android.view.InflateException：二进制XML文件第8行：二进制XML文件第8行：错误膨胀了类android.support.v7.widget.CardView

Question

  

android.view.InflateException：二进制XML文件行＃8：二进制XML   文件行＃8：膨胀类android.support.v7.widget.CardView时出错       原因：android.view.InflateException：二进制XML文件第8行：错误膨胀了类android.support.v7.widget.CardView       原因：java.lang.ClassNotFoundException：在路径：DexPathList [[zip文件]中找不到类“ android.support.v7.widget.CardView”   zip文件“ /system/framework/org.apache.http.legacy.boot.jar”   “ /data/app/com.hfad.bitsandpizzas-pFsCVGHBTBShhdbfE75xtw==/base.apk"],nativeLibraryDirectories=[/data/app/com.hfad.bitsandpizzas-pFsCVGHBTBShhdbfE75xtw==/lib/x86，   / system / lib]]           在dalvik.system.BaseDexClassLoader.findClass（BaseDexClassLoader.java:134）           在java.lang.ClassLoader.loadClass（ClassLoader.java:379）           在java.lang.ClassLoader.loadClass（ClassLoader.java:312）           在android.view.LayoutInflater.createView（LayoutInflater.java:606）           在android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:790）           在android.view.LayoutInflater.createViewFromTag（LayoutInflater.java:730）           在android.view.LayoutInflater.rInflate（LayoutInflater.java:863）           在android.view.LayoutInflater.rInflateChildren（LayoutInflater.java:824）           在android.view.LayoutInflater.inflate（LayoutInflater.java:515）           在android.view.LayoutInflater.inflate（LayoutInflater.java:423）           在com.hfad.bitsandpizzas.data.NearbyGreetRecyclerViewAdapter.onCreateViewHolder（NearbyGreetRecyclerViewAdapter.java:39）           在com.hfad.bitsandpizzas.data.NearbyGreetRecyclerViewAdapter.onCreateViewHolder（NearbyGreetRecyclerViewAdapter.java:25）           在android.support.v7.widget.RecyclerView $ Adapter.createViewHolder（RecyclerView.java:6411）           在android.support.v7.widget.RecyclerView $ Recycler.tryGetViewHolderForPositionByDeadline（RecyclerView.java:5597）           在android.support.v7.widget.RecyclerView $ Recycler.getViewForPosition（RecyclerView.java:5482）           在android.support.v7.widget.RecyclerView $ Recycler.getViewForPosition（RecyclerView.java:5478）           在android.support.v7.widget.LinearLayoutManager $ LayoutState.next（LinearLayoutManager.java:2215）           在android.support.v7.widget.LinearLayoutManager.layoutChunk（LinearLayoutManager.java:1542）           在android.support.v7.widget.LinearLayoutManager.fill（LinearLayoutManager.java:1502）           在android.support.v7.widget.LinearLayoutManager.onLayoutChildren（LinearLayoutManager.java:595）           在android.support.v7.widget.RecyclerView.dispatchLayoutStep2（RecyclerView.java:3625）           在android.support.v7.widget.RecyclerView.dispatchLayout（RecyclerView.java:3354）           在android.support.v7.widget.RecyclerView.onLayout（RecyclerView.java:3886）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.support.constraint.ConstraintLayout.onLayout（ConstraintLayout.java:1197）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.support.v4.view.ViewPager.onLayout（ViewPager.java:1766）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.support.design.widget.HeaderScrollingViewBehavior.layoutChild（HeaderScrollingViewBehavior.java:131）           在android.support.design.widget.ViewOffsetBehavior.onLayoutChild（ViewOffsetBehavior.java:42）           在android.support.design.widget.AppBarLayout $ ScrollingViewBehavior.onLayoutChild（AppBarLayout.java:1389）           在android.support.design.widget.CoordinatorLayout.onLayout（CoordinatorLayout.java:868）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.widget.FrameLayout.layoutChildren（FrameLayout.java:323）           在android.widget.FrameLayout.onLayout（FrameLayout.java:261）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.widget.LinearLayout.setChildFrame（LinearLayout.java:1812）           在android.widget.LinearLayout.layoutVertical（LinearLayout.java:1656）   2018-11-03 20：17：21.037 7084-7084 / com.hfad.bitsandpizzas   E / AndroidRuntime：位于   android.widget.LinearLayout.onLayout（LinearLayout.java:1565）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.widget.FrameLayout.layoutChildren（FrameLayout.java:323）           在android.widget.FrameLayout.onLayout（FrameLayout.java:261）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.widget.LinearLayout.setChildFrame（LinearLayout.java:1812）           在android.widget.LinearLayout.layoutVertical（LinearLayout.java:1656）           在android.widget.LinearLayout.onLayout（LinearLayout.java:1565）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.widget.FrameLayout.layoutChildren（FrameLayout.java:323）           在android.widget.FrameLayout.onLayout（FrameLayout.java:261）           在com.android.internal.policy.DecorView.onLayout（DecorView.java:753）           在android.view.View.layout（View.java:20672）           在android.view.ViewGroup.layout（ViewGroup.java:6194）           在android.view.ViewRootImpl.performLayout（ViewRootImpl.java:2792）           在android.view.ViewRootImpl.performTraversals（ViewRootImpl.java:2319）           在android.view.ViewRootImpl.doTraversal（ViewRootImpl.java:1460）           在android.view.ViewRootImpl $ TraversalRunnable.run（ViewRootImpl.java:7183）           在android.view.Choreographer $ CallbackRecord.run（Choreographer.java:949）           在android.view.Choreographer.doCallbacks（Choreographer.java:761）           在android.view.Choreographer.doFrame（Choreographer.java:696）           在android.view.Choreographer $ FrameDisplayEventReceiver.run（Choreographer.java:935）           在android.os.Handler.handleCallback（Handler.java:873）           在android.os.Handler.dispatchMessage（Handler.java:99）           在android.os.Looper.loop（Looper.java:193）           在android.app.ActivityThread.main（ActivityThread.java:6669）           在java.lang.reflect.Method.invoke（本机方法）           在com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:493）           在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:858）

GreetFragment

package com.hfad.bitsandpizzas;


import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.ListFragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import com.android.volley.AuthFailureError;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import com.hfad.bitsandpizzas.Util.Constants;
import com.hfad.bitsandpizzas.Util.MapJSONToModel;
import com.hfad.bitsandpizzas.data.NearbyGreetRecyclerViewAdapter;
import com.hfad.bitsandpizzas.model.Gang;
import com.hfad.bitsandpizzas.model.Greet;
import com.hfad.bitsandpizzas.model.NearbyGreet;
import com.hfad.bitsandpizzas.model.User;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


/**
 * A simple {@link Fragment} subclass.
 */
public class GreetFragment extends Fragment {

    private RecyclerView recyclerView;
    private NearbyGreetRecyclerViewAdapter nearbyGreetRecyclerViewAdapter;
    private List<NearbyGreet> nearbyGreets = new ArrayList<>();
    private RequestQueue queue;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_greets, container, false);

        queue = Volley.newRequestQueue(inflater.getContext());

        recyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerView);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(new LinearLayoutManager(inflater.getContext()));

        nearbyGreets = getNearbyGreets();

        nearbyGreetRecyclerViewAdapter = new NearbyGreetRecyclerViewAdapter(inflater.getContext(), nearbyGreets);
        recyclerView.setAdapter(nearbyGreetRecyclerViewAdapter);
        nearbyGreetRecyclerViewAdapter.notifyDataSetChanged();


        return rootView;
    }

    //Get movies
    public List<NearbyGreet> getNearbyGreets() {
        nearbyGreets.clear();

        JsonArrayRequest jsonObjectRequest = new JsonArrayRequest(Request.Method.GET,
                Constants.URL, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {

                try {
                    for (int i = 0; i < response.length(); i++) {
                        JSONObject parent = response.getJSONObject(i);

                        JSONObject greetJSON = parent.getJSONObject("greet");
                        Greet greet = MapJSONToModel.mapJSONToGreet(greetJSON);

                        JSONObject userJSON = greetJSON.getJSONObject("user");
                        User user = MapJSONToModel.mapJSONToUser(userJSON);
                        greet.setUser(user);

                        if (greetJSON.has("gang") && !greetJSON.isNull("gang")) {
                            JSONObject gangJSON = greetJSON.getJSONObject("gang");
                            Gang gang = MapJSONToModel.mapJSONToGang(gangJSON);
                            greet.setGang(gang);
                        }

                        NearbyGreet nearbyGreet = new NearbyGreet();
                        nearbyGreet.setGreet(greet);
                        nearbyGreet.setDistance(BigDecimal.valueOf(parent.getDouble("distance")));

                        nearbyGreets.add(nearbyGreet);
                    }

                    nearbyGreetRecyclerViewAdapter.notifyDataSetChanged();
                } catch (JSONException e) {
                    e.printStackTrace();
                }


            }
        }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {


            }
        }) {
            @Override
            public Map<String, String> getHeaders() throws AuthFailureError {
                Map<String, String> params = new HashMap<>();
                params.put("Content-Type", "application/json");
                params.put("Authorization", "Bearer eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiJhZG1pbiIsImF1dGgiOiJST0xFX0FETUlOLFJPTEVfVVNFUiIsImV4cCI6MTU0Mzg0ODExM30.Hj4b3kvZvg_XpRGqYGWrIfZVv3Cnt5kwHXG1YdSdhCga_BXuP_BLFAR3eLB1gU3q6-QLqTAuyrCAmEHSY3Fgiw");
                return params;
            }
            @Override
            public String getBodyContentType() {
                return "application/json; charset=utf-8";
            }
        };

        queue.add(jsonObjectRequest);

        return nearbyGreets;
    }
}

NearbyGreetRecyclerViewAdapter

package com.hfad.bitsandpizzas.data;

import android.content.Context;
import android.content.Intent;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.hfad.bitsandpizzas.R;
import com.hfad.bitsandpizzas.model.Greet;
import com.hfad.bitsandpizzas.model.NearbyGreet;
import com.squareup.picasso.Picasso;

import java.util.List;

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

    private Context context;
    private List<NearbyGreet> nearbyGreets;

    public NearbyGreetRecyclerViewAdapter(Context context, List<NearbyGreet> nearbyGreets) {
        this.context = context;
        this.nearbyGreets = nearbyGreets;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.greet_row, parent, false);

        return new ViewHolder(view, context);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        NearbyGreet nearbyGreet = nearbyGreets.get(position);

        holder.title.setText(nearbyGreet.getGreet().getTitle());
        Log.e("hehy", String.valueOf(nearbyGreets.size()));
    }

    @Override
    public int getItemCount() {
        return nearbyGreets.size();
    }

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

        TextView title;

        public ViewHolder(View itemView, final Context ctx) {
            super(itemView);
            context = ctx;

            title = (TextView) itemView.findViewById(R.id.greetTitleID);

            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

                  //  Movie movie = movieList.get(getAdapterPosition());

                    //Intent intent = new Intent(context, MovieDetailActivity.class);

                    //intent.putExtra("movie", movie);
                    //ctx.startActivity(intent);

                }
            });

        }

        @Override
        public void onClick(View v) {

        }
    }
}

Answer 1

确保将cardview-v7依赖项添加到build.gradle中。

build.gradle

dependencies {
    // Other dependencies ...
    implementation "com.android.support:cardview-v7:28.0.0"
}