[android] Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $

What is this error ? How can I fix this? My app is running but can't load data. And this is my Error: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $

This is my fragment :

public class news extends Fragment {


private RecyclerView recyclerView;
private ArrayList<Deatails> data;
private DataAdapter adapter;
private View myFragmentView;



@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    myFragmentView = inflater.inflate(R.layout.news, container, false);
    initViews();
    return myFragmentView;

}


private void initViews() {
    recyclerView = (RecyclerView) myFragmentView.findViewById(R.id.card_recycler_view);
    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity().getApplicationContext());
    recyclerView.setHasFixedSize(true);
    recyclerView.setLayoutManager(layoutManager);
    data = new ArrayList<Deatails>();
    adapter = new DataAdapter(getActivity(), data);
    recyclerView.setAdapter(adapter);

    new Thread()
    {
        public void run()
        {
            getActivity().runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    loadJSON();
                }
            });

        }
    }
    .start();
}

private void loadJSON() {
    if (isNetworkConnected()){

        HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
        interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(interceptor)
                .retryOnConnectionFailure(true)
                .connectTimeout(15, TimeUnit.SECONDS)
                .build();

        Gson gson = new GsonBuilder()
                .setLenient()
                .create();
        
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl("http://www.memaraneha.ir/")
                .client(client)
                .addConverterFactory(GsonConverterFactory.create(gson))
                .build();
        
        RequestInterface request = retrofit.create(RequestInterface.class);
        Call<JSONResponse> call = request.getJSON();
        final ProgressDialog progressDialog = new ProgressDialog(getActivity());
        progressDialog.show();
        call.enqueue(new Callback<JSONResponse>() {
            @Override
            public void onResponse(Call<JSONResponse> call, Response<JSONResponse> response) {
                progressDialog.dismiss();
                JSONResponse jsonResponse = response.body();
                data.addAll(Arrays.asList(jsonResponse.getAndroid()));
                adapter.notifyDataSetChanged();
            }
            @Override
            public void onFailure(Call<JSONResponse> call, Throwable t) {
                progressDialog.dismiss();
                Log.d("Error", t.getMessage());
            }
        });
    }
    else {
        Toast.makeText(getActivity().getApplicationContext(), "Internet is disconnected", Toast.LENGTH_LONG).show();}
}
private boolean isNetworkConnected() {
    ConnectivityManager cm = (ConnectivityManager) getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo ni = cm.getActiveNetworkInfo();
    if (ni == null) {
        // There are no active networks.
        return false;
    } else
        return true;
}
}

RequestInterface :

public interface RequestInterface {

@GET("Erfan/news.php")
Call<JSONResponse> getJSON();
}

UPDATE (read below text and find your problem)

• always this error not about your json , it could become from your wrong request , for better handle first check your request in postman if you got response then compare your json response with your model if nothing is wrong then this error come from your wrong request , also it could happened when your response not josn (in some cases response could be html)

In my case ; what solved my issue was.....

You may had json like this, the keys without " double quotations....

{ name: "test", phone: "2324234" }

So try any online Json Validator to make sure you have right syntax...

Json Validator Online

There was an error in understanding of return Type Just add Header and it will solve your problem

@Headers("Content-Type: application/json")

Using Moshi:

When building your Retrofit Service add .asLenient() to your MoshiConverterFactory. You don't need a ScalarsConverter. It should look something like this:

return Retrofit.Builder()
                .client(okHttpClient)
                .baseUrl(ENDPOINT)
                .addConverterFactory(MoshiConverterFactory.create().asLenient())
                .build()
                .create(UserService::class.java)

Also worth checking is if there are any errors in the return type of your interface methods. I could reproduce this issue by having an unintended return type like Call<Call<ResponseBody>>

I solved this problem very easily after finding out this happens when you aren't outputting a proper JSON object, I simply used the echo json_encode($arrayName); instead of print_r($arrayName); With my php api.

Every programming language or at least most programming languages should have their own version of the json_encode() and json_decode() functions.

I had same issue along with https://stackoverflow.com/a/57245058/8968137 and both solved after fixing the google-services.json

Also this issue occurres when the response contenttype is not application/json. In my case response contenttype was text/html and i faced this problem. I changed it to application/json then it worked.

This issue started occurring for me all of a sudden, so I was sure, there could be some other reason. On digging deep, it was a simple issue where I used http in the BaseUrl of Retrofit instead of https. So changing it to https solved the issue for me.

I have faced this problem and I made research and didn't get anything, so I was trying and finally, I knew the cause of this problem. the problem on the API, make sure you have a good variable name I used $start_date and it caused the problem, so I try $startdate and it works!

as well make sure you send all parameter that declare on API, for example, $startdate = $_POST['startdate']; $enddate = $_POST['enddate'];

you have to pass this two variable from the retrofit.

as well if you use date on SQL statement, try to put it inside '' like '2017-07-24'

I hope it helps you.