Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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.contacts; |
| 18 | |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 19 | import android.app.Activity; |
| 20 | import android.content.ContentResolver; |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 21 | import android.content.Context; |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 22 | import android.net.Uri; |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 23 | import android.nfc.NdefMessage; |
| 24 | import android.nfc.NdefRecord; |
| 25 | import android.nfc.NfcAdapter; |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 26 | import android.nfc.NfcEvent; |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 27 | import android.provider.ContactsContract.Contacts; |
Martijn Coenen | 92165c6 | 2011-09-13 16:03:18 +0200 | [diff] [blame] | 28 | import android.provider.ContactsContract.Profile; |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 29 | import android.util.Log; |
| 30 | |
| 31 | import java.io.ByteArrayOutputStream; |
| 32 | import java.io.IOException; |
| 33 | import java.io.InputStream; |
| 34 | |
Martijn Coenen | 194cdd3 | 2011-06-16 08:51:20 +0200 | [diff] [blame] | 35 | /** |
| 36 | * This class implements sharing the currently displayed |
| 37 | * contact to another device using NFC. NFC sharing is only |
| 38 | * enabled when the activity is in the foreground and resumed. |
| 39 | * When an NFC link is established, {@link #createMessage} |
| 40 | * will be called to create the data to be sent over the link, |
| 41 | * which is a vCard in this case. |
| 42 | */ |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 43 | public class NfcHandler implements NfcAdapter.CreateNdefMessageCallback { |
| 44 | |
Martijn Coenen | 92165c6 | 2011-09-13 16:03:18 +0200 | [diff] [blame] | 45 | private static final String TAG = "ContactNfcHandler"; |
| 46 | private static final String PROFILE_LOOKUP_KEY = "profile"; |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 47 | private final Context mContext; |
| 48 | private final Uri mContactUri; |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 49 | |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 50 | /* Register NFC handler. This should be called in activities' onCreate(), or similar methods */ |
| 51 | public static void register(Activity activity, Uri contactUri) { |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 52 | NfcAdapter adapter = NfcAdapter.getDefaultAdapter(activity.getApplicationContext()); |
| 53 | if (adapter == null) { |
| 54 | return; // NFC not available on this device |
| 55 | } |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 56 | adapter.setNdefPushMessageCallback(new NfcHandler(activity, contactUri), activity); |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 57 | } |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 58 | |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 59 | public NfcHandler(Context context, Uri contactUri) { |
| 60 | mContext = context; |
| 61 | mContactUri = contactUri; |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | @Override |
Nick Pelly | a3364bc | 2011-08-23 18:49:03 -0700 | [diff] [blame] | 65 | public NdefMessage createNdefMessage(NfcEvent event) { |
Brian Attwell | 2d150da | 2014-07-09 22:35:56 -0700 | [diff] [blame] | 66 | ContentResolver resolver = mContext.getContentResolver(); |
| 67 | if (mContactUri != null) { |
| 68 | final String lookupKey = Uri.encode(mContactUri.getPathSegments().get(2)); |
Martijn Coenen | 92165c6 | 2011-09-13 16:03:18 +0200 | [diff] [blame] | 69 | final Uri shareUri; |
| 70 | // TODO find out where to get this constant from, or find another way |
| 71 | // of determining this. |
| 72 | if (lookupKey.equals(PROFILE_LOOKUP_KEY)) { |
| 73 | shareUri = Profile.CONTENT_VCARD_URI.buildUpon(). |
| 74 | appendQueryParameter(Contacts.QUERY_PARAMETER_VCARD_NO_PHOTO, "true"). |
| 75 | build(); |
| 76 | } else { |
| 77 | shareUri = Contacts.CONTENT_VCARD_URI.buildUpon(). |
| 78 | appendPath(lookupKey). |
| 79 | appendQueryParameter(Contacts.QUERY_PARAMETER_VCARD_NO_PHOTO, "true"). |
| 80 | build(); |
| 81 | } |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 82 | ByteArrayOutputStream ndefBytes = new ByteArrayOutputStream(); |
| 83 | byte[] buffer = new byte[1024]; |
| 84 | int r; |
| 85 | try { |
| 86 | InputStream vcardInputStream = resolver.openInputStream(shareUri); |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 87 | while ((r = vcardInputStream.read(buffer)) > 0) { |
| 88 | ndefBytes.write(buffer, 0, r); |
| 89 | } |
| 90 | |
Nick Pelly | cd564c9 | 2012-01-09 10:50:12 -0800 | [diff] [blame] | 91 | NdefRecord record = NdefRecord.createMime("text/x-vcard", ndefBytes.toByteArray()); |
| 92 | return new NdefMessage(record); |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 93 | } catch (IOException e) { |
| 94 | Log.e(TAG, "IOException creating vcard."); |
| 95 | return null; |
| 96 | } |
| 97 | } else { |
| 98 | Log.w(TAG, "No contact URI to share."); |
| 99 | return null; |
| 100 | } |
| 101 | } |
Martijn Coenen | 8bd4065 | 2011-06-15 15:55:05 +0200 | [diff] [blame] | 102 | } |