Check internet connection in android (not network connection)

Question

I have a problem with checking internet connection in android at runtime. I use some different methods to check internet connection but i don't know which one is better . because each of them have some problems .

Method 1 check internet connection by pinging Google :

Runtime runtime = Runtime.getRuntime();
try {
       Process mIpAddressProcess = runtime.exec("/system/bin/ping -c 1   8.8.8.8");
       int mExitValue = mIpAddressProcess.waitFor();
       return mExitValue == 0;
} catch (InterruptedException | IOException ignore) {
            ignore.printStackTrace();
}

Method 2 check internet connection by ConnectivityManager :

public boolean checkNetwork() {

    ConnectivityManager internetManager = (ConnectivityManager) activity.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo networkInfo = internetManager.getActiveNetworkInfo();
    return (networkInfo != null && networkInfo.isConnected() && networkInfo.isAvailable() && networkInfo.isConnectedOrConnecting());

}

I use method 1 inside an async task, but it doesn't work correctly sometimes and slow down the app, and Method 2 (ConnectivityManager) doesn't check internet connection , it checks only network connection !

Answer 1

You can use below code to check whether network connection is available or not.

public class NetworkConnection {
    public Context context;

    public NetworkConnection(Context applicationContext) {
        this.context=applicationContext;
    }

    public boolean isOnline() {
        ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = cm.getActiveNetworkInfo();
        if (netInfo != null && netInfo.isConnectedOrConnecting()) {
            return true;
        }
        return false;
    }
}

---

public class MainActivity extends AppCompatActivity {
    NetworkConnection nt_check;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        nt_check=new NetworkConnection(context);
        if(nt_check.isOnline()) {
            // do logic
        } else {
            // show message network is not available.
        }
    }
}