在我們在android

Question

中輸入第一個字母本身時未顯示的人建議列表在我們輸入第一個字母本身期間未顯示的用戶建議列表中。在搜索欄中輸入第二個字母后，建議將顯示。任何人都會給出此question.`可能的解決方案

search.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) { 

      } 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) { 
       adapter.getFilter().filter(s, new Filter.FilterListener() { 
        public void onFilterComplete(int count) { 
         Log.d("log", "result count:" + count); 
         if (count == 0) { 
          usermsg.setText("No username found"); 
          usermsg.setVisibility(View.VISIBLE); 
          peoplelist.setVisibility(View.GONE); 
         } else { 
          usermsg.setVisibility(View.GONE); 
          peoplelist.setVisibility(View.VISIBLE); 

         } 
        } 
       }); 
      } 

      @Override 
      public void afterTextChanged(final Editable s) { 

       adapter.getFilter().filter(s, new Filter.FilterListener() { 
        public void onFilterComplete(int count) { 
         Log.d("log", "result count:" + count); 
         if (text.equals("people")) { 
          //movieList.clear(); 
          getPeople(); 
          if (count == 0) { 
           usermsg.setText("No username found"); 
           usermsg.setVisibility(View.VISIBLE); 
           peoplelist.setVisibility(View.GONE); 
          } else { 
           usermsg.setVisibility(View.GONE); 
           peoplelist.setVisibility(View.VISIBLE); 
          } 
         } else if (text.equals("tag")) { 
          getTag(s); 
           usermsg.setText("# No Hash Tag found"); 
           usermsg.setVisibility(View.VISIBLE); 
           peoplelist.setVisibility(View.GONE); 
          /*else { 
           usermsg.setVisibility(View.GONE); 
           peoplelist.setVisibility(View.VISIBLE); 
          }*/ 
         } 
        } 
       }); 
      } 
     });` 

Answer 1

你要維持兩個ARRAYLIST，一個爲你的所有數據ListView，另一個用於過濾數據...

所以在我下面的解決方案我有兩個ArrayList一個是所有名稱爲FUL的數據L_DATA_ARRAYLIST，另一個用於FILTER_ARRAYLIST，所以PLZ是指下面的解決方案是： -

 search.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) { 

      } 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) { 
       if (s.toString().length() == 0) { 

        usermsg.setText("No username found"); 
        usermsg.setVisibility(View.VISIBLE); 



        adapter = new YOURADAPTERCLASS(YOUR_ACTIVITY.this, FULL_DATA_ARRAYLIST); 
        peoplelist.setAdapter(adapter); 
       } else { 

         usermsg.setVisibility(View.GONE); 
         peoplelist.setVisibility(View.VISIBLE); 


        FILTER_ARRAYLIST.clear(); 
        for (int i = 0; i < FULL_DATA_ARRAYLIST.size(); i++) { 
         if (FULL_DATA_ARRAYLIST.get(i).getName().toLowerCase().contains(s.toString().toLowerCase())) 
          FILTER_ARRAYLIST.add(FULL_DATA_ARRAYLIST.get(i)); 
        } 
        adapter = new YOURADAPTERCLASS(YOUR_ACTIVITY.this, FILTER_ARRAYLIST); 
        peoplelist.setAdapter(adapter); 
       } 

      } 

      @Override 
      public void afterTextChanged(Editable s) { 

      } 
     });