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make a vcard/vcal Ndef message on Android_text/x-vcard

作者：小丑西瓜9 | 2024-03-26 05:14:14

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text/x-vcard
[java] view plain copy print ?
  1. NfcAdapter adapter; 
  2. PendingIntent pendingIntent; 
  3. IntentFilter writeTagFilters[]; 
  4. Tag tag; 
  5. Context ctx; 
  6. boolean writeMode; 
  7.  
  8. @Override 
  9. public void onCreate(Bundle savedInstanceState) { 
  10.     super.onCreate(savedInstanceState); 
  11.     setContentView(R.layout.activity_text); 
  12.     getActionBar().setDisplayHomeAsUpEnabled(true); 
  13.  
  14.     ctx = this; 
  15.     Switch swWrite = (Switch) findViewById(R.id.switchWriteText); 
  16.     //final TextView msg = (TextView) findViewById(R.id.editText1); 
  17.     final String msg = "BEGIN:VCARD\n" + 
  18.             "VERSION:2.1\n" + 
  19.             "N:Gump;Forrest\n" + 
  20.             "FN:Forrest Gump\n" + 
  21.             "ORG:Bubba Gump Shrimp Co.\n" + 
  22.             "TITLE:Shrimp Man\n" + 
  23.             "TEL;WORK;VOICE111) 555-1212\n" + 
  24.             "TEL;HOME;VOICE404) 555-1212\n" + 
  25.             "ADR;WORK:;;100 Edge;Baytown;United\n" + 
  26.             "EMAIL;PREF;INTERNET:forrestgump@example.com\n " + 
  27.             "END:VCARD"; 
  28.     swWrite.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { 
  29.  
  30.         @Override 
  31.         public void onCheckedChanged(CompoundButton buttonView, 
  32.                 boolean isChecked) { 
  33.             if (isChecked) { 
  34.                 try { 
  35.                     if (tag == null) { 
  36.                         Toast.makeText(ctx, 
  37.                                 ctx.getString(R.string.error_detected), 
  38.                                 Toast.LENGTH_SHORT).show(); 
  39.                     } else { 
  40.                         write(msg, tag); 
  41.                         Toast.makeText(ctx, 
  42.                                 ctx.getString(R.string.ok_writing), 
  43.                                 Toast.LENGTH_LONG).show(); 
  44.                     } 
  45.                 } catch (IOException e) { 
  46.                     Toast.makeText(ctx, 
  47.                             ctx.getString(R.string.error_writing), 
  48.                             Toast.LENGTH_LONG).show(); 
  49.                     e.printStackTrace(); 
  50.                 } catch (FormatException e) { 
  51.                     Toast.makeText(ctx, 
  52.                             ctx.getString(R.string.error_writing), 
  53.                             Toast.LENGTH_LONG).show(); 
  54.                     e.printStackTrace(); 
  55.                 } 
  56.  
  57.             } 
  58.         } 
  59.     }); 
  60.  
  61.     /* INTENT FILTER */ 
  62.     adapter = NfcAdapter.getDefaultAdapter(this); 
  63.     pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, 
  64.             getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); 
  65.     IntentFilter tagDetected = new IntentFilter( 
  66.             NfcAdapter.ACTION_TAG_DISCOVERED); 
  67.     tagDetected.addCategory(Intent.CATEGORY_DEFAULT); 
  68.     writeTagFilters = new IntentFilter[] { tagDetected }; 
  69. } 
  70.  
  71. @Override 
  72. public boolean onCreateOptionsMenu(Menu menu) { 
  73.     getMenuInflater().inflate(R.menu.activity_text, menu); 
  74.     return true; 
  75. } 
  76.  
  77. @Override 
  78. public boolean onOptionsItemSelected(MenuItem item) { 
  79.     switch (item.getItemId()) { 
  80.     case android.R.id.home: 
  81.         NavUtils.navigateUpFromSameTask(this); 
  82.         return true; 
  83.     } 
  84.     return super.onOptionsItemSelected(item); 
  85. } 
  86.  
  87. private void write(String text, Tag tag) throws IOException, 
  88.         FormatException { 
  89.  
  90.     NdefRecord[] records = { createRecord(text) }; 
  91.     NdefMessage message = new NdefMessage(records); 
  92.     // Get an instance of Ndef for the tag. 
  93.     Ndef ndef = Ndef.get(tag); 
  94.     // Enable I/O 
  95.     ndef.connect(); 
  96.     // Write the message 
  97.     ndef.writeNdefMessage(message); 
  98.     // Close the connection 
  99.     ndef.close(); 
  100. } 
  101.  
  102. private NdefRecord createRecord(String text) 
  103.         throws UnsupportedEncodingException { 
  104.     String msg = "BEGIN:VCARD\n" + 
  105.             "VERSION:2.1\n" + 
  106.             "N:Gump;Forrest\n" + 
  107.             "FN:Forrest Gump\n" + 
  108.             "ORG:Bubba Gump Shrimp Co.\n" + 
  109.             "TITLE:Shrimp Man\n" + 
  110.             "TEL;WORK;VOICE:55-1212\n" + 
  111.             "TEL;HOME;VOICE:55-1212\n" + 
  112.             "ADR;WORK:;;100 Edge;Ban;United\n" + 
  113.             "EMAIL;PREF;INTERNET:p@example.com\n " + 
  114.             "END:VCARD"; 
  115.  
  116.             byte[] textBytes = msg.getBytes(); 
  117.  
  118.  
  119.             NdefRecord textRecord = new NdefRecord(NdefRecord.TNF_MIME_MEDIA, 
  120.             "text/x-vCard".getBytes(), new byte[] {}, textBytes); 
  121.  
  122.     return textRecord; 
  123. } 
  124.  
  125. @Override 
  126. protected void onNewIntent(Intent intent) { 
  127.     if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) { 
  128.         tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); 
  129.         Toast.makeText(this, 
  130.                 this.getString(R.string.ok_detection) + tag.toString(), 
  131.                 Toast.LENGTH_LONG).show(); 
  132.     } 
  133. } 
  134.  
  135. @Override 
  136. public void onPause() { 
  137.     super.onPause(); 
  138.     WriteModeOff(); 
  139. } 
  140.  
  141. @Override 
  142. public void onResume() { 
  143.     super.onResume(); 
  144.     WriteModeOn(); 
  145. } 
  146.  
  147. private void WriteModeOn() { 
  148.     writeMode = true; 
  149.     adapter.enableForegroundDispatch(this, pendingIntent, writeTagFilters, 
  150.             null); 
  151. } 
  152.  
  153. private void WriteModeOff() { 
  154.     writeMode = false; 
  155.     adapter.disableForegroundDispatch(this); 
  156. } 
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