当单击回收即可项目时，如何将数据输入WebView活动

Question

这是适配器类

package com.example.murarilal.xyz;
import android.content.Context;
import android.content.Intent;
import android.support.v7.widget.RecyclerView;
import android.util.EventLogTags;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.squareup.picasso.Picasso;
import java.util.List;
/**
 * Created by Murarilal on 19-11-2017.
 */
     class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder>{
            private List<ListItem> listItems;
            private Context context;
        public MyAdapter(List<ListItem> listItems, Context context) {
            this.listItems = listItems;
            this.context = context;
        }
        @Override
        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View v= LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item,parent,false);
            return new ViewHolder(v);
        }
        @Override
        public void onBindViewHolder(ViewHolder holder, int position) {
            ListItem listItem=listItems.get(position);
            holder.headText.setText(listItem.getHead());
            holder.desText.setText(listItem.getDes());
            holder.linearLayout.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {

                    Intent intent=new Intent(context,ArticleActivity.class);
                    intent.putExtra("description",);
                    context.startActivity(intent);
                }
            });
          // Picasso.with(context).load(R.drawable.netfix).resize(900,300).into(holder.imageView);
        }
        @Override
        public int getItemCount() {
            return listItems.size();
        }
        public class ViewHolder extends RecyclerView.ViewHolder{
                public  TextView headText;
                public  TextView desText;
            public LinearLayout linearLayout;
                //public ImageView imageView;
            public ViewHolder(View itemView) {
                super(itemView);
                headText=(TextView) itemView.findViewById(R.id.heading);
                desText=(TextView) itemView.findViewById(R.id.description);
              //  imageView= (ImageView) itemView.findViewById(R.id.imageView);
                    linearLayout=(LinearLayout)itemView.findViewById(R.id.linearlayout);
            }
        }
    }

这是主要活动

package com.example.murarilal.xyz;
import android.app.DownloadManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.ViewGroup;
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.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
    RecyclerView recyclerView;
    RecyclerView.Adapter adapter;
    public List<ListItem>listItems;
    RequestQueue queue;
    private String url="https://newsapi.org/v2/top-headlines?sources=techcrunch&apiKey=d6eaad863cc640a7a6864d18196bea9e";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        queue= Volley.newRequestQueue(this);
       recyclerView=(RecyclerView)findViewById(R.id.recyclerview);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.addItemDecoration(new Dec(20));
        listItems=new ArrayList<>();
        home();


    }
    public void home()
    {
        JsonObjectRequest request =new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
            @Override
            public void onResponse(JSONObject response) {
                try {
                    JSONObject obj = new JSONObject(String.valueOf(response));
                    JSONArray array = obj.getJSONArray("articles");
                    for (int i=0;i<array.length();i++) {
                        JSONObject o = array.getJSONObject(i);
                        ListItem item =new ListItem(o.getString("title"),o.getString("description"));
                        listItems.add(item);
                    }
                    adapter=new MyAdapter(listItems,getApplicationContext());
                    recyclerView.setAdapter(adapter);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
                , new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                error.printStackTrace();
            }
        });
        queue.add(request);
    }
}

ListItem活动

package com.example.murarilal.xyz;
/**
 * Created by Murarilal on 19-11-2017.
 */
public class ListItem {

     public String head;
     public String des;
    //private String image;

    public ListItem(String head, String des) {
        this.head=head;
     //  this.image=image;
        this.des=des;
    }

    public String getHead() {
        return head;
    }
    public String getDes() {
        return des;
    }

  /* public String getImage() {
        return image;
    }*/
}

我应该在Myadpater类中的onclicklistener中传递哪些字符串，以在WebView中获取描述数据。与description的putextra方法中应通过的字符串。使用API和JSON。

Answer 1

从适配器获取数据后

以您要发送并添加或设置所需属性的对象的实例：

//ListItem listItem = new ListItem();
ListItem listItem = listItems.get(position);

然后在要发送时将额外的类似于下面的内容：

Intent intent=new Intent(context, ArticleActivity.class);
intent.putExtra("listItem", listItem);
context.startActivity(intent);

以您的关节化方法检索它，以获取那些额外的东西：

ListItem listItem = (ListItem) getIntent().getSerializableExtra("listItem");

在这里您可以从该ListItem对象获取所有属性

例如获取描述：

String description = listItem.getDes();

，请注意，您的课程应序列化：

class ListItem implements Serializable {
} 

希望它有帮助。

Answer 2

@Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        ListItem listItem=listItems.get(position);
        holder.headText.setText(listItem.getHead());
        holder.desText.setText(listItem.getDes());
        holder.linearLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent intent=new Intent(context,ArticleActivity.class);
                intent.putExtra("description",);
                context.startActivity(intent);
            }
        });
      // Picasso.with(context).load(R.drawable.netfix).resize(900,300).into(holder.imageView);
    }

在这里您有intent.putExtra("description",);，可以像此intent.putExtra("description", listItem.getDes());一样通过listItem.getDes()，而ListItem listItem=(ListItem) listItems.get(position);此行可能需要铸造。

最后是

@Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        ListItem listItem=listItems.get(position);
        holder.headText.setText(listItem.getHead());
        holder.desText.setText(listItem.getDes());
        holder.linearLayout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                Intent intent=new Intent(context,ArticleActivity.class);
                intent.putExtra("description",listItem.getDesc());
                context.startActivity(intent);
            }
        });
      // Picasso.with(context).load(R.drawable.netfix).resize(900,300).into(holder.imageView);
    }

在您拥有WebView的活动中。用它来恢复通过意图Intent intent = getIntent(); String description= intent.getStringExtra('description');传递的数据//现在您在这里有数据。

享受：）