Develop Reference

How to fetch json data on scoll to bottom in Fragment ListView

I want to fetch 10 records in listview and other records fetch on scroll to bottom. I'm a new in this please help me. Here's my fragment of Java code and adapter:
Latest_Fragment.java
private static final String TAG = LatestFragment.class.getSimpleName();
// Movies json url
private static final String url = "http://abc.news/android/lastest.php?page=1";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private List<Movie> additems;
private ListView listView;
private CustomListAdapter adapter;
boolean flag_loading = true;
private static String Title="title";
private static String Genre="genre";
private static String Rating="rating";
private static String Sec_id="secid";
private static String Category="category";
private static String bitmap="thumbnailUrl";
ListView list;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.latest_layout, container, false);
//getActivity().getActionBar().setDisplayHomeAsUpEnabled(true);
Intent intent2 = new Intent();
getActivity().setResult(Activity.RESULT_OK, intent2);
list = (ListView) v.findViewById(R.id.list);
adapter = new CustomListAdapter(getActivity(), movieList);
list.setAdapter(adapter);
pDialog = new ProgressDialog(getActivity());
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// Creating volley request obj
JsonArrayRequest movieReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// flag_loading = false;
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Movie movie = new Movie();
movie.setSec_id(obj.getString("sec_id"));
movie.setCategory(obj.getString("category"));
movie.setTitle(obj.getString("title"));
movie.setThumbnailUrl(obj.getString("image"));
movie.setRating(obj.getString("rating"));
// movie.setYear(obj.getString("releaseYear"));
movie.setGenre(obj.getString("genre"));
// Genre is json array
// adding movie to movies array
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
if (error instanceof NoConnectionError){
Toast.makeText(getActivity().getBaseContext(), "Bummer..There's No Internet connection!", Toast.LENGTH_LONG).show();
}
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(movieReq);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(getActivity(), News_Detail.class);
bitmap = ((Movie)movieList.get(position)).getThumbnailUrl();
intent.putExtra("images", bitmap);
final String names = ((TextView) view.findViewById(R.id.title)).getText().toString();
intent.putExtra(Title, names);
String genredescription = ((TextView) view.findViewById(R.id.genre)).getText().toString(); //must for send data
intent.putExtra(Genre, genredescription);
String date = ((TextView) view.findViewById(R.id.rating)).getText().toString();
intent.putExtra(Rating, date);
startActivity(intent);
}
});
return v;
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getActivity().getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
}
customlistadapter.java
private Activity activity;
private LayoutInflater inflater;
private List<Movie> movieItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public CustomListAdapter(Activity activity, List<Movie> movieItems) {
this.activity = activity;
this.movieItems = movieItems;
}
#Override
public int getCount() {
return movieItems.size();
}
#Override
public Object getItem(int location) {
return movieItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
// first row layout change below code is working
#Override
public int getViewTypeCount() { return 2; }
//if remove below code then chage layout randomly
#Override
public int getItemViewType(int position) {
if (position == 0) {
return 0;
} else {
return 1;
}
}
// first row layout change above code is working
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
if(position == 0) {
convertView = inflater.inflate(R.layout.list_row2, null);
}else
{
convertView = inflater.inflate(R.layout.list_row, null);
}
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
NetworkImageView thumbNail = (NetworkImageView) convertView.findViewById(R.id.thumbnail);
final TextView sec_id = (TextView) convertView.findViewById(R.id.sec_id);
final TextView category = (TextView) convertView.findViewById(R.id.category);
TextView title = (TextView) convertView.findViewById(R.id.title);
TextView rating = (TextView) convertView.findViewById(R.id.rating);
TextView genre = (TextView) convertView.findViewById(R.id.genre);
//TextView year = (TextView) convertView.findViewById(R.id.releaseYear);
// getting movie data for the row
Movie m = movieItems.get(position);
// thumbnail image
thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
// title
title.setText(m.getTitle());
// rating
rating.setText(m.getRating());
// genre
genre.setText(m.getGenre());
sec_id.setText(m.getSec_id());
category.setText(m.getCategory());
// release year
// year.setText(m.getYear());
ImageView btn = (ImageView) convertView.findViewById(R.id.share);
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TEXT, "\n" + "\n" + "http://vasundharadeep.news/News/"+sec_id.getText().toString()+"/"+category.getText().toString());
activity.startActivity(intent);
}
});
return convertView;
}
}

Abstract class
public abstract class HidingScrollListener implements AbsListView.OnScrollListener {
private static final int HIDE_THRESHOLD = 15;
public boolean controlsVisible = true;
public int scrolledDistance = 0;
public int previousTotal = 0;
public boolean loading = true;
public int current_page = 1;
public LinearLayoutManager mLinearLayoutManager;
private int visibleThreshold = 2;
public HidingScrollListener(LinearLayoutManager layoutManager) {
this.mLinearLayoutManager = layoutManager;
}
#Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
int totalItemCount) {
// int firstVisibleItem =firstVisibleItem;
if (firstVisibleItem == 0) {
if (!controlsVisible) {
onShow();
controlsVisible = true;
}
} else {
if (scrolledDistance > HIDE_THRESHOLD && controlsVisible) {
onHide();
controlsVisible = false;
scrolledDistance = 0;
} else if (scrolledDistance < -HIDE_THRESHOLD && !controlsVisible) {
onShow();
controlsVisible = true;
scrolledDistance = 0;
}
}
if (loading) {
if (totalItemCount > previousTotal) {
loading = false;
previousTotal = totalItemCount;
}
}
if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) {
current_page++;
onLoadMore(current_page);
loading = true;
}
}
public abstract void onHide();
public abstract void onShow();
public abstract void onLoadMore(int current_page);
}
// Current Page getter setter
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}

Check it out below code
public class MyFragment extends Fragment implements OnScrollListener {
private ListView listView;
private ArrayList<DataModel> dataList = new ArrayList<DataModel>();
private boolean mHasRequestedMore;
onCreateView(…..){
listView = view.findViewById();
listView.setonScrollLestener(this);
callWebservice();
}
#Override
public void onScroll(final AbsListView view, final int firstVisibleItem, final int visibleItemCount, final int totalItemCount) {
if (!mHasRequestedMore) {
int lastInScreen = firstVisibleItem + visibleItemCount;
if (lastInScreen >= totalItemCount) {
mHasRequestedMore = true;
callWebservice();
}
}
}
#Override
public void onScrollStateChanged(AbsListView view, int scrollState{}

How to create a OnItemClickListener for custom list view when passing data from php using json

I am creating an app where a list of hotels will be shown, all the data is coming from MySQL using JSON and PHP, I created the custom list view by extending the base adapter to a custom one, but I am not able to implement a OnItemClickListener for the listview, as i want to show the Hotel Name of that row in Toast whenever the user clicks on a row of list view. I tried various example available on internet, but i just doesn't work.
Adapter
public class CustomListAdapterHotel extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<WorldsBillionaires> billionairesItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public CustomListAdapterHotel(Activity activity, List<WorldsBillionaires> billionairesItems) {
this.activity = activity;
this.billionairesItems = billionairesItems;
}
#Override
public int getCount() {
return billionairesItems.size();
}
#Override
public Object getItem(int location) {
return billionairesItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.list_hotel, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
//NetworkImageView thumbNail = (NetworkImageView) convertView.findViewById(R.id.thumbnail);
TextView hotel_name = (TextView) convertView.findViewById(R.id.hotel_name);
TextView zone = (TextView) convertView.findViewById(R.id.zone);
TextView contact_person = (TextView) convertView.findViewById(R.id.contact_person);
TextView contact_number = (TextView) convertView.findViewById(R.id.contact_number);
TextView btc_direct = (TextView) convertView.findViewById(R.id.btcdirect);
// getting billionaires data for the row
WorldsBillionaires m = billionairesItems.get(position);
// name
hotel_name.setText(String.valueOf(m.getHotel_Name()));
zone.setText(String.valueOf(m.getHotel_Zone()));
contact_person.setText(String.valueOf(m.getContact_Person()));
contact_number.setText(String.valueOf(m.getContact_Number()));
btc_direct.setText(String.valueOf(m.getBtc_Direct()));
return convertView;
}
}
Model
public class WorldsBillionaires {
private String hotel_name,hotel_zone,contact_person,contact_number,btc_direct;
public WorldsBillionaires(String hotel_name, String hotel_zone, String contact_person, String contact_number, String btc_direct) {
this.hotel_name=hotel_name;
this.hotel_zone=hotel_zone;
this.contact_person=contact_person;
this.contact_number=contact_number;
this.btc_direct=btc_direct;
}
public WorldsBillionaires() {
}
public String getZone() {
return zone;
}
public void setZone(String zone) {
this.zone = zone;
}
public String getThumbnailUrl() {
return thumbnailUrl;
}
public void setThumbnailUrl(String thumbnailUrl) {
this.thumbnailUrl = thumbnailUrl;
}
public String getHotel_Name() {
return hotel_name;
}
public void setHotel_Name(String hotel_name) {
this.hotel_name = hotel_name;
}
public String getHotel_Zone() {
return hotel_zone;
}
public void setHotel_Zone(String hotel_zone) {
this.hotel_zone = hotel_zone;
}
public String getContact_Person() {
return contact_person;
}
public void setContact_Person(String contact_person) {
this.contact_person = contact_person;
}
public String getContact_Number() {
return contact_number;
}
public void setContact_Number(String contact_number) {
this.contact_number = contact_number;
}
public String getBtc_Direct() {
return btc_direct;
}
public void setBtc_Direct(String btc_direct) {
this.btc_direct = btc_direct;
}
}
Main Activity
public class ShowHotel extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
// Billionaires json url
private ProgressDialog pDialog;
private List<WorldsBillionaires> worldsBillionairesList = new ArrayList<WorldsBillionaires>();
private ListView listView;
private CustomListAdapterHotel adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_show_hotel);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setLogo(R.mipmap.ic_launcher);
getSupportActionBar().setDisplayUseLogoEnabled(true);
listView = (ListView) findViewById(R.id.list);
adapter = new CustomListAdapterHotel(this, worldsBillionairesList);
listView.setAdapter(adapter);
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// Creating volley request obj
JsonArrayRequest billionaireReq = new JsonArrayRequest("http://192.168.247.1/AdminBihar/getHotel.php?zone="+methods.zone,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
WorldsBillionaires worldsBillionaires = new WorldsBillionaires();
worldsBillionaires.setHotel_Name(obj.getString("hotel_name"));
worldsBillionaires.setThumbnailUrl(obj.getString("image"));
worldsBillionaires.setHotel_Zone(obj.getString("zone"));
worldsBillionaires.setContact_Person(obj.getString("contact_person"));
worldsBillionaires.setContact_Number(obj.getString("contact_number"));
worldsBillionaires.setBtc_Direct(obj.getString("btc_direct"));
// adding Billionaire to worldsBillionaires array
worldsBillionairesList.add(worldsBillionaires);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(billionaireReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
}

so after you get json data, in activity that shows your list do something like this:
public class DisplayListView extends AppCompatActivity {
ListView listView;
protected void onCreate(){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_display_list_view);
listView = (ListView) findViewById(R.id.listview);
hotelAdapter = new CustomListAdapterHotel (this, R.layout.row_layout);
listView.setAdapter(hotelAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id){
Model stuff = (Model) hotelAdapter.getItem(position);
String hotelName = stuff.getHotel_Name();
Toast.makeText(getApplicationContext(), hotelName, Toast.LENGTH_SHORT).show();
}
});
there, this worked for me :)

Create Cache listview of my data populated from the server

I want to create a cache that stores present listview populated from the server which means even if users are not online they can have access to the listview data been loaded before going offline. These are my codes that contains the swipelistlayout and the main class Tab4
public class Tab4 extends android.support.v4.app.Fragment implements SwipeRefreshLayout.OnRefreshListener {
private int index;
ImageSwitcher switcher;
android.os.Handler Handler = new android.os.Handler();
private SwipeRefreshLayout swipeRefreshLayout;
private SwipeListAdapter adapter;
private List<Movie> movieList;
private ListView listView;
private String URL_TOP_250 = "http://172.126.43.152/locator/test/refractor2.php?offset=";
private int offSet = 0;
private static final String TAG = Tab1.class.getSimpleName();
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View vi = inflater.inflate(R.layout.tab_4,container,false);
listView = (ListView) vi.findViewById(R.id.list4);
listView.setBackgroundColor(Color.WHITE);
// Adding request to request queue
//Editted AppController.getInstance().addToRequestQueue(movieReq);
swipeRefreshLayout = (SwipeRefreshLayout) vi.findViewById(R.id.swipe_refresh_layout);
movieList = new ArrayList<>();
adapter = new SwipeListAdapter(getActivity(), movieList);
listView.setAdapter(adapter);
//getView().setOnClickListener();
swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.post(new Runnable() {
#Override
public void run() {
swipeRefreshLayout.setRefreshing(true);
fetchMovies();
}
}
);
return vi;
}
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Intent intent = new Intent();
intent.setClass(getActivity(), Newbies.class);
//String text = String.valueOf(movieList.get(position));
String text = movieList.get(position).getSlug();
//Toast.makeText(getActivity().getApplicationContext(), text, Toast.LENGTH_LONG).show();
Intent i = new Intent(getActivity(), Newbies.class);
i.putExtra("TEXT", text);
startActivity(i);
}
});
}
#Override
public void onRefresh() {
fetchMovies();
}
private void fetchMovies() {
// showing refresh animation before making http call
swipeRefreshLayout.setRefreshing(true);
// appending offset to url
String url = URL_TOP_250 + offSet;
// Volley's json array request object
JsonArrayRequest req = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
if (response.length() > 0) {
// looping through json and adding to movies list
for (int i = 0; i < response.length(); i++) {
try {
JSONObject movieObj = response.getJSONObject(i);
// Movie m = new Movie();
int rank = movieObj.getInt("rank");
String title = movieObj.getString("postTitle");
String author = movieObj.getString("postAuthor");
String slug = movieObj.getString("postSlug");
String categories = "technologies";
String thumbnailUrl = movieObj.getString("postPic");
String year = movieObj.getString("postDate");
Movie m = new Movie(rank, title, author, slug, categories, thumbnailUrl, year);
movieList.add(0, m);
// updating offset value to highest value
if (rank >= offSet)
offSet = rank;
} catch (JSONException e) {
Log.e(TAG, "JSON Parsing error: " + e.getMessage());
}
}
adapter.notifyDataSetChanged();
}
// stopping swipe refresh
swipeRefreshLayout.setRefreshing(false);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Server Error: " + error.getMessage());
Toast.makeText(getActivity().getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
// stopping swipe refresh
swipeRefreshLayout.setRefreshing(false);
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req);
}
}
And the SwipeListAdapter class is below...
public class SwipeListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
private List<Movie> movieList;
private String[] bgColors;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public SwipeListAdapter(Activity tab1, List<Movie> movieList) {
this.activity = tab1;
this.movieList = movieList;
bgColors = activity.getApplicationContext().getResources().getStringArray(R.array.movie_serial_bg);
}
#Override
public int getCount() {
return movieList.size();
}
#Override
public Object getItem(int location) {
return movieList.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.list_row, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
NetworkImageView thumbNail = (NetworkImageView) convertView
.findViewById(R.id.thumbnail);
TextView title = (TextView) convertView.findViewById(R.id.title);
TextView author = (TextView) convertView.findViewById(R.id.author);
//String slug;
TextView category = (TextView) convertView.findViewById(R.id.category);
TextView year = (TextView) convertView.findViewById(R.id.releaseYear);
// getting movie data for the row
Movie m = movieList.get(position);
// thumbnail image
thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
// title
title.setText(m.getTitle());
author.setText(m.getAuthor());
// slug.setText(m.getAuthor());
category.setText(m.getCategories());
// release year
year.setText(String.valueOf(m.getYear()));
return convertView;
}
}
Any help will be appreciated. Thanks.

Android customListView extend BaseAdapter

I am working on parsing JSON output from server using volley. I have created a customList extending BaseAdapter,When i click on the row i need to call another activity which show remaining data of json.
Here is the JSON output
{
"id":"12",
"company_name":"Kartik",
"company_logo":"",
"job_title":"php developer",
"experience":"2 to 3",
"location":"city",
"walkin_date":"5:11:2016",
"salary":"3.4-4.4L pa",
"qualification":"B.E",
"address":""
}
Here is the code of CustomList view
`public class CustomLIstAdapter extends BaseAdapter
{
private Activity activity;
private LayoutInflater inflater;
private List<Movie> movieList;
ImageLoader imageLoader = Controller.getInstance().getImageLoader();
public CustomLIstAdapter(Activity activity, List<Movie> movieItems) {
this.activity = activity;
this.movieList = movieItems;
}
public int getCount() {
return movieList.size();
}
public Object getItem(int location) {
return movieList.get(location);
}
// this will retrive the current touch id
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.list_row, null);
if (imageLoader == null)
imageLoader = Controller.getInstance().getImageLoader();
NetworkImageView thumbnail = (NetworkImageView) convertView.findViewById(R.id.thumbnail);
TextView title = (TextView) convertView.findViewById(R.id.title);
TextView rating = (TextView) convertView.findViewById(R.id.rating)
TextView genre = (TextView) convertView.findViewById(R.id.genre);
TextView year = (TextView)convertView.findViewById(R.id.releaseYear);
Movie m = movieList.get(position);
thumbnail.setImageUrl(m.getCompanyLogo(), imageLoader)
title.setText(m.getCompanyName());
rating.setText(m.getTitle());
year.setText("Walking Date : " + m.getWalkinDate());
return convertView;
}
}
Here is the main Activity code
`public class MainActivity extends AppCompatActivity {
private static final String TAG = MainActivity.class.getSimpleName();
private static final String url="http://10.0.3.2:80/demoApi/api/users";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private ListView listView;
private CustomLIstAdapter adapter;
private SwipeRefreshLayout swipeRefreshLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setVisibility(View.INVISIBLE);
// accessing the layout of the sumeeth refresh.
swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swiperefresh);
listView = (ListView) findViewById(R.id.list);
adapter = new CustomLIstAdapter(this, movieList);
listView.setAdapter(adapter);
/*Testing on swipe listener.*/
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
retriveDataJob();
}
});
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.post(new Runnable() {
#Override
public void run() {
swipeRefreshLayout.setRefreshing(true);
//call which method to refresh.
retriveDataJob();
}
});
}
private void retriveDataJob() {
//this method will call the server and update the list of things
swipeRefreshLayout.setRefreshing(true);
JsonArrayRequest movieReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Movie movie = new Movie();
movie.setCompanyName(obj.getString("company_name"));
movie.setCompanyLogo(obj.getString("company_logo"));
movie.setTitle(obj.getString("job_title"));
movie.setWalkinDate(obj.getString("walkin_date"));
movie.setLocation(obj.getString("location"));
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
swipeRefreshLayout.setRefreshing(false);
}
//stop the refresher
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
//stopHere
swipeRefreshLayout.setRefreshing(false);
}
});
// Adding request to request queue
Controller.getInstance().addToRequestQueue(movieReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}`

Here is some hint for your confusion so define your response of json in fragment activity as public
i.e
public MyJsonresponse mResponse;
and than implement listener to your listview
lv.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> adapter, View v, int position,
long arg3)
{
//Call Your fragment to show full json data detail.
// do what you intend to do on click of listview row
}
});
Create one method in your fragment.ex
private MainFragmentActivity mainActivity() {
return ((MainFragmentActivity) getActivity());
}
after that you can call your fragment activity response inside your second screen or fragment like mainActivity().mResponse
This is it
Regards.

lv.setOnItemClickListener(new OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> adapter, View v, int position,
long arg3)
{
//get all the data from list and send to next activity where you can view your data as you want:
Intent i1=new Intent(A.this, B.class);
i1.putExtra("data", lv.get(position).getData());
startActivity(i1);
}
});
Now in new Activity get the data:
String data=getIntent.getStringExtra("data");

How to implement coverflow layout from existing gridview images

i am using eclipse.
Basically what i am trying to implement is that , that i have a gridView which is fetching images from mysql database dynamically using JSON.
Now , instead of gridview i want to show them as coverflow view.
I have searched through the internet , but was not able to find any library or example for dynamic images , i only found for static images stored in the app itself and not on external database.
My code are as follows:-
MainActivity.java:-
public class MainActivity extends Activity implements OnClickListener {
// Log tag
private static final String TAG = MainActivity.class.getSimpleName();
// Movies json url
private static final String url = "http://eventassociate.com/wedding/photomania";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private PullToRefreshGridView mPullRefreshGridView;
private GridView gridView;
private CustomListAdapter adapter;
ImageButton blackcapture;
private static int RESULT_LOAD_IMAGE = 1;
String picturePath;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.gallary_activity_main);
overridePendingTransition(R.anim.push_down_in, R.anim.push_down_out);
mPullRefreshGridView = (PullToRefreshGridView) findViewById(R.id.list);
gridView = mPullRefreshGridView.getRefreshableView();
mPullRefreshGridView.setOnRefreshListener(new OnRefreshListener2<GridView>() {
#Override
public void onPullDownToRefresh(PullToRefreshBase<GridView> refreshView) {
adapter.notifyDataSetChanged();
gridView.setAdapter(adapter);
gridView.invalidateViews();
mPullRefreshGridView.onRefreshComplete();
}
adapter = new CustomListAdapter(this, movieList);
gridView.setAdapter(adapter);
gridView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
Movie m5 = movieList.get(position);
Intent i = new Intent(getApplicationContext(),
FullImageActivity.class);
i.putExtra("movieobject", m5);
startActivity(i);
}
});
Adapter Class:-
public class CustomListAdapter extends BaseAdapter {
private Activity activity;
private LayoutInflater inflater;
List<Movie> movieItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public CustomListAdapter(Activity activity, List<Movie> movieItems) {
this.activity = activity;
this.movieItems = movieItems;
}
#Override
public int getCount() {
return movieItems.size();
}
#Override
public Object getItem(int location) {
return movieItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (convertView == null)
convertView = inflater.inflate(R.layout.gallary_list_row, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
NetworkImageView thumbNail = (NetworkImageView) convertView
.findViewById(R.id.thumbnail);
// ...............................................
TextView title = (TextView) convertView.findViewById(R.id.title);
// getting movie data for the row
Movie m = movieItems.get(position);
// thumbnail image
thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
// title
title.setText(m.getTitle());
return convertView;
}
Movie.java:-
public class Movie implements Parcelable{
private String title,thumbnailUrl;
public Movie() {
// TODO Auto-generated constructor stub
}
public Movie(String name, String thumbnailUrl
) {
this.title = name;
this.thumbnailUrl = thumbnailUrl;
}
public String getTitle() {
return title;
}
public void setTitle(String name) {
this.title = name;
}
public String getThumbnailUrl() {
return thumbnailUrl;
}
public void setThumbnailUrl(String thumbnailUrl) {
this.thumbnailUrl = "http://eventassociate.com/wedding/"+thumbnailUrl;
}
// Parcelling part
public Movie(Parcel in){
String[] data = new String[2];
in.readStringArray(data);
this.title = data[0];
this.thumbnailUrl = data[1];
}
#Override
public int describeContents() {
// TODO Auto-generated method stub
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeStringArray(new String[] {this.title,
this.thumbnailUrl,
});
}
public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
public Movie createFromParcel(Parcel in) {
return new Movie(in);
}
public Movie[] newArray(int size) {
return new Movie[size];
}
};
}
I successfully implemented this as GridView , but i am facing trouble in implementing this as coverflow design or something like that.
I searched on the net and i find this code , but only for static images:-
public class SimpleExample extends Activity {
// =============================================================================
// Child views
// =============================================================================
private FancyCoverFlow fancyCoverFlow;
// =============================================================================
// Supertype overrides
// =============================================================================
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.fancyCoverFlow = (FancyCoverFlow) this.findViewById(R.id.fancyCoverFlow);
this.fancyCoverFlow.setAdapter(new FancyCoverFlowSampleAdapter());
this.fancyCoverFlow.setUnselectedAlpha(1.0f);
this.fancyCoverFlow.setUnselectedSaturation(0.0f);
this.fancyCoverFlow.setUnselectedScale(0.5f);
this.fancyCoverFlow.setSpacing(50);
this.fancyCoverFlow.setMaxRotation(0);
this.fancyCoverFlow.setScaleDownGravity(0.2f);
this.fancyCoverFlow.setActionDistance(FancyCoverFlow.ACTION_DISTANCE_AUTO);
}
// =============================================================================
// Private classes
// =============================================================================
}
Adapter.java:-
public class FancyCoverFlowSampleAdapter extends FancyCoverFlowAdapter {
// =============================================================================
// Private members
// =============================================================================
private int[] images = {R.drawable.image1, R.drawable.image2, R.drawable.image3, R.drawable.image4, R.drawable.image5, R.drawable.image6,};
// =============================================================================
// Supertype overrides
// =============================================================================
#Override
public int getCount() {
return images.length;
}
#Override
public Integer getItem(int i) {
return images[i];
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getCoverFlowItem(int i, View reuseableView, ViewGroup viewGroup) {
ImageView imageView = null;
if (reuseableView != null) {
imageView = (ImageView) reuseableView;
} else {
imageView = new ImageView(viewGroup.getContext());
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setLayoutParams(new FancyCoverFlow.LayoutParams(300, 400));
}
imageView.setImageResource(this.getItem(i));
return imageView;
}
}
Can someone help me , in solving my problem.
Thanks.
My final code with coverflow:-
MainActivity:-
public class MainActivity extends Activity implements OnClickListener {
// Log tag
private static final String TAG = album.MainActivity.class.getSimpleName();
// Movies json url
private static final String url = "http://eventassociate.com/wedding/androidadminimages";
private ProgressDialog pDialog;
private List<Moviealbum> movieList = new ArrayList<Moviealbum>();
private FancyCoverFlow fancyCoverFlow;
private CustomListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.album_activity_main);
overridePendingTransition(R.anim.push_down_in, R.anim.push_down_out);
this.fancyCoverFlow = (FancyCoverFlow) this.findViewById(R.id.list);
adapter = new CustomListAdapter(this, movieList);
this.fancyCoverFlow.setAdapter(new CustomListAdapter(this, movieList));
this.fancyCoverFlow.setUnselectedAlpha(1.0f);
this.fancyCoverFlow.setUnselectedSaturation(0.0f);
this.fancyCoverFlow.setUnselectedScale(0.5f);
this.fancyCoverFlow.setSpacing(50);
this.fancyCoverFlow.setMaxRotation(0);
this.fancyCoverFlow.setScaleDownGravity(0.2f);
this.fancyCoverFlow.setActionDistance(FancyCoverFlow.ACTION_DISTANCE_AUTO);
fancyCoverFlow.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
Moviealbum m5 = movieList.get(position);
Intent i = new Intent(getApplicationContext(),album.
FullImageActivity.class);
i.putExtra("movieobject", m5);
startActivity(i);
}
});
pDialog = new ProgressDialog(this);
// Showing progress dialog before making http request
pDialog.setMessage("Loading...");
pDialog.show();
// changing action bar color
getActionBar().setBackgroundDrawable(
new ColorDrawable(Color.parseColor("#1b1b1b")));
// Creating volley request obj
JsonArrayRequest movieReq = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
hidePDialog();
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
Moviealbum movie = new Moviealbum();
movie.setTitle(obj.getString("no"));
movie.setThumbnailUrl(obj.getString("alinks"));
// adding movie to movies array
movieList.add(movie);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
// so that it renders the list view with updated data
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
hidePDialog();
}
});
// Adding request to request queue...................................
AppController.getInstance().addToRequestQueue(movieReq);
}
#Override
public void onDestroy() {
super.onDestroy();
hidePDialog();
}
private void hidePDialog() {
if (pDialog != null) {
pDialog.dismiss();
pDialog = null;
}
}
AdapterClass :-
public class CustomListAdapter extends FancyCoverFlowAdapter {
private Activity activity;
private LayoutInflater inflater;
List<Moviealbum> movieItems;
ImageLoader imageLoader = AppController.getInstance().getImageLoader();
public CustomListAdapter(Activity activity, List<Moviealbum> movieItems) {
this.activity = activity;
this.movieItems = movieItems;
}
#Override
public int getCount() {
return movieItems.size();
}
#Override
public Object getItem(int location) {
return movieItems.get(location);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getCoverFlowItem(int position, View reuseableView, ViewGroup viewGroup) {
if (inflater == null)
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if (reuseableView == null)
reuseableView = inflater.inflate(R.layout.gallary_list_row, null);
if (imageLoader == null)
imageLoader = AppController.getInstance().getImageLoader();
NetworkImageView thumbNail = (NetworkImageView) reuseableView
.findViewById(R.id.thumbnail);
// ...............................................
TextView title = (TextView) reuseableView.findViewById(R.id.title);
// getting movie data for the row
Moviealbum m = movieItems.get(position);
// thumbnail image
thumbNail.setImageUrl(m.getThumbnailUrl(), imageLoader);
// title
title.setText(m.getTitle());
return reuseableView;
}
The app runs fine , but after loading blank screen is shown with no images.
Logcat:-

Your issue isn't with the CoverFlow code, but rather where you're doing your network operation. On app load, begin your network request for your JSON payload, show a spinner to show the app is loading, and populate your Adapter once your images are loaded. I'm assuming you have network code already given your GridView implementation? Let me know if I've missed something. I hope that helps!
EDIT:
Once you've added images to your Adapter make sure you call notifyDataSetChanged() to tell your adapter to reload its views.
EDIT 2:
Look at this line here:
this.fancyCoverFlow.setAdapter(new CustomListAdapter(this, movieList));
You're passing a new CustomListAdapter rather than passing in your adapter variable. Try fixing that and let me know if it works.