動態地添加和刪除微調器

Question

嗨我創建了一個包含兩個按鈕添加和刪除的佈局，當我點擊加號按鈕時，它將添加一個微調器，並且我有另一個按鈕（刪除）可以在圖片中看到，現在我希望當我點擊刪除按鈕時，它會從最後刪除微調，請指導我如何刪除微調？我已經通過編程添加了微調，並且正在編程中創建微調。我會發布我的代碼。

public class AddMenulist extends Fragment{ 

    TextView tv1,tv2,tv3,tv4; 
    Button bt1 , bt2; 
    LinearLayout linearlayout,linearlayout1; 

    ArrayList<String> spinnerArray = new ArrayList<String>(); 
    private Spinner spinner; 
    private Spinner spinner2; 

    public AddMenulist(){ 

    } 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 

     View rootView = inflater.inflate(R.layout.fragment_pages, container, false); 

     tv1 = (TextView)rootView.findViewById(R.id.userName); 
     tv2 = (TextView)rootView.findViewById(R.id.userName2); 

     bt1 = (Button)rootView.findViewById(R.id.add); 
     bt2 = (Button)rootView.findViewById(R.id.delete); 

     linearlayout = (LinearLayout)rootView.findViewById(R.id.main_layout); 

     spinnerArray.add("one"); 
     spinnerArray.add("two"); 
     spinnerArray.add("three"); 
     spinnerArray.add("four"); 
     spinnerArray.add("five"); 

     bt1.setOnClickListener(new View.OnClickListener() 
     { 




      @Override 
      public void onClick(View view) 
      { 

       //Toast.makeText(getActivity(), "Test", Toast.LENGTH_LONG).show(); 

       linearlayout1 = new LinearLayout(getActivity()); 
       LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); 
       linearlayout1.setOrientation(LinearLayout.HORIZONTAL); 
       layoutParams.setMargins(10, 0, 0, 0); 
       linearlayout1.setLayoutParams(layoutParams); 


       tv3 = new TextView(getActivity()); 
       tv3.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL); 
       tv3.setText("Label"); 

       tv4 = new TextView(getActivity()); 
       tv4.setText("Category"); 




       spinner = new Spinner(getActivity()); 
       ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_dropdown_item, spinnerArray); 

       spinner.setAdapter(spinnerArrayAdapter); 

       spinner2 = new Spinner(getActivity()); 
       ArrayAdapter<String> spinnerArrayAdapter2 = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_spinner_dropdown_item, spinnerArray); 

       spinner2.setAdapter(spinnerArrayAdapter2); 

       linearlayout1.addView(tv3); 
       linearlayout1.addView(spinner); 

       linearlayout1.addView(tv4); 
       linearlayout1.addView(spinner2); 
       linearlayout.addView(linearlayout1); 


      } 
     }); 

     bt2.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View view) 
      { 

       //Toast.makeText(getActivity(), "Test", Toast.LENGTH_LONG).show(); 


      } 
     }); 


     return rootView; 
    } 


} 

Answer 1

使用此 yourSpinner.setVisibility（View.GONE）;