1 /* 2 * Copyright (C) 2013 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 17 package com.android.nfc.cardemulation; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.DialogInterface; 22 import android.content.Intent; 23 import android.content.IntentFilter; 24 import android.content.pm.PackageManager; 25 import android.nfc.NfcAdapter; 26 import android.nfc.cardemulation.ApduServiceInfo; 27 import android.nfc.cardemulation.CardEmulation; 28 import android.os.Bundle; 29 import android.view.Window; 30 import android.view.WindowManager; 31 import android.widget.TextView; 32 33 import com.android.internal.R; 34 import com.android.internal.app.AlertActivity; 35 import com.android.internal.app.AlertController; 36 37 public class TapAgainDialog extends AlertActivity implements DialogInterface.OnClickListener { 38 public static final String ACTION_CLOSE = "com.android.nfc.cardmeulation.close_tap_dialog"; 39 public static final String EXTRA_APDU_SERVICE = "apdu_service"; 40 41 public static final String EXTRA_CATEGORY = "category"; 42 43 // Variables below only accessed on the main thread 44 private CardEmulation mCardEmuManager; 45 private boolean mClosedOnRequest = false; 46 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 47 @Override 48 public void onReceive(Context context, Intent intent) { 49 mClosedOnRequest = true; 50 finish(); 51 } 52 }; 53 54 @Override onCreate(Bundle savedInstanceState)55 protected void onCreate(Bundle savedInstanceState) { 56 super.onCreate(savedInstanceState); 57 58 setTheme(R.style.Theme_DeviceDefault_Light_Dialog_Alert); 59 60 final NfcAdapter adapter = NfcAdapter.getDefaultAdapter(this); 61 mCardEmuManager = CardEmulation.getInstance(adapter); 62 Intent intent = getIntent(); 63 String category = intent.getStringExtra(EXTRA_CATEGORY); 64 ApduServiceInfo serviceInfo = intent.getParcelableExtra(EXTRA_APDU_SERVICE); 65 IntentFilter filter = new IntentFilter(ACTION_CLOSE); 66 filter.addAction(Intent.ACTION_SCREEN_OFF); 67 registerReceiver(mReceiver, filter); 68 AlertController.AlertParams ap = mAlertParams; 69 70 ap.mTitle = ""; 71 ap.mView = getLayoutInflater().inflate(com.android.nfc.R.layout.tapagain, null); 72 73 PackageManager pm = getPackageManager(); 74 TextView tv = (TextView) ap.mView.findViewById(com.android.nfc.R.id.textview); 75 String description = serviceInfo.getDescription(); 76 if (description == null) { 77 CharSequence label = serviceInfo.loadLabel(pm); 78 if (label == null) { 79 finish(); 80 } else { 81 description = label.toString(); 82 } 83 } 84 if (CardEmulation.CATEGORY_PAYMENT.equals(category)) { 85 String formatString = getString(com.android.nfc.R.string.tap_again_to_pay); 86 tv.setText(String.format(formatString, description)); 87 } else { 88 String formatString = getString(com.android.nfc.R.string.tap_again_to_complete); 89 tv.setText(String.format(formatString, description)); 90 } 91 ap.mNegativeButtonText = getString(R.string.cancel); 92 setupAlert(); 93 Window window = getWindow(); 94 window.addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD); 95 } 96 97 @Override onDestroy()98 protected void onDestroy() { 99 super.onDestroy(); 100 unregisterReceiver(mReceiver); 101 } 102 103 @Override onStop()104 protected void onStop() { 105 super.onStop(); 106 if (!mClosedOnRequest) { 107 mCardEmuManager.setDefaultForNextTap(null); 108 } 109 } 110 111 @Override onClick(DialogInterface dialog, int which)112 public void onClick(DialogInterface dialog, int which) { 113 finish(); 114 } 115 }