ListView，防止添加新项目

Question

我有我的listview活动工作得很好，但我有一个恼人的问题。 无论何时恢复，它都会在列表中添加相同的项目，并且这个项目会变得更大。我只是想让它保持我首先想到的价值。 我该怎么做？ 这里是我的活动

public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 

     setContentView(R.layout.custom_list_view); 

     adapter = new SimpleAdapter(
       this, 
       list, 
       R.layout.custom_row_view, 
       new String[] {"pen","price","color"}, 
       new int[] {R.id.text1,R.id.text2, R.id.text3} 
       ); 


     populateList(); 
     setListAdapter(adapter); 
    } 

这里是我的ArrayList：

static final ArrayList<LinkedHashMap<String,String>> list = 
     new ArrayList<LinkedHashMap<String,String>>(); 

    private void populateList() { 
     LinkedHashMap<String,String> temp = new LinkedHashMap<String,String>(); 
     temp.put("pen","        Mission name");  
     list.add(temp); 
     LinkedHashMap<String,String> temp1 = new LinkedHashMap<String,String>(); 
     temp1.put("pen","       Map activity");   

     list.add(temp1); 
     LinkedHashMap<String,String> temp2 = new LinkedHashMap<String,String>(); 
     temp2.put("pen","       Check sensors");  
     list.add(temp2); 

     LinkedHashMap<String,String> temp3 = new LinkedHashMap<String,String>(); 
     temp3.put("pen","       Infrared Image"); 
     list.add(temp3); 

     LinkedHashMap<String,String> temp4 = new LinkedHashMap<String,String>(); 
     temp4.put("pen","       Radar Image"); 
     list.add(temp4); 

     LinkedHashMap<String,String> temp5 = new LinkedHashMap<String,String>(); 
     temp5.put("pen","       Visual image"); 
     list.add(temp5); 

     LinkedHashMap<String,String> temp6 = new LinkedHashMap<String,String>(); 
     temp6.put("pen","       suscribe to Viewer"); 
     list.add(temp6); 
    } 

Answer 1

不要声明列表中为静态。 即：

final ArrayList<LinkedHashMap<String,String>> list = new ArrayList<LinkedHashMap<String,String>>();