I am currently using searchView to filter results on a RecyclerView. The problem is when the fragment is initialized, the list won't appear not until I click on the search icon on the toolbar and type some texts on it. I've tried modifying the codes. Take a look specifically at the adapter and holder classes, if you'll try to exchange my current codes to these:
public MembershipActivationAdapter(Context context, List<Member> members){
this.context = context;
this.mMembers = members;
}
and
@Override
public MembershipActivationViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
final View itemView = LayoutInflater.from(context).inflate(R.layout.member_activation_content, viewGroup, false);
}
,it will show the list upon calling the fragment however if I'll type something on the SearchView, it seems to function only as a one way filter. It will filter names but whenever I'll try to remove a character or a text on the searchview, it won't show the list back. Please help me with this. These are my codes:
Adapter & ViewHolder class:
public class MembershipActivationAdapter extends RecyclerView.Adapter<MembershipActivationAdapter.MembershipActivationViewHolder> {
private final List<Member> mMembers;
private final LayoutInflater inflater;
//private final Context context;
public MembershipActivationAdapter(Context context, List<Member> members){
inflater = LayoutInflater.from(context);
mMembers = new ArrayList<>(members);
//this.context = context;
//this.mMembers = members;
}
@Override
public int getItemCount() {
return mMembers.size();
}
@Override
public void onBindViewHolder(MembershipActivationViewHolder holder, final int position) {
final Member m = mMembers.get(position);
holder.name.setText(m.getName());
holder.email.setText(m.getEmail());
if(m.getStatus().equals("Active")){
holder.status.setText(Html.fromHtml("<font color='#00CD00'>" + m.getStatus() + "</font>"));
}else{
holder.status.setText(Html.fromHtml("<font color='#ff0000'>" + m.getStatus() + "</font>"));
}
}
@Override
public MembershipActivationViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
final View itemView = inflater.inflate(R.layout.member_activation_content, viewGroup, false);
return new MembershipActivationViewHolder(itemView);
//final View itemView = LayoutInflater.from(context).inflate(R.layout.member_activation_content, viewGroup, false);
}
public static class MembershipActivationViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public final TextView name;
public final TextView email;
public final TextView status;
public MembershipActivationViewHolder(View v) {
super(v);
v.setOnClickListener(this);
name = (TextView) v.findViewById(R.id.member_name);
email = (TextView) v.findViewById(R.id.member_email);
status = (TextView) v.findViewById(R.id.member_status);
}
}
public List<Member> getMemberList() {
return mMembers;
}
public void animateTo(List<Member> members) {
applyAndAnimateRemovals(members);
applyAndAnimateAdditions(members);
applyAndAnimateMovedItems(members);
}
private void applyAndAnimateRemovals(List<Member> newMembers) {
for (int i = mMembers.size() - 1; i >= 0; i--) {
final Member member = mMembers.get(i);
if (!newMembers.contains(member)) {
removeItem(i);
}
}
}
private void applyAndAnimateAdditions(List<Member> newMembers) {
for (int i = 0, count = newMembers.size(); i < count; i++) {
final Member member = newMembers.get(i);
if (!mMembers.contains(member)) {
addItem(i, member);
}
}
}
private void applyAndAnimateMovedItems(List<Member> newMembers) {
for (int toPosition = newMembers.size() - 1; toPosition >= 0; toPosition--) {
final Member member = newMembers.get(toPosition);
final int fromPosition = mMembers.indexOf(member);
if (fromPosition >= 0 && fromPosition != toPosition) {
moveItem(fromPosition, toPosition);
}
}
}
public Member removeItem(int position) {
final Member member = mMembers.remove(position);
notifyItemRemoved(position);
return member;
}
public void addItem(int position, Member member) {
mMembers.add(position, member);
notifyItemInserted(position);
}
public void moveItem(int fromPosition, int toPosition) {
final Member member = mMembers.remove(fromPosition);
mMembers.add(toPosition, member);
notifyItemMoved(fromPosition, toPosition);
}
}
Fragment Class:
public class MembershipActivationFragment extends Fragment implements SearchView.OnQueryTextListener{
private static String url = "http://www.xxxxx.org/portal/webservices/get_members.php";
private List<Member> memberList;
private RecyclerView recyclerView;
private MembershipActivationAdapter adapter;
private String pid;
private ProgressDialog progressDialog;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.member_activation, container, false);
recyclerView = (RecyclerView) rootView.findViewById(R.id.members_recycler_view);
setHasOptionsMenu(true);
memberList = new ArrayList<>();
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
progressDialog = new ProgressDialog(getActivity());
progressDialog.setMessage("Loading...");
progressDialog.show();
populate();
return rootView;
}
public void populate(){
JsonArrayRequest request = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray jsonArray) {
hidePDialog();
String name, email, status;
Member member;
for(int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject object = jsonArray.getJSONObject(i);
name = object.getString("firstname") + " " + object.getString("lastname");
email = object.getString("email");
if(Integer.parseInt(object.getString("activated"))==1){
status = "Active";
}else{
status = "Not Active";
}
member = new Member(name, email, status);
memberList.add(member);
} catch (Exception e) {
}
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener(){
@Override
public void onErrorResponse(VolleyError volleyError) {
volleyError.printStackTrace();
}
});
AppController.getInstance().addToRequestQueue(request);
adapter = new MembershipActivationAdapter(getActivity(), memberList);
recyclerView.setAdapter(adapter);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.search_menu, menu);
final MenuItem item = menu.findItem(R.id.action_search);
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
searchView.setOnQueryTextListener(this);
}
@Override
public boolean onQueryTextChange(String query) {
final List<Member> filteredMemberList = filter(memberList, query);
adapter.animateTo(filteredMemberList);
recyclerView.scrollToPosition(0);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
private List<Member> filter(List<Member> members, String query) {
query = query.toLowerCase();
final List<Member> filteredModelList = new ArrayList<>();
for (Member member : members) {
final String text = member.getName().toLowerCase();
if (text.contains(query)) {
filteredModelList.add(member);
}
}
return filteredModelList;
}
private void hidePDialog() {
if (progressDialog != null) {
progressDialog.dismiss();
progressDialog = null;
}
}
}
RecyclerView container xml:
<?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="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/members_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"/>
</LinearLayout>
Content class:
<?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="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:padding="5dip">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Name here"
android:textStyle="bold"
android:id="@+id/member_name"
android:layout_centerVertical="true"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="email@gmail.com"
android:id="@+id/member_email"
android:layout_below="@+id/member_name"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="email@gmail.com"
android:id="@+id/member_status"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"/>
</RelativeLayout>
</LinearLayout>
Model Class:
public class Member {
private String name;
private String email;
private String status;
public Member(String name, String email, String status) {
this.name = name;
this.email = email;
this.status = status;
}
public Member(String name){
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
}
Atlast! I was able to find the resolution for this. Kudos to the developer himself, Xaver Kapeller!
public void populate(){
JsonArrayRequest request = new JsonArrayRequest(url,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray jsonArray) {
// hidePDialog();
String email, status;
// Member member;
for(int i = 0; i < jsonArray.length(); i++) {
try {
JSONObject object = jsonArray.getJSONObject(i);
final String name = object.getString("firstname") + " " + object.getString("lastname");
email = object.getString("email");
if(Integer.parseInt(object.getString("activated"))==1){
status = "Active";
}else{
status = "Not Active";
}
mModels.add(new ExampleModel(name));
// member = new Member(name, email, status);
} catch (Exception e) {
}
}
mAdapter = new ExampleAdapter(getActivity(), mModels);
mRecyclerView.setAdapter(mAdapter);
}
}, new Response.ErrorListener(){
@Override
public void onErrorResponse(VolleyError volleyError) {
volleyError.printStackTrace();
}
});
AppController.getInstance().addToRequestQueue(request);
}
Just tranfer these two lines of code inside onResponse() and everything will work perfectly fine:
mAdapter = new ExampleAdapter(getActivity(), mModels);
mRecyclerView.setAdapter(mAdapter);