Question

更新：此根本原因不在此代码中。显然它与我放在列表视图背景中的图像视图有关。似乎列表位于背景图像下方的屏幕底部。但是，奇怪的是，相同的布局在邻居选项卡中也很好用，它也显示了列表视图。

我有一个应该显示64个数据项的列表适配器。就Log.d语句显示，getCount确实返回64。但是getView只被调用一次，索引i为0。到目前为止，getView末尾记录的数据看起来不错。

对不起那堆代码，但我不知道哪个部分是问题所在。如果您认为错误可能出现在列表片段本身或您建议查看的内容中，我很乐意分享更多内容。

public class SpieleAdapter  extends BaseAdapter {

    Context context;
    DateFormat df = new SimpleDateFormat("dd.mm.yyyy HH:mm");

    public SpieleAdapter (Context context) {
        super();
        this.context = context;

    }

    @Override
    public int getCount() {
        Log.d("SpieleAdapter", "Anzahl spiele: " + WorldCupManager.getGameList().size());
        return WorldCupManager.getGameList().size();
    }

    @Override
    public Object getItem(int i) {
        return WorldCupManager.getGameList().get(i);
    }

    @Override
    public long getItemId(int i) {
        return (long) i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

        Log.d("SpieleAdapter", "Liefere View Nr. " + i);

        if (view == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = inflater.inflate(R.layout.zelle_spiel, viewGroup, false);

            ViewHolder viewHolder = new ViewHolder();
            viewHolder.gruppeView     = (TextView) view.findViewById(R.id.gruppeText);
            viewHolder.heimView       = (TextView) view.findViewById(R.id.heimText);
            viewHolder.gastView       = (TextView) view.findViewById(R.id.gastText);
            viewHolder.heimToreView   = (TextView) view.findViewById(R.id.heimToreText);
            viewHolder.gastToreView   = (TextView) view.findViewById(R.id.gastToreText);
            viewHolder.zeitOrtView    = (TextView) view.findViewById(R.id.zeitOrtText);
            viewHolder.zusatzView     = (TextView) view.findViewById(R.id.zusatzText);
            view.setTag(viewHolder);
        }

        ViewHolder viewHolder = (ViewHolder) view.getTag();

        Spiel spiel = (Spiel) WorldCupManager.getGameList().get(i);
        Gruppe gruppe = spiel.gruppe;




        viewHolder.gruppeView.setText(gruppe.name);
        Team heim = spiel.heim;
        viewHolder.heimView.setText (heim == null ? spiel.platzhalterHeim : heim.name);
        Team gast = spiel.gast;
        viewHolder.heimView.setText (gast == null ? spiel.platzhalterGast : gast.name);

        viewHolder.heimView.setText(spiel.heim.name);
        viewHolder.gastView.setText(spiel.gast.name);
        viewHolder.heimToreView.setText("" + spiel.toreHeim);
        viewHolder.gastToreView.setText("" + spiel.toreGast);
        viewHolder.zusatzView.setText(spiel.zusatz);

        viewHolder.zeitOrtView.setText(df.format(spiel.anstoss) + " in " + spiel.ort.name);

        Log.d("SpieleAdapter", "Daten: " + viewHolder.gruppeView.getText () + " " + viewHolder.heimView.getText () + " " + viewHolder.gastView.getText () + " " + viewHolder.zeitOrtView.getText () + " " + viewHolder.gruppeView.getText () + " " );

        return view;
    }

    static class ViewHolder {
        public TextView gruppeView;
        public TextView heimView;
        public TextView gastView;
        public TextView heimToreView;
        public TextView gastToreView;
        public TextView zeitOrtView;
        public TextView zusatzView;
    }
}

和相关的xml文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="80dip"
    android:padding="4dip" >

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="4dip"
        android:paddingTop="0dip"
        android:alpha="0.2"
        android:background="@android:color/black">
    </RelativeLayout>


    <TextView
        android:id="@+id/gruppeText"
        android:layout_width="fill_parent"
        android:layout_height="14dip"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:singleLine="true"
        android:text="Gruppe A"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:textStyle="bold"
        android:textSize="10dip"/>

    <TextView
        android:id="@+id/heimText"
        android:layout_width="wrap_content"
        android:layout_below="@id/gruppeText"
        android:layout_height="20dip"
        android:singleLine="true"
        android:text="Heim Team"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:textStyle="bold"
        android:textSize="16dip"/>

    <TextView
        android:id="@+id/heimToreText"
        android:layout_width="wrap_content"
        android:layout_below="@id/gruppeText"
        android:layout_toRightOf="@id/heimText"
        android:layout_height="20dip"
        android:singleLine="true"
        android:text="12"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:gravity="right"
        android:layout_alignParentRight="true"
        android:textStyle="bold"
        android:textSize="16dip"/>

    <TextView
        android:id="@+id/gastText"
        android:layout_width="wrap_content"
        android:layout_below="@id/heimText"
        android:layout_height="20dip"
        android:singleLine="true"
        android:text="Gast Team"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:textStyle="bold"
        android:textSize="16dip"/>

    <TextView
        android:id="@+id/gastToreText"
        android:layout_width="wrap_content"
        android:layout_below="@id/heimText"
        android:layout_toRightOf="@id/gastText"
        android:layout_height="20dip"
        android:singleLine="true"
        android:text="12"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:gravity="right"
        android:layout_alignParentRight="true"
        android:textStyle="bold"
        android:textSize="16dip"/>

    <TextView
        android:id="@+id/zeitOrtText"
        android:layout_width="wrap_content"
        android:layout_below="@id/gastText"
        android:layout_height="14dip"
        android:singleLine="true"
        android:text="Datum, Uhrzeit und Ort"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:textStyle="bold"
        android:textSize="12dip"/>

    <TextView
        android:id="@+id/zusatzText"
        android:layout_width="wrap_content"
        android:layout_below="@id/gastText"
        android:layout_toRightOf="@id/zeitOrtText"
        android:layout_height="14dip"
        android:singleLine="true"
        android:text="12"
        android:textColor="@android:color/white"
        android:alpha="0.5"
        android:gravity="right"
        android:layout_alignParentRight="true"
        android:textStyle="bold"
        android:textSize="12dip"/>


</RelativeLayout>

我目前在Mac上使用Android Studio，如果这有所不同。

编辑以回应Arash的问题：这是设置适配器的片段类。

public class SpieleFragment  extends ListFragment {

    private SpieleAdapter spieleAdapter = null;

    private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            // Get extra data included in the Intent

            //Check UI Thread
            boolean onUiThread = (Looper.myLooper() == Looper.getMainLooper());
            if (onUiThread) {
                Log.d("SpieleFragment", "runs on UI Thread");
            } else {
                Log.d("SpieleFragment", "does not run un UI Thread");
            }

            if (spieleAdapter != null) {
                spieleAdapter.notifyDataSetChanged();
            }
            Log.d("SpieleFragment", "Got message data changed");
        }
    };

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.fragment_spiele, container, false);

        spieleAdapter = new SpieleAdapter(this.getActivity());
        setListAdapter(spieleAdapter);

        LocalBroadcastManager.getInstance(WMApp.getContext()).registerReceiver(mMessageReceiver,
                new IntentFilter(WorldCupManager.UPDATE_EVENT));

        return rootView;
    }

    @Override
    public void onDestroy() {
        // Unregister since the activity is about to be closed.
        // This is somewhat like [[NSNotificationCenter defaultCenter] removeObserver:name:object:]
        LocalBroadcastManager.getInstance(WMApp.getContext()).unregisterReceiver(mMessageReceiver);
        super.onDestroy();
    }

}

Answer 1

我认为你使用了不同的类对象作为参考，所以请参考下面的代码

ViewHolder viewHolder=null;
       if (view == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            view = inflater.inflate(R.layout.zelle_spiel, viewGroup, false);

            viewHolder = new ViewHolder();
            .....
            .....
            view.setTag(viewHolder);
        }else{
           viewHolder = (ViewHolder) view.getTag();
        }

       ......
       ......

Answer 2

我不知道是否存在误解，但您已发布SpieleAdapter，但在ListFragment您已初始化GruppenAdapter

对于List of 64，ListAdapter getView仅被调用一次，注意完全显示

2 个答案: