---
title: "Networking in Android"
description: "Hi everyone, here we will see how to implement Networking in Android"
author: "Manoj Pandey"
published: 2015-02-20
updated: 2019-09-07
canonical: https://www.mindstick.com/articles/1595/networking-in-android
category: "android"
tags: ["android"]
reading_time: 5 minutes
---
# Networking in Android
Previously, we learn about Action Bar with menu in Android. Now we see how to use Networking in Android.\
In Android networking, basic task involved in connecting to the network, monitoring the [network connection](https://answers.mindstick.com/qa/94984/how-do-you-change-the-network-connection-priority-in-windows-10) (including connection changes), and giving users control over an app's network usage. It also describes how to parse and consume [XML data](https://www.mindstick.com/forum/131/problem-in-showing-the-xml-data-in-well-formed).
In this article we learn basic settings of network
1. Connecting to the Network
This Concepts shows you how to implement a simple application that connects to the network. It explains some of the [best practices](https://www.mindstick.com/articles/337564/building-a-microservices-architecture-with-laravel-best-practices) you should follow in creating even the simplest network-connected app.
If you are perform any action in [your application](https://answers.mindstick.com/qa/95487/how-do-you-troubleshoot-when-your-application-link-is-not-responding) related to networking, before you must be allow permission from [AndroidManifest.xml](https://www.mindstick.com/interview/12768/what-is-the-androidmanifest-xml) as following code
```
```
2. Managing Network Usage
In this concepts describes how to write applications that have fine-grained control over their usage of network resources. [If your](https://yourviews.mindstick.com/view/83528/what-to-do-if-your-eye-glasses-don-t-fit) application performs a lot of network operations, you should provide user settings that allow users to [control your](https://yourviews.mindstick.com/story/4103/10-foods-that-can-control-your-blood-pressure) app’s data habits, such as how often [your app](https://answers.mindstick.com/qa/33368/how-will-you-design-a-listview-which-downloads-a-lot-of-images-and-displays-in-it-without-getting-your-app-hanged-whats-the-best-possible-way) syncs data, whether to perform uploads/downloads only when on Wi-Fi, whether to use data while roaming, and so on
\
As of Android 3.0 (Honeycomb) the system is configured to crash with a NetworkOnMainThreadException exception, if network is accessed in the [user interface](https://www.mindstick.com/blog/302016/what-is-user-interface-and-what-are-its-benefits) thread.Within an [Android application](https://www.mindstick.com/articles/1653/creating-libraries-for-android-applications) you should avoid performing long running operations on the user interface thread. This includes file and network.
\
For Good practice of access network under android and handle NetworkOnMainThreadExcetion use following code on beginning of your onCreate() method
```
StrictMode.ThreadPolicy policy = new StrictMode.
ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
```
Now I creating a sample for learn concepts of Networking
1. Create an Android project
2. Add permission in AndroidManifest.xml file
```
```
3. My activity_main.xml
```
```
4. Add following code in MainActivity.class
```
package com.example.androidnetworking;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.os.Bundle;import android.os.StrictMode;import android.app.Activity;import android.content.Context;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.TextView;import android.widget.Toast;
public class MainActivity extends Activity {
TextView textView; String data = "";
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); textView = (TextView) findViewById(R.id.text); textView.setOnClickListener(new OnClickListener() {
@Override public void onClick(View v) { // TODO Auto-generated method stub
}
});
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() .permitAll().build();
StrictMode.setThreadPolicy(policy);
try {
if (isNetworkAvailable()) { URL url = new URL("http://www.mindstick.com.com"); // An URLConnection for HTTP used to send and receive // data over the web HttpURLConnection con = (HttpURLConnection) url.openConnection(); // getInputStream() Response headers typically include metadata // such as the response body's content type and length, modified // dates and session cookies. readStream(con.getInputStream());
} else
Toast.makeText(getApplicationContext(),"Network is UnAvailable", Toast.LENGTH_LONG).show();
} catch (Exception ex) {
}
}
@Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is pre sent. getMenuInflater().inflate(R.menu.main, menu); return true;
}
public boolean isNetworkAvailable() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = cm.getActiveNetworkInfo(); // if no network is available networkInfo will be null // otherwise check if we are connected if (networkInfo != null && networkInfo.isConnected()) { return true;
} else
return false;
}
private void readStream(InputStream in) {
// BufferedReader wraps an existing Reader and buffers the input. BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(in));
String line = "";
while ((line = reader.readLine()) != null) {
data += line;
}
textView.setText(data);
} catch (IOException e) {
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
}}
}
}
}
```
Now run your application
\
\
***If Network is not available then***
\
---
Original Source: https://www.mindstick.com/articles/1595/networking-in-android
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