I have a Fragment that, clicked on a RadioButton , a route is calculated, after this route calculation, a ListView is displayed with the results.
By clicking on the other radiobutton option, the routes are calculated again and the new results are shown.
Problem: When uploading these new results, the old ones are not removed from the screen.
How can I remove them and put only the new results?
Fragment:
public class ResultsFragment extends Fragment implements ListView.OnItemClickListener {
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
public static final String RESULTS_JSON = "results_json";
public static final String GENERIC_ROUTE_ID = "generic_route_id";
public static final String IS_RIDER = "is_rider";
private String mResultsJson;
private String mResultsJson2;
private int mGenericRouteId;
private urMainOnActionPerformed mListener;
private RouteResultsAdapter mAdapter;
private ArrayList<Route> mResults;
@BindView(R.id.results_label)
TextView mResultsLabel;
@BindView(R.id.date_container)
RelativeLayout mDateContainer;
@BindView(R.id.pick_date_search)
TextView mDate2;
@BindView(android.R.id.list)
public ListView mListView;
private boolean isRider;
private Calendar selectedDate = Calendar.getInstance();
private DatePickerDialog mDatePickerDialog;
public ResultsFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param resultsJson Parameter 1.
* @return A new instance of fragment ResultsFragment.
*/
public static ResultsFragment newInstance(String resultsJson, int genericRouteId
, boolean isRider) {
ResultsFragment fragment = new ResultsFragment();
Bundle args = new Bundle();
args.putString(RESULTS_JSON, resultsJson);
args.putInt(GENERIC_ROUTE_ID, genericRouteId);
args.putBoolean(IS_RIDER, isRider);
fragment.setArguments(args);
return fragment;
}
public void setResults(String json) {
mResultsJson = json;
ArrayList<Route> routes = Route.buildRouteArrayFromJsonString(mResultsJson);
routes = Route.buildRouteArrayFromJsonString(mResultsJson);
routes.clear();
mResults = Route.orderRouteArrayByHavingCar(routes);
mDate2.setText(TimeUtils.getDayOfWeekFromDate(getContext(), SearchRideType.getInstance().getDate()));
if (mResults != null) {
mAdapter = new RouteResultsAdapter(mResults, getContext(), isRider);
mListView.setAdapter(mAdapter);
mListView.setOnItemClickListener(this);
mResultsLabel.setText(mResults.size() + " " + getString(R.string.results));
}
}
public void setGenericRouteId(int id) {
mGenericRouteId = id;
}
public void setIsRider(boolean isRider) {
this.isRider = isRider;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mResultsJson = getArguments().getString(RESULTS_JSON);
mGenericRouteId = getArguments().getInt(GENERIC_ROUTE_ID);
isRider = getArguments().getBoolean(IS_RIDER);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_display_results, container, false);
ButterKnife.bind(this, view);
if (mResultsJson != null) {
setResults(mResultsJson);
}
mDateContainer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mDatePickerDialog = new DatePickerDialog(getContext(), R.style.MyDatePickerStyle, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar date = Calendar.getInstance();
date.set(year, monthOfYear, dayOfMonth);
if (!SearchRideType.getInstance().getDate().equals(date)) {
SearchRideType.getInstance().setDateTime(date.getTime());
mDate2.setText(TimeUtils.getDayOfWeekFromDate(getContext(), date.getTime()));
mListener.recalculateSuggestions();
}
}
}, SearchRideType.getInstance().getCalendar().get(Calendar.YEAR), SearchRideType.getInstance().getCalendar().get(Calendar.MONTH), SearchRideType.getInstance().getCalendar().get(Calendar.DAY_OF_MONTH));
mDatePickerDialog.show();
}
});
return view;
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
showItemAndAction(parent, view, position, id);
}
public void showItemAndAction(AdapterView<?> parent, View view, int position, long id) {
if (mListener != null) {
mListView.smoothScrollToPosition(position);
Route route = mResults.get(position);
if (!route.ride.isRideTimeValid()) {
Toast.makeText(
getActivity(), getString(R.string.ride_time_passed), Toast.LENGTH_SHORT).show();
} else if (SearchRideType.getInstance().isDriver() || route.getUser() != null && route.getUser().hasCar()) {
mListView.setSelection(position);
route.setGenericRouteId(mGenericRouteId);
// mListener.showAskRideFragment(route);
RelativeLayout mActionButton = (RelativeLayout) view.findViewById(R.id.action_button);
mActionButton.setVisibility(View.VISIBLE);
setActionButton(mActionButton, route);
} else if (isRider || route.getUser() != null && !route.getUser().hasCar()) {
mListView.setSelection(position);
route.setGenericRouteId(mGenericRouteId);
// mListener.showAskRideFragment(route);
RelativeLayout mActionButton = (RelativeLayout) view.findViewById(R.id.action_button);
mActionButton.setVisibility(View.VISIBLE);
setActionButton(mActionButton, route);
} else {
Toast.makeText(
getActivity(), getString(R.string.has_no_car), Toast.LENGTH_SHORT).show();
}
}
((RouteResultsAdapter)parent.getAdapter()).notifyDataSetChanged();
}
public void setActionButton(RelativeLayout actionButton, Route route) {
setActionButtonLayout(actionButton);
setActionButtonListener(actionButton, route);
}
public void setActionButtonLayout(RelativeLayout actionButtonLayout) {
if (actionButtonLayout != null) {
ImageView icon = (ImageView) actionButtonLayout.findViewById(R.id.icon_action_button);
TextView label = (TextView) actionButtonLayout.findViewById(R.id.action_button_label);
if (isRider) {
label.setText(getString(R.string.request_ride));
icon.setImageResource(R.drawable.ic_person_white);
} else {
label.setText(getString(R.string.offer_ride));
icon.setImageResource(R.drawable.ic_driver_white);
}
}
}
public void setActionButtonListener(RelativeLayout actionButton, final Route route) {
actionButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mListener.onAskOrOfferRideRequested(
route.ride,
isRider ? "ask" : "offer",
route.getGenericRouteId()
);
}
});
}
@OnClick(R.id.map_button)
public void onMapClick() {
mListener.showMap();
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof urMainOnActionPerformed) {
mListener = (urMainOnActionPerformed) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnConfirmRoutineFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public void requestLayoutForListView() {
if (mResults != null) {
mAdapter = new RouteResultsAdapter(mResults, getContext(), isRider);
mListView.setAdapter(mAdapter);
}
}
}
Adapter:
public class RouteResultsAdapter extends BaseAdapter {
ArrayList<Route> mData;
Context mContext;
private boolean isRider;
public RouteResultsAdapter(ArrayList<Route> routes, Context context, boolean isRider){
mData = routes;
mContext = context;
this.isRider = isRider;
}
@Override
public int getCount(){
return mData.size();
}
@Override
public long getItemId(int position){
return position;
}
@Override
public Route getItem(int position){
return mData.get(position);
}
@Override
public View getView(int position, View convertView, ViewGroup parent){
RouteResultViewHolder holder;
if(convertView == null){
holder = new RouteResultViewHolder();
convertView = ((LayoutInflater)
mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE))
.inflate(R.layout.fragment_display_results_item,null);
holder.username = (TextView)convertView.findViewById(R.id.username);
holder.companyPosition = (TextView)convertView.findViewById(R.id.company_position);
holder.profilePic = (ImageView)convertView.findViewById(R.id.profile_image);
holder.hour = (TextView)convertView.findViewById(R.id.hour);
holder.resultBackground = (RelativeLayout)convertView
.findViewById(R.id.result_background);
convertView.setTag(holder);
}else{
holder = (RouteResultViewHolder)convertView.getTag();
}
holder.fillHolder(getItem(position),mContext,isRider);
loadBitmapFromUser(getItem(position).getUser(),holder.profilePic);
return convertView;
}
public static class RouteResultViewHolder{
TextView username;
TextView companyPosition;
TextView hour;
ImageView profilePic;
RelativeLayout resultBackground;
public void fillHolder(Route item,Context context, boolean isRider){
if(item!=null){
User user = item.getUser();
if(user!=null){
username.setText(user.getName());
companyPosition.setText(user.getJob());
if(item.ride!=null){
hour.setText(item.ride.getStartTimeStampString());
}else{
hour.setVisibility(View.GONE);
}
if(isRider) {
if (user.hasCar() && item.ride.isRideTimeValid()) {
resultBackground.setBackgroundDrawable(
context.getResources().getDrawable(R.drawable.display_results_selector));
} else {
resultBackground.setBackgroundColor(context.getResources()
.getColor(R.color.grey));
}
}
}
}
}
}
public void loadBitmapFromUser(User user, final ImageView mProfileImage){
if(ConnectionUtils.isNetworkAvailable(mContext)){
Ion.with(mContext)
.load(user.getPhotoUrl())
.asBitmap()
.setCallback(new FutureCallback<Bitmap>() {
@Override
public void onCompleted(Exception e, Bitmap result) {
if (e != null) {
e.printStackTrace();
}
if(mProfileImage != null) {
mProfileImage.setImageBitmap(result);
}
}
});
}else{
ConnectionUtils.showConnetionError(mContext, 1);
}
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
}