Android NFC和onNewIntent（）

Question

When writing the onNewIntent(Intent intent) method in an NFC Activity, is it neccessary/correct to call super.onNewIntent(intent) ?

I ask because this official example includes it:

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    ...
    if (intent != null && NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {
        Parcelable[] rawMessages =
            intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
        if (rawMessages != null) {
            NdefMessage[] messages = new NdefMessage[rawMessages.length];
            for (int i = 0; i < rawMessages.length; i++) {
                messages[i] = (NdefMessage) rawMessages[i];
            }
            // Process the messages array.
            ...
        }
    }
}

But this other official example doesn't:

public void onNewIntent(Intent intent) {
    Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
    //do something with tagFromIntent
}

Presumably, the second example is incomplete (and incorrect) but I would just like to be sure.

Answer 1

Based on official documentation there's no reason to call super.onNewIntent(..) .

As an example you could check onDestroy() method documentation . It includes next line:

Derived classes must call through to the super class's implementation of this method. If they do not, an exception will be thrown.