How to check whether NFC is enabled or not in android?

Question

How can i check whether NFC is enabled or not programmatically? Is there any way to enable the NFC on the device from my program? Please help me

Answer 1

This can be done simply using the following code:

NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);

if (nfcAdapter == null) {
    // NFC is not available for device
} else if (!nfcAdapter.isEnabled()) {
    // NFC is available for device but not enabled
} else {
    // NFC is enabled
}

Remember that the user can turn off NFC, even while using your app.

Source: https://developer.android.com/guide/topics/connectivity/nfc/nfc#manifest

Although you can't programically enable NFC yourself, you can ask the user to enable it by having a button to open NFC settings like so:

Intent intent
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
    intent = new Intent(Settings.ACTION_NFC_SETTINGS);
} else {
    Intent intent = new Intent(Settings.ACTION_WIRELESS_SETTINGS);
}

startActivity(intent);