Question

当我将recyclerview放入应用程序时，它在我运行时立即崩溃。无论是在myAdapter类中还是在onCreate方法中调用它的方式，我都知道我做错了什么

任何人都可以指出我在代码中出错的地方

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

import com.parse.GetCallback;
import com.parse.ParseFile;
import com.parse.ParseObject;
import com.parse.ParseQuery;

import java.text.ParseException;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
public class myAdapter extends RecyclerView.Adapter<myAdapter.ViewHolder> {
    private LayoutInflater inflater;
    List<Information> data = Collections.emptyList();

    public static class ViewHolder extends RecyclerView.ViewHolder {
        String t;
        String p;
        ParseFile i;
        public ViewHolder(View itemView) {
            super(itemView);
            final ParseQuery<ParseObject> query = ParseQuery.getQuery("Ads");
            query.getInBackground("xWMyZ4YEGZ", new GetCallback<ParseObject>() {
                @Override
                public void done(ParseObject parseObject, com.parse.ParseException e) {
                    if (e == null) {
                        // object will be your game score
                        t = parseObject.getString("title");
                        p = parseObject.getString("price");
                        i = parseObject.getParseFile("adPhoto");
                    } else {
                        // something went wrong
                    }
                }
            });
        }
    }

    public myAdapter(Context context, List<Information> data) {
        inflater = LayoutInflater.from(context);
        this.data = data;
    }

    @Override
    public myAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                                   int viewType) {
        View view = inflater.inflate(R.layout.ads_listing, parent, false);
        ViewHolder holder = new ViewHolder(view);
        return holder;
    }


    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Information current = data.get(position);
        holder.t = current.title;
        holder.p = current.price;
    }

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

这是在mainActivity中调用它的代码

 recyclerView = (RecyclerView) findViewById(R.id.rec);
        adapter = new myAdapter(getApplicationContext(), getData());
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(getApplicationContext()));

这是我的getData方法

 public static List<Information> getData(){
        final List<Information> data = new ArrayList<>();
        ParseQuery<ParseObject> query = ParseQuery.getQuery("GameScore");
        query.getInBackground("xWMyZ4YEGZ", new GetCallback<ParseObject>() {
            @Override
            public void done(ParseObject parseObject, com.parse.ParseException e) {
                if (e == null) {
                   Information current = new Information();
                    current.title = parseObject.getString("title");
                    current.price = parseObject.getString("price");
                    current.image = parseObject.getParseFile("adPhoto");
                    data.add(current);
                } else {
                    // something went wrong
                }
            }
        });
        return data;
    }

这是logcat

04-24 12:52:35.227    5414-5414/com.example.cashmoney.barakah E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.cashmoney.barakah/com.example.cashmoney.barakah.MainActivity}: android.view.InflateException: Binary XML file line #28: Error inflating class RecyclerView
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2225)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
            at android.app.ActivityThread.access$600(ActivityThread.java:144)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1259)

这是包含recyclerview

的xml文件

        <LinearLayout
            android:id="@+id/logo"
            android:layout_width="match_parent"
            android:layout_height="fill_parent"
            android:weightSum="8"
            android:orientation="vertical">
            <RecyclerView
                android:id="@+id/rec"
                android:layout_width="match_parent"
                android:layout_height="match_parent"></RecyclerView>
            </LinearLayout>

请有人在这里指导我，我迷路了

Answer 1

使用RecyclerView在xml中以完整包名称查看：

           <android.support.v7.widget.RecyclerView
            android:id="@+id/rec"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

Answer 2

RecyclerView layout,使用：

<android.support.v7.widget.RecyclerView                
    android:id="@+id/rec"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    />

当我设置recyclerview时，应用程序崩溃了

2 个答案: