RecyclerView mit RecyclerView mit Start ActivityOnresult

Ich habe eine Recycler-Ansicht (A), die eine weitere Recycleransicht enthält (B). Wenn ich im recycleview (A) auf das Plus-Symbol klicke, öffnet sich eine neue Aktivität mit einem Recyclerview (C). Lange drücken und wenige Elemente auswählen und auf Fertig klicken. Dies muss eine Recycler-Ansicht (B) auf recyclerview (A) aktualisieren, auf die ich das Plus-Symbol geklickt habe.RecyclerView mit RecyclerView mit Start ActivityOnresult

Stattdessen werden alle Artikel von Recyclerview (A), die RecyclerView (B) enthält, aktualisiert.

private void displayUpcomingEvents(View view) { 
    upcomingEventsArrayList = new ArrayList<>(); 
    upcomingEvents = new UpcomingEvents("Meet and greet", "Coffee Connect | ", "Phython", "21 - ", "Jun - ", "22", "Jun", "21 Jun 10 AM", "Washinton"); 
    upcomingEventsArrayList.add(upcomingEvents); 
    upcomingEvents = new UpcomingEvents("Meet and greet", "Coffee Connect | ", "Phython", "21 - ", "Jun - ", "22", "Jun", "21 Jun 10 AM", "Washinton"); 
    upcomingEventsArrayList.add(upcomingEvents); 
    upcomingEvents = new UpcomingEvents("Meet and greet", "Coffee Connect | ", "Phython", "21 - ", "Jun - ", "22", "Jun", "21 Jun 10 AM", "Washinton"); 
    upcomingEventsArrayList.add(upcomingEvents); 
    upcomingEventsAdapter = new RecyclerAdapterUpcomingEvents(getContext(), upcomingEventsArrayList); 

    recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view_upcoming_event); 

    RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getAppContext()); 
    recyclerView.setLayoutManager(mLayoutManager); 
    recyclerView.setHasFixedSize(true); 
    recyclerView.setAdapter(upcomingEventsAdapter); 

} 



class RecyclerAdapterUpcomingEvents extends RecyclerView.Adapter<RecyclerAdapterUpcomingEvents.MyViewHolder> { 

    private List<UpcomingEvents> upcomingEventsList; 
    private Context context; 
    private LayoutInflater inflater; 


    RecyclerAdapterUpcomingEvents(Context context, List<UpcomingEvents> upcomingEventsList) { 
     this.context = context; 
     this.upcomingEventsList = upcomingEventsList; 
     inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    @Override 
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 

     View rootView = inflater.inflate(R.layout.card_view_upcoming_event, parent, false); 
     return new RecyclerAdapterUpcomingEvents.MyViewHolder(rootView); 
    } 

    @Override 
    public void onBindViewHolder(MyViewHolder holder, int position) { 

     UpcomingEvents upcomingEvents = upcomingEventsList.get(position); 

     holder.eventUpcomingName.setText(upcomingEvents.getEventUpcomingName()); 
     holder.eventUpcomingType.setText(upcomingEvents.getEventUpcomingType()); 
     holder.eventUpcomingDate.setText(upcomingEvents.getEventUpcomingDateStart() + upcomingEvents.getEventUpcomingDateEnd()); 
     holder.eventUpcomingMonth.setText(upcomingEvents.getEventUpcomingMonthEnd() + upcomingEvents.getEventUpcomingMonthEnd()); 
     holder.eventUpcomingAlarmNotify.setText(upcomingEvents.getEventUpcomingAlarmNotify()); 
     holder.eventUpcomingPlace.setText(upcomingEvents.getEventUpcomingPlace()); 

     holder.eventUpcomingAddPeople.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       Activity origin = (Activity) context; 
       origin.startActivityForResult(new Intent(getAppContext(), ContactsActivity.class), CONTACT_CODE); 
      } 
     }); 


     holder.contactRecyclerView.setLayoutManager(new LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)); 
     contactAdapter = new ContactAdapter(getAppContext(), R.layout.card__contact_image, contactsList);`enter code here` 
     holder.contactRecyclerView.setAdapter(contactAdapter); 

    } 


    @Override 
    public int getItemCount() { 
     return upcomingEventsList.size(); 
    } 

    class MyViewHolder extends RecyclerView.ViewHolder { 

     private TextView eventUpcomingName, eventUpcomingType, eventUpcomingDate, eventUpcomingMonth, eventUpcomingAlarmNotify, eventUpcomingPlace, eventUpcomingYes, eventUpcomingInterested, eventUpcomingNo; 
     private ImageView eventUpcomingAddPeople, eventUpcomingmore; 
     private RecyclerView contactRecyclerView; 


     MyViewHolder(View itemView) { 
      super(itemView); 
      eventUpcomingName = (TextView) itemView.findViewById(R.id.event_name); 
      eventUpcomingType = (TextView) itemView.findViewById(R.id.event_type); 
      eventUpcomingDate = (TextView) itemView.findViewById(R.id.event_date); 
      eventUpcomingMonth = (TextView) itemView.findViewById(R.id.event_month); 

      eventUpcomingAlarmNotify = (TextView) itemView.findViewById(R.id.event_time_notify); 
      eventUpcomingPlace = (TextView) itemView.findViewById(R.id.event_place); 

      eventUpcomingYes = (TextView) itemView.findViewById(R.id.event_yes); 
      eventUpcomingInterested = (TextView) itemView.findViewById(R.id.event_interested); 
      eventUpcomingNo = (TextView) itemView.findViewById(R.id.event_no); 

      eventUpcomingmore = (ImageView) itemView.findViewById(R.id.event_more); 
      eventUpcomingAddPeople = (ImageView) itemView.findViewById(R.id.hex_one_event); 

      contactRecyclerView = (RecyclerView) itemView.findViewById(R.id.upcome_events_recycler); 

     } 
    } 
} 



@Override 
public void onReceived(int requestCode, int resultCode, Intent data) { 

    if (requestCode == CONTACT_CODE && resultCode == RESULT_OK && data != null) { 

     List<Contact> contactsLists = (ArrayList<Contact>) data.getSerializableExtra("contacts"); 
     contactsList.clear(); 
     contactsList.addAll(contactsLists); 

     contactAdapter.setContactList(contactsLists); 

     upcomingEventsAdapter = new RecyclerAdapterUpcomingEvents(getContext(), upcomingEventsArrayList); 
     RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getAppContext()); 
     recyclerView.setLayoutManager(mLayoutManager); 
     recyclerView.setHasFixedSize(true); 
     recyclerView.setAdapter(upcomingEventsAdapter); 
    } 
}

CardView

 <android.support.v7.widget.RecyclerView 
      android:id="@+id/upcome_events_recycler" 
      android:layout_width="match_parent" 
      android:layout_height="52dp" 
      android:layout_below="@id/event_place" 
      android:layout_marginBottom="8dp" 
      android:layout_marginEnd="52dp" 
      android:layout_marginStart="8dp" 
      android:layout_marginTop="8dp"> 

     </android.support.v7.widget.RecyclerView> 

     <ImageView 
      android:id="@+id/hex_one_event" 
      android:layout_width="48dp" 
      android:layout_height="48dp" 
      android:layout_alignParentEnd="true" 
      android:layout_below="@id/event_place" 
      android:layout_margin="8dp" 
      android:src="@drawable/hex_src_plus" />

Quelle

2017-07-04 Ashith VL

Ich habe nicht gut Ihr Problem verstehen, aber ich denke, Sie sollten die ausgewählten Positionen in einem Array setzen und aktualisieren nur diese positions.Hope es hilft. – Rockers23

danke ... du hast Recht @ Rockers23, aber ich bekomme, wie es geht –

Ich muss wissen, wenn Sie ein oder mehrere Elemente bearbeiten, die Recyclerview B zur gleichen Zeit enthält? Ich brauche auch einen Blick auf Ihre lange Presse-Methode und wie Sie Ihre recyclerView A aktualisieren. – Rockers23

Zuerst Code dieses unten ändern:

holder.eventUpcomingAddPeople.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Activity origin = (Activity) context; 
      Intent i = new Intent(getAppContext(), ContactsActivity.class); 
      i.putExtra("selectedPosition", position); 
      origin.startActivityForResult(i, CONTACT_CODE); 
     } 
    }); 

@Override 
public void onReceived(int requestCode, int resultCode, Intent data) { 

if (requestCode == CONTACT_CODE && resultCode == RESULT_OK && data != null) { 
    int result = data.getIntExtra("selectedPosition","put a default value in case of null"); 
    List<Contact> contactsLists = (ArrayList<Contact>) data.getSerializableExtra("contacts"); 
    contactsList.clear(); 
    contactsList.addAll(contactsLists); 

    contactAdapter.setContactList(contactsLists); 
    upcomingEventsAdapter.notifyItemChanged(result); 
} 
}

auf der zweiten Aktivität, die Sie so etwas haben sollten, wenn Sie auf Fertig klicken :

int param = getIntent().getIntExtra("selectedPosition"); 
Intent resultIntent = new Intent(); 
resultIntent.putExtra("contacts", Your selected contacts); 
resultIntent.putExtra("selectedPosition", param); 

setResult(RESULT_OK, resultIntent); 
finish();

Hoffnung ist es klar und hilfreich :)

Quelle

2017-07-05 10:49:39 Rockers23

Ich habe Aktivität -> FragmentA -> FragmentB .. ..when ich startActivityForResult in FragmentB ... wie die Rückgabedaten behandeln –

RecyclerView A ist in Fragment A und Fragment B enthält RecyclerView C? – Rockers23

RecyclerView mit RecyclerView mit Start ActivityOnresult

Antwort

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