Question

我正在学习Android应用程序开发，但是我陷入了僵局。我的RecyclerView正在拾取我的String数组中有多少项，但它没有在text1中显示实际数据，任何帮助都会非常感激。

这是我的适配器

public class EventCalenderAdapter extends RecyclerView.Adapter<EventCalenderAdapter.ViewHolder> {

static String[] fakeData = new String[] {
        "One","Two","Three","Four","Five","Ah..Ah..Ah"
};

static class ViewHolder extends RecyclerView.ViewHolder {
    CardView cardView;
    TextView titleView;

    public ViewHolder(CardView card) {
        super(card);
        cardView = card;
        titleView = (TextView) card.findViewById(R.id.text1);
    }
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int i) {
    CardView v = (CardView) LayoutInflater.from(parent.getContext()).inflate(R.layout.event_task, parent, false);
    return new ViewHolder(v);
}

@Override
public void onBindViewHolder(ViewHolder viewHolder, int i) {
    viewHolder.titleView.setText(fakeData[i]);
}

@Override
public int getItemCount() {
    return fakeData.length;
}

这是相应的XML

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:event_view="http://schemas.android.com/apk/res-auto"
android:layout_height="100dp"
android:layout_width="match_parent"
android:id="@+id/event_view"
android:layout_marginTop="@dimen/task_card_half_spacing"
android:layout_marginBottom="@dimen/task_card_half_spacing"
android:layout_marginLeft="@dimen/gutter"
android:layout_marginRight="@dimen/gutter"
android:layout_gravity="center"
android:elevation="@dimen/task_card_elevation"
android:foreground="?android:attr/selectableItemBackground"
event_view:cardCornerRadius="0dp" >

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

<ImageView
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:id="@+id/image"
    android:scaleType="centerCrop"
    android:layout_alignParentLeft="true"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="@android:style/TextAppearance.Medium.Inverse"
    android:id="@+id/text1"
    android:maxLines="1"
    android:ellipsize="end"
    android:padding="10dp"
    android:layout_alignTop="@+id/image"
    android:layout_toRightOf="@+id/image"/>

<TextView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    style="@android:style/TextAppearance.Inverse"
    android:id="@+id/text2"
    android:maxLines="3"
    android:ellipsize="end"
    android:padding="10dp"
    android:layout_alignStart="@+id/text1"
    android:layout_below="@+id/text1"/>


</RelativeLayout>

</android.support.v7.widget.CardView>

这是我的片段

public class EventCalenderFragment extends Fragment {

RecyclerView recyclerView;
EventCalenderAdapter adapter;


public EventCalenderFragment() {
    // Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    adapter = new EventCalenderAdapter();
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    final View v = inflater.inflate(R.layout.fragment_event_calender, container, false);
    recyclerView = (RecyclerView) v.findViewById(R.id.recycler);
    recyclerView.setAdapter(adapter);
    recyclerView.setHasFixedSize(true);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    return v;
}

Answer 1

嗯......一切看起来都不错，你可以试试这个吗：

android:textColor="#000000"

字符串数组数据未在TextView中显示

1 个答案: