Fetching JSON simple form

	<?xml version="1.0" encoding="utf-8"?>
	<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	xmlns:app="http://schemas.android.com/apk/res-auto"
	xmlns:tools="http://schemas.android.com/tools"
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical"
	tools:context=".json1.JSONActivity">
	<Button
	android:id="@+id/btn_json"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:text="JSON fetch" />
	<TextView
	android:id="@+id/txt"
	android:layout_width="match_parent"
	android:layout_height="wrap_content"
	android:layout_margin="10dp"
	android:text="fetch" />
	</LinearLayout>

view raw activity_json.xml hosted with ❤ by GitHub

	package com.arham.csdevbin.all_android_concept.json1;
	import android.app.ProgressDialog;
	import android.content.Context;
	import android.os.AsyncTask;
	import org.json.JSONArray;
	import org.json.JSONException;
	import org.json.JSONObject;
	import java.io.BufferedReader;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.net.HttpURLConnection;
	import java.net.MalformedURLException;
	import java.net.URL;
	public class FetchJson extends AsyncTask<Void, Void, Void> {
	String data = "";
	ProgressDialog progressBar;
	Context context;
	String dataParsed = "";
	String singleParsed = "";
	public FetchJson(Context context) {
	this.context = context;
	this.progressBar = new ProgressDialog(context);
	}
	@Override
	protected void onPreExecute() {
	super.onPreExecute();
	progressBar.show();
	}
	@Override
	protected Void doInBackground(Void... voids) {
	try {
	URL url = new URL("https://api.myjson.com/bins/q3k94");
	HttpURLConnection connection = (HttpURLConnection) url.openConnection();
	InputStream inputStream = connection.getInputStream();
	BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
	String line = "";
	while (line != null) {
	line = bufferedReader.readLine();
	data = data + line;
	}
	JSONArray jsonArray = new JSONArray(data);
	for (int i = 0; i < jsonArray.length(); i++) {
	JSONObject jsonObject = (JSONObject) jsonArray.get(i);
	singleParsed = "Name: " + jsonObject.get("name") + "\n" +
	"password: " + jsonObject.get("password") + "\n" +
	"contact: " + jsonObject.get("contact") + "\n" +
	"country: " + jsonObject.get("country") + "\n";
	dataParsed = dataParsed + singleParsed + "\n";
	}
	} catch (MalformedURLException e) {
	e.printStackTrace();
	} catch (IOException e) {
	e.printStackTrace();
	} catch (JSONException e) {
	e.printStackTrace();
	}
	return null;
	}
	@Override
	protected void onPostExecute(Void aVoid) {
	super.onPostExecute(aVoid);
	JSONActivity.showJSON.setText(this.dataParsed);
	progressBar.dismiss();
	}
	}

view raw FetchJson.java hosted with ❤ by GitHub

	package com.arham.csdevbin.all_android_concept.json1;
	import android.support.v7.app.AppCompatActivity;
	import android.os.Bundle;
	import android.view.View;
	import android.widget.Button;
	import android.widget.TextView;
	import com.arham.csdevbin.all_android_concept.MainActivity;
	import com.arham.csdevbin.all_android_concept.R;
	public class JSONActivity extends AppCompatActivity {
	Button click;
	public static TextView showJSON;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_json);
	click = findViewById(R.id.btn_json);
	showJSON = findViewById(R.id.txt);
	click.setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	FetchJson fetchJson = new FetchJson(JSONActivity.this);
	fetchJson.execute();
	}
	});
	}
	}

view raw JSONActivity.java hosted with ❤ by GitHub