add internet permission in android with code examples

Adding Internet Permission in Android: A Guide with Code Examples

In today's world, internet connectivity is a must-have feature for almost all Android applications. Whether it's for fetching data from a remote server or sending data to a database, the internet permission is crucial for the proper functioning of many apps. In this article, we will discuss the process of adding internet permission in Android and provide code examples for better understanding.

Before we dive into the code, let's discuss the reason behind having internet permission in the first place. The Android operating system provides a secure environment for the applications installed on the device. It restricts the applications from accessing sensitive information and resources on the device, including the internet. Therefore, it is necessary to declare the internet permission in the AndroidManifest.xml file. This file is located in the root directory of the Android project and contains all the necessary information about the application, including its permissions.

Adding Internet Permission in AndroidManifest.xml

To add the internet permission in Android, we need to modify the AndroidManifest.xml file. Here is the code for adding internet permission:

<uses-permission android:name="android.permission.INTERNET"/>

This line of code should be placed inside the <manifest> tag in the AndroidManifest.xml file. This line of code tells the Android operating system that the application needs access to the internet.

Here is an example of the complete AndroidManifest.xml file after adding the internet permission:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapplication">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

As you can see, the internet permission has been added inside the <manifest> tag. This permission will now be available for the application to use.

Using Internet Permission in Code

Now that the internet permission has been added to the AndroidManifest.xml file, it's time to use it in the code. The following code snippet shows an example of using the internet permission in code:

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Example code for using the internet permission
        ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
        if (
Using the Connectivity Manager

The ConnectivityManager is a class in the Android framework that allows you to monitor the status of the device's network connections. In the code example above, we are using the ConnectivityManager to determine the status of the device's internet connection.

The `getSystemService()` method is used to retrieve the ConnectivityManager service from the system. Then, the `getActiveNetworkInfo()` method is used to get information about the currently active network. The `NetworkInfo` object that is returned can be used to determine if the device is connected to a network and, if so, the type of connection.

If the device is connected to a network, we can proceed with making a network request. If not, we can display a message to the user or take some other appropriate action.

Using the HttpURLConnection Class

The HttpURLConnection class is the standard Java class for making HTTP network requests. To use it in Android, we first need to create a URL object that represents the URL we want to connect to. Then, we can open a connection to the URL and send a request. The response from the server is then read and processed.

Here is an example of making an HTTP GET request using the HttpURLConnection class:

private class DownloadTask extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String… urls) {
try {
URL url = new URL(urls[0]);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();

        InputStream inputStream = connection.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
        StringBuilder result = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            result.append(line);
        }

        return result.toString();
    } catch (Exception e) {
        return e.toString();
    }
}

@Override
protected void onPostExecute(String result) {
    // Do something with the result here
}

}

In this example, the `DownloadTask` class extends the `AsyncTask` class, which allows us to perform network operations in the background without blocking the UI thread. This is important because network operations can take a long time to complete and we don't want to freeze the UI while waiting for the response.

The `doInBackground()` method is where the network request is made. We start by creating a URL object from the URL passed in as a parameter. Then, we open a connection to the URL using the `openConnection()` method. The `setRequestMethod("GET")` method is used to specify that we want to make a GET request. Finally, we connect to the URL using the `connect()` method.

The response from the server is read from the input stream returned by the `getInputStream()` method. The `BufferedReader` class is used to read the response line by line, and the result is stored in a `StringBuilder` object.

Finally, the result is returned by the `doInBackground()` method and processed in the `onPostExecute()` method.

Conclusion

In this article, we have discussed the process of adding internet permission in Android and provided code examples for better understanding. We have also
## Popular questions 
1. Why do we need to add internet permission in Android? 
Answer: We need to add internet permission in Android to allow the app to access the internet. This is necessary for making network requests, accessing online resources, and performing other internet-related tasks.

2. What is the internet permission in Android? 
Answer: The internet permission in Android is a permission that you can add to your app's manifest file. It allows the app to access the internet and perform network-related tasks. The permission is specified using the `<uses-permission>` element in the manifest file.

3. How do I add internet permission in Android? 
Answer: To add internet permission in Android, you need to add the following line to your app's manifest file:


“`

  1. What are the code examples to check for internet connectivity in Android?
    Answer: Here is a code example to check for internet connectivity in Android:
private boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
  1. What are the code examples to make an HTTP GET request using the HttpURLConnection class in Android?
    Answer: Here is a code example to make an HTTP GET request using the HttpURLConnection class in Android:
private class DownloadTask extends AsyncTask<String, Void, String> {
    @Override
    protected String doInBackground(String... urls) {
        try {
            URL url = new URL(urls[0]);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();

            InputStream inputStream = connection.getInputStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
            StringBuilder result = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                result.append(line);
            }

            return result.toString();
        } catch (Exception e) {
            return e.toString();
        }
    }

    @Override
    protected void onPostExecute(String result) {
        // Do something with the result here
    }
}

Tag

Android-Networking

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