am ab67f493: Merge "Have getObjects() return ParsedNdefRecords" into gingerbread
Merge commit 'ab67f493dc44c1dfd6c795abcf61dfec2f233014' into gingerbread-plus-aosp * commit 'ab67f493dc44c1dfd6c795abcf61dfec2f233014': Have getObjects() return ParsedNdefRecords
This commit is contained in:
@@ -16,9 +16,10 @@
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package com.android.apps.tag;
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package com.android.apps.tag;
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import com.google.common.base.Preconditions;
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import com.android.apps.tag.record.ParsedNdefRecord;
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import com.google.common.collect.BiMap;
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import com.android.apps.tag.record.SmartPoster;
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import com.google.common.collect.ImmutableBiMap;
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import com.android.apps.tag.record.TextRecord;
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import com.android.apps.tag.record.UriRecord;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Iterables;
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import com.google.common.primitives.Bytes;
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import com.google.common.primitives.Bytes;
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@@ -26,11 +27,8 @@ import android.net.Uri;
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import android.nfc.NdefMessage;
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import android.nfc.NdefMessage;
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import android.nfc.NdefRecord;
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import android.nfc.NdefRecord;
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import java.io.UnsupportedEncodingException;
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import java.net.URISyntaxException;
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import java.nio.charset.Charsets;
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import java.nio.charset.Charsets;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.List;
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/**
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/**
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@@ -41,51 +39,6 @@ import java.util.List;
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public class NdefUtil {
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public class NdefUtil {
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private static final byte[] EMPTY = new byte[0];
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private static final byte[] EMPTY = new byte[0];
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/**
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* NFC Forum "URI Record Type Definition"
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*
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* This is a mapping of "URI Identifier Codes" to URI string prefixes,
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* per section 3.2.2 of the NFC Forum URI Record Type Definition document.
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*/
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private static final BiMap<Byte, String> URI_PREFIX_MAP = ImmutableBiMap.<Byte, String>builder()
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.put((byte) 0x00, "")
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.put((byte) 0x01, "http://www.")
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.put((byte) 0x02, "https://www.")
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.put((byte) 0x03, "http://")
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.put((byte) 0x04, "https://")
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.put((byte) 0x05, "tel:")
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.put((byte) 0x06, "mailto:")
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.put((byte) 0x07, "ftp://anonymous:anonymous@")
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.put((byte) 0x08, "ftp://ftp.")
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.put((byte) 0x09, "ftps://")
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.put((byte) 0x0A, "sftp://")
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.put((byte) 0x0B, "smb://")
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.put((byte) 0x0C, "nfs://")
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.put((byte) 0x0D, "ftp://")
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.put((byte) 0x0E, "dav://")
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.put((byte) 0x0F, "news:")
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.put((byte) 0x10, "telnet://")
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.put((byte) 0x11, "imap:")
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.put((byte) 0x12, "rtsp://")
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.put((byte) 0x13, "urn:")
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.put((byte) 0x14, "pop:")
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.put((byte) 0x15, "sip:")
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.put((byte) 0x16, "sips:")
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.put((byte) 0x17, "tftp:")
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.put((byte) 0x18, "btspp://")
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.put((byte) 0x19, "btl2cap://")
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.put((byte) 0x1A, "btgoep://")
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.put((byte) 0x1B, "tcpobex://")
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.put((byte) 0x1C, "irdaobex://")
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.put((byte) 0x1D, "file://")
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.put((byte) 0x1E, "urn:epc:id:")
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.put((byte) 0x1F, "urn:epc:tag:")
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.put((byte) 0x20, "urn:epc:pat:")
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.put((byte) 0x21, "urn:epc:raw:")
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.put((byte) 0x22, "urn:epc:")
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.put((byte) 0x23, "urn:nfc:")
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.build();
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/**
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/**
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* Create a new {@link NdefRecord} containing the supplied {@link Uri}.
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* Create a new {@link NdefRecord} containing the supplied {@link Uri}.
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*/
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*/
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@@ -108,102 +61,12 @@ public class NdefUtil {
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NdefRecord.RTD_URI, EMPTY, payload);
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NdefRecord.RTD_URI, EMPTY, payload);
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}
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}
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/**
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public static Iterable<TextRecord> getTextFields(NdefMessage message) {
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* Convert {@link NdefRecord} into a {@link Uri}.
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return Iterables.filter(getObjects(message), TextRecord.class);
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*
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* TODO: This class does not handle NdefRecords where the TNF
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* (Type Name Format) of the class is {@link NdefRecord#TNF_ABSOLUTE_URI}.
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* This should be fixed.
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*
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* @throws IllegalArgumentException if the NdefRecord is not a
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* record containing a URI.
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*/
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public static Uri toUri(NdefRecord record) {
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Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
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Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_URI));
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byte[] payload = record.getPayload();
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/*
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* payload[0] contains the URI Identifier Code, per the
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* NFC Forum "URI Record Type Definition" section 3.2.2.
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*
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* payload[1]...payload[payload.length - 1] contains the rest of
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* the URI.
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*/
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String prefix = URI_PREFIX_MAP.get(payload[0]);
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byte[] fullUri = Bytes.concat(
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prefix.getBytes(Charsets.UTF_8),
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Arrays.copyOfRange(payload, 1, payload.length));
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return Uri.parse(new String(fullUri, Charsets.UTF_8));
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}
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}
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public static boolean isUri(NdefRecord record) {
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public static Iterable<UriRecord> getUris(NdefMessage message) {
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try {
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return Iterables.filter(getObjects(message), UriRecord.class);
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toUri(record);
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return true;
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} catch (IllegalArgumentException e) {
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return false;
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}
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}
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/**
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* Extracts payload text from Text type ndef record.
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*
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* @param record A ndef record. Must be {@link NdefRecord#TYPE_TEXT}.
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* @return text payload.
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*/
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public static String toText(NdefRecord record) {
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Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
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Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_TEXT));
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try {
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byte[] payload = record.getPayload();
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/*
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* payload[0] contains the "Status Byte Encodings" field, per
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* the NFC Forum "Text Record Type Definition" section 3.2.1.
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*
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* bit7 is the Text Encoding Field.
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*
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* if (Bit_7 == 0): The text is encoded in UTF-8
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* if (Bit_7 == 1): The text is encoded in UTF16
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*
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* Bit_6 is reserved for future use and must be set to zero.
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*
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* Bits 5 to 0 are the length of the IANA language code.
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*/
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String textEncoding = ((payload[0] & 0200) == 0) ? "UTF-8" : "UTF-16";
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int languageCodeLength = payload[0] & 0077;
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return new String(payload,
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languageCodeLength + 1,
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payload.length - languageCodeLength - 1,
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textEncoding);
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} catch (UnsupportedEncodingException e) {
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// should never happen unless we get a malformed tag.
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throw new IllegalArgumentException(e);
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}
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}
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public static boolean isText(NdefRecord record) {
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try {
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toText(record);
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return true;
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} catch (IllegalArgumentException e) {
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return false;
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}
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}
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public static Iterable<String> getTextFields(NdefMessage message) {
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return Iterables.filter(getObjects(message), String.class);
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}
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public static Iterable<Uri> getUris(NdefMessage message) {
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return Iterables.filter(getObjects(message), Uri.class);
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}
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}
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/**
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/**
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@@ -214,15 +77,15 @@ public class NdefUtil {
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* <p>
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* <p>
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* TODO: Is this API too generic? Should we keep it?
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* TODO: Is this API too generic? Should we keep it?
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*/
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*/
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public static Iterable<Object> getObjects(NdefMessage message) {
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public static Iterable<ParsedNdefRecord> getObjects(NdefMessage message) {
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List<Object> retval = new ArrayList<Object>();
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List<ParsedNdefRecord> retval = new ArrayList<ParsedNdefRecord>();
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for (NdefRecord record : message.getRecords()) {
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for (NdefRecord record : message.getRecords()) {
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if (isUri(record)) {
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if (UriRecord.isUri(record)) {
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retval.add(toUri(record));
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retval.add(UriRecord.parse(record));
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} else if (isText(record)) {
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} else if (TextRecord.isText(record)) {
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retval.add(toText(record));
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retval.add(TextRecord.parse(record));
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} else if (SmartPoster.isPoster(record)) {
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} else if (SmartPoster.isPoster(record)) {
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retval.add(SmartPoster.from(record));
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retval.add(SmartPoster.parse(record));
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}
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}
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}
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}
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return retval;
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return retval;
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@@ -32,6 +32,9 @@ import android.view.ViewGroup;
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import android.widget.Adapter;
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import android.widget.Adapter;
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import android.widget.CursorAdapter;
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import android.widget.CursorAdapter;
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import android.widget.TextView;
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import android.widget.TextView;
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import com.android.apps.tag.record.SmartPoster;
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import com.android.apps.tag.record.TextRecord;
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import com.android.apps.tag.record.UriRecord;
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/**
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/**
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* A custom {@link Adapter} that renders tag entries for a list.
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* A custom {@link Adapter} that renders tag entries for a list.
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@@ -61,14 +64,17 @@ public class TagAdapter extends CursorAdapter {
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mainLine.setText("Invalid tag");
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mainLine.setText("Invalid tag");
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} else {
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} else {
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try {
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try {
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SmartPoster poster = SmartPoster.from(msg.getRecords()[0]);
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SmartPoster poster = SmartPoster.parse(msg.getRecords()[0]);
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mainLine.setText(poster.getTitle());
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TextRecord title = poster.getTitle();
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if (title != null) {
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mainLine.setText(title.getText());
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}
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} catch (IllegalArgumentException e) {
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} catch (IllegalArgumentException e) {
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// Not a smart poster
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// Not a smart poster
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NdefRecord record = msg.getRecords()[0];
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NdefRecord record = msg.getRecords()[0];
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Uri uri = null;
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Uri uri = null;
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try {
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try {
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uri = NdefUtil.toUri(record);
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uri = UriRecord.parse(record).getUri();
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mainLine.setText(uri.toString());
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mainLine.setText(uri.toString());
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} catch (IllegalArgumentException e2) {
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} catch (IllegalArgumentException e2) {
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mainLine.setText("Not a smart poster or URL");
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mainLine.setText("Not a smart poster or URL");
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@@ -20,7 +20,6 @@ import android.app.Activity;
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import android.content.Intent;
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import android.content.Intent;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteDatabase;
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import android.graphics.Color;
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import android.graphics.Color;
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import android.net.Uri;
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import android.nfc.NdefMessage;
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import android.nfc.NdefMessage;
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import android.nfc.NdefTag;
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import android.nfc.NdefTag;
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import android.nfc.NfcAdapter;
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import android.nfc.NfcAdapter;
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@@ -31,6 +30,10 @@ import android.view.LayoutInflater;
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import android.view.WindowManager;
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import android.view.WindowManager;
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import android.widget.LinearLayout;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import android.widget.TextView;
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import com.android.apps.tag.record.ParsedNdefRecord;
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import com.android.apps.tag.record.SmartPoster;
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import com.android.apps.tag.record.TextRecord;
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import com.android.apps.tag.record.UriRecord;
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/**
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/**
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* An {@link Activity} which handles a broadcast of a new tag that the device just discovered.
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* An {@link Activity} which handles a broadcast of a new tag that the device just discovered.
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@@ -92,25 +95,30 @@ public class TagViewer extends Activity {
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// Build the views from the logical records in the messages
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// Build the views from the logical records in the messages
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boolean first = true;
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boolean first = true;
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for (NdefMessage msg : msgs) {
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for (NdefMessage msg : msgs) {
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Iterable<Object> objects = NdefUtil.getObjects(msg);
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Iterable<ParsedNdefRecord> objects = NdefUtil.getObjects(msg);
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for (Object object : objects) {
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for (ParsedNdefRecord object : objects) {
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if (!first) {
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if (!first) {
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list.addView(inflater.inflate(R.layout.tag_divider, list, false));
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list.addView(inflater.inflate(R.layout.tag_divider, list, false));
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first = false;
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first = false;
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}
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}
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if (object instanceof String) {
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if (object instanceof TextRecord) {
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TextRecord textRecord = (TextRecord) object;
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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text.setText((CharSequence) object);
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text.setText(textRecord.getText());
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list.addView(text);
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list.addView(text);
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} else if (object instanceof Uri) {
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} else if (object instanceof UriRecord) {
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UriRecord uriRecord = (UriRecord) object;
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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text.setText(object.toString());
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text.setText(uriRecord.getUri().toString());
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list.addView(text);
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list.addView(text);
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} else if (object instanceof SmartPoster) {
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} else if (object instanceof SmartPoster) {
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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TextView text = (TextView) inflater.inflate(R.layout.tag_text, list, false);
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SmartPoster poster = (SmartPoster) object;
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SmartPoster poster = (SmartPoster) object;
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text.setText(poster.getTitle());
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TextRecord title = poster.getTitle();
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if (title != null) {
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text.setText(title.getText());
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}
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list.addView(text);
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list.addView(text);
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}
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}
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}
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}
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@@ -0,0 +1,26 @@
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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||||||
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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||||||
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* See the License for the specific language governing permissions and
|
||||||
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* limitations under the License.
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||||||
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*/
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package com.android.apps.tag.record;
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/**
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* TODO: come up with a better name.
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*/
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public interface ParsedNdefRecord {
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// Just a placeholder for now. Probably not needed nor desired.
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public String getRecordType();
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}
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@@ -14,12 +14,12 @@
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* limitations under the License.
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* limitations under the License.
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*/
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*/
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package com.android.apps.tag;
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package com.android.apps.tag.record;
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import com.android.apps.tag.NdefUtil;
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import com.google.common.base.Preconditions;
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import com.google.common.base.Preconditions;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Iterables;
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import android.net.Uri;
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import android.nfc.FormatException;
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import android.nfc.FormatException;
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import android.nfc.NdefMessage;
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import android.nfc.NdefMessage;
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import android.nfc.NdefRecord;
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import android.nfc.NdefRecord;
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@@ -31,7 +31,7 @@ import javax.annotation.Nullable;
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|||||||
/**
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/**
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* A representation of an NFC Forum "Smart Poster".
|
* A representation of an NFC Forum "Smart Poster".
|
||||||
*/
|
*/
|
||||||
public class SmartPoster {
|
public class SmartPoster implements ParsedNdefRecord {
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* NFC Forum Smart Poster Record Type Definition section 3.2.1.
|
* NFC Forum Smart Poster Record Type Definition section 3.2.1.
|
||||||
@@ -41,7 +41,7 @@ public class SmartPoster {
|
|||||||
* This record is optional."
|
* This record is optional."
|
||||||
|
|
||||||
*/
|
*/
|
||||||
private final String mTitleRecord;
|
private final TextRecord mTitleRecord;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* NFC Forum Smart Poster Record Type Definition section 3.2.1.
|
* NFC Forum Smart Poster Record Type Definition section 3.2.1.
|
||||||
@@ -50,32 +50,32 @@ public class SmartPoster {
|
|||||||
* records are just metadata about this record. There MUST be one URI
|
* records are just metadata about this record. There MUST be one URI
|
||||||
* record and there MUST NOT be more than one."
|
* record and there MUST NOT be more than one."
|
||||||
*/
|
*/
|
||||||
private final Uri mUriRecord;
|
private final UriRecord mUriRecord;
|
||||||
|
|
||||||
private SmartPoster(Uri uri, @Nullable String title) {
|
private SmartPoster(UriRecord uri, @Nullable TextRecord title) {
|
||||||
mUriRecord = Preconditions.checkNotNull(uri);
|
mUriRecord = Preconditions.checkNotNull(uri);
|
||||||
mTitleRecord = title;
|
mTitleRecord = title;
|
||||||
}
|
}
|
||||||
|
|
||||||
public Uri getUri() {
|
public UriRecord getUriRecord() {
|
||||||
return mUriRecord;
|
return mUriRecord;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Returns the title of the smart poster. This may be {@code null}.
|
* Returns the title of the smart poster. This may be {@code null}.
|
||||||
*/
|
*/
|
||||||
public String getTitle() {
|
public TextRecord getTitle() {
|
||||||
return mTitleRecord;
|
return mTitleRecord;
|
||||||
}
|
}
|
||||||
|
|
||||||
public static SmartPoster from(NdefRecord record) {
|
public static SmartPoster parse(NdefRecord record) {
|
||||||
Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
|
Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
|
||||||
Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_SMART_POSTER));
|
Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_SMART_POSTER));
|
||||||
try {
|
try {
|
||||||
NdefMessage subRecords = new NdefMessage(record.getPayload());
|
NdefMessage subRecords = new NdefMessage(record.getPayload());
|
||||||
Uri uri = Iterables.getOnlyElement(NdefUtil.getUris(subRecords));
|
UriRecord uri = Iterables.getOnlyElement(NdefUtil.getUris(subRecords));
|
||||||
Iterable<String> textFields = NdefUtil.getTextFields(subRecords);
|
Iterable<TextRecord> textFields = NdefUtil.getTextFields(subRecords);
|
||||||
String title = null;
|
TextRecord title = null;
|
||||||
if (!Iterables.isEmpty(textFields)) {
|
if (!Iterables.isEmpty(textFields)) {
|
||||||
title = Iterables.get(textFields, 0);
|
title = Iterables.get(textFields, 0);
|
||||||
}
|
}
|
||||||
@@ -88,10 +88,15 @@ public class SmartPoster {
|
|||||||
|
|
||||||
public static boolean isPoster(NdefRecord record) {
|
public static boolean isPoster(NdefRecord record) {
|
||||||
try {
|
try {
|
||||||
from(record);
|
parse(record);
|
||||||
return true;
|
return true;
|
||||||
} catch (IllegalArgumentException e) {
|
} catch (IllegalArgumentException e) {
|
||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String getRecordType() {
|
||||||
|
return "SmartPoster";
|
||||||
|
}
|
||||||
}
|
}
|
||||||
97
apps/Tag/src/com/android/apps/tag/record/TextRecord.java
Normal file
97
apps/Tag/src/com/android/apps/tag/record/TextRecord.java
Normal file
@@ -0,0 +1,97 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2010 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.android.apps.tag.record;
|
||||||
|
|
||||||
|
import android.nfc.NdefRecord;
|
||||||
|
import com.google.common.base.Preconditions;
|
||||||
|
|
||||||
|
import java.io.UnsupportedEncodingException;
|
||||||
|
import java.util.Arrays;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* An NFC Text Record
|
||||||
|
*/
|
||||||
|
public class TextRecord implements ParsedNdefRecord {
|
||||||
|
|
||||||
|
private final String mLanguageCode;
|
||||||
|
private final String mText;
|
||||||
|
|
||||||
|
private TextRecord(String languageCode, String text) {
|
||||||
|
mLanguageCode = Preconditions.checkNotNull(languageCode);
|
||||||
|
mText = Preconditions.checkNotNull(text);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String getRecordType() {
|
||||||
|
return "Text";
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getText() {
|
||||||
|
return mText;
|
||||||
|
}
|
||||||
|
|
||||||
|
public String getLanguageCode() {
|
||||||
|
return mLanguageCode;
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO: deal with text fields which span multiple NdefRecords
|
||||||
|
public static TextRecord parse(NdefRecord record) {
|
||||||
|
Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
|
||||||
|
Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_TEXT));
|
||||||
|
try {
|
||||||
|
|
||||||
|
byte[] payload = record.getPayload();
|
||||||
|
|
||||||
|
/*
|
||||||
|
* payload[0] contains the "Status Byte Encodings" field, per
|
||||||
|
* the NFC Forum "Text Record Type Definition" section 3.2.1.
|
||||||
|
*
|
||||||
|
* bit7 is the Text Encoding Field.
|
||||||
|
*
|
||||||
|
* if (Bit_7 == 0): The text is encoded in UTF-8
|
||||||
|
* if (Bit_7 == 1): The text is encoded in UTF16
|
||||||
|
*
|
||||||
|
* Bit_6 is reserved for future use and must be set to zero.
|
||||||
|
*
|
||||||
|
* Bits 5 to 0 are the length of the IANA language code.
|
||||||
|
*/
|
||||||
|
|
||||||
|
String textEncoding = ((payload[0] & 0200) == 0) ? "UTF-8" : "UTF-16";
|
||||||
|
int languageCodeLength = payload[0] & 0077;
|
||||||
|
|
||||||
|
String languageCode = new String(payload, 1, languageCodeLength, "US-ASCII");
|
||||||
|
String text = new String(payload,
|
||||||
|
languageCodeLength + 1,
|
||||||
|
payload.length - languageCodeLength - 1,
|
||||||
|
textEncoding);
|
||||||
|
return new TextRecord(languageCode, text);
|
||||||
|
|
||||||
|
} catch (UnsupportedEncodingException e) {
|
||||||
|
// should never happen unless we get a malformed tag.
|
||||||
|
throw new IllegalArgumentException(e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
public static boolean isText(NdefRecord record) {
|
||||||
|
try {
|
||||||
|
parse(record);
|
||||||
|
return true;
|
||||||
|
} catch (IllegalArgumentException e) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
135
apps/Tag/src/com/android/apps/tag/record/UriRecord.java
Normal file
135
apps/Tag/src/com/android/apps/tag/record/UriRecord.java
Normal file
@@ -0,0 +1,135 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2010 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.android.apps.tag.record;
|
||||||
|
|
||||||
|
import android.net.Uri;
|
||||||
|
import android.nfc.NdefRecord;
|
||||||
|
import com.google.common.base.Preconditions;
|
||||||
|
import com.google.common.collect.BiMap;
|
||||||
|
import com.google.common.collect.ImmutableBiMap;
|
||||||
|
import com.google.common.primitives.Bytes;
|
||||||
|
|
||||||
|
import java.nio.charset.Charsets;
|
||||||
|
import java.util.Arrays;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* A parsed record containing a Uri.
|
||||||
|
*/
|
||||||
|
public class UriRecord implements ParsedNdefRecord {
|
||||||
|
private static final byte[] EMPTY = new byte[0];
|
||||||
|
|
||||||
|
/**
|
||||||
|
* NFC Forum "URI Record Type Definition"
|
||||||
|
*
|
||||||
|
* This is a mapping of "URI Identifier Codes" to URI string prefixes,
|
||||||
|
* per section 3.2.2 of the NFC Forum URI Record Type Definition document.
|
||||||
|
*/
|
||||||
|
private static final BiMap<Byte, String> URI_PREFIX_MAP = ImmutableBiMap.<Byte, String>builder()
|
||||||
|
.put((byte) 0x00, "")
|
||||||
|
.put((byte) 0x01, "http://www.")
|
||||||
|
.put((byte) 0x02, "https://www.")
|
||||||
|
.put((byte) 0x03, "http://")
|
||||||
|
.put((byte) 0x04, "https://")
|
||||||
|
.put((byte) 0x05, "tel:")
|
||||||
|
.put((byte) 0x06, "mailto:")
|
||||||
|
.put((byte) 0x07, "ftp://anonymous:anonymous@")
|
||||||
|
.put((byte) 0x08, "ftp://ftp.")
|
||||||
|
.put((byte) 0x09, "ftps://")
|
||||||
|
.put((byte) 0x0A, "sftp://")
|
||||||
|
.put((byte) 0x0B, "smb://")
|
||||||
|
.put((byte) 0x0C, "nfs://")
|
||||||
|
.put((byte) 0x0D, "ftp://")
|
||||||
|
.put((byte) 0x0E, "dav://")
|
||||||
|
.put((byte) 0x0F, "news:")
|
||||||
|
.put((byte) 0x10, "telnet://")
|
||||||
|
.put((byte) 0x11, "imap:")
|
||||||
|
.put((byte) 0x12, "rtsp://")
|
||||||
|
.put((byte) 0x13, "urn:")
|
||||||
|
.put((byte) 0x14, "pop:")
|
||||||
|
.put((byte) 0x15, "sip:")
|
||||||
|
.put((byte) 0x16, "sips:")
|
||||||
|
.put((byte) 0x17, "tftp:")
|
||||||
|
.put((byte) 0x18, "btspp://")
|
||||||
|
.put((byte) 0x19, "btl2cap://")
|
||||||
|
.put((byte) 0x1A, "btgoep://")
|
||||||
|
.put((byte) 0x1B, "tcpobex://")
|
||||||
|
.put((byte) 0x1C, "irdaobex://")
|
||||||
|
.put((byte) 0x1D, "file://")
|
||||||
|
.put((byte) 0x1E, "urn:epc:id:")
|
||||||
|
.put((byte) 0x1F, "urn:epc:tag:")
|
||||||
|
.put((byte) 0x20, "urn:epc:pat:")
|
||||||
|
.put((byte) 0x21, "urn:epc:raw:")
|
||||||
|
.put((byte) 0x22, "urn:epc:")
|
||||||
|
.put((byte) 0x23, "urn:nfc:")
|
||||||
|
.build();
|
||||||
|
|
||||||
|
private final Uri mUri;
|
||||||
|
|
||||||
|
private UriRecord(Uri uri) {
|
||||||
|
this.mUri = Preconditions.checkNotNull(uri);
|
||||||
|
}
|
||||||
|
|
||||||
|
@Override
|
||||||
|
public String getRecordType() {
|
||||||
|
return "Uri";
|
||||||
|
}
|
||||||
|
|
||||||
|
public Uri getUri() {
|
||||||
|
return mUri;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Convert {@link android.nfc.NdefRecord} into a {@link android.net.Uri}.
|
||||||
|
*
|
||||||
|
* TODO: This class does not handle NdefRecords where the TNF
|
||||||
|
* (Type Name Format) of the class is {@link android.nfc.NdefRecord#TNF_ABSOLUTE_URI}.
|
||||||
|
* This should be fixed.
|
||||||
|
*
|
||||||
|
* @throws IllegalArgumentException if the NdefRecord is not a
|
||||||
|
* record containing a URI.
|
||||||
|
*/
|
||||||
|
public static UriRecord parse(NdefRecord record) {
|
||||||
|
Preconditions.checkArgument(record.getTnf() == NdefRecord.TNF_WELL_KNOWN);
|
||||||
|
Preconditions.checkArgument(Arrays.equals(record.getType(), NdefRecord.RTD_URI));
|
||||||
|
|
||||||
|
byte[] payload = record.getPayload();
|
||||||
|
|
||||||
|
/*
|
||||||
|
* payload[0] contains the URI Identifier Code, per the
|
||||||
|
* NFC Forum "URI Record Type Definition" section 3.2.2.
|
||||||
|
*
|
||||||
|
* payload[1]...payload[payload.length - 1] contains the rest of
|
||||||
|
* the URI.
|
||||||
|
*/
|
||||||
|
|
||||||
|
String prefix = URI_PREFIX_MAP.get(payload[0]);
|
||||||
|
byte[] fullUri = Bytes.concat(
|
||||||
|
prefix.getBytes(Charsets.UTF_8),
|
||||||
|
Arrays.copyOfRange(payload, 1, payload.length));
|
||||||
|
|
||||||
|
return new UriRecord(Uri.parse(new String(fullUri, Charsets.UTF_8)));
|
||||||
|
}
|
||||||
|
|
||||||
|
public static boolean isUri(NdefRecord record) {
|
||||||
|
try {
|
||||||
|
parse(record);
|
||||||
|
return true;
|
||||||
|
} catch (IllegalArgumentException e) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -17,6 +17,7 @@
|
|||||||
package com.android.apps.tag;
|
package com.android.apps.tag;
|
||||||
|
|
||||||
import android.test.AndroidTestCase;
|
import android.test.AndroidTestCase;
|
||||||
|
import com.android.apps.tag.record.TextRecord;
|
||||||
import com.google.common.primitives.Bytes;
|
import com.google.common.primitives.Bytes;
|
||||||
import android.nfc.NdefRecord;
|
import android.nfc.NdefRecord;
|
||||||
|
|
||||||
@@ -46,6 +47,6 @@ public class NdefUtilTest extends AndroidTestCase {
|
|||||||
);
|
);
|
||||||
|
|
||||||
NdefRecord record = new NdefRecord(NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0], data);
|
NdefRecord record = new NdefRecord(NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0], data);
|
||||||
assertEquals(word, NdefUtil.toText(record));
|
assertEquals(word, TextRecord.parse(record).getText());
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@@ -18,6 +18,7 @@ package com.android.apps.tag;
|
|||||||
|
|
||||||
import android.test.AndroidTestCase;
|
import android.test.AndroidTestCase;
|
||||||
import android.nfc.NdefMessage;
|
import android.nfc.NdefMessage;
|
||||||
|
import com.android.apps.tag.record.SmartPoster;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Tests for {@link SmartPoster}.
|
* Tests for {@link SmartPoster}.
|
||||||
@@ -26,8 +27,8 @@ public class SmartPosterTest extends AndroidTestCase {
|
|||||||
public void testSmartPoster() throws Exception {
|
public void testSmartPoster() throws Exception {
|
||||||
NdefMessage msg = new NdefMessage(MockNdefMessages.REAL_NFC_MSG);
|
NdefMessage msg = new NdefMessage(MockNdefMessages.REAL_NFC_MSG);
|
||||||
|
|
||||||
SmartPoster poster = SmartPoster.from(msg.getRecords()[0]);
|
SmartPoster poster = SmartPoster.parse(msg.getRecords()[0]);
|
||||||
assertEquals("NFC Forum Type 4 Tag", poster.getTitle());
|
assertEquals("NFC Forum Type 4 Tag", poster.getTitle().getText());
|
||||||
assertEquals("http://www.nxp.com/nfc", poster.getUri().toString());
|
assertEquals("http://www.nxp.com/nfc", poster.getUriRecord().getUri().toString());
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user