Incompatible Types While using Context

Question

I've previously used this for downloading the data from database. Now I'm trying to use the same in fragments in tabbed Activity but it showing error at at Context. I tried a lot about it but I couldn't find any solution I hope anyone could help me. Here this a screenshot of the error occurring:

Fragment

package com.custardpine.v_guide.movie;

import android.os.Bundle;
import android.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.custardpine.v_guide.R;

public class Trending extends Fragment{

final String url = "http://192.168.43.51/proj/trending.php";
ListView lv;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_movie_trending, container, false);
    lv = (ListView) rootView.findViewById(R.id.mves_list);
    DownloaderMovies d= new DownloaderMovies(Trending.this,url,lv);
    d.execute();
    return rootView;
}
}

Downloader

package com.custardpine.v_guide.movie;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.widget.ListView;
import android.widget.Toast;


import com.custardpine.v_guide.bus.Connector;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;

public class DownloaderMovies extends AsyncTask<Void,Void,String> {

    Context c;
    String url;
    ListView lv;
    ProgressDialog pd;

public DownloaderMovies(Trending c, String url, ListView lv) {

    this.c = c;          <--Error Occuring Here-->
    this.url = url;
    this.lv = lv;

}


@Override
protected void onPreExecute() {
    super.onPreExecute();
    pd = new ProgressDialog(c);
    pd.setTitle("Downloading..");
    pd.setMessage("Please wait.....");
    pd.show();
    }
 @Override
 protected String doInBackground(Void... voids) {

    return downloadData();
    }

@Override
protected void onPostExecute(String jsonData) {
    super.onPostExecute(jsonData);
    pd.dismiss();
    if (jsonData==null){

    Toast.makeText(c,"Failed to Download",Toast.LENGTH_SHORT).show();
    }else {
    ParseMovies p= new ParseMovies(c,jsonData,lv);
    p.execute();
    }
    }
private String downloadData()
    {

    HttpURLConnection con = Connector.connect(url);
    if (con == null) {
    return null;
    }
    try{
    InputStream is = new BufferedInputStream(con.getInputStream());
    BufferedReader br= new BufferedReader(new InputStreamReader(is));
    String line;
    StringBuffer jsonData= new StringBuffer();
    while ((line=br.readLine())!=null)
    {
    jsonData.append(line+"n");
    }
    br.close();
    is.close();
    return jsonData.toString();
    } catch (IOException e) {
    e.printStackTrace();
    }

    return null;
    }
    }

`public DownloaderMovies(Trending c, String url, ListView lv) {`. That should be `public DownloaderMovies(Context c, String url, ListView lv) {`. — greenapps, Feb 05 '18 at 15:06

score 0 · Accepted Answer · answered Feb 05 '18 at 15:06

You get this error because (unlike an Activity) a Fragment is not a Context. But in your Fragment, you can use getContext() to get the context that you need. So instead of

DownloaderMovies d= new DownloaderMovies(Trending.this,url,lv);

you must use

DownloaderMovies d= new DownloaderMovies(getContext(),url,lv);

And also change the constructor of DownloaderMovies to

public DownloaderMovies(Context c, String url, ListView lv) {
    // ...
}

Incompatible Types While using Context

1 Answers1