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Commit 85fb5ea0 authored by Sajal Narang's avatar Sajal Narang Committed by GitHub
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Merge pull request #150 from maitreyaverma/master 

added infinite scrolling in placement blog
parents b406770c 50e22008
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Showing with 129 additions and 35 deletions
app/src/main/java/app/insti/adapter/PlacementBlogAdapter.java
View file @ 85fb5ea0
......@@ -2,9 +2,11 @@ package app.insti.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ProgressBar;
import android.widget.TextView;
import java.text.DateFormat;
......@@ -17,9 +19,19 @@ import java.util.Locale;
import app.insti.ItemClickListener;
import app.insti.R;
import app.insti.data.PlacementBlogPost;
import app.insti.fragment.PlacementBlogFragment;
import ru.noties.markwon.Markwon;
public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdapter.ViewHolder> {
public class PlacementBlogAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private final int VIEW_ITEM = 1;
private final int VIEW_PROG = 0;
public List<PlacementBlogPost> getPosts() {
return posts;
}
public void setPosts(List<PlacementBlogPost> posts) {
this.posts = posts;
}
private List<PlacementBlogPost> posts;
private Context context;
......@@ -31,7 +43,8 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if(viewType==VIEW_ITEM){
context = parent.getContext();
LayoutInflater inflater = LayoutInflater.from(context);
View postView = inflater.inflate(R.layout.blog_post_card, parent, false);
......@@ -45,9 +58,28 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
});
return postViewHolder;
}
else{
LayoutInflater inflater=LayoutInflater.from(context);
View loadView=inflater.inflate(R.layout.blog_load_item,parent,false);
final PlacementBlogAdapter.ViewHolder postViewHolder = new PlacementBlogAdapter.ViewHolder(loadView);
return new PlacementBlogAdapter.ProgressViewHolder(loadView);
}
}
@Override
public int getItemViewType(int position) {
Log.d("position", String.valueOf(position));
return posts.size()> position ? VIEW_ITEM : VIEW_PROG;
}
@Override
public int getItemCount() {
return PlacementBlogFragment.showLoader? (posts.size()+1):posts.size();
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
public void onBindViewHolder(RecyclerView.ViewHolder recycleholder, int position) {
if(recycleholder instanceof ViewHolder){
ViewHolder holder=(ViewHolder)recycleholder;
PlacementBlogPost post = posts.get(position);
Markwon.setMarkdown(holder.postTitle, post.getTitle());
......@@ -64,11 +96,11 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
Markwon.setMarkdown(holder.postContent, post.getContent());
}
@Override
public int getItemCount() {
return posts.size();
else{
((ProgressViewHolder)recycleholder).progressBar.setIndeterminate(true);
}
}
public class ViewHolder extends RecyclerView.ViewHolder {
private TextView postTitle;
......@@ -83,4 +115,12 @@ public class PlacementBlogAdapter extends RecyclerView.Adapter<PlacementBlogAdap
postContent = (TextView) itemView.findViewById(R.id.post_content);
}
}
public static class ProgressViewHolder extends RecyclerView.ViewHolder {
public ProgressBar progressBar;
public ProgressViewHolder(View v) {
super(v);
progressBar = (ProgressBar)v.findViewById(R.id.blog_load_item);
}
}
}
app/src/main/java/app/insti/api/RetrofitInterface.java
View file @ 85fb5ea0
......@@ -61,7 +61,7 @@ public interface RetrofitInterface {
Call<Void> updateUserEventStatus(@Header("Cookie") String sessionID, @Path("eventID") String eventID, @Query("status") int status);
@GET("placement-blog")
Call<List<PlacementBlogPost>> getPlacementBlogFeed(@Header("Cookie") String sessionID);
Call<List<PlacementBlogPost>> getPlacementBlogFeed(@Header("Cookie") String sessionID, @Query("from") int from,@Query("num") int num);
@GET("training-blog")
Call<List<TrainingBlogPost>> getTrainingBlogFeed(@Header("Cookie") String sessionID);
......
app/src/main/java/app/insti/fragment/PlacementBlogFragment.java
View file @ 85fb5ea0
......@@ -2,6 +2,7 @@ package app.insti.fragment;
import android.app.Activity;
import android.app.LauncherActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
......@@ -11,10 +12,14 @@ import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.google.android.gms.common.util.ListUtils;
import java.util.ArrayList;
import java.util.List;
import app.insti.ActivityBuffer;
......@@ -39,6 +44,7 @@ public class PlacementBlogFragment extends BaseFragment {
private SwipeRefreshLayout feedSwipeRefreshLayout;
private AppDatabase appDatabase;
private boolean freshBlogDisplayed = false;
public static boolean showLoader=true;
public PlacementBlogFragment() {
......@@ -76,7 +82,7 @@ public class PlacementBlogFragment extends BaseFragment {
private void updatePlacementFeed() {
RetrofitInterface retrofitInterface = ServiceGenerator.createService(RetrofitInterface.class);
retrofitInterface.getPlacementBlogFeed("sessionid=" + getArguments().getString(Constants.SESSION_ID)).enqueue(new Callback<List<PlacementBlogPost>>() {
retrofitInterface.getPlacementBlogFeed("sessionid=" + getArguments().getString(Constants.SESSION_ID),0,20).enqueue(new Callback<List<PlacementBlogPost>>() {
@Override
public void onResponse(Call<List<PlacementBlogPost>> call, Response<List<PlacementBlogPost>> response) {
if (response.isSuccessful()) {
......@@ -115,6 +121,42 @@ public class PlacementBlogFragment extends BaseFragment {
placementFeedRecyclerView = getActivity().findViewById(R.id.placement_feed_recycler_view);
placementFeedRecyclerView.setAdapter(placementBlogAdapter);
placementFeedRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
placementFeedRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
// multiple calls should not be made
boolean loading=false;
@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
if(dy>0){
LinearLayoutManager layoutManager= (LinearLayoutManager) placementFeedRecyclerView.getLayoutManager();
if(((layoutManager.getChildCount()+layoutManager.findFirstVisibleItemPosition())>(layoutManager.getItemCount()-5))&&(!loading)){
loading=true;
View v=getActivity().findViewById(R.id.placement_feed_swipe_refresh_layout);
RetrofitInterface retrofitInterface = ServiceGenerator.createService(RetrofitInterface.class);
retrofitInterface.getPlacementBlogFeed("sessionid=" +getArguments().getString(Constants.SESSION_ID),layoutManager.getItemCount(),10).enqueue(new Callback<List<PlacementBlogPost>>() {
@Override
public void onResponse(Call<List<PlacementBlogPost>> call, Response<List<PlacementBlogPost>> response) {
loading=false;
List<PlacementBlogPost> blogPosts= (ArrayList<PlacementBlogPost>) placementBlogAdapter.getPosts();
blogPosts.addAll(response.body());
if(response.body().size()==0){
showLoader=false;
}
placementBlogAdapter.setPosts(blogPosts);
placementBlogAdapter.notifyDataSetChanged();
// new updateDatabase().execute(blogPosts);
}
@Override
public void onFailure(Call<List<PlacementBlogPost>> call, Throwable t) {
loading=false;
}
});
}
}
}
});
} catch (NullPointerException e) {
e.printStackTrace();
}
......
app/src/main/res/layout/blog_load_item.xml 0 → 100644
View file @ 85fb5ea0
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="wrap_content">
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:indeterminate="true"
android:id="@+id/blog_load_item"
android:layout_gravity="center_horizontal"
android:layout_margin="@dimen/activity_vertical_margin"/>
</LinearLayout>
\ No newline at end of file
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