//MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final String JSON_URL = "http://kedaiagan.000webhostapp.com/kedaiagan/kedaiagan/menus.php";
List menusList;
ListView listView;
private Button btnKirimPesan;
EditText nomeja;
AlertDialog.Builder builder;
JSONArray jsonArray = new JSONArray();
//initializing objects
private void inisialisasi(){
listView = (ListView) findViewById(R.id.listview);
menusList = new ArrayList<>();
btnKirimPesan= (Button) findViewById(R.id.btnKirimPesan);
nomeja = (EditText) findViewById(R.id.input_meja);
builder = new AlertDialog.Builder(MainActivity.this);
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inisialisasi();
//this method will fetch and parse the data
loadMenuList();
btnKirimPesan.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
for (int i = 0; i < listView.getCount(); i++) {
View v = getViewByPosition(i, listView);
String id_menu = ((TextView) v.findViewById(R.id.textViewIdMenu)).getText().toString();
String ket_menu = ((EditText) v.findViewById(R.id.textKeterangan)).getText().toString();
String qty_menu = ((EditText) v.findViewById(R.id.textQuantity)).getText().toString();
JSONObject pesanan = new JSONObject();
try {
if(!qty_menu.equals("")) {
if (Integer.valueOf(qty_menu) >= 1) {
pesanan.put("id_menu", id_menu);
pesanan.put("keterangan", ket_menu);
pesanan.put("jumlah_porsi", qty_menu);
jsonArray.put(pesanan);
}
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
String url = "http://kedaiagan.000webhostapp.com/kedaiagan/kedaiagan/insertpesanan.php";
StringRequest stringRequest = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
builder.setTitle("Pesanan Terkirim");
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
nomeja.setText("");
Intent intent = new Intent(MainActivity.this, HalUtama.class);
startActivity(intent);
}
});
AlertDialog alertDialog = builder.create();
alertDialog.show();
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError volleyError) {
Toast.makeText(MainActivity.this, volleyError.toString(), Toast.LENGTH_LONG).show();
volleyError.printStackTrace();
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new HashMap<String, String>();
params.put("nomeja", nomeja.getText().toString());
params.put("pesanan", jsonArray.toString());
return params;
}
};
Process.getInstance(MainActivity.this).addTorequestque(stringRequest);
}
public View getViewByPosition(int position, ListView listView) {
final int firstListItemPosition = listView.getFirstVisiblePosition();
final int lastListItemPosition = firstListItemPosition + listView.getChildCount() - 1;
if (position < firstListItemPosition || position > lastListItemPosition ) {
return listView.getAdapter().getView(position, listView.getChildAt(position), listView);
} else {
final int childIndex = position - firstListItemPosition;
return listView.getChildAt(childIndex);
}
}
});
}
public void getTotalHeightofListView() {
ListAdapter mAdapter = listView.getAdapter();
int totalHeight = 0;
int height = 0;
for (int i = 0; i < mAdapter.getCount(); i++) {
View mView = mAdapter.getView(i, null, listView);
mView.measure(
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
height = mView.getMeasuredHeight();
totalHeight += mView.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight
+ (listView.getDividerHeight() * (mAdapter.getCount() - 1))
+ height;
Log.i("Height", "" + totalHeight);
listView.setLayoutParams(params);
listView.requestLayout();
}
private void loadMenuList() {
//getting the progressbar
final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);
//making the progressbar visible
progressBar.setVisibility(View.VISIBLE);
//creating a string request to send request to the url
StringRequest stringRequest = new StringRequest(Request.Method.GET, JSON_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
//hiding the progressbar after completion
progressBar.setVisibility(View.INVISIBLE);
try {
//getting the whole json object from the response
JSONObject obj = new JSONObject(response);
//we have the array named hero inside the object
//so here we are getting that json array
JSONArray menuArray = obj.getJSONArray("menus");
//now looping through all the elements of the json array
for (int i = 0; i < menuArray.length(); i++) {
//getting the json object of the particular index inside the array
JSONObject menuObject = menuArray.getJSONObject(i);
//creating a hero object and giving them the values from json object
Menus menu = new Menus(menuObject.getString("nama_menu"), menuObject.getString("id_menu"));
//adding the hero to herolist
menusList.add(menu);
}
//creating custom adapter object
final MyListAdapter adapter = new MyListAdapter(menusList, getApplicationContext());
//adding the adapter to listview
listView.setAdapter(adapter);
getTotalHeightofListView();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//displaying the error in toast if occurrs
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();
Log.e("error", error.getMessage());
}
});
//creating a request queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
//adding the string request to request queue
requestQueue.add(stringRequest);
}
}
//MyListAdapter.java
public class MyListAdapter extends ArrayAdapter<Menus> {
//the hero list that will be displayed
List<Menus> menusList;
//the context object
Context mCtx;
//here we are getting the herolist and context
//so while creating the object of this adapter class we need to give herolist and context
public MyListAdapter(List<Menus> menusList, Context mCtx) {
super(mCtx, R.layout.my_custom_list, menusList);
this.mCtx = mCtx;
this.menusList = menusList;
}
//this method will return the list item
#Override
public View getView(int position, View convertView, ViewGroup parent) {
//getting the layoutinflater
LayoutInflater inflater = LayoutInflater.from(mCtx);
//creating a view with our xml layout
View listViewItem = inflater.inflate(R.layout.my_custom_list, null, true);
//getting text views
TextView textViewName = listViewItem.findViewById(R.id.textViewName);
TextView textViewIdMenu = listViewItem.findViewById(R.id.textViewIdMenu);
//Getting the hero for the specified position
Menus hero = menusList.get(position);
//setting hero values to textviews
textViewName.setText(hero.getNama_menu());
textViewIdMenu.setText(hero.getId_menu());
//returning the listitem
return listViewItem;
}
}
//Menus.java
public class Menus {
String nama_menu;
String id_menu;
public Menus(String nama_menu, String id_menu) {
this.nama_menu = nama_menu;
this.id_menu = id_menu;
}
public String getNama_menu() {
return nama_menu;
}
public String getId_menu() {
return id_menu;
}
}
1. List item
Easy way is that you use GSON to parse JSON string to POJOs and from there you'll get the list of type POJO and from there you can apply required filters on the list to generate a required list.
import java.util.ArrayList;
public class ListHandler{
private ArrayList<POJO_Name> metrics;
public ArrayList<POJO_Name> getMetrics() {
return metrics;
}
public void setMetrics(ArrayList<POJO_Name> metrics) {
this.metrics = metrics;
}
}
This will generate an instance of list that you'll get from parsing the JSON using GSON. And for the parsing process
GsonBuilder gsonBuilder = new GsonBuilder();
Gson gson = gsonBuilder.create();
ListHandler handler= gson.fromJson(json_string, POJOName.class);
Just make sure you POJO must be serialized. If you like to create POJO without pain I suggest you to use JSON to POJO.
Now all is done just create a method that will return you a new list after applying conditions over the base list so that you don't mess the base list.
Related
getting response from server id and name,
public class UpcomingRaces extends Fragment {
private static final String TAG = "UpcomingRaces";
UserSessionManager session;
Button btn_selectloc;
TextView mItemSelected;
String[] listItems = {};
boolean[] checkedItems;
ArrayList<Integer> mUserItems = new ArrayList<>();
ArrayList<String> arrayList = new ArrayList<String>();
String[] listItems1 = {};
ArrayList<String> arrayList1 = new ArrayList<String>();
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_upcoming_races, container, false);
session = new UserSessionManager(getActivity());
btn_selectloc = (Button) rootView.findViewById(R.id.btn_selectloc);
mItemSelected = (TextView) rootView.findViewById(R.id.tvItemSelected);
getLocations();
listItems = arrayList.toArray(new String[Arrays.asList(listItems).size()]);
checkedItems = new boolean[listItems.length];
listItems1 = arrayList1.toArray(new String[Arrays.asList(listItems).size()]);
btn_selectloc.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AlertDialog.Builder mBuilder = new AlertDialog.Builder(getActivity());
mBuilder.setTitle(R.string.dialog_title);
mBuilder.setMultiChoiceItems(listItems, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int position, boolean isChecked) {
if(isChecked){
mUserItems.add(position);
}else{
mUserItems.remove((Integer.valueOf(position)));
}
}
});
mBuilder.setCancelable(false);
mBuilder.setPositiveButton(R.string.ok_label, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
String item = "";
String item1 = "";
for (int i = 0; i < mUserItems.size(); i++) {
item = item + listItems[mUserItems.get(i)];
if (i != mUserItems.size() - 1) {
item = item + ", ";
}
item1 = item1 + listItems1[mUserItems.get(i)];
if (i != mUserItems.size() - 1) {
item1 = item1 + ", ";
}
}
mItemSelected.setText(item1);
}
});
AlertDialog mDialog = mBuilder.create();
mDialog.show();
}
});
return rootView;
}
private void getLocations() {
StringRequest stringRequest = new StringRequest("https://jsonplaceholder.typicode.com/posts",
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONObject obj = new JSONObject("{"response":1,"message":"locations success","data":[{"id":7,"name":"123 Middle School"},{"id":8,"name":"ABC Jr High"},{"id":3,"name":"Brentwood High school"},{"id":2,"name":"Clinton Elementary"},{"id":5,"name":"Iowa High School"},{"id":1,"name":"Jfk middle school"},{"id":6,"name":"Terryville Elementary "},{"id":4,"name":"West Jr high"}]}");
if (obj.getString("response").equals("1")) {
//mProgress.dismiss();
JSONArray res = new JSONArray(obj.getString("data"));
for (int i=0; i<res.length(); i++) {
JSONObject result = null;
result = res.getJSONObject(i);
arrayList.add(result.getString("name"));
arrayList1.add(result.getString("id"));
}
} else {
Toast.makeText(getActivity(), obj.getString("message"), Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(stringRequest);
}
}
I want to show the name in setMultiChoiceItems with boolean checkedItems and I want to append checked "id" to TextView mItemSelected.
Also I want to store that checked id in the session.
I have tried in a many ways and couldn't able to solve this issue..please help me to achieve this.
EDITED
public class MainActivity extends AppCompatActivity {
LinearLayout notification_bar_linearlayout;
TextView txtOutput;
private String DEBUG_TAG = "MOVEMENT";
ArrayList<String> arrayList;
ArrayList<Integer> mUserItems;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtOutput = (TextView) findViewById(R.id.output);
mUserItems = new ArrayList<>();
StringRequest stringRequest = new StringRequest("your_url_here",
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
arrayList = new ArrayList<>();
response = " {\"response\":1,\"message\":\"locations success\",\"data\":[{\"id\":7,\"name\":\"123 Middle School\"},{\"id\":8,\"name\":\"ABC Jr High\"},{\"id\":3,\"name\":\"Brentwood High school\"}]}";
JSONObject obj = new JSONObject(response);
if (obj.getString("response").equals("1")) {
JSONArray res = obj.getJSONArray("data");
for (int i=0; i< res.length(); i++) {
JSONObject val = res.getJSONObject(i);
arrayList.add(val.getString("name"));
}
LoadAlert();
} else {
Toast.makeText(getApplicationContext(), obj.getString("message"), Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
public void LoadAlert()
{
String[] listItems = arrayList.toArray(new String[arrayList.size()]);
boolean[] checkedItems = new boolean[listItems.length];
AlertDialog.Builder mBuilder = new AlertDialog.Builder(this);
mBuilder.setTitle("SELECT ITEMS");
mBuilder.setMultiChoiceItems(listItems, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int position, boolean isChecked) {
if(isChecked){
mUserItems.add(position);
}else{
mUserItems.remove((Integer.valueOf(position)));
}
}
});
mBuilder.setCancelable(false);
mBuilder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
String items = "";
for (int i = 0;i < mUserItems.size();i++)
{
items += "" + mUserItems.get(i) + ", ";
}
txtOutput.setText(items);
}
});
mBuilder.show();
}
Hope it will works.!
Please help me out to load more data from the server upon scrolling my RecyclerView . Here I have successfully created RecyclerView by loading data from my Mysql server by using volley string request.
Here is my code.
private void populateRecycleView() {
if (Utility.checkNetworkConnection(this)) {
final ProgressDialog progressDialog = new ProgressDialog(this);
progressDialog.setTitle("Searching...");
progressDialog.setMessage("Searching for the blood donor. Please wait a moment.");
progressDialog.setCancelable(false);
progressDialog.show();
StringRequest stringRequest = new StringRequest(Request.Method.POST, Constants.GET_DONORS_URL,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
progressDialog.dismiss();
try {
JSONArray jsonArray = new JSONArray(response);
int count = 0;
while (count < jsonArray.length()) {
JSONObject jsonObject = jsonArray.getJSONObject(count);
String firstName = jsonObject.getString("fName");
String secondName = jsonObject.getString("sName");
String email = jsonObject.getString("emailid");
String password = jsonObject.getString("pass");
String mobile = jsonObject.getString("mobile");
String bloodRt = jsonObject.getString("blood");
String age = jsonObject.getString("age");
String gender = jsonObject.getString("gender");
String country = jsonObject.getString("country");
String location = jsonObject.getString("location");
String latitude = jsonObject.getString("latitude");
String longitude = jsonObject.getString("longitude");
String profilePicFIleName = jsonObject.getString("picname");
String profilePicURL = jsonObject.getString("pic");
Donor donor = new Donor(firstName, secondName, email, password, mobile, bloodRt, age, gender,
country, location, latitude, longitude, profilePicFIleName, profilePicURL);
donorsList.add(donor);
count++;
}
donorsAdapter = new DonorsAdapter(FindDonorResult.this, donorsList);
recyclerView = (RecyclerView) findViewById(R.id.rv_search_result_donor);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(FindDonorResult.this));
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(donorsAdapter);
donorsAdapter.notifyDataSetChanged();
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
Toast.makeText(FindDonorResult.this, "Active data network is not available.", Toast.LENGTH_LONG).show();
}
}
) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("bloodGroup", bloodGroup);
return params;
}
};
NetworkRequestSingleTon.getOurInstance(this).addToRequestQue(stringRequest);
} else {
Utility.checkNetworkConnectionFound(this);
}
}
And this is my RecyclerView adapter...
public class DonorsAdapter extends RecyclerView.Adapter<DonorsAdapter.CustomViewHolder> {
private Context context;
private ArrayList<Donor> donorList;
private String bloodGroup;
public DonorsAdapter(Context context, ArrayList<Donor> donorList) {
this.context = context;
this.donorList = donorList;
}
#Override
public CustomViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.rv_blood_donors_result,
parent, false);
return new CustomViewHolder(view);
}
#Override
public void onBindViewHolder(CustomViewHolder holder, int position) {
final Donor donor = donorList.get(position);
String displayName = donor.getFirstName() + " " + donor.getSecondName();
holder.tvDisplayName.setText(displayName);
holder.tvEmailID.setText(donor.getEmail());
String userProfileURL = donor.getProfilePicURL();
if (!userProfileURL.equals("")) {
Picasso.with(context).load(userProfileURL).resize(80, 80).centerCrop().
into(holder.ivProfilePic);
} else {
holder.ivProfilePic.setImageResource(R.drawable.ic_person_white_24dp);
}
bloodGroup = donor.getBloodGroup();
if (bloodGroup.equals("A+"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.a_);
else if (bloodGroup.equals("A-"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.a_negative);
else if (bloodGroup.equals("B+"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.b_positive);
else if (bloodGroup.equals("B-"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.b_negative);
else if (bloodGroup.equals("O+"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.o_positive);
else if (bloodGroup.equals("O-"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.o_negative);
else if (bloodGroup.equals("AB+"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.ab_positive);
else if (bloodGroup.equals("AB-"))
holder.ivBloodTypeDisplay.setImageResource(R.drawable.ab_negative);
if(Utility.isNetworkEnabled){
holder.constraintLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(context, DisplayDonorDetails.class);
intent.putExtra("donor", donor);
context.startActivity(intent);
}
});
}else {
Toast.makeText(context, "Network not available.", Toast.LENGTH_SHORT).show();
}
}
#Override
public int getItemCount() {
if(donorList != null){
return donorList.size();
}else {
return 0;
}
}
public class CustomViewHolder extends RecyclerView.ViewHolder {
ImageView ivProfilePic, ivBloodTypeDisplay, ivArrow;
TextView tvDisplayName;
TextView tvEmailID;
ConstraintLayout constraintLayout;
public CustomViewHolder(View itemView) {
super(itemView);
ivProfilePic = (ImageView) itemView.findViewById(R.id.civ_user_profile_picture);
ivBloodTypeDisplay = (ImageView) itemView.findViewById(R.id.civ_user_blood_type_display);
ivArrow = (ImageView) itemView.findViewById(R.id.civ_arrow);
tvDisplayName = (TextView) itemView.findViewById(R.id.tvUserNameOnRV);
tvEmailID = (TextView) itemView.findViewById(R.id.tvEmailDisplayOnRV);
constraintLayout = (ConstraintLayout) itemView.findViewById(R.id.recycle_view_item_container);
}
}
}
Populate your donorsAdapter only with the 50 first elements of your donorsList, create a function that save the position of the latest element displayed and add other 50 donors to your adapter starting from the latest position saved when you need it.
Hope it helps.
EDIT
First create an emptyList:
List<Donor> subElements = new ArrayList<>();
and pass it to your adapter:
donorsAdapter = new DonorsAdapter(FindDonorResult.this, subElements);
Now you can create a method like this (you can call in onClick event for example):
private int LAST_POSITION = 0;
private int DONORS_NUM_TOSHOW = 50;
public void showMoreDonors(){
if(donarsList.size() > Last_postion+50){
List<Donor> tempList = new ArrayList<Donor>(donorsList.subList(Last_postion,Last_postion+DONORS_NUM_TOSHOW));
for(Donor a : tempList){
subElements.add(a);
}
Last_postion += DONORS_NUM_TOSHOW;
donorsAdapter.notifyDataSetChanged();
}else{
List<Donor> tempList = new ArrayList<Donor>(donorsList.subList(Last_postion,donorsList.size()));
for(Donor a : tempList){
subElements.add(a);
}
donorsAdapter.notifyDataSetChanged();
}
}
Remember to check when donorsList is over.
I didn't test it, but i hope it is usefull to understand the idea.
Finally, I sort this out. I have got an awesome tutorial from this blog.
http://android-pratap.blogspot.in/2015/06/endless-recyclerview-with-progress-bar.html.
I made some changes to populate the list because my data is on a remote server and by using volley library I fetched the data into the list. Remaining things are same.
I am using OnScrolListener to add items to a ListView in my app .Scrolling is working fine, but i am facing an error . when I scroll to bottom,data add to list ,but position start from top .Please help me
public class Hotel_list_activity extends AppCompatActivity implements View.OnClickListener {
Global global;
ListView hotel_list;
SharedPreferences mpref;
SharedPreferences.Editor ed;
ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
TextView checkIn, checkout, number_of_persons_text, number_of_room_text;
LinearLayout hotel_list_back_image;
boolean isLoading = false;
Bundle translateBundle;
int count, Page_inc = 1;
int next;
#TargetApi(Build.VERSION_CODES.M)
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_hotel_list_activity);
global = (Global) getApplicationContext();
mpref = getSharedPreferences("com.example.brightroots.flight_app", Context.MODE_PRIVATE);
init();
startAnim();
GetHotel();
//initList();
hotel_list.setOnScrollListener(new AbsListView.OnScrollListener() {
#Override
public void onScrollStateChanged(AbsListView arg0, int scrollState) {
// If scroll state is touch scroll then set userScrolled
// true
if (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_TOUCH_SCROLL) {
isLoading = true;
}
}
#Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// Now check if userScrolled is true and also check if
// the item is end then update list view and set
// userScrolled to false
if (isLoading
&& firstVisibleItem + visibleItemCount == totalItemCount) {
isLoading = false;
loadMore();
}
}
});
}
private void loadMore() {
Log.e("count_value", count + "");
Log.e("count_Page", Page_inc + "");
Page_inc = 2;
if (Page_inc <= count) {
GetHotel();
Log.e("countttttttt_gg", Page_inc + "");
Page_inc = Page_inc + 1;
Log.e("Page_iceeee", Page_inc + "");
isLoading = false;
} else {
/* Page_inc=1;
GetHotel();*/
}
}
//================================================================================= findviewbyid
private void init() {
hotel_list = (ListView) findViewById(R.id.hotel_list_list_view);
checkIn = (TextView) findViewById(R.id.Enter_date1);
checkout = (TextView) findViewById(R.id.Enter_date2);
number_of_persons_text = (TextView) findViewById(R.id.number_of_persons_text);
number_of_room_text = (TextView) findViewById(R.id.number_of_room_text);
hotel_list_back_image = (LinearLayout) findViewById(R.id.hotel_list_back_image);
number_of_persons_text.setText(mpref.getString("adult", ""));
number_of_room_text.setText(mpref.getString("room", ""));
hotel_list_back_image.setOnClickListener(this);
String date = mpref.getString("checkin", "");
String date_out = mpref.getString("checkout", "");
DateFormat targetFormat = new SimpleDateFormat("MMM dd,yyyy");
DateFormat originalFormat = new SimpleDateFormat("yyyy-MM-dd");
Date d = null;
Date dd = null;
try {
d = originalFormat.parse(date);
dd = originalFormat.parse(date_out);
} catch (ParseException e) {
e.printStackTrace();
}
String formattedDate = targetFormat.format(d); // 201208
String formattedDate1 = targetFormat.format(dd); // 201208
Log.e("Change format", formattedDate);
Log.e("Change format", formattedDate1);
checkIn.setText(formattedDate);
checkout.setText(formattedDate1);
}
//========================================================================================hotel name
private void GetHotel() {
String url = "http://api.wego.com/hotels/api/search/show/" + global.getSearch() + "?currency_code=" + mpref.getString("currency_code", "") + "&page=" + Page_inc + "&refresh=true&key=12345&ts_code=123";
Log.e("show", url);
StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
// Log.e("Response_____>>", response);
stopAnim();
JSONObject job = null;
try {
job = new JSONObject(response);
String totalcount = job.getString("total_count");
count = Integer.parseInt(job.getString("count"));
String current_page = job.getString("current_page");
JSONArray jo = job.getJSONArray("hotels");
// Log.e("hhhh", "hhhh");
;
for (int i = 0; i < jo.length(); i++) {
JSONObject obj = jo.getJSONObject(i);
HashMap<String, String> hmap = new HashMap<String, String>();
hmap.put("id", obj.getString("id"));
hmap.put("name", obj.getString("name"));
hmap.put("address", obj.getString("address"));
hmap.put("image", obj.getString("image"));
hmap.put("stars", obj.getString("stars"));
//dataItems.add(String.valueOf(hmap));
list.add(hmap);
}
Log.e("dataItemmmmm", list + "");
global.sethoteldetail(list);
// adapter = new Hotel_List_adapter(Hotel_list_activity.this, list);
hotel_list.setAdapter(new Hotel_List_adapter(Hotel_list_activity.this, list));
} catch (JSONException e1) {
e1.printStackTrace();
stopAnim();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// Log.e("Response ERROR_____>>", error.toString());
stopAnim();
//pdia.dismiss();
Toast.makeText(Hotel_list_activity.this, "No Internet Connection", Toast.LENGTH_SHORT).show();
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
return params;
}
};
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(stringRequest);
}
Custom Adapter
public class Hotel_List_adapter extends BaseAdapter {
Context c;
ArrayList<HashMap<String, String>> list;
LayoutInflater inflater;
public Hotel_List_adapter(Context c, ArrayList<HashMap<String, String>> list) {
this.c=c;
this.list=list;
inflater=LayoutInflater.from(c);
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Holder holder = new Holder();
if (convertView == null) {
convertView = inflater.inflate(R.layout.custom_hotel_list,null);
holder.name=(TextView)convertView.findViewById(R.id.name);
holder.address =(TextView)convertView.findViewById(R.id.address);
holder.img=(ImageView) convertView.findViewById(R.id.img);
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
holder.name.setText(list.get(position).get("name"));
holder.address.setText(list.get(position).get("address"));
String image_string = list.get(position).get("image");//stars
if (image_string.equalsIgnoreCase("null")){
Log.e("no imG", "NO");
holder.img.setImageResource(R.drawable.no_image);
}
else
{
Glide.with(c).load(image_string).into(holder.img);
}
return convertView;
}
class Holder
{
TextView name, address;
}
}
What do you want? You want to scroll List after update List it reached at Top not at same List State? Is it Right?
Please Check this
private void scrollMyListViewToBottom() {
myListView.post(new Runnable() {
#Override
public void run() {
// Select the last row so it will scroll into view...
myListView.setSelection(myListAdapter.getCount() - 1);
}
});
}
check this Please.
Here is my code, I have to call method getServerResponse() for first time to get store in arraylist and when I scrolls down I have to call method getServerResponseScroll(). I got result and notify adapter but after scrolling down and up data changes position or may be not visible or get changed. I had created custom adapter for chat. Please help me how to sort out this kind of problem.
public class ChatDetailActivity extends AppCompatActivity {
String macAddress;
RecyclerView recyclerView;
Activity context;
ChatAdapter adapter;
EditText etText;
DatabaseAdapter db;
NetClient nc;
EditText edtSend;
Button btnSend;
DataPref mDataPref;
static int page = 0;
SwipeRefreshLayout mSwipeRefreshLayout;
JSONArray chatDetailListJsonArray;
String toId, channelId, toProfilePic, deviceToken, deviceOsType;
static ArrayList<ChatDetailModel> chatDetailModels = new ArrayList<ChatDetailModel>();
// User mchatUSer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_chat_detail);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
recyclerView = (RecyclerView) findViewById(R.id.card_recycler_view);
mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
edtSend = (EditText) findViewById(R.id.edtSend);
btnSend = (Button) findViewById(R.id.btnSend);
db = new DatabaseAdapter(this);
mDataPref = DataPref.getInstance(this);
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo wInfo = wifiManager.getConnectionInfo();
macAddress = wInfo.getMacAddress();
etText = (EditText) findViewById(R.id.etText);
toId = getIntent().getStringExtra("toId");
channelId = getIntent().getStringExtra("channelId");
toProfilePic = getIntent().getStringExtra("toProfilePic");
deviceToken = getIntent().getStringExtra("deviceToken");
deviceOsType = getIntent().getStringExtra("deviceOsType");
getServerResponse(this);
connectionForSend();
btnSend.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
sendMessage();
}
});
}
void getServerResponse(final Context context){
StringRequest strReqNewsList = new StringRequest(Request.Method.POST, Constants.getChatDetailListUrl, new
Response.Listener<String>() {
#Override
public void onResponse(String response) {
System.out.println("GetNewsList Response POST " + response);
/*
if (progressDialog != null) {
if (progressDialog.isShowing())
progressDialog.dismiss();
}*/
String message = "";
try {
JSONObject jsonObjectResponse = new JSONObject(response);
String responseStatus = jsonObjectResponse.getString("status");
message = jsonObjectResponse.getString("message");
if (responseStatus.equals("true")) {
chatDetailListJsonArray = jsonObjectResponse.getJSONArray("data");
if(page==0) {
GetChat.getInstance(context).deleteAllTableData("tbl_chat_detail", channelId);
}
// JSONObject chatListJsonObject= new JSONObject(gson.toJson(chatListJsonArray));
ArrayList<ChatDetailModel> chatlistModels = new Gson()
.fromJson(chatDetailListJsonArray.toString(),
new TypeToken<List<ChatDetailModel>>() {
}.getType());
for (int i = 0; i < chatDetailListJsonArray.length(); i++) {
ChatDetailModel chatlistModel = chatlistModels.get(i);
chatlistModel.setChannel_id(channelId);
GetChat.getInstance(context).addChatDetailList(new JSONObject(new Gson().toJson(chatlistModel)));
}
JSONArray chatListJsonArray = GetChat.getInstance(ChatDetailActivity.this).getChatDetailListJsonArray(channelId);
chatDetailModels = new Gson().fromJson(chatListJsonArray.toString(), new TypeToken<List<ChatDetailModel>>() {
}.getType());
implemantation();
}
} catch (JSONException e) {
e.printStackTrace();
JSONArray chatListJsonArray = GetChat.getInstance(ChatDetailActivity.this).getChatDetailListJsonArray(channelId);
chatDetailModels = new Gson().fromJson(chatListJsonArray.toString(), new TypeToken<List<ChatDetailModel>>() {
}.getType());
implemantation();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
/* if (progressDialog != null) {
if (progressDialog.isShowing())
progressDialog.dismiss();
}*/
error.printStackTrace();
JSONArray chatListJsonArray = GetChat.getInstance(ChatDetailActivity.this).getChatDetailListJsonArray(channelId);
chatDetailModels = new Gson().fromJson(chatListJsonArray.toString(), new TypeToken<List<ChatDetailModel>>() {
}.getType());
implemantation();
// DatabaseAdapter.deleteDatabase(context);
}
}){
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("to_id", toId);
params.put("from_id", mDataPref.getUserId());
params.put("page",page+"");
params.put("last_sync_date_time", "");
return params;
}
#Override
public Map<String, String> getHeaders() {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/x-www-form-urlencoded");
return params;
}
};
strReqNewsList.setRetryPolicy(new DefaultRetryPolicy(40 * 1000, 1, 1.0f));
AppController.getInstance(context).addToRequestQueue(strReqNewsList);
}
void getServerResponseScroll(final Context context) {
StringRequest strReqNewsList = new StringRequest(Request.Method.POST, Constants.getChatDetailListUrl, new
Response.Listener<String>() {
#Override
public void onResponse(String response) {
System.out.println("GetNewsList Response POST " + response);
String message = "";
try {
JSONObject jsonObjectResponse = new JSONObject(response);
String responseStatus = jsonObjectResponse.getString("status");
message = jsonObjectResponse.getString("message");
if (responseStatus.equals("true")) {
chatDetailListJsonArray = jsonObjectResponse.getJSONArray("data");
// JSONObject chatListJsonObject= new JSONObject(gson.toJson(chatListJsonArray));
ArrayList<ChatDetailModel> chatlistModels = new Gson()
.fromJson(chatDetailListJsonArray.toString(),
new TypeToken<List<ChatDetailModel>>() {
}.getType());
for (int i = 0; i < chatDetailListJsonArray.length(); i++) {
ChatDetailModel chatlistModel = chatlistModels.get(i);
chatlistModel.setChannel_id(channelId);
GetChat.getInstance(context).addChatDetailList(new JSONObject(new Gson().toJson(chatlistModel)));
}
JSONArray chatListJsonArray = GetChat.getInstance(ChatDetailActivity.this).getChatDetailListJsonArray(channelId);
// chatDetailModels.clear();
ArrayList<ChatDetailModel> chatDetailModels1 = new ArrayList<ChatDetailModel>();
chatDetailModels1 = new Gson().fromJson(chatListJsonArray.toString(), new TypeToken<List<ChatDetailModel>>() {
}.getType());
chatDetailModels.clear();
chatDetailModels.addAll(chatDetailModels1);
mSwipeRefreshLayout.setRefreshing(false);
adapter.notifyDataSetChanged();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
/* if (progressDialog != null) {
if (progressDialog.isShowing())
progressDialog.dismiss();
}*/
error.printStackTrace();
// DatabaseAdapter.deleteDatabase(context);
}
}) {
#Override
protected Map<String, String> getParams() {
Map<String, String> params = new HashMap<String, String>();
params.put("to_id", toId);
params.put("from_id", mDataPref.getUserId());
params.put("page", page + "");
params.put("last_sync_date_time", "");
return params;
}
#Override
public Map<String, String> getHeaders() {
Map<String, String> params = new HashMap<String, String>();
params.put("Content-Type", "application/x-www-form-urlencoded");
return params;
}
};
strReqNewsList.setRetryPolicy(new DefaultRetryPolicy(40 * 1000, 1, 1.0f));
AppController.getInstance(context).addToRequestQueue(strReqNewsList);
}
void implemantation() {
RecyclerView.LayoutManager manager = new LinearLayoutManager(this.getApplicationContext());
recyclerView.setLayoutManager(manager);
adapter = new ChatAdapter(this.getApplicationContext(), chatDetailModels);
recyclerView.setAdapter(adapter);
recyclerView.scrollToPosition(chatDetailModels.size() - 1);
recyclerView.addOnItemTouchListener(new RecyclerItemClickListener(this, recyclerView, new RecyclerItemClickListener.OnItemClickListener() {
#Override
public void onItemClick(View view, int position) {
Intent i = new Intent(ChatDetailActivity.this, ProfilesDetailActivity.class);
// i.putExtra("profileId",ChatlistModel.get(position).getId());
startActivity(i);
}
#Override
public void onItemLongClick(View view, int position) {
}
}));
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
page++;
getServerResponseScroll(ChatDetailActivity.this);
}
});
}
// Adapter for chat
public class ChatAdapter extends RecyclerView.Adapter<ChatAdapter.ViewHolder> {
private ArrayList<ChatDetailModel> chatDetailModels;
private Context context;
public ChatAdapter(Context context, ArrayList<ChatDetailModel> chatDetailModels) {
this.context = context;
this.chatDetailModels = chatDetailModels;
}
#Override
public ChatAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.chat_lsit_row, viewGroup, false);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(ViewHolder viewHolder, int position) {
if (chatDetailModels.get(position).getFrom_username().equalsIgnoreCase(mDataPref.getUsername())) {
viewHolder.messageTextRight.setText(chatDetailModels.get(position).getMessage());
viewHolder.chatLeftLayout.setVisibility(View.GONE);
if (mDataPref.getProfilePicFullUrl().equals("null") || mDataPref.getProfilePicFullUrl().equals("")) {
viewHolder.fromImageView.setImageResource(R.drawable.default_profile_pic);
} else {
Picasso.with(context).load(mDataPref.getProfilePicFullUrl()).placeholder(R.drawable.default_profile_pic).transform(new CircleTransform()).resize(40, 40).into(viewHolder.fromImageView);
}
} else {
viewHolder.messageTextLeft.setText(chatDetailModels.get(position).getMessage());
viewHolder.chatRightLayout.setVisibility(View.GONE);
if (toProfilePic.equals("null") || toProfilePic.equals("")) {
viewHolder.toImageView.setImageResource(R.drawable.default_profile_pic);
} else {
Picasso.with(context).load(toProfilePic).placeholder(R.drawable.default_profile_pic).transform(new CircleTransform()).resize(40, 40).into(viewHolder.toImageView);
}
}
}
#Override
public int getItemCount() {
return chatDetailModels.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
private LinearLayout chatLeftLayout;
private ImageView toImageView;
private TextView messageTextLeft;
private LinearLayout chatRightLayout;
private TextView messageTextRight;
private ImageView fromImageView;
public ViewHolder(View view) {
super(view);
chatLeftLayout = (LinearLayout) view.findViewById(R.id.chatLeftLayout);
toImageView = (ImageView) view.findViewById(R.id.toImageView);
messageTextLeft = (TextView) view.findViewById(R.id.message_text_left);
chatRightLayout = (LinearLayout) view.findViewById(R.id.chatRightLayout);
messageTextRight = (TextView) view.findViewById(R.id.message_text_right);
fromImageView = (ImageView) view.findViewById(R.id.fromImageView);
}
}
}
}
From onSaveInstanceState documentation:
Called when the LayoutManager should save its state. This is a good time to save your
* scroll position, configuration and anything else that may be required to restore the same
* layout state if the LayoutManager is recreated.
* RecyclerView does NOT verify if the LayoutManager has changed between state save and
* restore. This will let you share information between your LayoutManagers but it is also
* your responsibility to make sure they use the same parcelable class.
To get current state of recyclerview:
private Parcelable recyclerViewState = recyclerView.getLayoutManager().onSaveInstanceState();
to restore saved instance:
recyclerView.getLayoutManager().onRestoreInstanceState(recyclerViewState);
How can i pass the position of item using intent to start a new activity?
I want to start a new activity called single which displays the rating of the movie correspondingly..pls help
I have been trying this for the past two days.
Here is the code:
public class NowPlaying extends Fragment {
private static final String TAG = NowPlaying.class.getSimpleName();
// Movies json url
private static final String url = "http://private-8149-themoviedb.apiary-mock.com/3/movie/now_playing?api_key=";
private ProgressDialog pDialog;
private List<NowPlayingInfo> bottom = new ArrayList<NowPlayingInfo>() ;
NowPlayingAdapter adapter;
RecyclerView recyclerView;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_main, container, false);
ActionBar toolbar = ((AppCompatActivity) getActivity()).getSupportActionBar();
toolbar.setTitle("Now playing");
recyclerView = (RecyclerView) v.findViewById(R.id.cardList);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(linearLayoutManager);
adapter = new NowPlayingAdapter(getActivity(), bottom);
recyclerView.setAdapter(adapter);
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading...");
pDialog.show();
adapter.SetOnItemClickListener(new NowPlayingAdapter.OnItemClickListener() {
#Override
public void onItemClick(View v, int position) {
// do something with position
Intent i = new Intent(v.getContext(), Single.class);
//pass the position of the item to single class
v.getContext().startActivity(i);
}
});
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Log.d(TAG, response.toString());
hidePDialog();
try {
JSONArray jsonArray = response.getJSONArray("results");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
NowPlayingInfo trailer = new NowPlayingInfo();
trailer.setTitle(jsonObject.getString("original_title"));
String iss = "http://image.tmdb.org/t/p/w500" + jsonObject.getString("poster_path") ;
trailer.setImage(iss);
bottom.add(trailer);
adapter.notifyDataSetChanged();
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
AppController.getInstance().addToRequestQueue(jsonObjectRequest);
return v;
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
}
adapter.SetOnItemClickListener(new NowPlayingAdapter.OnItemClickListener() {
#Override
public void onItemClick(View v, int position) {
NowPlayingInfo _nowPlaying = bottom.get(position);
// do something with position
Intent i = new Intent(v.getContext(), Single.class);
//pass the position of the item to single class
i.putExtra("ISS", _nowPlaying.getImage()); //you can put your current playing info.
i.putExtra("POSITION", position); //you can put your position to next activity.
v.getContext().startActivity(i);
}
});
Add this in your SingleInfo Class.
String _rating = "";
public String get_rating() {
return _rating;
}
public void set_rating(String _rating) {
this._rating = _rating;
}
Add this in your Single class -
int _currentPos = 0 ; //Global variable .
_currentPos = getIntent().getIntExtra("position", 0);// paste this in onCreate()
Add this code in onResponse of Single Class -
try {
JSONArray jsonArray = response.getJSONArray("results");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
SingleInfo s = new SingleInfo();
s.set_rating(jsonObject.getString("rating"));
single.add(s);
}
//changed by Shoeb
SingleInfo _singleInfo = single.get(_currentPos); //position from previous activity
textView.setText(_singleInfo.get_rating());
//end changes
} catch (JSONException e) {
e.printStackTrace();
}
Add an extra to your intent
i.putExtra("position",position);
And on the other activity:
getIntent().getIntExtra("position", 0);