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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.cardreader;
import android.app.Activity;
import android.nfc.NfcAdapter;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import com.example.android.common.logger.Log;
/**
* Generic UI for sample discovery.
*/
public class CardReaderFragment extends Fragment implements LoyaltyCardReader.AccountCallback {
public static final String TAG = "CardReaderFragment";
// Recommend NfcAdapter flags for reading from other Android devices. Indicates that this
// activity is interested in NFC-A devices (including other Android devices), and that the
// system should not check for the presence of NDEF-formatted data (e.g. Android Beam).
public static int READER_FLAGS =
NfcAdapter.FLAG_READER_NFC_A | NfcAdapter.FLAG_READER_SKIP_NDEF_CHECK;
public LoyaltyCardReader mLoyaltyCardReader;
private TextView mAccountField;
/** Called when sample is created. Displays generic UI with welcome text. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.main_fragment, container, false);
if (v != null) {
mAccountField = (TextView) v.findViewById(R.id.card_account_field);
mAccountField.setText("Waiting...");
mLoyaltyCardReader = new LoyaltyCardReader(this);
// Disable Android Beam and register our card reader callback
enableReaderMode();
}
return v;
}
@Override
public void onPause() {
super.onPause();
disableReaderMode();
}
@Override
public void onResume() {
super.onResume();
enableReaderMode();
}
private void enableReaderMode() {
Log.i(TAG, "Enabling reader mode");
Activity activity = getActivity();
NfcAdapter nfc = NfcAdapter.getDefaultAdapter(activity);
if (nfc != null) {
nfc.enableReaderMode(activity, mLoyaltyCardReader, READER_FLAGS, null);
}
}
private void disableReaderMode() {
Log.i(TAG, "Disabling reader mode");
Activity activity = getActivity();
NfcAdapter nfc = NfcAdapter.getDefaultAdapter(activity);
if (nfc != null) {
nfc.disableReaderMode(activity);
}
}
@Override
public void onAccountReceived(final String account) {
// This callback is run on a background thread, but updates to UI elements must be performed
// on the UI thread.
getActivity().runOnUiThread(new Runnable() {
@Override
public void run() {
mAccountField.setText(account);
}
});
}
}
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