get(1).getCategoryId());
categoryAdapter = new CategoryAdapter(getActivity(),rowListItem);
category_Grid.setAdapter(categoryAdapter);
categoryAdapter.notifyDataSetChanged();
return;
}
else if (jsonObject.getString("status").equals(getResources().getString(R.string.login_Er_respose))){
Log.e("","ERRORRRRRR");
return;
}
} catch (JSONException e) {
showProgress(false);
Log.e("My App", "Could not parse malformed JSON: \"" + response + "\"");
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
showProgress(false);
VolleyLog.e("Error: ", error.getMessage());
}
}){
#Override
protected Map<String,String> getParams(){
Map<String,String> params = new HashMap<String, String>();
return params;
}
#Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String,String> params = new HashMap<String, String>();
params.put("Content-Type","application/x-www-form-urlencoded");
return params;
}
};
AppController.getInstance().addToRequestQueue(req);
}
#TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
#Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
You can check your rowListItem.size(), if it's size is 0 then call getCategory() service, otherwise load your data from your rowListItem. Here is sample code which I am using to load data from arraylist if it is not empty:
if (mArrayArticle.size() == 0) {
isDataLoading = true;
mRecyclerList.setVisibility(View.INVISIBLE);
getCategory();
} else {
mHomeItemAdapter = new HomeItemAdapter(getActivity(), mArrayArticle, this);
mRecyclerList.setAdapter(mHomeItemAdapter);
}
Here mArrayArticle is my ArrayList, Hope it will help you.
for more clarification i want to tell..
how i implement the #Bhvk_AndroidBee solution
fragment backpressed call onActivityCreated Method so first overridethis method in fragment
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
//here you can check null condition for rowListItem
}
}
inside onActivityCreated method I checked the condition like that
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
if(rowListItem!=null){
categoryAdapter = new CategoryAdapter(getActivity(),rowListItem);
category_Grid.setAdapter(categoryAdapter);
categoryAdapter.notifyDataSetChanged();
}else {
//call the method for first time creating your view
getCategory();
}
}
hope this would be helpfull for more strugglers like me...
UPDATE:
I have learned what I am looking to do is to use the Async within Retrofit with multiple queries too. I have updated my code, but I cannot get the async with the queries.
I am using Retrofit to make my data calls to a movie database and need to change the sort order depending on user settings. I am not clear how I could add this functionality to my interface.
sort_by=highest_rating.desc
or
sort_by=popularity.desc
Interface:
public interface MovieDatabaseApiCient {
#GET("/3/discover/movie")
void getData(#Query("api_key") String apiKey, #Query("sort_by") String sortByValue, Callback<MovieDbModel> response);
}
UPDATED API INTERFACE:
public interface MovieDatabaseApiCient {
#GET("/3/discover/movie?sort_by=popularity.desc&api_key=xxxxxxx")
void getMoviesByPopularityDesc(Callback<MovieDbModel> response);
#GET("/3/discover/movie?sort_by=vote_average_desc&api_key=xxxxxxxx")
void getMoviesByVotingDesc(Callback<MovieDbModel> response);
}
UPDATED DATA CALL THAT WORKS:
private void makeDataCall(String sortPreference) {
final RestAdapter restadapter = new RestAdapter.Builder().setEndpoint(ENDPOINT_URL).build();
MovieDatabaseApiCient apiLocation = restadapter.create(MovieDatabaseApiCient.class);
if (sortPreference.equals(this.getString(R.string.sort_order_popularity)) ){
apiLocation.getMoviesByPopularityDesc (new Callback<MovieDbModel>() {
#Override
public void success(MovieDbModel movieModels, Response response) {
movieDbResultsList = movieModels.getResults();
MoviesGridViewAdapter adapter = new MoviesGridViewAdapter(getApplicationContext(), R.layout.movie_gridview_item, movieDbResultsList);
gridView.setAdapter(adapter);
}
#Override
public void failure(RetrofitError error) {
Log.d("ERROR", error.toString());
Toast.makeText(getApplicationContext(), "Error: " + error.toString(), Toast.LENGTH_SHORT).show();
}
});
} else {
apiLocation.getMoviesByVotingDesc( new Callback<MovieDbModel>() {
#Override
public void success(MovieDbModel movieModels, Response response) {
movieDbResultsList = movieModels.getResults();
MoviesGridViewAdapter adapter = new MoviesGridViewAdapter(getApplicationContext(), R.layout.movie_gridview_item, movieDbResultsList);
gridView.setAdapter(adapter);
}
#Override
public void failure(RetrofitError error) {
Log.d("ERROR", error.toString());
Toast.makeText(getApplicationContext(), "Error: " + error.toString(), Toast.LENGTH_SHORT).show();
}
});
}
}
My call for the data:
private void makeDataCall (String apiKey, String sortPreference) {
final RestAdapter restadapter = new RestAdapter.Builder().setEndpoint(ENDPOINT_URL).build();
MovieDatabaseApiCient apiLocation = restadapter.create(MovieDatabaseApiCient.class);
apiLocation.getData(apiKey, sortPreference, new Callback<MovieDbModel>){
#Override
public void success(MovieDbModel movieModels, Response response) {
movieDbResultsList = movieModels.getResults();
MoviesGridViewAdapter adapter = new MoviesGridViewAdapter(getApplicationContext(), R.layout.movie_gridview_item, movieDbResultsList);
gridView.setAdapter(adapter);
}
#Override
public void failure(RetrofitError error) {
Log.d("ERROR", error.toString());
Toast.makeText(getApplicationContext(), "Error: " + error.toString(), Toast.LENGTH_SHORT).show();
}
});
}
I found a way to do Synchronously, but not asynchronously.
From your question and comment, IHMO, you should import retrofit.Callback; instead of import com.squareup.okhttp.Callback;
My code as the following has no compile error:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// creating a RestAdapter using the custom client
RestAdapter restAdapter = new RestAdapter.Builder()
.setEndpoint(API_URL_BASE)
.setLogLevel(RestAdapter.LogLevel.FULL)
.setClient(new OkClient(mOkHttpClient))
.build();
WebService webService = restAdapter.create(WebService.class);
retrofit.Callback<GetRoleData> callback = new Callback<GetRoleData>() {
#Override
public void success(GetRoleData getRoleData, retrofit.client.Response response) {
}
#Override
public void failure(RetrofitError error) {
}
};
webService.getData("api_key", "sort_by", callback);
}
Interface:
public interface WebService {
#GET("/3/discover/movie")
void getData(#Query("api_key") String apiKey, #Query("sort_by") String sortByValue, Callback<GetRoleData> response);
}
So, please check your code again