本文整理汇总了Java中android.nfc.tech.Ndef.close方法的典型用法代码示例。如果您正苦于以下问题：Java Ndef.close方法的具体用法？Java Ndef.close怎么用？Java Ndef.close使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.nfc.tech.Ndef的用法示例。
在下文中一共展示了Ndef.close方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getNdefUsedSize
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private DataReply getNdefUsedSize() {
DataReply dataReply = new DataReply();
int size = 0;
if (currentTag != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1) {
Ndef ndef = Ndef.get(currentTag);
if (ndef != null && ndef.getCachedNdefMessage() != null)
size = ndef.getCachedNdefMessage().toByteArray().length;
else {
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
try {
if (ndef != null) ndef.close();
} catch (IOException e) {
}
}
}
dataReply.setIntegerData(size);
return dataReply;
}
示例2: getNdefMaxSize
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private DataReply getNdefMaxSize() {
DataReply dataReply = new DataReply();
int maxSize = 0;
if (currentTag != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1) {
Ndef ndef = Ndef.get(currentTag);
if (ndef != null) {
maxSize = ndef.getMaxSize();
if (maxSize <= 0){
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
}else {
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
try {
if (ndef != null) ndef.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
dataReply.setIntegerData(maxSize);
return dataReply;
}
示例3: writeToNfc
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private void writeToNfc(Ndef ndef, String message){
mTvMessage.setText(getString(R.string.message_write_progress));
if (ndef != null) {
try {
ndef.connect();
NdefRecord mimeRecord = NdefRecord.createMime("text/plain", message.getBytes(Charset.forName("US-ASCII")));
ndef.writeNdefMessage(new NdefMessage(mimeRecord));
ndef.close();
//Write Successful
mTvMessage.setText(getString(R.string.message_write_success));
} catch (IOException | FormatException e) {
e.printStackTrace();
mTvMessage.setText(getString(R.string.message_write_error));
} finally {
mProgress.setVisibility(View.GONE);
}
}
}
示例4: writeTag
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
public void writeTag(Tag tag, NdefMessage message)
{
if (tag != null) {
try {
Ndef ndefTag = Ndef.get(tag);
if (ndefTag == null) {
// Let's try to format the Tag in NDEF
NdefFormatable nForm = NdefFormatable.get(tag);
if (nForm != null) {
nForm.connect();
nForm.format(message);
nForm.close();
}
}
else {
ndefTag.connect();
ndefTag.writeNdefMessage(message);
ndefTag.close();
}
}
catch(Exception e) {
e.printStackTrace();
}
}
}
示例5: writableTag
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
public static boolean writableTag(Tag tag) {
try {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
ndef.close();
return false;
}
ndef.close();
return true;
}
} catch (Exception e) {
}
return false;
}
示例6: doInBackground
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
@Override
protected String doInBackground(Tag... params) {
Tag tag = params[0];
Ndef ndef = Ndef.get(tag);
if (ndef == null) {
// NDEF is not supported by this Tag.
return null;
}
try {
NdefMessage msg = new NdefMessage(
new NdefRecord[] { NdefRecord.createMime(
"application/pubk.com.sawyer.easypgp", publicKeyBytes) });
ndef.connect();
ndef.writeNdefMessage(msg);
ndef.close();
return "Success";
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
示例7: writableTag
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private boolean writableTag(Tag tag) {
try {
Ndef ndef = Ndef.get(tag);
if (ndef != null) {
ndef.connect();
if (!ndef.isWritable()) {
ToastUtils.makeWarningToast(this, "Tag is Read-Only.");
ndef.close();
return false;
}
ndef.close();
return true;
}
} catch (Exception e) {
Logger.e(TAG, e.getLocalizedMessage());
ToastUtils.makeWarningToast(this, "Failed to Read Tag");
}
return false;
}
示例8: writeMessage
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private void writeMessage(Tag tag, NdefMessage ndefMessage)
{
try
{
if (tag == null)
{
Toast.makeText(this, "An Error has Occurred, Please Try Again", Toast.LENGTH_LONG).show();
}
Ndef ndef = Ndef.get(tag);
if (ndef == null)
{
formatTag(tag, ndefMessage);
}
else
{
ndef.connect();
if (!ndef.isWritable())
{
Toast.makeText(this, "Tag is not Writable", Toast.LENGTH_LONG).show();
ndef.close();
return;
}
ndef.writeNdefMessage(ndefMessage);
ndef.close();
}
}
catch (Exception e)
{
Log.e("writeMessage", e.getMessage());
}
}
示例9: getNdefRecordCount
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private DataReply getNdefRecordCount() {
DataReply dataReply = new DataReply();
int recordCount = 0;
if (currentTag != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1) {
Ndef ndef = Ndef.get(currentTag);
if (ndef != null) {
if (ndef.getCachedNdefMessage() != null)
recordCount = ndef.getCachedNdefMessage().getRecords().length;
else
recordCount = 0;
} else {
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
try {
if (ndef != null) ndef.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
if (recordCount > 256) {
dataReply.setError(INDEX_OUT_OF_BOUNDS);
recordCount = 256;
}
dataReply.setIntegerData(recordCount);
return dataReply;
}
示例10: getNdefRecordTypeLength
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private DataReply getNdefRecordTypeLength(int recordNumber) {
DataReply dataReply = new DataReply();
int length = 0;
if (currentTag != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1) {
Ndef ndef = Ndef.get(currentTag);
if (ndef != null) {
if (ndef.getCachedNdefMessage() != null)
if (ndef.getCachedNdefMessage().getRecords().length > recordNumber) {
NdefRecord record = ndef.getCachedNdefMessage().getRecords()[recordNumber];
length = record.getType().length;
} else {
dataReply.setError(RECORD_NOT_FOUND);
return dataReply;
}
else {
dataReply.setError(RECORD_NOT_FOUND);
return dataReply;
}
} else {
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
try {
if (ndef != null) ndef.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
dataReply.setIntegerData(length);
return dataReply;
}
示例11: getNdefRecordDataLength
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private DataReply getNdefRecordDataLength(int recordNumber) {
DataReply dataReply = new DataReply();
int length = 0;
if (currentTag != null) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1) {
Ndef ndef = Ndef.get(currentTag);
if (ndef != null) {
if (ndef.getCachedNdefMessage() != null)
if (ndef.getCachedNdefMessage().getRecords().length > recordNumber) {
NdefRecord record = ndef.getCachedNdefMessage().getRecords()[recordNumber];
length = record.getPayload().length;
} else {
dataReply.setError(RECORD_NOT_FOUND);
return dataReply;
}
else {
dataReply.setError(RECORD_NOT_FOUND);
return dataReply;
}
} else {
dataReply.setError(TAG_READING_ERROR);
return dataReply;
}
try {
if (ndef != null) ndef.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
dataReply.setIntegerData(length);
return dataReply;
}
示例12: writeNdefMessage
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private void writeNdefMessage(Tag tag, NdefMessage ndefMessage) {
try {
if (tag == null) {
Toast.makeText(this, "Tag object cannot be null", Toast.LENGTH_SHORT).show();
return;
}
Ndef ndef = Ndef.get(tag);
if (ndef == null) {
// format tag with the ndef format and writes the message.
formatTag(tag, ndefMessage);
} else {
ndef.connect();
if (!ndef.isWritable()) {
Toast.makeText(this, "Tag is not writable!", Toast.LENGTH_SHORT).show();
ndef.close();
return;
}
ndef.writeNdefMessage(ndefMessage);
ndef.close();
Toast.makeText(this, "Tag writen!", Toast.LENGTH_SHORT).show();
}
} catch (Exception e) {
Log.e("writeNdefMessage", e.getMessage());
}
}
示例13: doInBackground
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
@Override
protected Boolean doInBackground(Intent... params) {
Intent intent = params[0];
Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
NdefMessage message = this.tag.encode();
if (tag != null) {
try {
Ndef ndefTag = Ndef.get(tag);
if (ndefTag == null) {
NdefFormatable ndefForm = NdefFormatable.get(tag);
if (ndefForm != null) {
ndefForm.connect();
ndefForm.format(message);
ndefForm.close();
}
}
else {
ndefTag.connect();
ndefTag.writeNdefMessage(message);
ndefTag.close();
}
return true;
}
catch(Exception e) {
e.printStackTrace();
}
}
return false;
}
示例14: readFromNFC
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private void readFromNFC(Ndef ndef) {
try {
ndef.connect();
NdefMessage ndefMessage = ndef.getNdefMessage();
String message = new String(ndefMessage.getRecords()[0].getPayload());
Log.d(TAG, "readFromNFC: "+message);
mTvMessage.setText(message);
ndef.close();
} catch (IOException | FormatException e) {
e.printStackTrace();
}
}
示例15: write
import android.nfc.tech.Ndef; //导入方法依赖的package包/类
private void write(String text, Tag tag) throws IOException, FormatException {
/*
http://stackoverflow.com/questions/11427997/android-app-to-add-mutiple-record-in-nfc-tag
*/
// We want to include a reference to the app, for those who don't have one.
// This way, their phones will open this app when a tag encoded with this app is used.
String arrPackageName = "com.briankhuu.nfcmessageboard";
final int AAR_RECORD_BYTE_LENGTH = 50; // I guess i suck at byte counting. well at least this should still work. This approach does lead to wasted space however.
//infoMsg = "\n\n---\n To post here. Use the "NFC Messageboard" app: https://play.google.com/store/search?q=NFC%20Message%20Board ";
// Trim to size (for now this is just a dumb trimmer...) (Later on, you want to remove whole post first
// Seem that header and other things takes 14 chars. For safety. Lets just remove 20.
// 0 (via absolute value) < valid entry size < Max Tag size
final int NDEF_RECORD_HEADER_SIZE = 6;
final int NDEF_STRING_PAYLOAD_HEADER_SIZE = 4;
int maxTagByteLength = Math.abs(tag_size - NDEF_RECORD_HEADER_SIZE - NDEF_STRING_PAYLOAD_HEADER_SIZE - AAR_RECORD_BYTE_LENGTH);
if (text.length() >= maxTagByteLength ){ // Write like normal if content to write will fit without modification
// Else work out what to remove. For now, just do a dumb trimming. // Unicode characters may take more than 1 byte.
text = truncateWhenUTF8(text, maxTagByteLength);
}
// Write tag
//NdefRecord[] records = { createRecord(text), aarNdefRecord };
NdefMessage message = new NdefMessage(new NdefRecord[]{
createRecord(text)
,NdefRecord.createApplicationRecord(arrPackageName)
});
Ndef ndef = Ndef.get(tag);
ndef.connect();
ndef.writeNdefMessage(message);
ndef.close();
}