How to check if a device is connected to the Internet

I want to make sure the device is connected to the Internet.

There is a method called isAvailable() in the NetworkInfo class, and I think you can use this.

NetworkInfo ni = new NetworkInfo();
if (!ni.isAvailable()) {
    // // do something
}

The constructor NetworkInfo is not visible.

I got this error. Is there any other way to get NetworkInfo?

android internet-connection android-internet

2022-09-21 14:53

1 Answers

connectivitymanager of getactivenetworkinfo (), , if the Internet is connected networkinfo the return or null back.

You can check if the Internet is connected with this return value.

private boolean isNetworkAvailable() {
    ConnectivityManager connectivityManager 
          = = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}

Please refer to the sauce

Oh! And

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

You must go to the Android manifest file and insert the above code.

2022-09-21 14:53

If you have any answers or tips

Popular Tags

python x 4647

android x 1593

java x 1494

javascript x 1427

c x 927

c++ x 878

ruby-on-rails x 696

php x 692

python3 x 685

html x 656