Android：ListView只顯示第一個元素

我的自定義ListView有問題。我創建了自定義適配器，但在列表中只顯示了第一個元素。我無法弄清楚爲什麼。在這裏有在名單locadedAndroid：ListView只顯示第一個元素

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedBundle) { 

     View firstAccessView; 
     if(savedBundle==null) { 
      firstAccessView = inflater.inflate(R.layout.search_fragment_layout, null); 

      //Contact friendContact = ContactListFragment.findContactById(String.valueOf(this.friendId)); 

      ((ActionBarActivity)getActivity()).getSupportActionBar().setTitle("Search Friend"); 

      for(int i=0; i<8; i++){ 
       Contact c = new Contact(idContact[i], nameSurname[i], facebookId[i], timeStamp[i]); 
       this.rows.add(c); 

      } 

      adapter = new SearchListAdapter(getActivity(), this.rows); 
      list = (ListView) firstAccessView.findViewById(R.id.listSearch); 
      list.setAdapter(adapter); 

      adapter.notifyDataSetChanged(); 


      list.setOnItemClickListener(new AdapterView.OnItemClickListener() { 

       @Override 
       public void onItemClick(AdapterView<?> parent, View view, 
             int position, long id) { 
        Toast.makeText(getActivity().getApplicationContext(), "item selected", Toast.LENGTH_SHORT).show(); 

       } 
      }); 

     }else{ 
      firstAccessView = getView(); 
     } 
     return firstAccessView; 
    }

片段的代碼在這裏有我的佈局

<?xml version="1.0" encoding="utf-8"?> 
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:background="#ffffff" 
    > 

     <ListView 

      android:id="@+id/listSearch" 
      android:scrollbars="none" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:footerDividersEnabled="false" 
      android:headerDividersEnabled="false" 
      android:paddingStart="15dp" 
      android:paddingEnd="15dp" 
      /> 

</LinearLayout>

這裏我的適配器

public class SearchListAdapter extends ArrayAdapter<Contact>{ 

    private View view; 
    private final Activity context; 
    private List<Contact> rows; 
    private int count = 1; 


    public SearchListAdapter(Activity context, List<Contact> rows){ 

     super(context, R.layout.list_contacts, rows); 
     this.context = context; 
     this.rows = rows; 

    } 

    public View getView(int position, View convertView, ViewGroup parent) { 

     ViewHolder holder; 
     if (convertView == null) { 
      LayoutInflater inflater = context.getLayoutInflater(); 
      view = inflater.inflate(R.layout.list_contacts, null); 
      view.setPadding(0,10,0,10); 

      holder = new ViewHolder(); 
      holder.imageContact = (ImageView)view.findViewById(R.id.imageContact); 
      holder.nameSurnameContact = (TextView) view.findViewById(R.id.nameSurnameContact); 
      holder.idContact = (TextView) view.findViewById(R.id.idContact); 

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

      holder.nameSurnameContact.setTextColor(Color.BLACK); 
      holder.nameSurnameContact.setText(this.rows.get(position).getName()); 
      holder.idContact.setText(this.rows.get(position).getFacebook_id()); 
      Picasso.with(context).load("https://graph.facebook.com/" + this.rows.get(position).getFacebook_id() + "/picture?height=115&width=115").placeholder(R.mipmap.iconuseranonymous).transform(new CircleTransform()).fit().centerCrop().into(holder.imageContact); 

     } 

     return view; 
    } 


    @Override 
    public Contact getItem(int position){ 
     return this.rows.get(position); 

    } 

    @Override 
    public int getCount() { 
     return count; 
    } 

    public void setCount(int count) { 
     this.count = count; 
    } 

    static class ViewHolder { 

     ImageView imageContact; 
     TextView nameSurnameContact; 
     TextView idContact; 
     int position; 
    } 
}

來源

2015-09-05 FF91

使用此代碼，您需要設置的if語句以外convertview變量：

 public class SearchListAdapter extends ArrayAdapter<Contact>{ 

//private View view; 
private final Activity context; 
private List<Contact> rows; 
private int count; 


public SearchListAdapter(Activity context, List<Contact> rows){ 

    super(context, R.layout.list_contacts, rows); 
    this.context = context; 
    this.rows = rows; 

} 

public View getView(int position, View convertView, ViewGroup parent) { 

    ViewHolder holder; 
    if (convertView == null) { 
     LayoutInflater inflater = context.getLayoutInflater(); 
     convertView = inflater.inflate(R.layout.list_contacts, null); 
     convertView.setPadding(0,10,0,10); 

     holder = new ViewHolder(); 
     holder.imageContact = (ImageView)convertView.findViewById(R.id.imageContact); 
     holder.nameSurnameContact = (TextView) convertView.findViewById(R.id.nameSurnameContact); 
     holder.idContact = (TextView) convertView.findViewById(R.id.idContact); 

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



    } 

    holder.nameSurnameContact.setTextColor(Color.BLACK); 
     holder.nameSurnameContact.setText(this.rows.get(position).getName()); 
     holder.idContact.setText(this.rows.get(position).getFacebook_id()); 
     Picasso.with(context).load("https://graph.facebook.com/" + this.rows.get(position).getFacebook_id() + "/picture?height=115&width=115").placeholder(R.mipmap.iconuseranonymous).transform(new CircleTransform()).fit().centerCrop().into(holder.imageContact); 

    return convertView; 
} 


@Override 
public Contact getItem(int position){ 
    return this.rows.get(position); 

} 

@Override 
public int getCount() { 
    return this.rows.size(); 
} 

public void setCount(int count) { 
    this.count = count; 
} 



class ViewHolder { 

    ImageView imageContact; 
    TextView nameSurnameContact; 
    TextView idContact; 
    int position; 
} 
}

來源

2015-09-05 14:32:06 Santiago

在修復添加用'getCount將（）'方法。 – Breavyn

完美，我編輯修復計數 – Santiago

的代碼的代碼你陣列適配器大小設置爲1，並且您永遠不會更改它。

public SearchListAdapter(Activity context, List<Contact> rows){ 
    count = rows.size();

來源

2015-09-05 14:25:00 Breavyn

現在的行被顯示，但第一個之後的行是空的 – FF91

爲什麼使用計數器的項目？您的counter變量始終是相同的值（1），並且還通過引用您的getCount方法。您可以相應地改變，但在我看來，除非你有一些具體的使用情況下，這將是最好只使用列表長度在getCount方法：

@Override 
public int getCount() { 
    return this.rows.size(); 
}

來源

2015-09-05 14:27:35 Salem

Android：ListView只顯示第一個元素

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