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我已在我的导航抽屉中成功实施cardview and recycleview。现在的问题是，当我点击我的第一个卡片视图，将我带到我的第一个片段，然后按回，我的卡片视图不在我的列表选项卡（第一个片段）了。唯一的选项查看cardviews列表是再次滑动到我的导航抽屉并单击第一个片段查看cardview。背面按下后不会显示Cardviews
这里是我的代码为 RecyclerViewAdapter.class
package com.example.guitarista.citem.Exhibitor;
import android.content.Context;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.CardView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.guitarista.citem.Gallery_SpringForward.GalleryFragment;
import com.example.guitarista.citem.Gallery_activity.GalleryActivity;
import com.example.guitarista.citem.R;
import java.util.List;
/**
* Created by smdojt on 1/24/2017.
*/
public class TabInt_RV_Adapter extends RecyclerView.Adapter<TabInt_RV_Adapter.ItemViewHolder> {
public static class ItemViewHolder extends RecyclerView.ViewHolder {
static CardView cv;
TextView itemName;
TextView itemCathegory;
ImageView itemPhoto;
ItemViewHolder(View itemView) {
super(itemView);
cv = (CardView)itemView.findViewById(R.id.cv);
itemName = (TextView) itemView.findViewById(R.id.item_name);
itemCathegory = (TextView) itemView.findViewById(R.id.item_cathegory);
itemPhoto = (ImageView) itemView.findViewById(R.id.item_photo);
}
}
List<Exhibitors_Int> items;
Context context;
TabInt_RV_Adapter(List<Exhibitors_Int> items, Context context) {
this.context = context;
this.items = items;
}
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
}
@Override
public ItemViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.fragment_exhibitor_tabint_item, viewGroup, false);
ItemViewHolder ivh = new ItemViewHolder(v);
return ivh;
}
@Override
public void onBindViewHolder(ItemViewHolder itemViewHolder, final int i) {
itemViewHolder.cv.setOnClickListener(null);
itemViewHolder.itemName.setText(items.get(i).name);
itemViewHolder.itemCathegory.setText(items.get(i).cathegory);
itemViewHolder.itemPhoto.setImageResource(items.get(i).photoId);
ItemViewHolder.cv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (i == 1) {
//Toast.makeText(context, "Index position is 1", Toast.LENGTH_SHORT).show();
Intent intent = new Intent (context, GalleryActivity.class);
context.startActivity(intent);
}
else if (i == 2) {
//Toast.makeText(context, "Index position is 2 ", Toast.LENGTH_SHORT).show();
AppCompatActivity activity = (AppCompatActivity) v.getContext();
GalleryFragment gf = new GalleryFragment();
activity.getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, gf).addToBackStack(null).commit();
}
}
});
}
@Override
public int getItemCount() {
return items.size();
}
}
通知说我的onClick，有画廊的两个版本。第一个是原始活动，第二个是为片段实施的。
所以当我点击第一个，然后再按一下，cardviews将显示。现在最新的问题是什么？当我点击图库的活动版本时，我无法滑动浏览抽屉。
在我点击第二个cardview实现片段时，导航抽屉刷卡在画廊内部工作，但是当我按回时，cardview列表不会显示。
即使当我把这些代码的片段：
GalleryFragment fr = new GalleryFragment();
Bundle args = new Bundle();
fr.setArguments(args);
FragmentManager fm = getFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
fragmentTransaction.replace(R.id.fragment_container, fr);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
我就甚至得到一个错误的getFragmentManager（）;
有没有其他办法可以解决这个问题？
CODE FOR CARDVIEWS
package com.example.guitarista.citem.Exhibitor;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.guitarista.citem.R;
import java.util.ArrayList;
import java.util.List;
/**
* A simple {@link Fragment} subclass.
*/
public class TabInternationalFragment extends Fragment {
private List<Exhibitors_Int> items;
private RecyclerView rv;
public TabInternationalFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.fragment_exhibitor_tab_international, container, false);
rv=(RecyclerView)v.findViewById(R.id.rv);
LinearLayoutManager llm = new LinearLayoutManager(getActivity());
rv.setLayoutManager(llm);
//GridLayoutManager glm = new GridLayoutManager(getActivity(), 4);
//rv.setLayoutManager(glm);
rv.setHasFixedSize(true);
initializeData();
initializeAdapter();
return v;
}
private void initializeData() {
items = new ArrayList<>();
items.add(new Exhibitors_Int("A. GARCIA CRAFTS", "FURNITURE", R.drawable.image1));
items.add(new Exhibitors_Int("BALEX BOXES", "HOLIDAY DECORATION", R.drawable.image2));
items.add(new Exhibitors_Int("CAGAYAN DE ORO HANDMADE PAPER", "HOME DECOR/HOUSEWARE", R.drawable.image3));
}
private void initializeAdapter(){
TabInt_RV_Adapter adapter = new TabInt_RV_Adapter(items, getContext());
rv.setAdapter(adapter);
}
}
在此处张贴您的片段代码 – Pehlaj
画廊片段或用于构建这些片段的主要片段？ – SovietSenpai
是的，你正在显示卡片视图的片段 – Pehlaj