Android library to verify if the device has an Internet connection and what type it is!
Gradle:
dependencies {
implementation 'com.massivedisaster.adal:adal-connectivity:0.1.20'
}/**
* Connectivity Change Fragment meant to test the {@link ConnectionChangeReceiver} for connectivity changes.
*/
public class FragmentConnectivityAware extends BaseFragment implements View.OnClickListener {
private TextView mTxtMessage;
private Button mCheckConnectivityButton;
/**
* Network verification.
*/
private ConnectionChangeReceiver mConnectionReceiver = new ConnectionChangeReceiver() {
@Override public void onReceive(@NonNull final Context context, @NonNull final Intent intent) {
if (ConnectionChangeReceiver.CONNECTIVITY_CHANGE_FILTER.equals(intent.getAction())) {
checkConnectivity();
}
}
};
@Override protected void getFromBundle(Bundle bundle) {
// Intended.
}
@Override protected int layoutToInflate() {
return R.layout.fragment_connectivity_aware;
}
@Override protected void restoreInstanceState(@Nullable Bundle savedInstanceState) {
// Intended.
}
@Override protected void doOnCreated() {
getActivity().setTitle(R.string.sample_network);
mTxtMessage = findViewById(R.id.txtMessage);
mCheckConnectivityButton = findViewById(R.id.btnCheckConnectivity);
}
/**
* Called when FragmentConnectivityAware is about to become visible.
*/
@Override public void onStart() {
super.onStart();
mConnectionReceiver.registerConnectionChangeReceiver(getActivity());
mCheckConnectivityButton.setOnClickListener(this);
}
/**
* Called when the FragmentConnectivityAware has become visible.
*/
@Override public void onResume() {
super.onResume();
checkConnectivity();
}
/**
* Called just before the FragmentConnectivityAware is destroyed.
*/
@Override public void onDestroy() {
if (mConnectionReceiver != null) {
mConnectionReceiver.unregisterConnectionChangeReceiver();
}
super.onDestroy();
}
/**
* Called when a view has been clicked.
* @param view the clicked {@link View}.
*/
@Override public void onClick(View view) {
if (R.id.btnCheckConnectivity == view.getId()) {
checkConnectivity();
}
}
/**
* Check whether the device has Internet connectivity or not.
*/
private void checkConnectivity() {
if (isVisible()) {
final boolean isOnline = NetworkUtils.isNetworkConnected(getActivity());
handleConnectivityStatusChange(isOnline);
}
}
/**
* Log the device Internet connectivity status.
*
* @param isOnline boolean value indicating whether the device has a connection established or not.
*/
private void handleConnectivityStatusChange(final boolean isOnline) {
final String deviceConnectivity = isOnline ? getString(R.string.connectivity_device_online)
: getString(R.string.connectivity_device_offline);
mTxtMessage.setText(deviceConnectivity);
Toast.makeText(getActivity(), deviceConnectivity, Toast.LENGTH_SHORT).show();
}
}