private boolean writeToTag(NdefMessage message, NdefMessage messageWithoutPhoto, Ndef ndef)
throws IOException, FormatException {
int size = message.toByteArray().length;
int sizeSmall = messageWithoutPhoto.toByteArray().length;
ndef.connect();
if (!ndef.isWritable()) {
toast("Tag is read-only.");
return false;
}
NdefMessage messageToWrite = message;
if (ndef.getMaxSize() < size) {
if (ndef.getMaxSize() < sizeSmall) {
toast(getResources().getString(R.string.write_tag_failed_size, ndef.getMaxSize(), size));
return false;
} else {
messageToWrite = messageWithoutPhoto;
}
}
ndef.writeNdefMessage(messageToWrite);
return true;
}
public boolean writeNdefMessageToTag(NdefMessage message, Tag detectedTag) {
int size = message.toByteArray().length;
try {
Ndef ndef = Ndef.get(detectedTag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
Toast.makeText(this, "Tag is read-only.", Toast.LENGTH_SHORT).show();
return false;
}
if (ndef.getMaxSize() < size) {
Toast.makeText(
this,
"The data cannot written to tag,Tag capacity is "
+ ndef.getMaxSize()
+ " bytes, message is "
+ size
+ " bytes.",
Toast.LENGTH_SHORT)
.show();
return false;
}
ndef.writeNdefMessage(message);
ndef.close();
Toast.makeText(this, "Message is written tag.", Toast.LENGTH_SHORT).show();
return true;
} else {
NdefFormatable ndefFormat = NdefFormatable.get(detectedTag);
if (ndefFormat != null) {
try {
ndefFormat.connect();
ndefFormat.format(message);
ndefFormat.close();
Toast.makeText(this, "The data is written to the tag ", Toast.LENGTH_SHORT).show();
return true;
} catch (IOException e) {
Toast.makeText(this, "Failed to format tag", Toast.LENGTH_SHORT).show();
return false;
}
} else {
Toast.makeText(this, "NDEF is not supported", Toast.LENGTH_SHORT).show();
return false;
}
}
} catch (Exception e) {
Toast.makeText(this, "Write opreation is failed", Toast.LENGTH_SHORT).show();
}
return false;
}
public void writeTag(NdefMessage message, Tag tag) {
int size = message.toByteArray().length;
String mess;
try {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
this.status = 0;
this.message = "Tag is read-only";
}
if (ndef.getMaxSize() < size) {
mess = "Tag capacity is " + ndef.getMaxSize() + " bytes, message is " + size + " bytes.";
this.status = 0;
this.message = mess;
}
ndef.writeNdefMessage(message);
if (writeProtect) ndef.makeReadOnly();
mess = "Wrote message to pre-formatted tag.";
this.status = 1;
this.message = mess;
} else {
NdefFormatable format = NdefFormatable.get(tag);
if (format != null) {
try {
format.connect();
format.format(message);
mess = "Formatted tag and wrote message";
this.status = 1;
this.message = mess;
} catch (IOException e) {
mess = "Failed to format tag.";
this.status = 0;
this.message = mess;
}
} else {
mess = "Tag doesn't support NDEF.";
this.status = 0;
this.message = mess;
}
}
} catch (Exception e) {
mess = "Failed to write tag";
this.status = 0;
this.message = mess;
}
}
/**
* タグ書き込みを行う
*
* @param message
* @param tag
* @return
*/
boolean writeTag(NdefMessage message, Tag tag) {
int size = message.toByteArray().length;
try {
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);
mVib.vibrate(300);
toast("Wrote message to pre-formatted tag.");
return true;
} else {
NdefFormatable format = NdefFormatable.get(tag);
if (format != null) {
try {
format.connect();
format.format(message);
mVib.vibrate(300);
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) {
e.printStackTrace();
toast("Failed to write tag");
}
return false;
}
/** Metoda zapisujaca w tle wiadomosc do tagu NFC Przed sprawdzeniem formatuje tag */
@Override
protected Void doInBackground(Void... nop) {
int size = this.msg.toByteArray().length;
try {
Ndef ndef = Ndef.get(this.tag);
if (ndef == null) {
NdefFormatable formatable = NdefFormatable.get(this.tag);
if (formatable != null) {
try {
formatable.connect();
try {
formatable.format(this.msg);
} catch (Exception e) {
this.returnText = R.string.nfc_tag_refused_to_format;
}
} catch (Exception e) {
this.returnText = R.string.nfc_tag_refused_to_connect;
} finally {
formatable.close();
}
} else {
this.returnText = R.string.nfc_tag_does_not_support_ndef;
}
} else {
ndef.connect();
try {
if (!ndef.isWritable()) {
this.returnText = R.string.nfc_tag_is_read_only;
} else if (ndef.getMaxSize() < size) {
this.returnText = R.string.nfc_message_is_too_big;
} else {
ndef.writeNdefMessage(this.msg);
this.returnText = R.string.nfc_tag_saved;
this.returnStatus = Activity.RESULT_OK;
}
} catch (Exception e) {
this.returnText = R.string.nfc_tag_refused_to_connect;
} finally {
ndef.close();
}
}
} catch (Exception e) {
Log.e(TAG, "Exception when writing tag", e);
this.returnText = R.string.nfc_general_exception;
}
return (null);
}
/** Actually writes data into tag (sticker). */
private void writeTag(NdefMessage message, Tag tag) {
int size = message.toByteArray().length;
try {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
toast(R.string.tag_read_only);
return;
}
if (ndef.getMaxSize() < size) {
toast(R.string.exceeded_tag_capacity);
return;
}
ndef.writeNdefMessage(message);
toast(R.string.sticker_write_success);
} else {
NdefFormatable format = NdefFormatable.get(tag);
if (format != null) {
try {
format.connect();
format.format(message);
toast(R.string.sticker_write_success);
} catch (IOException e) {
toast(R.string.sticker_write_error);
}
} else {
toast(R.string.sticker_write_error);
}
}
} catch (FormatException e) {
toast(R.string.sticker_write_error);
} catch (IOException e) {
toast(R.string.sticker_write_error);
}
}
boolean writeTag(NdefMessage message, Tag tag) {
int size = message.toByteArray().length;
try {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
Toast.makeText(
this, "Cannot write to this tag. This tag is read-only.", Toast.LENGTH_LONG)
.show();
return false;
}
if (ndef.getMaxSize() < size) {
Toast.makeText(
this,
"Cannot write to this tag. Message size ("
+ size
+ " bytes) exceeds this tag's capacity of "
+ ndef.getMaxSize()
+ " bytes.",
Toast.LENGTH_LONG)
.show();
return false;
}
ndef.writeNdefMessage(message);
Toast.makeText(this, "A pre-formatted tag was successfully updated.", Toast.LENGTH_LONG)
.show();
return true;
} else {
NdefFormatable format = NdefFormatable.get(tag);
if (format != null) {
try {
format.connect();
format.format(message);
Toast.makeText(
this, "This tag was successfully formatted and updated.", Toast.LENGTH_LONG)
.show();
return true;
} catch (IOException e) {
Toast.makeText(
this, "Cannot write to this tag due to I/O Exception.", Toast.LENGTH_LONG)
.show();
return false;
}
} else {
Toast.makeText(
this,
"Cannot write to this tag. This tag does not support NDEF.",
Toast.LENGTH_LONG)
.show();
return false;
}
}
} catch (Exception e) {
Toast.makeText(this, "Cannot write to this tag due to an Exception.", Toast.LENGTH_LONG)
.show();
}
return false;
}