清除所有在spinner项目中的列表

我试过这段代码，但是一个数组列表将被清除，但第二个数据不清楚请给我解决方案在第一个spinner清除spinner 2数据但是spinner 2 cant明确第三spinner数据请告诉我解决方案清除所有在spinner项目中的列表

我的数组列表

private ArrayList<String> students; 
    private ArrayList<String> teachers; 
    private ArrayList<String> CastName; 
    private ArrayList<String> SubCastName; 

spinner1.setOnItemSelectedListener(new OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 

      spinnerreligiontext.setText(getNames(position)); 
      stst = spinnerreligiontext.getText().toString(); 
      System.out.println(getNames(position)); 
      SubCastName.clear(); 
      CastName.clear(); 


      CastName(); 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> parent) { 

     } 
    }); 


    spinner2.setOnItemSelectedListener(new OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 

      aaa = getNamess(position); 
      System.out.println("spin2"+getNamess(position)); 
      SubCastName.clear(); 

      SubCastName(); 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> parent) { 

     } 
    }); spinner3.setOnItemSelectedListener(new OnItemSelectedListener() { 
     @Override 
     public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 

      aaa = getSubNamess(position); 

      System.out.println("spin3"+getSubNamess(position)); 
     } 

     @Override 
     public void onNothingSelected(AdapterView<?> parent) { 

     } 
    });

一套适配器代码

for (int i = 0; i < j.length(); i++) { 
      try { 

       //Getting json object 
       JSONObject json = j.getJSONObject(i); 

       //Adding the name of the student to array list 
       students.add(json.getString("AllInOne")); 


      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 
     } 


     spinner1.setAdapter(new ArrayAdapter<String>(RagistarActivity.this, android.R.layout.simple_spinner_dropdown_item, teachers));

来源

2016-09-25 mayank gajjar

由于您使用四个数组来填充您可以通过.clear清除微调（）方法，所以

students.clear(); 
teachers.clear(); 
CastName.clear(); 
SubCastName.clear();

否则你可以在点适配器设置为null是你需要清除微调项目

来源

2017-03-18 19:01:16

清除所有在spinner项目中的列表

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