Liegt bei Arraylist Filterung und Adaptereinstellung für RecyclerView

Question

Hey Ich versuche, meinen ArrayList mit SwitchCompat und zeigen gefilterten Liste in einem RecyclerView und ich bin mit diesem Code zu filtern:

cancelled = (SwitchCompat) inc.findViewById(R.id.cancelledSwitch); 
    cancelledByAdmin = (SwitchCompat) inc.findViewById(R.id.cancelledByAdminSwitch); 
    reserved = (SwitchCompat) inc.findViewById(R.id.reservedSwitch); 
    pending = (SwitchCompat) inc.findViewById(R.id.pendingSwitch); 
    deprecated = (SwitchCompat) inc.findViewById(R.id.deprecatedSwitch); 
    deprecated.setOnCheckedChangeListener(filterswitch); 
    cancelled.setOnCheckedChangeListener(filterswitch); 
    pending.setOnCheckedChangeListener(filterswitch); 
    cancelledByAdmin.setOnCheckedChangeListener(filterswitch); 
    reserved.setOnCheckedChangeListener(filterswitch); 

    CompoundButton.OnCheckedChangeListener filterswitch = new CompoundButton.OnCheckedChangeListener() { 
    @Override 
    public void onCheckedChanged(CompoundButton compoundButton, boolean b) { 
     filter(); 
    } 
}; 

public void filter() { 
    ArrayList<ReservedTimesModel> filtered = new ArrayList<>(); 
    for (ReservedTimesModel reservedTimesModel : arrayList) { 
     switch (reservedTimesModel.res_status) { 
      case "CanceledByAdmin": 
       if (cancelledByAdmin.isChecked()) { 
        filtered.add(reservedTimesModel); 
       } 
       break; 
      case "Canceled": 
       if (cancelled.isChecked()) { 
        filtered.add(reservedTimesModel); 
       } 
       break; 
      case "Pending": 
       if (pending.isChecked()) { 
        filtered.add(reservedTimesModel); 
       } 
       break; 
      case "Deprecated": 
       if (pending.isChecked()) { 
        filtered.add(reservedTimesModel); 
       } 
       break; 
      default: 
       if (reserved.isChecked()) { 
        filtered.add(reservedTimesModel); 
       } 
     } 
    } 
    recyclerView.setAdapter(new ReservedTimesAdapter(filtered, ReservedTimesActivity.this)); 
} 

ReservedTimesAdapter:

public class ReservedTimesAdapter extends RecyclerView.Adapter<ReservedTimesAdapter.ViewHolder> { 
ArrayList<ReservedTimesModel> arrayList; 
Context context; 
StyleSpan bold = new StyleSpan(android.graphics.Typeface.BOLD); 

public ReservedTimesAdapter(ArrayList<ReservedTimesModel> arrayList, Activity context) { 
    this.arrayList = arrayList; 
    this.context = context; 
} 

public static class ViewHolder extends RecyclerView.ViewHolder { 
    AppCompatButton cancel; 
    TextView node_titletxt, timetxt, datetxt, statustxt, doctxt; 
    LinearLayout linearLayout; 

    public ViewHolder(View v) { 
     super(v); 
     cancel = (AppCompatButton) v.findViewById(R.id.cancel_reserve); 
     statustxt = (TextView) v.findViewById(R.id.reserved_status); 
     datetxt = (TextView) v.findViewById(R.id.reserved_date); 
     timetxt = (TextView) v.findViewById(R.id.reserved_time); 
     node_titletxt = (TextView) v.findViewById(R.id.node_title); 
     doctxt = (TextView) v.findViewById(R.id.reserved_doctor); 
     linearLayout = (LinearLayout) v.findViewById(R.id.linearlayout); 
    } 
} 

@Override 
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.reserved_times_list_layout, parent, false)); 
} 

@Override 
public void onBindViewHolder(ViewHolder holder, final int position) { 
    if (arrayList.get(position).cancelable) { 
     if (arrayList.get(position).res_status.equals("Reserved")) { 
      holder.cancel.setVisibility(View.VISIBLE); 
      holder.cancel.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
        click(position); 
       } 
      }); 
     } else { 
      holder.cancel.setVisibility(View.GONE); 
     } 
    }else{ 
     holder.cancel.setVisibility(View.GONE); 
    } 
    SpannableStringBuilder date = new SpannableStringBuilder("تاریخ: " + convert_num(arrayList.get(position).year + "/" + arrayList.get(position).month + "/" + arrayList.get(position).day)); 
    date.setSpan(bold,0,6, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 
    holder.datetxt.setText(date); 
    String title; 
    if (arrayList.get(position).typename.equals("Hospital")) { 
     title = "بیمارستان"; 
    } else { 
     title = "کلینیک"; 
    } 

    SpannableStringBuilder doc = new SpannableStringBuilder("دکتر: " + arrayList.get(position).doc); 
    doc.setSpan(bold, 0, 5, Spannable.SPAN_INCLUSIVE_INCLUSIVE); 
    holder.doctxt.setText(doc); 

    SpannableStringBuilder node_title = new SpannableStringBuilder(title + " " + arrayList.get(position).node_title); 
    node_title.setSpan(bold, 0, title.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE); 
    holder.node_titletxt.setText(node_title); 

    SpannableStringBuilder time = new SpannableStringBuilder("زمان: " + convert_num(arrayList.get(position).ft_to_time.substring(0, 5) + " - " + arrayList.get(position).ft_of_time.substring(0, 5))); 
    time.setSpan(bold, 0, 5, Spannable.SPAN_INCLUSIVE_INCLUSIVE); 
    holder.timetxt.setText(time); 

    String status; 
    Drawable drawable = context.getResources().getDrawable(R.drawable.textview_shape); 
    switch (arrayList.get(position).res_status) { 
     case "CanceledByAdmin": 
      status = context.getString(R.string.cancelled_by_admin); 
      drawable.setColorFilter(0xFFFC635D, PorterDuff.Mode.SRC); 
      break; 
     case "Canceled": 
      status = context.getString(R.string.cancelled); 
      drawable.setColorFilter(0xFFEE903D, PorterDuff.Mode.SRC); 
      break; 
     case "Pending": 
      status = context.getString(R.string.pending); 
      drawable.setColorFilter(0xFFd25913, PorterDuff.Mode.SRC); 
      break; 
     case "Deprecated": 
      status = context.getString(R.string.deprecated); 
      drawable.setColorFilter(0xFF757575, PorterDuff.Mode.SRC); 
      break; 
     default: 
      status = context.getString(R.string.reserved); 
      drawable.setColorFilter(0xFF3BA757, PorterDuff.Mode.SRC); 
    } 
    holder.statustxt.setBackground(drawable); 
    holder.statustxt.setText(status); 
} 

public String convert_num(String string) { 
    string = string.replace("0", "۰").replace("1", "۱").replace("2", "۲").replace("3", "۳").replace("4", "۴").replace("5", "۵").replace("6", "۶").replace("7", "۷").replace("8", "۸").replace("9", "۹"); 
    return string; 
} 

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

public void click(final int position) { 
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context); 
    alertDialogBuilder.setView(R.layout.dialog_layout); 
    alertDialogBuilder.setPositiveButton("بله", new DialogInterface.OnClickListener() { 
     @Override 
     public void onClick(DialogInterface dialog, int which) { 
      final Trans trans = new Trans(); 
      trans.getPaymentMode(context, new AsyncResponse<String>() { 
       @Override 
       public void onResponse(String response) { 
        if (response.replace("\"", "").equals("Direct")) { 
         trans.cancelReserve(context, new AsyncResponse<String>() { 
          @Override 
          public void onResponse(String response) { 
           if (response.equals("true")) { 
            AlertDialog.Builder alertDialogBuilder1 = new AlertDialog.Builder(context); 
            alertDialogBuilder1.setView(R.layout.dialog_layout); 
            alertDialogBuilder1.setPositiveButton("ادامه", null); 
            AlertDialog alertDialog1 = alertDialogBuilder1.create(); 
            alertDialog1.show(); 
            alertDialog1.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(18); 
            TextView title = (TextView) alertDialog1.findViewById(R.id.title); 
            title.setText("توجه!"); 
            TextView tet = (TextView) alertDialog1.findViewById(R.id.text); 
            tet.setText("رزرو با موفقیت لغو شد."); 
            arrayList.get(position).res_status = "Canceled"; 
            synchronized (this) { 
             for (int i = 0; i < arrayList.size(); i++) { 
              notifyItemChanged(i); 
             } 
            } 
           } else { 
            AlertDialog.Builder alertDialogBuilder1 = new AlertDialog.Builder(context); 
            alertDialogBuilder1.setView(R.layout.dialog_layout); 
            alertDialogBuilder1.setPositiveButton("ادامه", null); 
            AlertDialog alertDialog1 = alertDialogBuilder1.create(); 
            alertDialog1.show(); 
            alertDialog1.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(18); 
            TextView title = (TextView) alertDialog1.findViewById(R.id.title); 
            title.setText("خطا!"); 
            TextView tet = (TextView) alertDialog1.findViewById(R.id.text); 
            tet.setText("عملیات لغو رزرو وقت موفقیت‌آمیز نبود. لطفا مجدداً تکرار فرمایید."); 
           } 
          } 

          @Override 
          public void onErrorResponse(String error) { 
           AlertDialog.Builder alertDialogBuilder1 = new AlertDialog.Builder(context); 
           alertDialogBuilder1.setView(R.layout.dialog_layout); 
           alertDialogBuilder1.setPositiveButton("ادامه", null); 
           AlertDialog alertDialog1 = alertDialogBuilder1.create(); 
           alertDialog1.show(); 
           alertDialog1.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(18); 
           TextView title = (TextView) alertDialog1.findViewById(R.id.title); 
           title.setText("خطا!"); 
           TextView tet = (TextView) alertDialog1.findViewById(R.id.text); 
           tet.setText("عملیات لغو رزرو وقت موفقیت‌آمیز نبود. لطفا مجدداً تکرار فرمایید."); 
          } 
         }, arrayList.get(position).ft_id, arrayList.get(position).res_id); 
        } else { 
         Intent intent = new Intent(context, CreditCardActivity.class); 
         intent.putExtra("ft_id", arrayList.get(position).ft_id); 
         intent.putExtra("res_id", arrayList.get(position).res_id); 
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
         context.startActivity(intent); 
        } 
       } 

       @Override 
       public void onErrorResponse(String error) { 

       } 
      }, arrayList.get(position).node_id); 
     } 
    }); 
    alertDialogBuilder.setNegativeButton("خیر", null); 
    AlertDialog alertDialog = alertDialogBuilder.create(); 
    alertDialog.show(); 
    alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextSize(18); 
    alertDialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextSize(18); 
    TextView title = (TextView) alertDialog.findViewById(R.id.title); 
    title.setText("تایید لغو رزرو"); 
    TextView tet = (TextView) alertDialog.findViewById(R.id.text); 
    tet.setVisibility(View.GONE); 
} 

Meine arrayList s Größe ist 18, aber wenn ich auf einen der SwitchCompat s klicke, dauert es etwa 1sec. Warum passiert dies?

Answer 1

Sie brauchen nicht zu setAdapter jedes Mal, wenn sich Ihre Daten ändern. Sie einen Adapter einmal erstellen (in Ihrer Tätigkeit onCreate()) und jedes Mal der Datenänderungen Datensatz wieder an Adapter und ruft myAdapter.notifyDataSetChanged();

diese Methode ReservedTimesAdapter Klasse hinzufügen

public void setList(ArrayList<ReservedTimesModel> arrayList) 
    { 
     this.arrayList = arrayList; 
    } 

dann ein ReservedTimesAdapter Objekt definieren und hinzufügen setAdapter-Code in Ihre Aktivität onCreate() class.like dies:

ReservedTimesAdapter myAdapter= new ReservedTimesAdapter(filtered, ReservedTimesActivity.this); 

recyclerView.setAdapter(myAdapter); 

undändernMethode wie folgt:

public void filter() { 
    ArrayList<ReservedTimesModel> filtered = new ArrayList<>(); 
    for (ReservedTimesModel reservedTimesModel : arrayList) { 
    switch (reservedTimesModel.res_status) { 
     case "CanceledByAdmin": 
      if (cancelledByAdmin.isChecked()) { 
       filtered.add(reservedTimesModel); 
      } 
      break; 
     case "Canceled": 
      if (cancelled.isChecked()) { 
       filtered.add(reservedTimesModel); 
      } 
      break; 
     case "Pending": 
      if (pending.isChecked()) { 
       filtered.add(reservedTimesModel); 
      } 
      break; 
     case "Deprecated": 
      if (pending.isChecked()) { 
       filtered.add(reservedTimesModel); 
      } 
      break; 
     default: 
      if (reserved.isChecked()) { 
       filtered.add(reservedTimesModel); 
      } 
     } 
    } 
    myAdapter.setList(filtered); 
    myAdapter.notifyDataSetChanged(); 
}