Question

我刚刚开始学习android和java。我想通过利用Android Studio的自动生成功能使用底部导航和recyclerview制作示例（因此片段中使用了recyclerview）。

在我更改项目的类（从自动生成的DummyContent到我制作的类）之前，一切工作都很顺利。但是更改类后，它在屏幕上不会显示任何项目。

这是什么问题？这是我的代码。

StoreFragment.java

public interface OnListFragmentInteractionListener {
    void onListFragmentInteraction(Store.StoreInfo item);
}

MainActivity.java

    @Override
public void onListFragmentInteraction(Store.StoreInfo item){
}

MyStoreRecyclerViewAdater.java

    @Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
    holder.mItem = mValues.get(position);

    holder.mNameView.setText(mValues.get(position).name);
    holder.mFeatureView.setText(mValues.get(position).feature);
    holder.mAddressView.setText(mValues.get(position).address);

    holder.mView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (null != mListener) {
                //Click Event
                mListener.onListFragmentInteraction(holder.mItem);
            }
        }
    });
}

...

public class ViewHolder extends RecyclerView.ViewHolder {
    public final View mView;

    public final TextView mNameView;
    public final TextView mFeatureView;
    public final TextView mAddressView;

    public Store.StoreInfo mItem;

    public ViewHolder(View view) {
        super(view);

        mView = view;

        mNameView = (TextView) view.findViewById(R.id.item_name);
        mFeatureView = (TextView) view.findViewById(R.id.item_feature);
        mAddressView = (TextView) view.findViewById(R.id.item_address);
    }

Store.java

public class Store {

public static final List<StoreInfo> items = new ArrayList<StoreInfo>();

public Store(){

    addItem(new StoreInfo("name0","feature0","address0"));
    addItem(new StoreInfo("name1", "feature1", "address1"));
    addItem(new StoreInfo("name2", "feature2","address2"));

}

private static void addItem(StoreInfo item){
    items.add(item);
}

public static class StoreInfo{
    public String name;
    public String feature;
    public String address;

    public StoreInfo(String name, String feature, String address) {
        this.name = name;
        this.feature = feature;
        this.address = address;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getFeature() {
        return feature;
    }

    public void setFeature(String feature) {
        this.feature = feature;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

}

}

Android recyclerview不加载项目

0 个答案: