values资源之array和RecyclerView的使用

一。项目values目录下array.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <array name="main_module">        <!--<item>@string/collection</item>-->        <item>@string/pre_authorization</item>        <item>@string/balance_query</item>        <item>@string/transaction_query</item>        <item>@string/print</item>        <item>@string/sign_logon</item>        <item>@string/sign_logout</item>        <item>@string/revoke</item>        <item>@string/qr_revoke</item>        <item>@string/refunds</item>    </array>

<!-- 这个没用，只是说明可以添加多个组 -->    <array name="pre_authorization">        <item>@string/pre_authorization</item>        <item>@string/pre_authorization_revoke</item>        <item>@string/pre_authorization_complete</item>        <item>@string/pre_authorization_complete_revoke</item>    </array></resources>

values目录下string.xml

<resources>

<string name="pre_authorization">预授权</string>

<string name="balance_query">余额查询</string>

<string name="transaction_query">交易查询</string>

<string name="print">打印</string>

<string name="sign_logon">签到</string>

<string name="sign_logout">签退</string>

<string name="revoke">撤销</string>

<string name="qr_revoke">二维码撤销</string>

<string name="refunds">消费退货</string>

</resources>

MainActivity的布局

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent">    <android.support.v7.widget.RecyclerView        android:id="@+id/recycler_main"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_marginTop="@dimen/space_2" /></RelativeLayout>

在代码里的调用，使用：

@Bind(R.id.recycler_main)//此处用的注解，也可以findViewById()...RecyclerView recyclerMain;

public void initData() {
List<IndexEntity> itemList = new ArrayList<>();String[] nameList = getResources().getStringArray(R.array.main_module);for (String name : nameList) {    if ((getString(R.string.pre_authorization)).equals(name)) {
//icon_pre_authorization是资源图片的名        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_pre_authorization"), name));    }    if (getString(R.string.balance_query).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_balance_query"), name));    }    if (getString(R.string.transaction_query).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_transaction_query"), name));    }    if (getString(R.string.print).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_print"), name));    }    if (getString(R.string.sign_logon).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_pos_logon"), name));    }    if (getString(R.string.sign_logout).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_pos_logout"), name));    }    if (getString(R.string.revoke).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_revoke"), name));    }    if (getString(R.string.qr_revoke).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_qr_revoke"), name));    }    if (getString(R.string.refunds).equals(name)) {        itemList.add(new IndexEntity(Tools.getDrawableId(getActivity(), "icon_refunds"), name));    }}
 IndexAdapter adapter = new IndexAdapter(itemList);        adapter.setOnItemClickListener(this);        GridLayoutManager manager = new GridLayoutManager(getActivity(), 3);//        recyclerMain.addItemDecoration(new SpaceItemDecoration(Constants.SPACINGINPIXELS));        recyclerMain.setLayoutManager(manager);        recyclerMain.setAdapter(adapter);

}

public class Tools {

/** * 获取图片地址 */public static int getDrawableId(Context context, String name) {    return context.getResources().getIdentifier(name, "drawable", context.getPackageName());//"com.pax.usdk"}

}

public class IndexAdapter extends RecyclerView.Adapter {    private List<IndexEntity> itemList;    private OnItemClickListener onItemClickListener;    public IndexAdapter(List<IndexEntity> itemList) {        this.itemList = itemList;    }    @Override    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_index, parent, false);//        int bodyHeight = (int) (Tools.getScreenHeight(parent.getContext()) * (1 - 0.05 - 0.214 - 0.071));//        if (view.getLayoutParams() != null)//            view.getLayoutParams().height = (int) (bodyHeight / (16.4 * 3 + 17.6) * 16.4);        return new PreViewHolder(view);    }    @Override    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {        PreViewHolder viewHolder = (PreViewHolder) holder;        IndexEntity entity = itemList.get(position);        viewHolder.imvPreImg.setBackgroundResource(entity.getItemImgPath());        viewHolder.tvPreName.setText(entity.getItemName());        viewHolder.itemView.setOnClickListener(v -> {                    if (onItemClickListener != null)                        onItemClickListener.onItemClick(position);                }        );    }    @Override    public int getItemCount() {        return itemList != null ? itemList.size() : 0;    }    class PreViewHolder extends RecyclerView.ViewHolder {        @Bind(R.id.imv_index_image)        ImageView imvPreImg;        @Bind(R.id.tv_index_name)        TextView tvPreName;        PreViewHolder(View itemView) {            super(itemView);            ButterKnife.bind(this, itemView);        }    }    //点击事件接口    public interface OnItemClickListener {        void onItemClick(int position);    }    public void setOnItemClickListener(OnItemClickListener onItemClickListener) {        this.onItemClickListener = onItemClickListener;    }}

public class IndexEntity {    private int itemImgPath;    private String itemName;    public IndexEntity() {    }    public IndexEntity(int itemImgPath, String itemName) {        this.itemImgPath = itemImgPath;        this.itemName = itemName;    }    public int getItemImgPath() {        return itemImgPath;    }    public void setItemImgPath(int itemImgPath) {        this.itemImgPath = itemImgPath;    }    public String getItemName() {        return itemName;    }    public void setItemName(String itemName) {        this.itemName = itemName;    }}