從定製適配器更新後在第一個位置列表查看

使用Web服務調用每隔N分鐘刷新一次列表視圖。刷新我的當前位置後，回到列表視圖中的第一項。從定製適配器更新後在第一個位置列表查看

這是我的代碼。

private void updateListUI(String response){ 

arrList = new ArrayList<Object>(); // to store array list  
Object obj; 
obj = some data; // some parsing of data and store in obj instance 
arrList.add(obj); 
if(listview.getAdapter()==null){ 
    adapter = new customAdapter(myActivity,layout,arrList); 
    listview.setAdapter(adapter); 
}else{ 
    HeaderViewListAdapter adapterwrap = 
    (HeaderViewListAdapter) listview.getAdapter(); 

    BaseAdapter basadapter = (BaseAdapter) adapterwrap.getWrappedAdapter(); 
    customAdapter ad = (customAdapter)basadapter;    
    ad.setData(arrList); // it is a func in custom adapter that add items 
    ad.notifyDataSetChanged(); 
    // here i want to set the position of list view,as it goes back to first item 
} 
} 
BroadcastReceiver serviceReceiver = new BroadcastReceiver() { 
public void onReceive(final Context context, final Intent intent) { 
     updateListUI(intent.getStringExtra(response_from_service)); 
} 
}

//意向服務調用webservice和廣播響應接收器完成調用。我的問題是在每個updateListUI調用列表視圖回到第一個位置。有什麼辦法來解決這個..？刷新期間

int position = 12; // your position in listview 
ListView listView = (ListView) findViewById(R.id.listView); 
listView.setSelectionFromTop(position, 0);

來源

2013-01-04 Dory

這裏有什麼問題？ –