在我们在android

Question

中输入第一个字母本身时未显示的人建议列表在我们输入第一个字母本身期间未显示的用户建议列表中。在搜索栏中输入第二个字母后，建议将显示。任何人都会给出此question.`可能的解决方案

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

你要维持两个ARRAYLIST，一个为你的所有数据ListView，另一个用于过滤数据...

所以在我下面的解决方案我有两个ArrayList一个是所有名称为FUL的数据L_DATA_ARRAYLIST，另一个用于FILTER_ARRAYLIST，所以PLZ是指下面的解决方案是： -

 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) { 

      } 
     });