Получение обновления RecyclerView.Adapter

Question

В следующем действии, когда я выполняю действие проверки на Switch, он фильтрует список (originallist).

Перед тем, как проверить/щелкнуть переключатель, я фильтрую список RecyclerView с fragment, адаптер обновляется, и список фильтруется после транзакции фрагмента.

Но тогда, когда я проверяю переключатель, операция фильтра выполняется в исходном списке, а не в списке фильтров, который я должен получить после транзакции фрагмента.

Как получить обновленный RecyclerView.Adapter в действии.

public class TransactionsActivity extends AppCompatActivity implements ActivityCommunicator { 

    SearchView searchtrans; 
    SearchView searchView; 
    private RecyclerView recyclerView; 
    private Button monthButton, filterButton; 
    public static RecentTransAdapter mAdapter; 
    private Switch aSwitch; 
    boolean filtered; 
    public FragmentCommunicator fragmentCommunicator; 
    String dateSelected; 

    @Override 
    protected void onCreate(@Nullable Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_transactions); 
/* 
     Slide slide = new Slide(Gravity.TOP); 
     slide.addTarget(R.id.trans); 
     getWindow().setEnterTransition(slide); 
*/ 
     searchtrans = (SearchView) findViewById(R.id.searchTrans); 

     searchtrans.setOnQueryTextListener(new SearchView.OnQueryTextListener() { 
      @Override 
      public boolean onQueryTextSubmit(String query) { 
       mAdapter.getFilter().filter(query); 
       return false; 
      } 

      @Override 
      public boolean onQueryTextChange(String newText) { 
       mAdapter.getFilter().filter(newText); 
       return true; 
      } 
     }); 
     recyclerView = (RecyclerView) findViewById(R.id.trans); 
     List<Transaction> newList = new ArrayList<Transaction>(); 
     this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); 

     newList = Transaction.transactionList; 

     monthButton = (Button) findViewById(R.id.monthButton); 
     // filterButton = (Button) findViewById(R.id.filterButton); 
     aSwitch = (Switch) findViewById(R.id.switch1); 

     String currentMonth = ""; 

     Calendar cal = Calendar.getInstance(); 
     /* Date date = new Date(); 
     cal.setTime(date); 
*/ 
     currentMonth = new SimpleDateFormat("MMMM").format(cal.getTime()); 

     monthButton.setText(currentMonth); 

     monthButton.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

       FragmentManager fm = getSupportFragmentManager(); 
       // FragmentTransaction ft = fm.beginTransaction(); 
       MyFrag dFragment = new MyFrag(); 
       // Show DialogFragment 
       dFragment.show(fm, "Dialog Fragment"); 
//    fragmentCommunicator.passDataToFragment(mAdapter); 
      } 
     }); 

     mAdapter = new RecentTransAdapter(newList, this); 
     RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext()); 
     recyclerView.setLayoutManager(mLayoutManager); 
     recyclerView.setItemAnimator(new DefaultItemAnimator()); 
     recyclerView.setAdapter(mAdapter); 

     aSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 
      @Override 
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 

       Log.d("list is ",String.valueOf(mAdapter.getItemCount())); 

       if (!isChecked) { 
        Log.d("notchecked","yo"); 
        mAdapter.getFilter().filter(""); 

       } else { 
         mAdapter.getFilter().filter("credit"); 
       } 
       recyclerView.setAdapter(mAdapter); 
      } 
     }); 
     // RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext()); 
     // recyclerView.setLayoutManager(mLayoutManager); 
     //recyclerView.setItemAnimator(new DefaultItemAnimator()); 

    } 

    @Override 
    public void passDataToActivity(String someValue, RecentTransAdapter recentTransAdapter) { 
     dateSelected = someValue; 
     //dateSelected = "someTest"; 
     monthButton.setText(dateSelected); 
     mAdapter = recentTransAdapter; 
    } 

} 

адаптер:

public class RecentTransAdapter extends RecyclerView.Adapter<RecentTransAdapter.MyViewHolder> implements Filterable{ 

    private LayoutInflater inflater; 
    List<Transaction> transactionList ; 
    List<Transaction> filteredTransList; 


    public RecentTransAdapter(List<Transaction> transactionList,Context context){ 
     this.transactionList = transactionList; 
     filteredTransList = transactionList; 
     inflater = LayoutInflater.from(context); 

    } 
    @Override 
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     View itemView = inflater.inflate(R.layout.transaction, parent, false); 
     MyViewHolder myViewHolder = new MyViewHolder(itemView); 
     return myViewHolder; 
    } 

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

     Transaction transaction = filteredTransList.get(position); 

     holder.tamt.setText(transaction.amount); 
     if(transaction.type.toLowerCase().contains("credit")) 
     { 
      holder.tamt.setTextColor(Color.parseColor("#009f00")); 
      holder.tamt.setText("(+) "+transaction.amount); 
     } 
     else 
     { 
      holder.tamt.setTextColor(Color.parseColor("#9f0000")); 
      holder.tamt.setText("(-) "+transaction.amount); 
     } 
     Date date = null; 
     String formattedTime=null; 
     try { 
      SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss"); 
      SimpleDateFormat output = new SimpleDateFormat("dd MMM yy"); 
      Date d = sdf.parse(transaction.date); 
      formattedTime = output.format(d); 
     } catch (ParseException e) { 
      e.printStackTrace(); 
     } 
     holder.tdate.setText(formattedTime.toString()); 
     holder.tdesc.setText(transaction.desc); 

     if(holder.tdesc.getText().toString().contains("BOB E-Banking")) 
     { 
      //holder.imageView.setImageBitmap(getBitmapFromURL("")); 
      holder.imageView.setImageResource(R.drawable.bob); 
     } 
     else if(holder.tdesc.getText().toString().toLowerCase().contains("paytm")) 
     { 
      Glide.with(getApplicationContext()) 
        .load("http://www.irctcstationcode.com/wp-content/uploads/2015/11/Paytm-Wallet.jpg") 
        .asBitmap() 
        .into(holder.imageView); 

     } 
    } 

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

    @Override 
    public Filter getFilter() { 
     return new MyFilter(this,transactionList); 
    } 

    public void setList(List<Transaction> list) { 
     this.filteredTransList = list; 
    } 

    public class MyViewHolder extends RecyclerView.ViewHolder{ 
     public TextView tdate , tdesc , tamt ; 
     public ImageView imageView ; 
     public MyViewHolder(View view) { 
      super(view); 

      imageView = (ImageView)view.findViewById(R.id.timg); 

      tdate = (TextView)view.findViewById(R.id.tdate); 

      tdesc = (TextView)view.findViewById(R.id.tdesc); 

      tamt = (TextView)view.findViewById(R.id.tamt); 
     } 

    } 

Фильтр:

class MyFilter extends Filter { 

    private final RecentTransAdapter adapter; 

    private final List<Transaction> originalList; 

    private final List<Transaction> filteredList; 

    public MyFilter(RecentTransAdapter adapter, List<Transaction> originalList) { 
     super(); 
     this.adapter = adapter; 
     this.originalList = originalList; 
     this.filteredList = new ArrayList<>(); 
    } 

    @Override 
    protected FilterResults performFiltering(CharSequence constraint) { 
     filteredList.clear(); 
     final FilterResults results = new FilterResults(); 

     Log.d("constrianss iss", constraint.toString()); 

     String constring = constraint.toString(); 

     if (constraint.length() == 0) { 

      filteredList.addAll(originalList); 
      Log.d("filteredLen", String.valueOf(filteredList.size())); 
     } else if (constring.equals("credit")) { 
      final String filterPattern = constraint.toString().toLowerCase().trim(); 

      for (final Transaction tr : originalList) { 

       if (filterPattern.equals("credit") && tr.type.toLowerCase().contains("credit")) { 
        Log.d("FilterSucc", tr.desc + " : " + tr.date); 
        filteredList.add(tr); 
       } 
      } 
     } else if (constraint.toString().trim().toLowerCase().matches("[a-z]{3}[-][0-9]{2}")) { 
      StringBuilder sb = new StringBuilder(""); 
      sb.append("11-").append(constring); 

      for (final Transaction tr : originalList) { 

       Date date = null; 
       try { 
        date = new SimpleDateFormat("dd-MMM-yy").parse(sb.toString()); 
        Log.d("dubug2", date.toString()); 
       } catch (ParseException e) { 
        e.printStackTrace(); 
       } 
       Calendar cal = Calendar.getInstance(); 
       cal.setTime(date); 

       int month = cal.get(Calendar.MONTH) + 1; 
       int year = cal.get(Calendar.YEAR); 
       String monthStr = null; 
       monthStr = String.valueOf(month); 
       if (String.valueOf(month).length() == 1) { 
        monthStr = "0" + month; 
       } 

       if (tr.date.trim().startsWith("" + year + "-" + monthStr)) { 
        filteredList.add(tr); 
        // TransactionsActivity.mAdapter.setList(filteredList); 
       } 


      } 
     } else { 
      for (final Transaction tr : originalList) { 
       if (tr.desc.toLowerCase().contains(constraint.toString())) { 
        filteredList.add(tr); 
       } 
      } 
     } 
     results.values = filteredList; 
     results.count = filteredList.size(); 
     return results; 
    } 

    @Override 
    protected void publishResults(CharSequence constraint, FilterResults results) { 
     // adapter.filteredTransList.clear(); 
     adapter.setList(filteredList); 
     adapter.notifyDataSetChanged(); 
     TransactionsActivity.mAdapter=adapter; 
    } 
} 

Answer 1

Сменный адаптер после проверки, как:

recyclerView.swapAdapter(new RecentTransAdapter(filteredList), false);