滯後過濾ArrayList和對RecyclerView

設置適配器時，嘿，我想篩選我ArrayList在一個RecyclerViewSwitchCompat和顯示過濾列表，我使用此代碼：滯後過濾ArrayList和對RecyclerView

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); 
}

我的arrayList的大小是18，但是當我點擊其中一個SwitchCompat時，它滯後約1秒。這是爲什麼發生？

來源

2016-07-16 Amir_P

您是否嘗試分析您的應用？看到[this]（https://developer.android.com/studio/profile/traceview.html） – pskink

imho the bottelneck是''Html.fromHtml''內的'onBindViewHolder'，使用'Spannable＃setSpan'代替，你是否描述你的應用你見過我上面發佈的鏈接嗎？ – pskink

是的，我檢查，但它很難理解@pskink –

每當數據發生變化時，您不需要setAdapter。您創建一個適配器一次（在你的活動onCreate()）和每一個數據的更改設置數據再次適配器和通話時間myAdapter.notifyDataSetChanged();

此方法添加到ReservedTimesAdapter類

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

然後定義一個ReservedTimesAdapter對象，並添加setAdapter代碼到你的活動onCreate() class.like這樣的：

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

recyclerView.setAdapter(myAdapter);

，並更改filter方法如下：

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(); 
}

來源

2016-07-16 11:23:58

是的，我相信'新的ReservedTimesAdapter（）'和'recyclerView.setAdapter（）'是耗時的任務 –

請張貼代碼如何設置數據到我的適配器，因爲我試過的一切都不起作用@AlexCohn –

謝謝它減少滯後 –

滯後過濾ArrayList和對RecyclerView

回答

相關問題