i want to slide images ,images are coming through json

i want to slide images ,images are coming through json - android

i want to slide images ,images are coming through json . Using of this code it is coming in list view . But i want all ten images should come as a slider .How van i do this?
I want to slide image one by one in horizontal.
i am getting like this image
see in the image .
MainActivity
public class MainActivity extends Activity {
// Log tag
private static final String TAG = MainActivity.class.getSimpleName();
private static final String url = "http://20dde605.ngrok.io/api/v1/restaurants/get_featured_restaurants";
// Movies json url
//private static final String url = "http://api.androidhive.info/json/movies.json";
private ProgressDialog pDialog;
private List<Movie> movieList = new ArrayList<Movie>();
private ListView listView;
private CustomListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView) findViewById(R.id.list);
adapter = new CustomListAdapter(this, movieList);
listView.setAdapter(adapter);
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);
Movie movie = new Movie();
//movie.setTitle(obj.getString("title"));
//movie.setName(obj.getString("name"));
//movie.setThumbnailUrl(obj.getString("image"));
movie.setThumbnailUrl(obj.getString("org_image_url"));
//movie.setAverage_ratings(obj.getString("average_ratings"));
//movie.setCuisine(obj.getString("cuisine"));
//movie.setAddress(obj.getJSONObject("address").getString("area"));
//movie.setAddress(obj.getString("address"));
//movie.setYear(obj.getInt("releaseYear"));
// Genre is json array
/*JSONArray genreArry = obj.getJSONArray("genre");
ArrayList<String> genre = new ArrayList<String>();
for (int j = 0; j < genreArry.length(); j++) {
genre.add((String) genreArry.get(j));
}
movie.setGenre(genre);*/
// 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;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Appcontroller.java
public class AppController extends Application {
public static final String TAG = AppController.class.getSimpleName();
private RequestQueue mRequestQueue;
private ImageLoader mImageLoader;
private static AppController mInstance;
#Override
public void onCreate() {
super.onCreate();
mInstance = this;
}
public static synchronized AppController getInstance() {
return mInstance;
}
public RequestQueue getRequestQueue() {
if (mRequestQueue == null) {
mRequestQueue = Volley.newRequestQueue(getApplicationContext());
}
return mRequestQueue;
}
public ImageLoader getImageLoader() {
getRequestQueue();
if (mImageLoader == null) {
mImageLoader = new ImageLoader(this.mRequestQueue,
new LruBitmapCache());
}
return this.mImageLoader;
}
public <T> void addToRequestQueue(Request<T> req, String tag) {
// set the default tag if tag is empty
req.setTag(TextUtils.isEmpty(tag) ? TAG : tag);
getRequestQueue().add(req);
}
public <T> void addToRequestQueue(Request<T> req) {
req.setTag(TAG);
getRequestQueue().add(req);
}
public void cancelPendingRequests(Object tag) {
if (mRequestQueue != null) {
mRequestQueue.cancelAll(tag);
}
}
}
model -movie
public class Movie {
private String name, thumbnailUrl;
//private int year;
private String average_ratings,area,cuisine,address;
// private ArrayList<String> genre;
public Movie() {
}
public Movie(String name, String thumbnailUrl, String average_ratings,String area,String cuisine,String address
) {
this.name = name;
this.thumbnailUrl = thumbnailUrl;
//this.year = year;
this.average_ratings = average_ratings;
this.area=area;
this.cuisine=cuisine;
this.address=address;
//this.genre = genre;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getThumbnailUrl() {
return thumbnailUrl;
}
public void setThumbnailUrl(String thumbnailUrl) {
this.thumbnailUrl = thumbnailUrl;
}
/*public int getYear() {
return year;
}*/
/*public void setYear(int year) {
this.year = year;
}*/
public String getAverage_ratings() {
return average_ratings;
}
public void setAverage_ratings(String average_ratings) {
this.average_ratings = average_ratings;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCuisine() {
return cuisine;
}
public void setCuisine(String cuisine) {
this.cuisine = cuisine;
}
/*public ArrayList<String> getGenre() {
return genre;
}
public void setGenre(ArrayList<String> genre) {
this.genre = genre;
}
*/
}
LruBitmapcache
public class LruBitmapCache extends LruCache<String, Bitmap> implements
ImageCache {
public static int getDefaultLruCacheSize() {
final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
final int cacheSize = maxMemory / 8;
return cacheSize;
}
public LruBitmapCache() {
this(getDefaultLruCacheSize());
}
public LruBitmapCache(int sizeInKiloBytes) {
super(sizeInKiloBytes);
}
#Override
protected int sizeOf(String key, Bitmap value) {
return value.getRowBytes() * value.getHeight() / 1024;
}
#Override
public Bitmap getBitmap(String url) {
return get(url);
}
#Override
public void putBitmap(String url, Bitmap bitmap) {
put(url, bitmap);
}
}

Use <ViewFlipper> or <ViewPager> or use ImageSlider library.

I better suggest to use pager for the slideshow. For you reference: to use pager
For another thing we can even use timer:
public void makescroll() {
final Handler mHandler= new Handler();
// Create runnable for posting
final Runnable mUpdateResults = new Runnable() {
public void run() {
AnimateandSlideShow(); //display image of your arraylist
}
};
int delay = 5000; // delay for 1 sec.
int period = 5000; // repeat every 4 sec.
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
public void run() {
mHandler.post(mUpdateResults);
}
}, delay, period);
}

I would recommend RecyclerView over normal ListView for better performance and more customizable.
RecyclerView support horizontal lists but setting LinearLayoutManager as follows:
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false);
recyclerView.setLayoutManager(linearLayoutManager);

Related

How to fetch image in slide viewPager in android by using volley

API File
METHOD : POST
PARAMETER TO PASS:
INPUT:
OUTPUT:
{
"status": true,
"result": {
"sliderImg": [
{
"slidername": "slider 1",
"imagename": "http://192.168.1.80/slider/slider1.jpg"
},
{
"slidername": "slider 2",
"imagename": "http://192.168.1.80/slider/slider2.jpg"
},
],
"categoryImg": [
{
"cat_id": "1",
"cat_name": "Automotive Battery chargers",
"image_name": "http://192.168.1.80/cat/Automotive.png.png"
},
{
"cat_id": "2",
"cat_name": "CVCC Chargers",
"image_name": "http://192.168.1.80/cat/CVCC_Charger.png"
}
]
},
"message": "Get Dashboard successfully!"
}
Model Class
public class MyPojo
{
private String message;
private Result result;
private String status;
public String getMessage ()
{
return message;
}
public void setMessage (String message)
{
this.message = message;
}
public Result getResult ()
{
return result;
}
public void setResult (Result result)
{
this.result = result;
}
public String getStatus ()
{
return status;
}
public void setStatus (String status)
{
this.status = status;
}
#Override
public String toString()
{
return "ClassPojo [message = "+message+", result = "+result+", status = "+status+"]";
}
}
public class Result
{
private SliderImg[] sliderImg;
private CategoryImg[] categoryImg;
public SliderImg[] getSliderImg ()
{
return sliderImg;
}
public void setSliderImg (SliderImg[] sliderImg)
{
this.sliderImg = sliderImg;
}
public CategoryImg[] getCategoryImg ()
{
return categoryImg;
}
public void setCategoryImg (CategoryImg[] categoryImg)
{
this.categoryImg = categoryImg;
}
#Override
public String toString()
{
return "ClassPojo [sliderImg = "+sliderImg+", categoryImg = "+categoryImg+"]";
}
}
public class CategoryImg
{
private String cat_id;
private String image_name;
private String cat_name;
public String getCat_id ()
{
return cat_id;
}
public void setCat_id (String cat_id)
{
this.cat_id = cat_id;
}
public String getImage_name ()
{
return image_name;
}
public void setImage_name (String image_name)
{
this.image_name = image_name;
}
public String getCat_name ()
{
return cat_name;
}
public void setCat_name (String cat_name)
{
this.cat_name = cat_name;
}
#Override
public String toString()
{
return "ClassPojo [cat_id = "+cat_id+", image_name = "+image_name+", cat_name = "+cat_name+"]";
}
}
public class SliderImg
{
private String slidername;
private String imagename;
public String getSlidername ()
{
return slidername;
}
public void setSlidername (String slidername)
{
this.slidername = slidername;
}
public String getImagename ()
{
return imagename;
}
public void setImagename (String imagename)
{
this.imagename = imagename;
}
#Override
public String toString()
{
return "ClassPojo [slidername = "+slidername+", imagename = "+imagename+"]";
}
}
Adapter Class
public class ViewPagerAdapter extends PagerAdapter {
private Context context;
private LayoutInflater layoutInflater;
private List<SliderImg> sliderImg;
private ImageLoader imageLoader;
public ViewPagerAdapter(List sliderImg, Context context) {
this.sliderImg = sliderImg;
this.context = context;
}
#Override
public int getCount() {
return sliderImg.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override
public Object instantiateItem(ViewGroup container, final int position) {
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.dashboard_slide_layout, null);
SliderImg utils = sliderImg.get(position);
ImageView imageView = (ImageView) view.findViewById(R.id.dash_img_slider_view);
imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
imageLoader.get(utils.getImagename(), ImageLoader.getImageListener(imageView, R.mipmap.ic_launcher, android.R.drawable.ic_dialog_alert));
view.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (position == 0) {
Toast.makeText(context, "Slide 1 Clicked", Toast.LENGTH_SHORT).show();
} else if (position == 1) {
Toast.makeText(context, "Slide 2 Clicked", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(context, "Slide 3 Clicked", Toast.LENGTH_SHORT).show();
}
}
});
ViewPager vp = (ViewPager) container;
vp.addView(view, 0);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
ViewPager vp = (ViewPager) container;
View view = (View) object;
vp.removeView(view);
}
}
Custom Volly Request Class
public class CustomVolleyRequest {
private static CustomVolleyRequest customVolleyRequest;
private static Context context;
private RequestQueue requestQueue;
private ImageLoader imageLoader;
private CustomVolleyRequest(Context context){
this.context = context;
this.requestQueue = getRequestQueue();
imageLoader = new ImageLoader(requestQueue, new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap> cache = new LruCache<String, Bitmap>(20);
#Override
public Bitmap getBitmap(String url) {
return cache.get(url);
}
#Override
public void putBitmap(String url, Bitmap bitmap) {
cache.put(url, bitmap);
}
});
}
public static synchronized CustomVolleyRequest getInstance(Context context){
if(customVolleyRequest == null){
customVolleyRequest = new CustomVolleyRequest(context);
}
return customVolleyRequest;
}
public RequestQueue getRequestQueue(){
if(requestQueue == null){
Cache cache = new DiskBasedCache(context.getCacheDir(), 10 * 1024 * 1024);
Network network = new BasicNetwork(new HurlStack());
requestQueue = new RequestQueue(cache, network);
requestQueue.start();
}
return requestQueue;
}
public void addToRequestQueue(Request req) {
getRequestQueue().add(req);
}
public ImageLoader getImageLoader(){
return imageLoader;
}
}
MainActivity
ViewPager viewPager;
LinearLayout sliderDotspanel;
private int dotscount;
private ImageView[] dots;
RequestQueue rq;
List<SliderImg> sliderImg;
ViewPagerAdapter viewPagerAdapter;
String request_url = " http://192.168.1.80/appapi/dashboard";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rq = CustomVolleyRequest.getInstance(this).getRequestQueue();
sliderImg = new ArrayList<>();
viewPager = (ViewPager) findViewById(R.id.dash_pager_introduction);
sliderDotspanel = (LinearLayout) findViewById(R.id.dash_view_pager_count_dots);
sendRequest();
viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
#Override
public void onPageSelected(int position) {
for(int i = 0; i< dotscount; i++){
dots[i].setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.non_selected_item_dot));
}
dots[position].setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.selected_item_dot));
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
/*
* Initiatization of views
* */
initializingViews();
}
private void sendRequest() {
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.POST, request_url, null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for(int i = 0; i < response.length(); i++){
SliderImg sliderUtils = new SliderImg();
try {
JSONObject jsonObject = response.getJSONObject(i);
sliderUtils.setImagename(jsonObject.getString("imagename"));
} catch (JSONException e) {
e.printStackTrace();
}
sliderImg.add(sliderUtils);
}
viewPagerAdapter = new ViewPagerAdapter(sliderImg, MainActivity.this);
viewPager.setAdapter(viewPagerAdapter);
dotscount = viewPagerAdapter.getCount();
dots = new ImageView[dotscount];
for(int i = 0; i < dotscount; i++){
dots[i] = new ImageView(MainActivity.this);
dots[i].setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.non_selected_item_dot));
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
params.setMargins(8, 0, 8, 0);
sliderDotspanel.addView(dots[i], params);
}
dots[0].setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.selected_item_dot));
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
CustomVolleyRequest.getInstance(this).addToRequestQueue(jsonArrayRequest);
}
I am trying to fetch images in ViewPager Sliderby using volley but getting some problem. Above I have given the complete code. In MainActivity after setting viewPager slider calling the sendRequest method by using volley request. I dont know how to fetch the image in Slider through Volley. Please help me guys.

Use Picasso
implementation 'com.squareup.picasso:picasso:2.5.2'
the above Library add build.gradle
Picasso.with(getApplicationContext()).load(utils.getImagename()).placeholder(R.mipmap.ic_launcher).into(imageView );

How to Show GridView Image In Android Fragments Using Json (categories and subcategories)

Those are categories and subcategories. There can be subcategory or not.
JsonCode to be used is as below.
categoryId is what will change to call subcategories.
E.g. If you want to see subcategories of cars
Json Code
[{"Id":1,"TitleEN":"Cars","TitleAR":"سيارات","Photo":"http://souq.hardtask.co//Files/CategoryPhotos/ce686544-9f51-4213-b5db-7c015b788e8d.png","ProductCount":"3","HaveModel":"0","SubCategories":[{"Id":6,"TitleEN":"Cat6","TitleAR":"قسم6","Photo":"http://souq.hardtask.co//Files/CategoryPhotos/ce686544-9f51-4213-b5db-7c015b788e8d.png","ProductCount":"3","HaveModel":"0","SubCategories":[]}]},{"Id":2,"TitleEN":"Cat2","TitleAR":"قسم2","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"8","HaveModel":"0","SubCategories":[{"Id":13,"TitleEN":"cat1 -1 ","TitleAR":"cat1 - 1","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"8","HaveModel":"0","SubCategories":[]}]},{"Id":3,"TitleEN":"Cat3","TitleAR":"قسم3","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"2","HaveModel":"0","SubCategories":[]},{"Id":4,"TitleEN":"Cat4","TitleAR":"قسم4","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"1","HaveModel":"0","SubCategories":[]},{"Id":5,"TitleEN":"Cat5","TitleAR":"قسم5","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"0","HaveModel":"0","SubCategories":[]},{"Id":8,"TitleEN":"Cat8","TitleAR":"قسم8","Photo":"http://souq.hardtask.co//Images/no_image.png","ProductCount":"0","HaveModel":"0","SubCategories":[]},{"Id":9,"TitleEN":"Slide01","TitleAR":"Slide02","Photo":"http://souq.hardtask.co//Files/CategoryPhotos/2ba07cb2-49a0-47e4-aba6-ef10a916fb12.png","ProductCount":"0","HaveModel":"0","SubCategories":[]}]
ImageAdapter
public class ImageAdapter extends BaseAdapter {
private Context mContext;
public ImageAdapter(Context c){
mContext = c;
}
#Override
public int getCount(){
return images.size();
}
#Override
public Object getItem(int position){
return images.get(position);
}
public long getItemId(int position){
return 0;
}
public View getView(int position, View convertView, ViewGroup parent){
ImageView imageview;
if (convertView == null){
imageview = new ImageView(mContext);
imageview.setPadding(0, 0, 0, 0);
//imageview.setLayoutParams(new GridLayout.MarginLayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
imageview.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageview.setAdjustViewBounds(true);
} else {
imageview = (ImageView) convertView;
}
Picasso.with(mContext).load(images.get(position)).placeholder(R.mipmap.ic_launcher).into(imageview);
return imageview;
}
/*
Custom methods
*/
public void addItem(String url){
images.add(url);
}
public void clearItems() {
images.clear();
}
public ArrayList<String> images = new ArrayList<String>();
}
Movie Model
public class Movie implements Parcelable {
public String TitleEN;
public String TitleAR;
public String Photo;
public int id;
public Movie(){
}
protected Movie(Parcel in) {
TitleEN = in.readString();
TitleAR = in.readString();
Photo = in.readString();
id = in.readInt();
}
#Override
public int describeContents() {
return 0;
}
#Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeString(TitleEN);
dest.writeString(TitleAR);
dest.writeString(Photo);
dest.writeInt(id);
}
#SuppressWarnings("unused")
public static final Parcelable.Creator<Movie> CREATOR = new Parcelable.Creator<Movie>() {
#Override
public Movie createFromParcel(Parcel in) {
return new Movie(in);
}
#Override
public Movie[] newArray(int size) {
return new Movie[size];
}
};
}
Fragament_main
public class Fragament_main extends Fragment {
public View mainFragmentView;
public String LOG_TAG = "ShowcaseFragment";
public ArrayList<Movie> movies = new ArrayList<Movie>();
private RequestQueue mRequestQueue;
public ImageAdapter imageAdapter;
public static Fragament_main instance;
GridView gridview;
public boolean isDualPane = false;
// static to preserve sorting over orientation changes (activity restart)
public static String sortOrder = "popularity.desc", moreParams = "";
public static boolean setting_cached = false;
public int gridPos = -1;
public Fragament_main() {
// Required empty public constructor
instance = this;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mainFragmentView = inflater.inflate(R.layout.fragment_main, container, false);
mRequestQueue = Volley.newRequestQueue(getContext());
// setup adapters
imageAdapter = new ImageAdapter(getContext());
gridview = (GridView) mainFragmentView.findViewById(R.id.gridView);
gridview.setAdapter(imageAdapter);
//updateUI(setting_cached);
//gridview.setOnItemClickListener(new GridClickListener());
// manage grid col count wrt Orientation
if (this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE)
setGridColCount(3);
else
setGridColCount(2);
return mainFragmentView;
}
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
}
#Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("GRIDVIEW_POSITION", gridview.getFirstVisiblePosition());
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null)
gridPos = savedInstanceState.getInt("GRIDVIEW_POSITION");
}
#Override
public void onDestroyView() {
super.onDestroyView();
mRequestQueue.cancelAll(new RequestQueue.RequestFilter() {
#Override
public boolean apply(Request<?> request) {
return true;
}
});
}
/*class GridClickListener implements AdapterView.OnItemClickListener {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
if (isDualPane){
android.support.v4.app.FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
DetailActivityFragment detailActivityFragment = DetailActivityFragment.newInstance(movies.get(position));
ft.replace(R.id.detailContainer, detailActivityFragment);
ft.commit();
} else {
Intent intent = new Intent(getContext(), DetailActivity.class);
intent.putExtra(Intent.EXTRA_TEXT, (Parcelable) movies.get(position));
startActivity(intent);
}
}
}*/
/* public void updateUI(boolean cached){
movies.clear();
imageAdapter.clearItems();
setting_cached = cached;
if (!cached)
getMovies(sortOrder, moreParams);
else
getFavorites();
}
*/
public void getMovies(String sortOrder, String moreParams){
String url = "http://souq.hardtask.co/app/app.asmx/GetCategories?categoryId=0&countryId=1";
JsonObjectRequest req = new JsonObjectRequest(url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
JSONArray items = response.getJSONArray("results");
JSONObject movieObj;
for (int i=0; i<items.length(); i++){
movieObj = items.getJSONObject(i);
Movie movie = new Movie();
movie.id = movieObj.getInt("id");
movie.TitleEN = movieObj.getString("original_title");
movie.TitleAR = movieObj.getString("overview");
movie.Photo = "http://souq.hardtask.co/app/app.asmx/GetCategories?categoryId=0&countryId=1" + movieObj.getString("poster_path");
movies.add(movie);
// Add image to adapter
imageAdapter.addItem(movie.Photo);
}
} catch (JSONException e){
e.printStackTrace();
}
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
gridview.setAdapter(imageAdapter);
if (gridPos > -1)
gridview.setSelection(gridPos);
gridPos = -1;
}
});
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d(LOG_TAG, "Error in JSON Parsing");
}
});
mRequestQueue.add(req);
}
/* public void getFavorites(){
movies.addAll((new MoviesDB()).getFavoriteMovies(getContext().getContentResolver()));
for (Movie movie : movies){
imageAdapter.addItem(movie.Photo);
}
gridview.setAdapter(imageAdapter);
if (gridPos > -1)
gridview.setSelection(gridPos);
gridPos = -1;
}*/
public void updateFavoritesGrid(){
if (setting_cached) {
int p = gridview.getLastVisiblePosition();
///updateUI(true);
gridview.smoothScrollToPosition(p);
}
}
public void setGridColCount(int n){
((GridView) mainFragmentView.findViewById(R.id.gridView)).setNumColumns(n);
}
}
I don't know how to add Json data into GridView.
Could you help me?

Go through this example to view images in grid,
Convert your jsonArray into an ArrayList by using,
ArrayList<Cars> carsList = new Gson().fromJson(jsonArrayYouHave.toString(),new TypeToken<List<Cars>>() {
}.getType());
Pass this Array to your Adapter.
Use this POJO,
public class Cars {
private String TitleAR;
private String HaveModel;
private String TitleEN;
private String Id;
private ArrayList<SubCategories> SubCategories;
private String Photo;
private String ProductCount;
//Todo please add getter/setters for class Cars variables here
public class SubCategories {
private String TitleAR;
private String HaveModel;
private String TitleEN;
private String Id;
private ArrayList<String> SubCategories;
private String Photo;
private String ProductCount;
//Todo please add getter/setters for class SubCategories variables here
}
I'll suggest to use Retrofit as it'll provide you parsed arraylist which is converted into Response POJO you have provided. You can find many examples for Retrofit.

Step 1
Add the following dependencies in your app level gradle file.Dependencies are for retrofit, gsonConvertor butterknife and glide.
implementation 'com.squareup.retrofit2:retrofit:2.1.0'
implementation 'com.google.code.gson:gson:2.6.2'
implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
implementation('com.squareup.retrofit2:retrofit:2.1.0') {
// exclude Retrofit’s OkHttp dependency module and define your own module import
exclude module: 'okhttp'
}
implementation 'com.google.code.gson:gson:2.6.2'
implementation 'com.squareup.retrofit2:converter-gson:2.1.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.4.1'
implementation 'com.squareup.okhttp3:okhttp:3.4.1'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
implementation "com.jakewharton:butterknife:$BUTTER_KNIFE_VERSION"
annotationProcessor "com.jakewharton:butterknife-compiler:$BUTTER_KNIFE_VERSION"
implementation 'com.github.bumptech.glide:glide:4.8.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
Step 2 Create a class by name ApiClient and paste the following code in this class
public class ApiClient {
private static Retrofit retrofit = null;
public static Retrofit getRetrofit() {
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
OkHttpClient client = new OkHttpClient.Builder().addInterceptor(interceptor).build();
retrofit = new Retrofit.Builder()
.baseUrl("http://souq.hardtask.co")
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
return retrofit;
}
}
Step 3 Create a new Interface class by name APIInterface and paste the following code in this class
#GET("/app/app.asmx/GetCategories")
Call<List<Product>> getProducts(#QueryMap Map<String, String> params);
Step 4 Create POJO classes according to json response. We have two classes Products and their subcategory.So I am creating first class by name Product
public class Product {
#SerializedName("Id")
#Expose
private Integer id;
#SerializedName("TitleEN")
#Expose
private String titleEN;
#SerializedName("TitleAR")
#Expose
private String titleAR;
#SerializedName("Photo")
#Expose
private String photo;
#SerializedName("ProductCount")
#Expose
private String productCount;
#SerializedName("HaveModel")
#Expose
private String haveModel;
#SerializedName("SubCategories")
#Expose
private List<SubCategory> subCategories = null;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitleEN() {
return titleEN;
}
public void setTitleEN(String titleEN) {
this.titleEN = titleEN;
}
public String getTitleAR() {
return titleAR;
}
public void setTitleAR(String titleAR) {
this.titleAR = titleAR;
}
public String getPhoto() {
return photo;
}
public void setPhoto(String photo) {
this.photo = photo;
}
public String getProductCount() {
return productCount;
}
public void setProductCount(String productCount) {
this.productCount = productCount;
}
public String getHaveModel() {
return haveModel;
}
public void setHaveModel(String haveModel) {
this.haveModel = haveModel;
}
public List<SubCategory> getSubCategories() {
return subCategories;
}
public void setSubCategories(List<SubCategory> subCategories) {
this.subCategories = subCategories;
}
}
And SubCategory
public class SubCategory {
#SerializedName("Id")
#Expose
private Integer id;
#SerializedName("TitleEN")
#Expose
private String titleEN;
#SerializedName("TitleAR")
#Expose
private String titleAR;
#SerializedName("Photo")
#Expose
private String photo;
#SerializedName("ProductCount")
#Expose
private String productCount;
#SerializedName("HaveModel")
#Expose
private String haveModel;
#SerializedName("SubCategories")
#Expose
private List<Object> subCategories = null;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitleEN() {
return titleEN;
}
public void setTitleEN(String titleEN) {
this.titleEN = titleEN;
}
public String getTitleAR() {
return titleAR;
}
public void setTitleAR(String titleAR) {
this.titleAR = titleAR;
}
public String getPhoto() {
return photo;
}
public void setPhoto(String photo) {
this.photo = photo;
}
public String getProductCount() {
return productCount;
}
public void setProductCount(String productCount) {
this.productCount = productCount;
}
public String getHaveModel() {
return haveModel;
}
public void setHaveModel(String haveModel) {
this.haveModel = haveModel;
}
public List<Object> getSubCategories() {
return subCategories;
}
public void setSubCategories(List<Object> subCategories) {
this.subCategories = subCategories;
}
}
Step 5 now we need a view for recyclerview holder(in your case gridview layout). For that we need to create a new layout file inside layout folder. you can name it li_product_view
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:layout_width="200dp"
android:layout_height="200dp">
<ImageView
android:id="#+id/ImageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#mipmap/ic_launcher" />
<TextView
android:id="#+id/tv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#id/ImageView"
android:layout_alignTop="#id/ImageView"
android:layout_alignRight="#id/ImageView"
android:layout_alignBottom="#id/ImageView"
android:text="#string/app_name"
android:gravity="bottom|right" />
</RelativeLayout>
</RelativeLayout>
Step 6 Now we need itemHolder to hold the view for that purpose we will create a new class by name ProductsItemHolderand will have the following code
public class ProductsItemHolder extends RecyclerView.ViewHolder {
#BindView(R.id.ImageView)
ImageView imageView;
#BindView(R.id.tv_title)
TextView textView;
public ProductsItemHolder(#NonNull View itemView) {
super(itemView);
ButterKnife.bind(this,itemView);
}
public void bindData(Product datum, int position, int size) {
Glide.with(itemView)
.asBitmap()
.load(datum.getPhoto())
.into(imageView);
textView.setText(datum.getTitleAR());
}
}
Step 7 Now we need adapter which contains the data to present inside recyclerview. Create a new class by name ProductsAdapter and paste the following code inside this class
public class ProductsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private List<Product> mList;
#NonNull
#Override
public RecyclerView.ViewHolder onCreateViewHolder(#NonNull ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.li_product_view, viewGroup, false);
return new ProductsItemHolder(view);
}
#Override
public void onBindViewHolder(#NonNull RecyclerView.ViewHolder viewHolder, int position) {
int size= mList.size();
((ProductsItemHolder) viewHolder).bindData(mList.get(position), position,size);
}
#Override
public int getItemCount() {
return mList.size();
}
public void setData(List<Product> userLists) {
this.mList = userLists;
notifyDataSetChanged();
}
}
Step 8 now inside the activity or fragment we need to get response from json and pass this response to recyclerview.
public class MainActivity extends AppCompatActivity {
APIInterface apiInterfacePages;
RecyclerView recyclerView;
List<MultipleResource.Datum> datumList= new ArrayList<>();
ProgressDialog dialog;
ProductsAdapter productsAdapter;
private List<Product> dataArrayList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
apiInterfacePages= PageApiClient.getRetrofit().create(APIInterface.class);
recyclerView= findViewById(R.id.recyclerView);
productsAdapter= new ProductsAdapter();
StaggeredGridLayoutManager staggeredGridLayoutManager = new StaggeredGridLayoutManager(2, LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(staggeredGridLayoutManager);
getData();
}
private void getData() {
dataArrayList = new ArrayList<>();
Map<String, String> params = new HashMap<String, String>();
params.put("categoryId", "0");
params.put("countryId", "1");
Call<List<Product>> call= apiInterfacePages.getProducts(params);
call.enqueue(new Callback<List<Product>>() {
#Override
public void onResponse(Call<List<Product>> call, Response<List<Product>> response) {
dataArrayList = response.body();
productsAdapter.setData(dataArrayList);
recyclerView.setAdapter(productsAdapter);
}
#Override
public void onFailure(Call<List<Product>> call, Throwable t) {
Log.i("Call response",t.getMessage());
}
});
}
}

How to fetch images on ViewPager from server

I want to implement one app for image showing where images will come from server side and there will be maximum 4 images suppose that there are only one or two image on server then the pager will shown extra page or slider like this image.
public class BlankActivity extends FragmentActivity implements View.OnClickListener{
public static final String KEY_PIC = "pic";
public static final String KEY_PIC1 = "pic1";
public static final String KEY_PIC2 = "pic2";
public static final String KEY_PIC3 = "pic3";
public static final String JSON_ARRAY = "result";
String url1="https://www.maangal.com/photos/large_";
public String pic0="";
public String pic1="";
public String pic2="";
public String pic3="";
public String p0="";
public String p1="";
public String p2="";
public String p3="";
private ArrayList<String> ImagesArray = new ArrayList<>();
CustomTextView context;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_blank);
mPager = (ViewPager) findViewById(R.id.pager);
getData();
for slider call init function.
private void init( String p0,String p1,String p2,String p3) {
this.p0 = p0;
this.p1 = p1;
this.p2 = p2;
this.p3 = p3;
String[] IMAGES={p0,p1,p2,p3};
for(int i=0;i<IMAGES.length;i++) {
ImagesArray.add(IMAGES[i]);
if (p0.equalsIgnoreCase("https://www.maangal.com/photos/large_"))
{ Log.e("pic**********", url1 + IMAGES[i]);
mPager.setVisibility(View.GONE);
}
else Log.e("pic_______________", url1 + IMAGES[i]);
}
mPager = (ViewPager) findViewById(R.id.pager);
mPager.setAdapter(new SlidingImage_Adapter(BlankActivity.this,ImagesArray));
CirclePageIndicator indicator = (CirclePageIndicator) findViewById(R.id.indicator);
indicator.setViewPager(mPager);
final float density = getResources().getDisplayMetrics().density;
//Set circle indicator radius
indicator.setRadius(5 * density);
NUM_PAGES = IMAGES.length;
indicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
currentPage = position;
}
#Override
public void onPageScrolled(int pos, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int pos) {
}
});
}
getData function where I used Volley response to fetch the images from server
private void getData() {
tv21.setText(getIntent().getExtras().getString("id"));
id = tv21.getText().toString().trim();
Bundle extras = getIntent().getExtras();
if (extras != null) {
id = extras.getString("ID");
strGender = extras.getString("gender");
} else {
// handle case
}
String detailsURL ="https://www.maangal.com/maangal_mobile/details2.php?id="+id+"&gender="+strGender+"&curr_user_id="+current_Id;
StringRequest stringRequest = new StringRequest(Request.Method.POST,detailsURL, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
showJSON(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(BlankActivity.this,error.getMessage().toString(),Toast.LENGTH_LONG).show();
}
});
RequestQueue requestQueue = Volley.newRequestQueue(BlankActivity.this);
requestQueue.add(stringRequest);
}
private void showJSON(String response){
try {
JSONObject jsonObject = new JSONObject(response);
JSONArray result = jsonObject.getJSONArray(Config.JSON_ARRAY);
JSONObject userData = result.getJSONObject(0);
pic0 = userData.getString(KEY_PIC);
pic1 = userData.getString(KEY_PIC1);
pic2 = userData.getString(KEY_PIC2);
pic3 = userData.getString(KEY_PIC3);
init(url1+pic0,url1+pic1,url1+pic2,url1+pic3);
}
SlidingImage_Adapter pager adapter
public class SlidingImage_Adapter extends PagerAdapter {
private ArrayList<String> IMAGES;
private LayoutInflater layoutInflater;
private Context context;
ProgressBar progressBar;
private ImageLoader imageLoader;
SessionManager session;
public String str_gender;
public SlidingImage_Adapter(Context context, ArrayList<String> IMAGES) {
this.context = context;
this.IMAGES=IMAGES;
for(int i=0;i<IMAGES.size();i++)
layoutInflater = LayoutInflater.from(context);
}
#Override
public Object instantiateItem(ViewGroup view, int position) {
layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View item_view = layoutInflater.inflate(R.layout.screen_slide_fragment, view, false);
ImageView imageView = (ImageView) item_view.findViewById(R.id.image);
progressBar=(ProgressBar)item_view.findViewById(R.id.progressBar);
// Session class instance
session = new SessionManager(context);
// get user data from session
HashMap<String, String> user = session.getUserDetails();
str_gender = user.get(SessionManager.KEY_GENDER);
if(str_gender.equalsIgnoreCase("Female")){
Picasso.with(context)
.load(IMAGES.get(position))
.error(R.drawable.girl)
.placeholder(R.drawable.girl)
.fit()
.into(imageView);
view.addView(item_view);
}
else{
Picasso.with(context)
.load(IMAGES.get(position))
.error(R.drawable.boy)
.placeholder(R.drawable.boy)
.into(imageView);
view.addView(item_view);
}
return item_view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
#Override
public int getCount() {
return IMAGES.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view.equals(object);
}
#Override
public void restoreState(Parcelable state, ClassLoader loader) {
}
#Override
public Parcelable saveState(){
return null;
}
}

You need to check if other URLs are blank then you don't need to add into Array of Image. Change your code with below code and check.
String[] IMAGES={p0,p1,p2,p3};
for(int i=0;i<IMAGES.length;i++) {
if(!IMAGES[i].isEmpty()) {
ImagesArray.add(IMAGES[i]);
}
if (p0.equalsIgnoreCase("https://www.maangal.com/photos/large_"))
{
Log.e("pic**********", url1 + IMAGES[i]);
mPager.setVisibility(View.GONE);
}
}

I have done it, if there is images then the array will ImagesArray.add(url1 + IMAGES[i]); and if there is no images nothing will add on arrayList
String[] IMAGES = {p0, p1, p2, p3};
for (int i = 0; i < IMAGES.length; i++) {
if (IMAGES[i].equalsIgnoreCase("") || IMAGES[i].equalsIgnoreCase("nophoto.jpg") || IMAGES[i].equalsIgnoreCase("https://www.maangal.com/photos/large_")) {
Log.e("piccc-----------", IMAGES[i]);
} else {
ImagesArray.add(url1 + IMAGES[i]);
Log.e("else", url1 + IMAGES[i]);
}
}

I want to display data from Json in recyclerview in Android [closed]

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I want display Review text and its Rating in another activity.
Here is my AddReview class
public class AddReview extends AppCompatActivity implements ServerRequests.AddReviewreponse {
private Button submit;
EditText addReview;
RatingBar ratingBar;
Toolbar toolbar;
ServerRequests serverRequests;
JSONParser jsonParser;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_review);
jsonParser = new JSONParser();
serverRequests = new ServerRequests(getApplicationContext());
serverRequests.setAddReviewreponse(this);
addReview=(EditText)findViewById(R.id.reviewBox);
ratingBar=(RatingBar) findViewById(R.id.ratingBar);
submit=(Button)findViewById(R.id.submit);
toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar_top);
setSupportActionBar(toolbar);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle("Add Review");
// toolbar.setNavigationIcon(R.drawable.back_30);
/* toolbar.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onBackPressed();
}
});*/
submit.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
try {
String ReviewTxt = addReview.getText().toString();
float rating = ratingBar.getRating();
JSONObject obj = jsonParser.makeAddReviewJson(1,1,ReviewTxt,rating);
Log.e("final Json", obj.toString());
serverRequests.addReview(obj);
} catch (Exception e) {
}
/* Reviews.displayName.setText(RegisterActivity.name.getText().toString());
Reviews.displayReview.setText("Your Review : "+addReview.getText().toString());
Reviews.displayStars.setRating(ratingBar.getRating());*/
/* Reviews.displayStars.setText("Your Rating : " + ratingBar.getRating());
String currentDateTimeString = DateFormat.getDateTimeInstance().format(new Date());
Reviews.displayDate.setText(currentDateTimeString);*/
AlertDialog alertDialog = new AlertDialog.Builder(AddReview.this).create();
alertDialog.setTitle("Review Submitted!");
alertDialog.setMessage("Thanks for your valueable review!");
alertDialog.setIcon(R.drawable.star_48);
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Write your code here to execute after dialog closed
Toast.makeText(getApplicationContext(), "You clicked on OK", Toast.LENGTH_SHORT).show();
// startActivity(new Intent(getApplicationContext(), Reviews.class));
}
});
// Showing Alert Message
alertDialog.show();
}
});
}
#Override
public void onAddReviewReposne(JSONObject object) {
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()==android.R.id.home)
{
finish();
}
return super.onOptionsItemSelected(item);
}
}
This is the Review class where I want to display the review and its ratings
public class Reviews extends AppCompatActivity implements ServerRequests.GetReviewResponse {
public static TextView displayReview, displayDate, displayName;
public static RatingBar displayStars;
Button addReviewBtn;
android.support.v7.widget.Toolbar toolbar;
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
private static String LOG_TAG = "CardViewActivity";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_reviews);
mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view1);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
// mAdapter = new ReviewAdapter(getDataSet(jsonObject));
mRecyclerView.setAdapter(mAdapter);
toolbar = (android.support.v7.widget.Toolbar) findViewById(R.id.toolbar_top1);
setSupportActionBar(toolbar);
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle("Reviews");
/*displayReview = (TextView) findViewById(R.id.review);
displayStars = (RatingBar) findViewById(R.id.rating);
displayDate = (TextView)findViewById(R.id.displayDate);
displayName = (TextView)findViewById(R.id.displayName);*/
addReviewBtn = (Button)findViewById(R.id.addReviewBtn);
addReviewBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
startActivity(new Intent(getApplicationContext(), AddReview.class));
}
});
ServerRequests serverRequests=new ServerRequests(getApplicationContext());
serverRequests.setReviewResponse(this);
serverRequests.getReviews("one");
}
private ArrayList<Review> getDataSet(JSONArray array) {
ArrayList results = new ArrayList<Review>();
for (int i = 0; i < array.length(); i++) {
try {
JSONObject object = array.getJSONObject(i);
Review obj = new Review(object.getInt("reviewId"),object.getInt("userId"),object.getString("Name"),object.getString("Review"),object.getLong("rating"));
results.add(i,obj);
}
catch (Exception e){
e.printStackTrace();
}
}
return results;
}
#Override
public void onGetReviewResponse(JSONArray jsonObject) {
mAdapter = new ReviewAdapter(getDataSet(jsonObject));
mRecyclerView.setAdapter(mAdapter);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId()==android.R.id.home)
{
finish();
}
return super.onOptionsItemSelected(item);
}
}
This is the ReviewAdapter
public class ReviewAdapter extends RecyclerView.Adapter<ReviewAdapter.DataObjectHolder> {
private static String LOG_TAG = "MyRecyclerViewAdapter";
private ArrayList<Review> mDataset;
private static MyClickListener myClickListener;
public static class DataObjectHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public static TextView name,review;
public static RatingBar rating;
public DataObjectHolder(View itemView) {
super(itemView);
name = (TextView) itemView.findViewById(R.id.name);
review = (TextView) itemView.findViewById(R.id.review);
rating = (RatingBar) itemView.findViewById(R.id.rating);
Log.i(LOG_TAG, "Adding Listener");
itemView.setOnClickListener(this);
}
#Override
public void onClick(View v) {
myClickListener.onItemClick(getAdapterPosition(), v);
}
}
public void setOnItemClickListener(MyClickListener myClickListener) {
this.myClickListener = myClickListener;
}
public ReviewAdapter(ArrayList<Review> myDataset) {
mDataset = myDataset;
}
#Override
public DataObjectHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_view_review, parent, false);
DataObjectHolder dataObjectHolder = new DataObjectHolder(view);
return dataObjectHolder;
}
#Override
public void onBindViewHolder(DataObjectHolder holder, int position) {
holder.name.setText(mDataset.get(position).getName());
holder.review.setText(mDataset.get(position).getReview());
holder.rating.setRating(mDataset.get(position).getRating());
}
public void addItem(Review dataObj, int index) {
mDataset.add(index, dataObj);
notifyItemInserted(index);
}
public void deleteItem(int index) {
mDataset.remove(index);
notifyItemRemoved(index);
}
#Override
public int getItemCount() {
return mDataset.size();
}
public interface MyClickListener {
public void onItemClick(int position, View v);
}
}
This is the Pojo class of Review
public class Review {
private String name,review;
private float rating;
private int reviewId,userId;
public Review (int ReviewId, int UserId, String Name, String Review, float Rating){
reviewId = ReviewId;
userId = UserId;
name = Name;
review = Review;
rating = Rating;
}
public int getReviewId() {
return reviewId;
}
public void setReviewId(int reviewId) {
this.reviewId = reviewId;
}
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getReview() {
return review;
}
public void setReview(String review) {
this.review = review;
}
public float getRating() {
return rating;
}
public void setRating(float rating) {
this.rating = rating;
}
}
This is the ServerRequests for add and get Review
//------------For add review------------------------------
public void setAddReviewreponse(AddReviewreponse addreviewreponse) {
this.addreviewreponse = addreviewreponse;
}
private AddReviewreponse addreviewreponse;
public interface AddReviewreponse {
void onAddReviewReposne(JSONObject object);
}
public void addReview(JSONObject jsonObject) {
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, Services.ADD_REVIEW, jsonObject,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
Log.e("Json response", "" + response);
boolean b = response.getBoolean("success");
if (addreviewreponse != null) {
addreviewreponse.onAddReviewReposne(response);
}
} catch (Exception e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Error ", "" + error);
}
}
);
queue.add(jsonObjectRequest);
}
//------------For get review------------------------------
public void setReviewResponse(GetReviewResponse reviewResponse) {
this.getReviewResponse = reviewResponse;
}
public GetReviewResponse getReviewResponse;
public interface GetReviewResponse {
void onGetReviewResponse(JSONArray jsonObject);
}
public void getReviews(final String id) {
StringRequest request = new StringRequest(Request.Method.GET, Services.GET_REVIEW,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
try {
JSONArray array = new JSONArray(response);
Log.e("Server response", response);
if (array.length() > 0) {
if (getReviewResponse != null) {
getReviewResponse.onGetReviewResponse(array);
}
} else {
Log.e("Error is occured", "asd");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
//send error repsonse back to user
Log.e("Error: ", error.getMessage());
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> params = new HashMap<>();
params.put("courseId", id);
return params;
}
};
queue.add(request);
}
This is JSONParser class for AddReview
//--------For Add review---------------------------------
public JSONObject makeAddReviewJson(int studentID, int courseID, String reviewTxt, float rating) throws JSONException {
JSONObject object = new JSONObject();
object.put("studentId", studentID);
object.put("courseId", courseID);
object.put("review", reviewTxt);
object.put("ratings", rating);
return object;
}
This is the JSON response I am getting after posting the Review
E/final Json: {"studentId":1,"courseId":1,"review":"Hellooooo","ratings":3}
E/Json response: {"success":true,"msg":"Your review has been added successfully","data":{"reviewsId":18}}

private ArrayList<Review> getDataSet(JSONArray array) {
ArrayList results = new ArrayList<Review>();
for (int i = 0; i < array.length(); i++) {
try {
JSONObject object = array.getJSONObject(i);
Review obj = new Review(object.getInt("studentId"),object.getInt("courseId"),object.getString("Review"),object.getLong("rating"));
results.add(i,obj);
}
catch (Exception e){
e.printStackTrace();
}
}
return results;
}
try to change your getDataSet function with above code and check with debug point if you get any problem in some line. feel free to ask further will help you
EDIT:
You need to change your Pojo class of Review also. Because in JSON response you are not getting userId and reviewId. Hope you understand

Android MySql Volley RecyclerView NetworkImage

I saw this tutorial : https://www.simplifiedcoding.net/android-custom-listview-with-images-using-recyclerview-and-volley/
But, I am getting some problem. Here's my code :
Config.java
public class Config {
//URL of my API
public static final String DATA_URL = "http://192.168.10.7/connection.php";
//Tags for my JSON
public static final String TAG_IMAGE_URL = "image";
public static final String TAG_NAME = "name";
public static final String TAG_PRICE = "price";
}
connection.php
<?php
$host="localhost";
$username="root";
$password="";
$db_name="datatest";
$con=mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
$sql = "select * from news";
$result = mysql_query($sql);
$json = array();
if(mysql_num_rows($result)){
while($row=mysql_fetch_assoc($result)){
$json['news'][]=$row;
}
}
mysql_close($con);
echo json_encode($json);
?>
MainActivity.java
public class MainActivity extends AppCompatActivity {
private List<TheMain> listTheMain;
//Creating Views
private RecyclerView recyclerView;
private RecyclerView.LayoutManager layoutManager;
private RecyclerView.Adapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Initializing Views
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
listTheMain = new ArrayList<>();
//Calling method to get data
getData();
}
//This method will get data from the web api
private void getData(){
//Showing a progress dialog
final ProgressDialog loading = ProgressDialog.show(this,"Loading Data", "Please wait...",false,false);
//Creating a json array request
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Config.DATA_URL,
new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
//Dismissing progress dialog
loading.dismiss();
//calling method to parse json array
parseData(response);
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
//Creating request queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
//Adding request to the queue
requestQueue.add(jsonArrayRequest);
}
//This method will parse json data
private void parseData(JSONArray array){
for(int i = 0; i<array.length(); i++) {
TheMain themaina = new TheMain();
JSONObject json = null;
try {
json = array.getJSONObject(i);
themaina.setImageUrl(json.getString(Config.TAG_IMAGE_URL));
themaina.setName(json.getString(Config.TAG_NAME));
themaina.setPrice(json.getString(Config.TAG_PRICE));
} catch (JSONException e) {
e.printStackTrace();
}
listTheMain.add(themaina);
}
//Finally initializing our adapter
adapter = new CardAdapter(listTheMain, this);
//Adding adapter to recyclerview
recyclerView.setAdapter(adapter);
}
}
CardAdapter.java
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
private ImageLoader imageLoader;
private Context context;
List<TheMain> themain;
public CardAdapter(List<TheMain>themain, Context context){
super();
this.themain = themain;
this.context = context;
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.news_list, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
TheMain themaina = themain.get(position);
imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
imageLoader.get(themaina.getImageUrl(), ImageLoader.getImageListener(holder.imageView, R.mipmap.ic_launcher, android.R.drawable.ic_dialog_alert));
holder.imageView.setImageUrl(themaina.getImageUrl(), imageLoader);
holder.textViewName.setText(themaina.getName());
holder.textViewPrice.setText(themaina.getPrice());
}
#Override
public int getItemCount() {
return themain.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
public NetworkImageView imageView;
public TextView textViewName;
public TextView textViewPrice;
public ViewHolder(View itemView) {
super(itemView);
imageView = (NetworkImageView) itemView.findViewById(R.id.newsOne);
textViewName = (TextView) itemView.findViewById(R.id.title);
textViewPrice= (TextView) itemView.findViewById(R.id.price);
}
}
}
CustomVolleyRequest.java
public class CustomVolleyRequest {
private static CustomVolleyRequest customVolleyRequest;
private static Context context;
private RequestQueue requestQueue;
private ImageLoader imageLoader;
private CustomVolleyRequest(Context context) {
this.context = context;
this.requestQueue = getRequestQueue();
imageLoader = new ImageLoader(requestQueue,
new ImageLoader.ImageCache() {
private final LruCache<String, Bitmap>
cache = new LruCache<String, Bitmap>(20);
#Override
public Bitmap getBitmap(String url) {
return cache.get(url);
}
#Override
public void putBitmap(String url, Bitmap bitmap) {
cache.put(url, bitmap);
}
});
}
public static synchronized CustomVolleyRequest getInstance(Context context) {
if (customVolleyRequest == null) {
customVolleyRequest = new CustomVolleyRequest(context);
}
return customVolleyRequest;
}
public RequestQueue getRequestQueue() {
if (requestQueue == null) {
Cache cache = new DiskBasedCache(context.getCacheDir(), 10 * 1024 * 1024);
Network network = new BasicNetwork(new HurlStack());
requestQueue = new RequestQueue(cache, network);
requestQueue.start();
}
return requestQueue;
}
public ImageLoader getImageLoader() {
return imageLoader;
}
}
TheMain.java
public class TheMain {
//Data Variables
private String imageUrl;
private String name;
private String price;
//Getters and Setters
public String getImageUrl() {
return imageUrl;
}
public void setImageUrl(String imageUrl) {
this.imageUrl = imageUrl;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
}
I'm not getting any result. The ProgressDialog just starts. Nothing then.
Thanks in advance.

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

i want to slide images ,images are coming through json - android

Use <ViewFlipper> or <ViewPager> or use ImageSlider library.

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Android MySql Volley RecyclerView NetworkImage

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