Android的ListView中自定义适配器getView（）从来没有所谓了 [英] Android listview custom adapter getView() never called up

问题描述

我是一个新的Andr​​oid developer.I我自定义列表视图中发现的问题。我不能够进入到 getView（）方法，但我能够进入 getCount将（） method.Kindly帮我，我没有找到任何合适的答案，同时寻找问题。任何建议。先谢谢了。

活动code：

  CustomAdapterAddFriend适配器=新CustomAdapterAddFriend（SearchActivity.this，friendsArrayList）;  mListView.setAdapter（适配器）; // friendsArrayList为String类型的ArrayList中
 

适配器code以下：

 公共类CustomAdapterAddFriend延伸BaseAdapter {    上下文语境;
    ArrayList的＆LT;串GT;名单;
     Image_Loader imgLoader;
    公共CustomAdapterAddFriend（上下文的背景下，ArrayList的＆LT;串GT;名单）{
        this.context =背景;
        this.lists =名单;
    }    @覆盖
    公众诠释的getCount（）{
        // TODO自动生成方法存根
        Log.e（Sizee ==，+ lists.size（））;
        Log.e（名称===，+ lists.get（0））;
        返回lists.size（）;    }    @覆盖
    公共对象的getItem（INT为arg0）{
        // TODO自动生成方法存根
        返回lists.get（为arg0）;
    }    @覆盖
    众长getItemId（INT为arg0）{
        // TODO自动生成方法存根
        返回0;
    }    @TargetApi（Build.VERSION_ codeS.GINGERBREAD）
    @燮pressLint（NewApi）
    @覆盖
    公共查看getView（INT POS，查看convertView，ViewGroup中ARG2）{
        ViewHolder支架=无效;
        Log.e（Sizee ==内，+ lists.size（））;
        Log.e（名===内部，+ lists.get（POS））;
          如果（android.os.Build.VERSION.SDK_INT＆GT; 9）{
              。StrictMode.ThreadPolicy政策=新StrictMode.ThreadPolicy.Builder（）permitAll（）建（）;
              StrictMode.setThreadPolicy（政策）;
            }        LayoutInflater mInflater =（LayoutInflater）上下文
                .getSystemService（Activity.LAYOUT_INFLATER_SERVICE）;
        如果（convertView == NULL）{
            convertView = mInflater.inflate（R.layout.friend_search_list_row，NULL）;
            持有人=新ViewHolder（）;
                holder.image =（ImageView的）convertView.findViewById（R.id.addbtn）;
                holder.mName =（TextView中）convertView.findViewById（R.id.friendname）;
                holder.mSex =（TextView中）convertView.findViewById（R.id.friendsex）;            convertView.setTag（保持器）;
        }其他{
            支架=（ViewHolder）convertView.getTag（）;
        }
        字符串CurrentString = lists.get（POS）
        的String [] =分离CurrentString.split（＃* @）;
        字符串名称=分离[0];
        串性;分离[1];        Log.e（名称===，+名称）;
        holder.mName.setText（名）;
        holder.mSex.setText（性）;// INT装载机= R.drawable.boy;
// imgLoader.DisplayImage（list.get（POS），装载机，holder.image）;
        返回convertView;    }    类ViewHolder {
        ImageView的形象;
        TextView的MNAME，MSEX;
    }
}
 

解决方案

请返回位置从 getItemId（INT位置）方法。
像

  @覆盖
众长getItemId（INT位置）{返回的位置;
}
 

I am a new Android developer.I am finding problem in custom listview. I am not able to enter into getView() method but I am able to enter into getCount() method.Kindly help me.I don't found any suitable answer while searching for problem. Any suggestion. Thanks in advance.

Activity Code:

 CustomAdapterAddFriend adapter = new CustomAdapterAddFriend(SearchActivity.this,friendsArrayList);

  mListView.setAdapter(adapter);//friendsArrayList is ArrayList of String type

Adapter code below:

public class CustomAdapterAddFriend extends BaseAdapter {

    Context context;
    ArrayList<String> lists;
     Image_Loader imgLoader ;
    public CustomAdapterAddFriend(Context context, ArrayList<String> lists) {
        this.context = context;
        this.lists = lists;
    }

    @Override 
    public int getCount() {
        // TODO Auto-generated method stub
        Log.e("Sizee==", ""+lists.size());
        Log.e("name===", ""+lists.get(0));
        return lists.size();

    }

    @Override
    public Object getItem(int arg0) {
        // TODO Auto-generated method stub
        return lists.get(arg0);
    }

    @Override
    public long getItemId(int arg0) {
        // TODO Auto-generated method stub
        return 0;
    }

    @TargetApi(Build.VERSION_CODES.GINGERBREAD) 
    @SuppressLint("NewApi") 
    @Override
    public View getView(int pos, View convertView, ViewGroup arg2) {
        ViewHolder holder = null;
        Log.e("Sizee== inside", ""+lists.size());
        Log.e("name=== inside", ""+lists.get(pos));
          if (android.os.Build.VERSION.SDK_INT > 9) {
              StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
              StrictMode.setThreadPolicy(policy);
            }

        LayoutInflater mInflater = (LayoutInflater) context
                .getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        if (convertView == null) { 
            convertView = mInflater.inflate(R.layout.friend_search_list_row, null);
            holder = new ViewHolder();
                holder.image=(ImageView)convertView.findViewById(R.id.addbtn);
                holder.mName=(TextView)convertView.findViewById(R.id.friendname);
                holder.mSex=(TextView)convertView.findViewById(R.id.friendsex);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        } 


        String CurrentString=lists.get(pos);
        String[] separated = CurrentString.split("#*@");
        String name =separated[0]; 
        String sex=separated[1];

        Log.e("name===", ""+name);
        holder.mName.setText(name);
        holder.mSex.setText(sex);

//       int loader = R.drawable.boy;
//      imgLoader.DisplayImage(list.get(pos) , loader, holder.image);


        return convertView;

    }

    class ViewHolder {
        ImageView image; 
        TextView mName,mSex;
    }


}

解决方案

Try returning position from getItemId(int position) method. like

@Override
public long getItemId(int position) {

return position;
}

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