List of usage examples for android.nfc.tech Ndef writeNdefMessage
public void writeNdefMessage(NdefMessage msg) throws IOException, FormatException
From source file:Main.java
/** * Write the current IP address of the Android device to an NFC Tag. Must be connected to wifi network. * * @param tag NFC Tag to write message to * @param wifi WifiManager which can be used to retrieve IP address * @throws IOException//www . j av a2 s.co m * @throws FormatException * @throws IllegalStateException when Android device is not connected to Wifi network */ public static void writeIpAddress(Tag tag, WifiManager wifi) throws IOException, FormatException, IllegalStateException { String ipAddress = getIpAddr(wifi); if (ipAddress.equals("0.0.0.0")) { throw new IllegalStateException("Not connected to Wifi"); } NdefRecord[] records = { createRecord(ipAddress) }; NdefMessage message = new NdefMessage(records); Ndef ndef = Ndef.get(tag); ndef.connect(); ndef.writeNdefMessage(message); ndef.close(); }
From source file:Main.java
public static boolean writeNFCTag(NdefMessage message, Tag tag) { int size = message.toByteArray().length; try {//from ww w .j a v a 2 s . co m Ndef ndef = Ndef.get(tag); if (ndef != null) { ndef.connect(); if (!ndef.isWritable()) { return false; } if (ndef.getMaxSize() < size) { return false; } ndef.writeNdefMessage(message); return true; } else { NdefFormatable format = NdefFormatable.get(tag); if (format != null) { try { format.connect(); format.format(message); return true; } catch (IOException e) { return false; } } else { return false; } } } catch (Exception e) { return false; } }
From source file:com.sftoolworks.nfcoptions.SelectActivity.java
protected void writeSelection(Intent intent) { ListView list = (ListView) findViewById(R.id.listView1); if (list.getCount() == 0) return;/*from ww w. j av a2 s . co m*/ try { Object[] results = ((OptionListAdapter) list.getAdapter()).getCheckedValues(); JSONObject obj = new JSONObject(); JSONArray array = new JSONArray(); if (null != results) { for (Object result : results) array.put(result.toString()); } obj.put("selection", array); obj.put("key", selectKey); SharedPreferences sharedPref = getSharedPreferences(getString(R.string.preference_file_key), Context.MODE_PRIVATE); // android studio (0.5.1) decorates this line as an error (some // of the time, anyway) but it's not an error. String identifier = sharedPref.getString(getString(R.string.user_id_key), ""); if (identifier.length() > 0) obj.put("user", identifier); String json = obj.toString(0); String outbound = "\u0002en"; outbound += json; NdefRecord textRecord = new NdefRecord(NdefRecord.TNF_WELL_KNOWN, new byte[] { 'T' }, null, outbound.getBytes()); NdefMessage message = new NdefMessage(new NdefRecord[] { textRecord }); Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); Ndef ndef = Ndef.get(tag); ndef.connect(); ndef.writeNdefMessage(message); ndef.close(); Toast.makeText(this, R.string.write_ok, Toast.LENGTH_LONG).show(); new Timer().schedule(new TimerTask() { @Override public void run() { finish(); } }, 1500); } catch (Exception e) { Log.d(TAG, e.toString()); String err = getString(R.string.tag_write_err) + "\n" + e.getMessage(); Toast.makeText(this, err, Toast.LENGTH_LONG).show(); } }
From source file:com.hybris.mobile.activity.NFCWriteActivity.java
@Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); // default failed setResult(RESULT_CANCELED);/*from ww w. jav a 2 s . c o m*/ if (NFCUtil.supportsNdef(tag)) { Ndef ndef = Ndef.get(tag); try { int maxSize = ndef.getMaxSize(); int messageSize = this.msg.toByteArray().length; if (ndef.isWritable() && maxSize > messageSize) { ndef.connect(); ndef.writeNdefMessage(this.msg); if (getResources().getBoolean(R.bool.nfc_read_only)) { if (ndef.canMakeReadOnly()) { boolean success = ndef.makeReadOnly(); if (!success) Toast.makeText(this, "Unable to make tag readonly!", Toast.LENGTH_LONG).show(); else Toast.makeText(this, "Tag is now readonly!", Toast.LENGTH_LONG).show(); } else { Toast.makeText(this, "This tag cannot be made readonly!", Toast.LENGTH_LONG).show(); } } setResult(RESULT_OK); showDialogFragmentWithMessage(R.string.nfc_tag_written); } else { showDialogFragmentWithMessage(R.string.error_nfc_readonly_size); } } catch (IOException e) { LoggingUtils.e(LOG_CAT, getString(R.string.error_nfc_io), e, Hybris.getAppContext()); } catch (FormatException e) { LoggingUtils.e(LOG_CAT, getString(R.string.error_nfc_format), e, Hybris.getAppContext()); } finally { try { ndef.close(); } catch (IOException e) { } } } else if (NFCUtil.supportsNdefFormatable(tag)) { NdefFormatable ndefFormatable = NdefFormatable.get(tag); try { ndefFormatable.connect(); if (getResources().getBoolean(R.bool.nfc_read_only)) { ndefFormatable.formatReadOnly(this.msg); } else { ndefFormatable.format(this.msg); } setResult(RESULT_OK); showDialogFragmentWithMessage(R.string.nfc_tag_written); } catch (IOException e) { LoggingUtils.e(LOG_CAT, getString(R.string.error_nfc_io), e, Hybris.getAppContext()); } catch (FormatException e) { LoggingUtils.e(LOG_CAT, getString(R.string.error_nfc_format), e, Hybris.getAppContext()); } finally { try { ndefFormatable.close(); } catch (IOException e) { } } } else { showDialogFragmentWithMessage(R.string.error_nfc_no_ndef); } }
From source file:org.openhab.habdroid.ui.OpenHABWriteTagActivity.java
private void writeTag(Tag tag, String uri) { Log.d(TAG, "Creating tag object for URI " + uri); TextView writeTagMessage = findViewById(R.id.write_tag_message); NdefRecord[] ndefRecords = new NdefRecord[] { NdefRecord.createUri(uri) }; NdefMessage message = new NdefMessage(ndefRecords); NdefFormatable ndefFormatable = NdefFormatable.get(tag); if (ndefFormatable != null) { Log.d(TAG, "Tag is uninitialized, formating"); try {/* w w w . j a va 2 s .c om*/ ndefFormatable.connect(); ndefFormatable.format(message); ndefFormatable.close(); writeTagMessage.setText(R.string.info_write_tag_finished); autoCloseActivity(); } catch (IOException | FormatException e) { Log.e(TAG, "Writing to unformatted tag failed: " + e); writeTagMessage.setText(R.string.info_write_failed); } } else { Log.d(TAG, "Tag is initialized, writing"); Ndef ndef = Ndef.get(tag); if (ndef != null) { try { Log.d(TAG, "Connecting"); ndef.connect(); Log.d(TAG, "Writing"); if (ndef.isWritable()) { ndef.writeNdefMessage(message); } Log.d(TAG, "Closing"); ndef.close(); writeTagMessage.setText(R.string.info_write_tag_finished); autoCloseActivity(); } catch (IOException | FormatException e) { Log.e(TAG, "Writing to formatted tag failed: " + e); writeTagMessage.setText(R.string.info_write_failed); } } else { Log.e(TAG, "Ndef == null"); writeTagMessage.setText(R.string.info_write_failed); } } }
From source file:org.sufficientlysecure.keychain.ui.PassphraseWizardActivity.java
private void write(Tag tag) throws IOException, FormatException { //generate new random key and write them on the tag SecureRandom sr = new SecureRandom(); sr.nextBytes(output);/*from w w w.j a v a 2 s .c om*/ NdefRecord[] records = { createRecord(output.toString()) }; NdefMessage message = new NdefMessage(records); Ndef ndef = Ndef.get(tag); ndef.connect(); ndef.writeNdefMessage(message); ndef.close(); }
From source file:jp.co.brilliantservice.android.writertdtext.HomeActivity.java
/** * NdefMessageNdef??????//from w w w . j av a 2s.c o m * * @param ndef * @param message */ private void writeNdefToNdefTag(Ndef ndef, NdefMessage message) { int size = message.toByteArray().length; try { ndef.connect(); if (!ndef.isWritable()) { Toast.makeText(getApplicationContext(), "Read Only...", Toast.LENGTH_SHORT).show(); return; } if (ndef.getMaxSize() < size) { Toast.makeText(getApplicationContext(), "Over Size...", Toast.LENGTH_SHORT).show(); return; } ndef.writeNdefMessage(message); } catch (IOException e) { throw new RuntimeException(e); } catch (FormatException e) { throw new RuntimeException(e); } finally { try { ndef.close(); } catch (IOException e) { // ignore } } }
From source file:mai.whack.StickyNotesActivity.java
boolean writeTag(NdefMessage message, Tag tag) { int size = message.toByteArray().length; try {/* www . j av a 2 s .c o m*/ Ndef ndef = Ndef.get(tag); if (ndef != null) { ndef.connect(); if (!ndef.isWritable()) { toast("Tag is read-only."); return false; } if (ndef.getMaxSize() < size) { toast("Tag capacity is " + ndef.getMaxSize() + " bytes, message is " + size + " bytes."); return false; } ndef.writeNdefMessage(message); toast("Wrote message to pre-formatted tag."); return true; } else { NdefFormatable format = NdefFormatable.get(tag); if (format != null) { try { format.connect(); format.format(message); toast("Formatted tag and wrote message"); return true; } catch (IOException e) { toast("Failed to format tag."); return false; } } else { toast("Tag doesn't support NDEF."); return false; } } } catch (Exception e) { toast("Failed to write tag"); } return false; }
From source file:st.alr.homA.ActivityQuickpublishNfc.java
private boolean write(String text, Tag tag) { boolean success = true; NdefRecord aar = NdefRecord.createApplicationRecord("st.alr.homA"); NdefRecord[] records = { createRecord(text), aar }; NdefMessage ndefMsg = new NdefMessage(records); try {/* w ww . j a va2 s. c o m*/ Ndef ndef = Ndef.get(tag); if (ndef != null) { ndef.connect(); if (!ndef.isWritable()) { publishProgress(getResources().getString(R.string.nfcWriteDialogTagReadOnly), false); success = false; } if (ndef.getMaxSize() < ndefMsg.getByteArrayLength()) { publishProgress( getResources().getString(R.string.nfcWriteDialogTagCapacityIs) + ndef.getMaxSize() + " byte" + getResources().getString(R.string.nfcWriteDialogTagMessageSizeIs) + ndefMsg.getByteArrayLength() + "byte.", false); success = false; } ndef.writeNdefMessage(ndefMsg); success = true; } else { NdefFormatable format = NdefFormatable.get(tag); if (format != null) { try { format.connect(); format.format(ndefMsg); publishProgress(getResources().getString(R.string.nfcWriteDialogTagFormatedAndWrote), true); success = true; } catch (IOException e) { publishProgress(getResources().getString(R.string.nfcWriteDialogTagFailedToFormat), false); success = false; } } else { publishProgress(getResources().getString(R.string.nfcWriteDialogTagNoNDEFSupport), false); success = false; } } } catch (Exception e) { Log.e(this.toString(), getResources().getString(R.string.nfcWriteDialogTagFailedToWrite) + " (" + e.getMessage() + ")", e); } return success; }
From source file:com.piusvelte.taplock.client.core.TapLockSettings.java
@Override protected void onResume() { super.onResume(); Intent intent = getIntent();//w w w .j a va2 s . com if (mInWriteMode) { if (intent != null) { String action = intent.getAction(); if (mInWriteMode && NfcAdapter.ACTION_TAG_DISCOVERED.equals(action) && intent.hasExtra(EXTRA_DEVICE_NAME)) { Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); String name = intent.getStringExtra(EXTRA_DEVICE_NAME); if ((tag != null) && (name != null)) { // write the device and address String lang = "en"; // don't write the passphrase! byte[] textBytes = name.getBytes(); byte[] langBytes = null; int langLength = 0; try { langBytes = lang.getBytes("US-ASCII"); langLength = langBytes.length; } catch (UnsupportedEncodingException e) { Log.e(TAG, e.toString()); } int textLength = textBytes.length; byte[] payload = new byte[1 + langLength + textLength]; // set status byte (see NDEF spec for actual bits) payload[0] = (byte) langLength; // copy langbytes and textbytes into payload if (langBytes != null) { System.arraycopy(langBytes, 0, payload, 1, langLength); } System.arraycopy(textBytes, 0, payload, 1 + langLength, textLength); NdefRecord record = new NdefRecord(NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0], payload); NdefMessage message = new NdefMessage( new NdefRecord[] { record, NdefRecord.createApplicationRecord(getPackageName()) }); // Get an instance of Ndef for the tag. Ndef ndef = Ndef.get(tag); if (ndef != null) { try { ndef.connect(); if (ndef.isWritable()) { ndef.writeNdefMessage(message); } ndef.close(); Toast.makeText(this, "tag written", Toast.LENGTH_LONG).show(); } catch (IOException e) { Log.e(TAG, e.toString()); } catch (FormatException e) { Log.e(TAG, e.toString()); } } else { NdefFormatable format = NdefFormatable.get(tag); if (format != null) { try { format.connect(); format.format(message); format.close(); Toast.makeText(getApplicationContext(), "tag written", Toast.LENGTH_LONG); } catch (IOException e) { Log.e(TAG, e.toString()); } catch (FormatException e) { Log.e(TAG, e.toString()); } } } mNfcAdapter.disableForegroundDispatch(this); } } } mInWriteMode = false; } else { SharedPreferences sp = getSharedPreferences(KEY_PREFS, MODE_PRIVATE); onSharedPreferenceChanged(sp, KEY_DEVICES); // check if configuring a widget if (intent != null) { Bundle extras = intent.getExtras(); if (extras != null) { final String[] displayNames = TapLock.getDeviceNames(mDevices); final int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); if (appWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID) { mDialog = new AlertDialog.Builder(TapLockSettings.this).setTitle("Select device for widget") .setItems(displayNames, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // set the successful widget result Intent resultValue = new Intent(); resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId); setResult(RESULT_OK, resultValue); // broadcast the new widget to update JSONObject deviceJObj = mDevices.get(which); dialog.cancel(); TapLockSettings.this.finish(); try { sendBroadcast(TapLock .getPackageIntent(TapLockSettings.this, TapLockWidget.class) .setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE) .putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId) .putExtra(EXTRA_DEVICE_NAME, deviceJObj.getString(KEY_NAME))); } catch (JSONException e) { Log.e(TAG, e.toString()); } } }).create(); mDialog.show(); } } } // start the service before binding so that the service stays around for faster future connections startService(TapLock.getPackageIntent(this, TapLockService.class)); bindService(TapLock.getPackageIntent(this, TapLockService.class), this, BIND_AUTO_CREATE); int serverVersion = sp.getInt(KEY_SERVER_VERSION, 0); if (mShowTapLockSettingsInfo && (mDevices.size() == 0)) { if (serverVersion < SERVER_VERSION) sp.edit().putInt(KEY_SERVER_VERSION, SERVER_VERSION).commit(); mShowTapLockSettingsInfo = false; Intent i = TapLock.getPackageIntent(this, TapLockInfo.class); i.putExtra(EXTRA_INFO, getString(R.string.info_taplocksettings)); startActivity(i); } else if (serverVersion < SERVER_VERSION) { // TapLockServer has been updated sp.edit().putInt(KEY_SERVER_VERSION, SERVER_VERSION).commit(); mDialog = new AlertDialog.Builder(TapLockSettings.this).setTitle(R.string.ttl_hasupdate) .setMessage(R.string.msg_hasupdate) .setNeutralButton(R.string.button_getserver, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); mDialog = new AlertDialog.Builder(TapLockSettings.this) .setTitle(R.string.msg_pickinstaller) .setItems(R.array.installer_entries, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); final String installer_file = getResources() .getStringArray(R.array.installer_values)[which]; mDialog = new AlertDialog.Builder(TapLockSettings.this) .setTitle(R.string.msg_pickdownloader) .setItems(R.array.download_entries, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); String action = getResources() .getStringArray( R.array.download_values)[which]; if (ACTION_DOWNLOAD_SDCARD.equals(action) && copyFileToSDCard(installer_file)) Toast.makeText(TapLockSettings.this, "Done!", Toast.LENGTH_SHORT) .show(); else if (ACTION_DOWNLOAD_EMAIL .equals(action) && copyFileToSDCard( installer_file)) { Intent emailIntent = new Intent( android.content.Intent.ACTION_SEND); emailIntent.setType( "application/java-archive"); emailIntent.putExtra(Intent.EXTRA_TEXT, getString( R.string.email_instructions)); emailIntent.putExtra( Intent.EXTRA_SUBJECT, getString(R.string.app_name)); emailIntent.putExtra( Intent.EXTRA_STREAM, Uri.parse("file://" + Environment .getExternalStorageDirectory() .getPath() + "/" + installer_file)); startActivity(Intent.createChooser( emailIntent, getString( R.string.button_getserver))); } } }) .create(); mDialog.show(); } }).create(); mDialog.show(); } }).create(); mDialog.show(); } } }