如何管理自定義的ListView項目的狀態

Question

我正在開發中，我不得不從一個ListView控件通過單擊第一個ListView.The第二屆活動的ListView移動到另一個ListView控件的應用程序是一個肯定的圖標圖像和一個自定義的ListView TextView中。圖像圖標是在啓動和點擊列表項相應的圖像會變得Visible.2nd的ListView後看不見的是單一的點擊列表視圖。！[在這裏輸入的形象描述] [1] 當我點擊後退按鈕，再點擊了首先ListView控件，第2的ListView成爲無形的被點擊項目..

我在Android的新的，不知道我怎麼有管理的ListItem點擊的狀態。 PLZ幫助...... 我必須從第一個屏幕移動到第二屏幕，並保持ListView項的狀態時reclick是在1日ListView項作出。

第二列表視圖活動

SharedPreferences pref; 
private static String names[] = {"SV3","SV4","SV6","LV1"}; 
/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.selectibx); 
    lv=(ListView)findViewById(R.id.listView1); 
    adapter = new LvCustomAdapter(this, names); 
    lv.setAdapter(adapter); 
    LoadSelections(); 
    ImageView img=(ImageView) lv.findViewById(R.id.image); 
    if(img!=null) 
    { 
     img.setImageResource(R.drawable.black_arrow); 
     img.setVisibility(View.VISIBLE); 
     } 
lv.setOnItemClickListener(this); 
    back=(ImageView)findViewById(R.id.imageback); 
    back.setOnClickListener(new View.OnClickListener() { 
    public void onClick(View arg0) { 
Intent = new Intent(getApplicationContext(),MainActivity.class); 
Bundle b=new Bundle(); 
b.putString("state", "clicked"); 
    intent.putExtras(b); 
setResult(RESULT_OK, intent); 
startActivity(intent); 
finish(); 
} 

    }); 
} 

public void onItemClick(AdapterView<?> lvv, View view, int position, long id) { 



    if (current != -1) { 
     View last = lvv.getChildAt(current); // the last one clicked 
     last.findViewById(R.id.image).setVisibility(View.GONE); 
    } 
    view.findViewById(R.id.image).setVisibility(View.VISIBLE); 
    current = position; // remember the new clicked position 

    System.out.println("Selected State is: "+current); 

    SaveSelections(view); 

} 

private void SaveSelections(View v) { 
    // TODO Auto-generated method stub 
    SharedPreferences settings = getSharedPreferences(PREFS_NAME,0); 
     SharedPreferences.Editor editor = settings.edit(); 

     editor.putInt("Raman", current); 
     editor.commit(); 
} 

private void LoadSelections() { 


     pref = this.getApplicationContext().getSharedPreferences(PREFS_NAME, MODE_WORLD_READABLE); 
     int xy=pref.getInt("Raman",1); 
     adapter = new LvCustomAdapter(this, names); 
     lv.setAdapter(adapter); 
      lv.setSelection(xy); 

      System.out.println(lv.getSelectedItemPosition()+"****"+xy); 

     View v=lv.getChildAt(xy); 

    } 

}

自定義適配器類：

public class LvCustomAdapter extends BaseAdapter { 
protected ListView mListView; 
    public String title[]; 
    //public String designations[]; 
    public Activity context; 
    public LayoutInflater inflater; 
    int current=-1; 
    public LvCustomAdapter(Activity context,String[] title) { 
     super(); 

     this.context = context; 
     this.title = title; 
     this.inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public int getCount() { 
     // TODO Auto-generated method stub 
     return title.length; 
    } 

    public Object getItem(int position) { 
     // TODO Auto-generated method stub 
     return null; 
    } 

    public long getItemId(int position) { 
     // TODO Auto-generated method stub 
     return 0; 
    } 

    public static class ViewHolder 
    { 
     ImageView imgarrow; 
     TextView txtViewName; 


    } 

    public View getView(int position, View convertView, ViewGroup parent) { 
     // TODO Auto-generated method stub 

     ViewHolder holder; 
     if(convertView==null) 
     { 
      holder = new ViewHolder(); 
      convertView = inflater.inflate(R.layout.commonlist, null); 

      holder.txtViewName = (TextView) convertView.findViewById(R.id.tvItem); 


      holder.imgarrow = (ImageView) convertView.findViewById(R.id.image); 


      /* holder.email.setOnClickListener(emailClickListener); 
      holder.mobile.setOnClickListener(mobileClickListener); 
      holder.phone.setOnClickListener(phoneClickListener); 
      convertView.setTag(holder); */ 
      //int a=convertView.getSelectedItemPosition(); 
      int a=position; 



      convertView.setTag(holder); 
     } 
     else 
      holder=(ViewHolder)convertView.getTag(); 
    holder.txtViewName.setText(title[position]); 
    holder.imgarrow.setImageResource(R.drawable.black_arrow); 
holder.imgarrow.setVisibility(View.INVISIBLE); 

     return convertView; 
    } 
} 

感謝....

Answer 1

爲了維持你可以使用的狀態。

Shared Preferences 
Save your desired values in onPause() and get them again in onResume() 

希望它能爲你工作。