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      1 /*
      2  * Copyright (C) 2015 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.settings.nfc;
     17 
     18 import android.content.Context;
     19 import android.support.v7.preference.DropDownPreference;
     20 import android.support.v7.preference.Preference;
     21 
     22 import com.android.settings.R;
     23 
     24 public class NfcForegroundPreference extends DropDownPreference implements
     25         PaymentBackend.Callback, Preference.OnPreferenceChangeListener {
     26 
     27     private final PaymentBackend mPaymentBackend;
     28     public NfcForegroundPreference(Context context, PaymentBackend backend) {
     29         super(context);
     30         mPaymentBackend = backend;
     31         mPaymentBackend.registerCallback(this);
     32 
     33         setTitle(getContext().getString(R.string.nfc_payment_use_default));
     34         setEntries(new CharSequence[] {
     35                 getContext().getString(R.string.nfc_payment_favor_open),
     36                 getContext().getString(R.string.nfc_payment_favor_default)
     37         });
     38         setEntryValues(new CharSequence[] { "1", "0" });
     39         refresh();
     40         setOnPreferenceChangeListener(this);
     41     }
     42 
     43     @Override
     44     public void onPaymentAppsChanged() {
     45         refresh();
     46     }
     47 
     48     void refresh() {
     49         boolean foregroundMode = mPaymentBackend.isForegroundMode();
     50         if (foregroundMode) {
     51             setValue("1");
     52         } else {
     53             setValue("0");
     54         }
     55         setSummary(getEntry());
     56     }
     57 
     58     @Override
     59     public boolean onPreferenceChange(Preference preference, Object newValue) {
     60         String newValueString = (String) newValue;
     61         setSummary(getEntries()[findIndexOfValue(newValueString)]);
     62         mPaymentBackend.setForegroundMode(Integer.parseInt(newValueString) != 0);
     63         return true;
     64     }
     65 }
     66