问题描述
我正在尝试在另一个RecyclerView中实现水平滚动的RecyclerView,这意味着父RecyclerView中的父RecyclerView(垂直滚动)和子RecyclerView(水平滚动).我提到了几个与此要求有关的问题,并从该问题中找到了更好的解决方案并成功实现.子适配器的布局文件编辑后,将禁用子RecyclerView的滚动.
I am trying to implement a horizontal scrolling RecyclerView inside an another RecyclerView which means parent RecyclerView(vertical scroll) and child RecyclerView(Horizontal scroll) inside parent RecyclerView. I referred couple of questions regarding this requirement and found a better solution from this question How to have a ListView/RecyclerView inside a parent RecyclerView? and implemented successfully.After the child adapter's layout file edit the child RecyclerView's scrolling disabled.
这是我的验证码,这是父片段.
here are my codes,this is the parent fragment.
public class MarketFragment extends Fragment {
private String log = "abcpappaHomeFragment";
private Button loadMore ;
private ArrayList<ProductCategoryBean> productCategoryList=null;
private ProductCategoryService productCategoryService;
private RecyclerView.Adapter mAdapter;
private RecyclerView mRecyclerView;
private LinearLayoutManager mLayoutManager;
public MarketFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
productCategoryService = new ProductCategoryService();
productCategoryList =(ArrayList<ProductCategoryBean>)productCategoryService.getAllCategories();
View rootView = inflater.inflate(R.layout.market_fragment, container, false);
mRecyclerView = (RecyclerView)rootView.findViewById(R.id.market_recycle_list);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new LinearLayoutManager(getContext());
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new MarketRecyclerAdapter(getContext(),productCategoryList,this);
mRecyclerView.setAdapter(mAdapter);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
}
@Override
public void onDetach() {
super.onDetach();
}
}
这是LayoutFile
this is LayoutFile
<?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"
xmlns:tools="http://schemas.android.com/tools"
tools:context="bodhiinfo.abcpappa.activity.MarketFragment">>
<android.support.v7.widget.RecyclerView
android:id="@+id/market_recycle_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp" />
父级RecyclerView的适配器类
adapter class for parent RecyclerView
public class MarketRecyclerAdapter extends RecyclerView.Adapter<MarketRecyclerAdapter.ViewHolder> {
private Context context;
private List<ProductCategoryBean> productCategoryList=null;
private List<ProductBean> productDetailList=null;
private RecyclerView.Adapter mAdapter;
public MarketFragment marketFragment;
// private marketList
public MarketRecyclerAdapter(Context context,List<ProductCategoryBean> productCategoryList,MarketFragment marketFragment){
this.context = context;
this.productCategoryList =(ArrayList<ProductCategoryBean>) productCategoryList;
this.marketFragment = marketFragment;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.market_fragment_row, parent, false);
ViewHolder viewHolder = new ViewHolder(v,context);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int position) {
ProductCategoryBean productCategoryBean =(ProductCategoryBean)productCategoryList.get(position);
viewHolder.product_category_name_id.setText(productCategoryBean.getUtxt_product_category());
ProductService productService = new ProductService();
productDetailList = (ArrayList<ProductBean>)productService.getProductDetailsByCategoryId(productCategoryBean.getPki_product_category_id()+"");
viewHolder.product_recycle_list.setHasFixedSize(false);
viewHolder.mLayoutManager = new ChildCustomLinearLayoutManager(context,LinearLayoutManager.HORIZONTAL,false);
viewHolder.product_recycle_list.setLayoutManager(viewHolder.mLayoutManager);
mAdapter = new MarketRowRecyclerAdapter(context,productDetailList);
viewHolder.product_recycle_list.setAdapter(mAdapter);
}
@Override
public int getItemCount() {
return productCategoryList.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder{
public TextView product_category_name_id;
public RecyclerView product_recycle_list;
public ChildCustomLinearLayoutManager mLayoutManager;
public Context context;
public View view;
public ClipData.Item currentItem;
public ViewHolder(final View itemView,final Context context) {
super(itemView);
this.context = context;
product_category_name_id = (TextView)itemView.findViewById(R.id.product_category_name_id);
product_recycle_list =(RecyclerView)itemView.findViewById(R.id.product_recycle_list);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
}
}
}
父级RecyclerView适配器的布局
layout of parent RecyclerView adapter
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="bodhiinfo.abcpappa.activity.MarketFragment">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- linear layout for market heading row-->
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/market_heading_raw"
android:layout_marginTop="25dp">
<TextView
android:id="@+id/product_category_name_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/market_heading"
android:layout_weight="0.7"
android:layout_gravity="left"
android:gravity="left"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="View More.."
android:layout_weight="0.3"
android:layout_gravity="right"
android:gravity="right"
/>
</LinearLayout>
<android.support.v7.widget.RecyclerView
android:id="@+id/product_recycle_list"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</RelativeLayout>
儿童RecyclerView适配器
child RecyclerView adapter
public class MarketRowRecyclerAdapter extends RecyclerView.Adapter<MarketRowRecyclerAdapter.ViewHolder> {
private List<ProductBean> productList;
private Context context;
MarketRowRecyclerAdapter(Context context,List<ProductBean> productList){
this.productList =(ArrayList<ProductBean>)productList;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.market_product_image_view, parent, false);
ViewHolder viewHolder = new ViewHolder(v,context);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int position) {
ProductBean productBean=(ProductBean)productList.get(position);
ImageCacheManager imageCacheManager= ImageCacheManager.INSTANCE;
ImageLoader imageLoader=imageCacheManager.getImageLoader();
viewHolder.market_product_image_id.setImageUrl("http://www.ps4home.com/wp-content/uploads/2013/10/Mad-Catz-F.R.E.Q.5-Headset-for-PC-and-Mac-Black.jpg", imageLoader);
viewHolder.product_text_id.setText(productBean.getTxt_product_name());
viewHolder.product_actual_price_id.setText("Rs :"+productBean.getTxt_product_actual_price());
viewHolder.product_actual_price_id.setPaintFlags(viewHolder.product_actual_price_id.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
viewHolder.product_app_price_id.setText("Rs :" + productBean.getTxt_product_price_in_app());
}
@Override
public int getItemCount() {
return productList.size();
}
public static class ViewHolder extends RecyclerView.ViewHolder{
public TextView product_text_id;
public TextView product_actual_price_id;
public TextView product_app_price_id;
public NetworkImageView market_product_image_id;
public Context context;
public View view;
public ViewHolder(final View itemView,final Context context) {
super(itemView);
this.context = context;
product_text_id = (TextView)itemView.findViewById(R.id.product_text_id);
product_actual_price_id= (TextView)itemView.findViewById(R.id.product_actual_price_id);
product_app_price_id= (TextView)itemView.findViewById(R.id.product_app_price_id);
market_product_image_id = (NetworkImageView)itemView.findViewById(R.id.market_product_image_id);
itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
}
}
}
子适配器布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingRight="10dp"
android:paddingLeft="10dp"
tools:context="bodhiinfo.abcpappa.activity.MarketFragment">
<FrameLayout
android:id="@+id/market_product1_image_frame_id"
android:layout_width="150dp"
android:layout_height="150dp">
<com.android.volley.toolbox.NetworkImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/market_product_image_id"/>
<TextView
android:id="@+id/product_text_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@color/text_light"
android:layout_gravity="bottom"
android:text="@string/product_one"
android:background="@drawable/textbackgrounds"/>
</FrameLayout>
<TextView
android:id="@+id/product_actual_price_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textColor="@color/text_dark_black"
android:text="@string/product_one"
android:layout_below="@+id/market_product1_image_frame_id"/>
<TextView
android:id="@+id/product_app_price_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/product_one"
android:textColor="@color/text_dark_black"
android:layout_below="@+id/product_actual_price_id"/>
</LinearLayout>
ChildCustomLinearLayoutManager与上述问题中pptang提供的类相同.其实我是android的新手,如果您遇到这种问题,请让我知道我所做的错误.谢谢大家.
ChildCustomLinearLayoutManager is the same class that provided by pptang in above mentioned question.Actually I am newbie in android,If you ever crossover this kind of problem let me know the mistake that I have done . Thank you all.
推荐答案
如果wrap_content且未设置明确的最小高度,RecyclerView会根据其子视图调整自身大小.在您的孩子RecyclerView中,您必须考虑以下更改
RecyclerView sizes itself based on its child views if wrap_content and no explicit minimum height has been set.In your child RecyclerView you have to consider change as follows
<android.support.v7.widget.RecyclerView
android:id="@+id/product_recycle_list"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
您正在使用卧式recyclerView,因此请设置
you are using horizontal recyclerView so set the
如果您想了解更多有关此问题的信息,请访问 https ://code.google.com/p/android/issues/detail?id = 74772 它会为您提供帮助.
this will works if you want to know more about this problem visit https://code.google.com/p/android/issues/detail?id=74772it will help you.
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