package skyseraph.easytagwrite; import skyseraph.android.util.CustomDialog;
import skyseraph.android.util.LogUtil;
import skyseraph.android.util.MyConstant;
import skyseraph.android.util.nfc.BobNdefMessage; import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.PendingIntent;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.graphics.Color;
import android.nfc.NdefMessage;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.nfc.tech.Ndef;
import android.nfc.tech.NdefFormatable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Settings;
import android.util.DisplayMetrics;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast; import java.io.IOException; public class MainActivity extends Activity {
private static final String TAG_ASSIST = "[MainActivity]-"; // NFC Declarations
private NfcAdapter mNfcAdapter = null; private IntentFilter[] mFilters = null; private PendingIntent mPendingIntent = null; private String[][] mTechLists = null; private Context mContext; private NdefMessage NDEFMsg2Write = null; // UI
private EditText mEditText1 = null; private EditText mEditText2 = null; private TextView mTextView1 = null; private TextView mTextView2 = null; private Spinner mSpinner = null; private ArrayAdapter mAdapter = null; private Button writeUrlButton, saveUrlButton, exitButton; private static final String[] spinnerStr = {
"TNF_ABSOLUTE_URI", "TNF_MIME_MEDIA", "TNF_WELL_KNOWN RTD-TEXT",
"TNF_WELL_KNOWN RTD-URI", "TNF_EXTERNAL_TYPE",
}; private String payloadStr = ""; private String typeStr = ""; private int tagTypeFlag = 0;// private AlertDialog alertDialog = null; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this; checkNFCFunction(); // NFC Check
initUI();// Init UI
initNFC();// Init NFC
} @Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
} @Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
super.onOptionsItemSelected(item);
switch (item.getItemId())
// item clicked
{
case R.id.action_settings:
// Intent setnfc = new
// Intent(Settings.ACTION_WIRELESS_SETTINGS);
Intent setnfc = new Intent(Settings.ACTION_NFC_SETTINGS);
startActivity(setnfc);
break;
case R.id.action_about:
dialog();
break;
}
return true;
} protected void dialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setTitle(getString(R.string.dialog_notice));
alertDialog = builder.create();
builder.setCancelable(true);// back
alertDialog.setCanceledOnTouchOutside(true);
alertDialog.show();
} @Override
public void onResume() {
super.onResume();
if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(getIntent().getAction())) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "ACTION_TECH_DISCOVERED");
// get NFC object
Tag detectTag = getIntent().getParcelableExtra(NfcAdapter.EXTRA_TAG);
// validate that this tag can be written
if (supportedTechs(detectTag.getTechList())) {
switch (tagTypeFlag) {
case 0:// ABSOLUTE_URI
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_ABSOLUTE_URI(payloadStr, false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag); // By
// Function
new WriteTask(this, NDEFMsg2Write, detectTag).execute(); // By
// AsyncTask
// Class
break;
case 1:// MIME_MEDIA
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_MIME_MEDIA(payloadStr,
"application/skyseraph.nfc_demo", false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag);
new WriteTask(this, NDEFMsg2Write, detectTag).execute();
break;
case 2:// RTD_TEXT
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_TEXT(payloadStr, false,
false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag);
new WriteTask(this, NDEFMsg2Write, detectTag).execute();
break;
case 3:// RTD_URI
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_URI(payloadStr, (byte)0x01,
false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag);
new WriteTask(this, NDEFMsg2Write, detectTag).execute();
break;
case 4:// EXTERNAL_TYPE
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_EXTERNAL_TYPE(payloadStr, false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag);
new WriteTask(this, NDEFMsg2Write, detectTag).execute();
break;
default:// RTD_URI
NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_URI(payloadStr, (byte)0x01,
false);
// writeNdefMessageToTag(NDEFMsg2Write, detectTag);
new WriteTask(this, NDEFMsg2Write, detectTag).execute();
break;
}
} else {
Toast.makeText(mContext, "This tag type is not supported", Toast.LENGTH_SHORT).show();
}
}
} @Override
public void onNewIntent(Intent intent) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "Discovered tag with intent: " + intent);
setIntent(intent);
} @Override
public void onPause() {
super.onPause();
if (alertDialog != null)
alertDialog.cancel();
disableForegroundDispatch();
} private void initUI() {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into initUI");
// TODO Auto-generated method stub
mEditText1 = (EditText)this.findViewById(R.id.write_ndef_tag_et1);
mEditText2 = (EditText)this.findViewById(R.id.write_ndef_tag_et2);
mTextView1 = (TextView)findViewById(R.id.write_ndef_tag_tv1);
mTextView2 = (TextView)findViewById(R.id.write_ndef_tag_tv2); saveUrlButton = (Button)findViewById(R.id.write_ndef_tag_saveBtn);
saveUrlButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
writeUrlButton.setEnabled(true);
switch (tagTypeFlag) {
case 0:// ABSOLUTE_URI
payloadStr = mEditText1.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr);
mTextView1.setText("(Touch NFC Tag to write-ABSOLUTE_URI)： " + payloadStr);
mTextView1.setTextColor(Color.BLUE);
break;
case 1:// MIME_MEDIA
payloadStr = mEditText2.getText().toString();
typeStr = mEditText1.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr
+ ",typeStr=" + typeStr);
mTextView1.setText("Touch NFC Tag to write-MIME_MEDIA)： " + typeStr);
mTextView1.setTextColor(Color.BLUE);
mTextView2
.setText("Touch NFC Tag to write-MIME_MEDIA，Data)： " + payloadStr);
mTextView2.setTextColor(Color.BLUE);
break;
case 2:// RTD_TEXT
payloadStr = mEditText1.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr);
mTextView1.setText("(Touch NFC Tag to write-RTD_TEXT)： " + payloadStr);
mTextView1.setTextColor(Color.BLUE);
break;
case 3:// RTD_URI
payloadStr = mEditText1.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr);
mTextView1.setText("(Touch NFC Tag to write-RTD_URI)： http://www."
+ payloadStr);
mTextView1.setTextColor(Color.BLUE);
break;
case 4:// EXTERNAL_TYPE_SMS
typeStr = "skyseraph.nfc_demo:externalType";
payloadStr = mEditText2.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr);
mTextView1.setText("Touch NFC Tag to write-EXTERNAL_TYPE)： " + payloadStr);
mTextView1.setTextColor(Color.BLUE);
break;
default:// RTD_URI
payloadStr = mEditText1.getText().toString();
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr);
mTextView1.setText("(Touch NFC Tag to write)： http://www." + payloadStr);
mTextView1.setTextColor(Color.BLUE);
break;
}
}
}); writeUrlButton = (Button)this.findViewById(R.id.write_ndef_tag_writeBtn);
writeUrlButton.setEnabled(false);
writeUrlButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// Write to a tag for as long as the dialog is shown.
enableForegroundDispatch();
AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
builder.setTitle("Touch tag to write").setOnCancelListener(
new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "mTagWriter - onCancel");
disableForegroundDispatch();
}
});
alertDialog = builder.create();
alertDialog.setCanceledOnTouchOutside(false);
alertDialog.show();
}
}); exitButton = (Button)findViewById(R.id.write_ndef_tag_exitBtn);
exitButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
finish();
}
}); mSpinner = (Spinner)findViewById(R.id.write_ndef_tag_sp);
mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, spinnerStr);
mAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
mSpinner.setAdapter(mAdapter);
mSpinner.setOnItemSelectedListener(new SpinnerXMLSelectedListener());
mSpinner.setVisibility(View.VISIBLE);
mSpinner.setSelection(0, true);
} class SpinnerXMLSelectedListener implements OnItemSelectedListener {
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
LogUtil.i(MyConstant.TAG,
TAG_ASSIST + "What you have selected=" + mAdapter.getItem(arg2) + ",position="
+ arg2);
saveUrlButton.setEnabled(true);
writeUrlButton.setEnabled(false);
switch (arg2) {
case 0:// ABSOLUTE_URI
tagTypeFlag = 0;
mTextView1
.setText("Please input a absolute uri,exp: http://www.baidu.com/index.html");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.GONE);
mTextView2.setVisibility(View.GONE);
break;
case 1:// MIME_MEDIA
tagTypeFlag = 1;
mTextView2
.setText("Please input a mime_media, exp: application/skyseraph.nfc_demo");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.VISIBLE);
mTextView2.setVisibility(View.VISIBLE);
mTextView1
.setText("Please input your mime_media data, exp: This is a MIME_MEDIA");
mTextView2.setTextColor(Color.RED);
break;
case 2:// RTD TEXT
tagTypeFlag = 2;
mTextView1.setText("Please input a RTD TEXT,exp: This is an RTD-TEXT");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.GONE);
mTextView2.setVisibility(View.GONE);
break;
case 3: // RTD URI
tagTypeFlag = 3;
mTextView1.setText("Please input a RTD uri,exp: baidu.com");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.GONE);
mTextView2.setVisibility(View.GONE);
break;
case 4:// EXTERNAL_TYPE
tagTypeFlag = 4;
mTextView1
.setText("Please input a EXTERNAL_TYPE, exp: This is an EXTERNAL_TYPE");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.GONE);
mTextView2.setVisibility(View.GONE);
break;
default:// RTD_URI
tagTypeFlag = 3;
mTextView1.setText("Please input a RTD uri,exp: baidu.com");
mTextView1.setTextColor(Color.RED);
mEditText2.setVisibility(View.GONE);
mTextView2.setVisibility(View.GONE);
break;
}
} public void onNothingSelected(AdapterView<?> arg0) { }
} /**
* Init NFC
*/
private void initNFC() {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into initNFC");
mPendingIntent = PendingIntent.getActivity(this, 0,
new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
// FLAG_ACTIVITY_SINGLE_TOP: not creating multiple instances of the same
// application.
IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
IntentFilter ndefDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
IntentFilter techDetected = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
// ndef.addDataScheme("http");
// Intent filters for writing to a tag
mFilters = new IntentFilter[] {
ndefDetected,
};// just trying to find a tag,not ndef or tech mTechLists = new String[][] {
new String[] {
Ndef.class.getName()
}, new String[] {
NdefFormatable.class.getName()
}
};
} /**
* @param message
* @param detectedTag
* @return
*/
boolean writeNdefMessageToTag(NdefMessage message, Tag detectedTag) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into writeNdefMessageToTag");
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_LONG).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_LONG)
.show();
return false;
} ndef.writeNdefMessage(message);
ndef.close();
String str = "Message is written tag, message=" + message;
Toast.makeText(this, str, Toast.LENGTH_LONG).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;
} /**
* @Title: supportedTechs
* @Description: Check Support Techs
* @param @param techs
* @param @return
* @return boolean
* @throws
*/
public static boolean supportedTechs(String[] techs) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into supportedTechs");
for (String s : techs) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "all supportedTechs = " + s);
}
boolean ultralight = false;
boolean nfcA = false;
boolean ndef = false;
for (String tech : techs) {
if (tech.equals("android.nfc.tech.MifareUltralight")) {
ultralight = true;
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:ultralight");
} else if (tech.equals("android.nfc.tech.NfcA")) {
nfcA = true;
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:NfcA");
} else if (tech.equals("android.nfc.tech.Ndef")
|| tech.equals("android.nfc.tech.NdefFormatable")) {
ndef = true;
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:Ndef/NdefFormatable");
} else if (tech.equals("android.nfc.tech.MifareClassic")) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:MifareClassic");
}
}
if (ultralight && nfcA && ndef) {
return true;
} else {
return false;
}
} /**
* enable TagWrite
*/
private void enableForegroundDispatch() {
if (mNfcAdapter != null) {
mNfcAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters, mTechLists);
}
} /**
* disable TagWrite
*/
private void disableForegroundDispatch() {
if (mNfcAdapter != null) {
mNfcAdapter.disableForegroundDispatch(this);
}
} /**
* NFC Function Check By skyseraph 2013-2
*/
private void checkNFCFunction() {
// TODO Auto-generated method stub
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
// check the NFC adapter first
if (mNfcAdapter == null) {
// mTextView.setText("NFC apdater is not available");
Dialog dialog = null;
CustomDialog.Builder customBuilder = new CustomDialog.Builder(mContext);
customBuilder
.setTitle(getString(R.string.inquire))
.setMessage(getString(R.string.nfc_notice2))
.setIcon(R.drawable.dialog_icon2)
.setNegativeButton(getString(R.string.no),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
finish();
}
})
.setPositiveButton(getString(R.string.yes),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
finish();
}
});
dialog = customBuilder.create();
dialog.setCancelable(false);// back
dialog.setCanceledOnTouchOutside(false);
SetDialogWidth(dialog).show();
return;
} else {
if (!mNfcAdapter.isEnabled()) {
Dialog dialog = null;
CustomDialog.Builder customBuilder = new CustomDialog.Builder(mContext);
customBuilder
.setTitle(getString(R.string.inquire))
.setMessage(getString(R.string.nfc_notice3))
.setIcon(R.drawable.dialog_icon2)
.setNegativeButton(getString(R.string.no),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
finish();
}
})
.setPositiveButton(getString(R.string.yes),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
Intent setnfc = new Intent(
Settings.ACTION_WIRELESS_SETTINGS);
// Intent setnfc = new
// Intent(Settings.ACTION_NFC_SETTINGS);
startActivity(setnfc);
}
});
dialog = customBuilder.create();
dialog.setCancelable(false);// back
dialog.setCanceledOnTouchOutside(false);
SetDialogWidth(dialog).show();
return;
}
}
} /**
* @param dialog
* @return
*/
private Dialog SetDialogWidth(Dialog dialog) {
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
int screenWidth = dm.widthPixels;
int screenHeight = dm.heightPixels;
WindowManager.LayoutParams params = dialog.getWindow().getAttributes();
if (screenWidth > screenHeight) {
params.width = (int)(((float)screenHeight) * 0.875); } else {
params.width = (int)(((float)screenWidth) * 0.875);
}
dialog.getWindow().setAttributes(params); return dialog;
} /**
*********************************************************************** @Title ：WriteNdefTag.java
* @Package ：skyseraph.nfc_demo.tag.write
* @ClassName : WriteTask
* @Description ： TODO
* @author ： skyseraph00@163.com
* @date ： 2013-9-13 上午11:38:58
* @version ： V1.0
*/
static class WriteTask extends AsyncTask<Void, Void, Void> {
Activity host = null; NdefMessage msg = null; Tag tag = null; String text = null; WriteTask(Activity host, NdefMessage msg, Tag tag) {
LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into WriteTask AsyncTask");
this.host = host;
this.msg = msg;
this.tag = tag;
} @Override
protected Void doInBackground(Void... arg0) {
int size = msg.toByteArray().length; try {
Ndef ndef = Ndef.get(tag); if (ndef == null) {
NdefFormatable formatable = NdefFormatable.get(tag);
if (formatable != null) {
try {
formatable.connect();
try {
formatable.format(msg);
} catch (Exception e) {
text = "Failed to format tag，Tag refused to format";
}
} catch (Exception e) {
text = "Failed to connect tag，Tag refused to connect";
} finally {
formatable.close();
}
} else {
text = "NDEF is not supported in this Tag";
}
} else {
ndef.connect(); try {
if (!ndef.isWritable()) {
text = "Tag is read-only";
} else if (ndef.getMaxSize() < size) {
text = "The data cannot written to tag，Message is too big for tag，Tag capacity is "
+ ndef.getMaxSize() + " bytes, message is " + size + " bytes.";
} else {
ndef.writeNdefMessage(msg);
text = "Message is written tag, message=" + msg;
}
} catch (Exception e) {
text = "Tag refused to connect";
} finally {
ndef.close();
}
}
} catch (Exception e) {
text = "Write opreation is failed，General exception: " + e.getMessage();
LogUtil.i(MyConstant.TAG, TAG_ASSIST
+ "Exception when writing tag，Write opreation is failed" + text);
} return (null);
} @Override
protected void onPostExecute(Void unused) {
if (text != null) {
Toast.makeText(host, text, Toast.LENGTH_SHORT).show();
} // host.finish(); // after writed, auto finish
}
}
}
package skyseraph.easytagwrite;
import skyseraph.android.util.CustomDialog;import skyseraph.android.util.LogUtil;import skyseraph.android.util.MyConstant;import skyseraph.android.util.nfc.BobNdefMessage;
import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.app.PendingIntent;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.content.IntentFilter;import android.graphics.Color;import android.nfc.NdefMessage;import android.nfc.NfcAdapter;import android.nfc.Tag;import android.nfc.tech.Ndef;import android.nfc.tech.NdefFormatable;import android.os.AsyncTask;import android.os.Bundle;import android.provider.Settings;import android.util.DisplayMetrics;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.WindowManager;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.Spinner;import android.widget.TextView;import android.widget.Toast;
import java.io.IOException;
public class MainActivity extends Activity { private static final String TAG_ASSIST = "[MainActivity]-";
// NFC Declarations private NfcAdapter mNfcAdapter = null;
private IntentFilter[] mFilters = null;
private PendingIntent mPendingIntent = null;
private String[][] mTechLists = null;
private Context mContext;
private NdefMessage NDEFMsg2Write = null;
// UI private EditText mEditText1 = null;
private EditText mEditText2 = null;
private TextView mTextView1 = null;
private TextView mTextView2 = null;
private Spinner mSpinner = null;
private ArrayAdapter mAdapter = null;
private Button writeUrlButton, saveUrlButton, exitButton;
private static final String[] spinnerStr = { "TNF_ABSOLUTE_URI", "TNF_MIME_MEDIA", "TNF_WELL_KNOWN RTD-TEXT", "TNF_WELL_KNOWN RTD-URI", "TNF_EXTERNAL_TYPE", };
private String payloadStr = "";
private String typeStr = "";
private int tagTypeFlag = 0;//
private AlertDialog alertDialog = null;
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mContext = this;
checkNFCFunction(); // NFC Check initUI();// Init UI initNFC();// Init NFC }
@Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; }
@Override public boolean onOptionsItemSelected(MenuItem item) { // TODO Auto-generated method stub super.onOptionsItemSelected(item); switch (item.getItemId()) // item clicked { case R.id.action_settings: // Intent setnfc = new // Intent(Settings.ACTION_WIRELESS_SETTINGS); Intent setnfc = new Intent(Settings.ACTION_NFC_SETTINGS); startActivity(setnfc); break; case R.id.action_about: dialog(); break; } return true; }
protected void dialog() { AlertDialog.Builder builder = new AlertDialog.Builder(mContext); builder.setTitle(getString(R.string.dialog_notice)); alertDialog = builder.create(); builder.setCancelable(true);// back alertDialog.setCanceledOnTouchOutside(true); alertDialog.show(); }
@Override public void onResume() { super.onResume(); if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(getIntent().getAction())) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "ACTION_TECH_DISCOVERED"); // get NFC object Tag detectTag = getIntent().getParcelableExtra(NfcAdapter.EXTRA_TAG); // validate that this tag can be written if (supportedTechs(detectTag.getTechList())) { switch (tagTypeFlag) { case 0:// ABSOLUTE_URI NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_ABSOLUTE_URI(payloadStr, false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); // By // Function new WriteTask(this, NDEFMsg2Write, detectTag).execute(); // By // AsyncTask // Class break; case 1:// MIME_MEDIA NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_MIME_MEDIA(payloadStr, "application/skyseraph.nfc_demo", false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); new WriteTask(this, NDEFMsg2Write, detectTag).execute(); break; case 2:// RTD_TEXT NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_TEXT(payloadStr, false, false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); new WriteTask(this, NDEFMsg2Write, detectTag).execute(); break; case 3:// RTD_URI NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_URI(payloadStr, (byte)0x01, false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); new WriteTask(this, NDEFMsg2Write, detectTag).execute(); break; case 4:// EXTERNAL_TYPE NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_EXTERNAL_TYPE(payloadStr, false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); new WriteTask(this, NDEFMsg2Write, detectTag).execute(); break; default:// RTD_URI NDEFMsg2Write = BobNdefMessage.getNdefMsg_from_RTD_URI(payloadStr, (byte)0x01, false); // writeNdefMessageToTag(NDEFMsg2Write, detectTag); new WriteTask(this, NDEFMsg2Write, detectTag).execute(); break; } } else { Toast.makeText(mContext, "This tag type is not supported", Toast.LENGTH_SHORT).show(); } } }
@Override public void onNewIntent(Intent intent) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "Discovered tag with intent: " + intent); setIntent(intent); }
@Override public void onPause() { super.onPause(); if (alertDialog != null) alertDialog.cancel(); disableForegroundDispatch(); }
private void initUI() { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into initUI"); // TODO Auto-generated method stub mEditText1 = (EditText)this.findViewById(R.id.write_ndef_tag_et1); mEditText2 = (EditText)this.findViewById(R.id.write_ndef_tag_et2); mTextView1 = (TextView)findViewById(R.id.write_ndef_tag_tv1); mTextView2 = (TextView)findViewById(R.id.write_ndef_tag_tv2);
saveUrlButton = (Button)findViewById(R.id.write_ndef_tag_saveBtn); saveUrlButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { writeUrlButton.setEnabled(true); switch (tagTypeFlag) { case 0:// ABSOLUTE_URI payloadStr = mEditText1.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr); mTextView1.setText("(Touch NFC Tag to write-ABSOLUTE_URI)： " + payloadStr); mTextView1.setTextColor(Color.BLUE); break; case 1:// MIME_MEDIA payloadStr = mEditText2.getText().toString(); typeStr = mEditText1.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr + ",typeStr=" + typeStr); mTextView1.setText("Touch NFC Tag to write-MIME_MEDIA)： " + typeStr); mTextView1.setTextColor(Color.BLUE); mTextView2 .setText("Touch NFC Tag to write-MIME_MEDIA，Data)： " + payloadStr); mTextView2.setTextColor(Color.BLUE); break; case 2:// RTD_TEXT payloadStr = mEditText1.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr); mTextView1.setText("(Touch NFC Tag to write-RTD_TEXT)： " + payloadStr); mTextView1.setTextColor(Color.BLUE); break; case 3:// RTD_URI payloadStr = mEditText1.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr); mTextView1.setText("(Touch NFC Tag to write-RTD_URI)： http://www." + payloadStr); mTextView1.setTextColor(Color.BLUE); break; case 4:// EXTERNAL_TYPE_SMS typeStr = "skyseraph.nfc_demo:externalType"; payloadStr = mEditText2.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr); mTextView1.setText("Touch NFC Tag to write-EXTERNAL_TYPE)： " + payloadStr); mTextView1.setTextColor(Color.BLUE); break; default:// RTD_URI payloadStr = mEditText1.getText().toString(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "payloadStr=" + payloadStr); mTextView1.setText("(Touch NFC Tag to write)： http://www." + payloadStr); mTextView1.setTextColor(Color.BLUE); break; } } });
writeUrlButton = (Button)this.findViewById(R.id.write_ndef_tag_writeBtn); writeUrlButton.setEnabled(false); writeUrlButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { // Write to a tag for as long as the dialog is shown. enableForegroundDispatch(); AlertDialog.Builder builder = new AlertDialog.Builder(mContext); builder.setTitle("Touch tag to write").setOnCancelListener( new DialogInterface.OnCancelListener() { @Override public void onCancel(DialogInterface dialog) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "mTagWriter - onCancel"); disableForegroundDispatch(); } }); alertDialog = builder.create(); alertDialog.setCanceledOnTouchOutside(false); alertDialog.show(); } });
exitButton = (Button)findViewById(R.id.write_ndef_tag_exitBtn); exitButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { finish(); } });
mSpinner = (Spinner)findViewById(R.id.write_ndef_tag_sp); mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, spinnerStr); mAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); mSpinner.setAdapter(mAdapter); mSpinner.setOnItemSelectedListener(new SpinnerXMLSelectedListener()); mSpinner.setVisibility(View.VISIBLE); mSpinner.setSelection(0, true); }
class SpinnerXMLSelectedListener implements OnItemSelectedListener { public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "What you have selected=" + mAdapter.getItem(arg2) + ",position=" + arg2); saveUrlButton.setEnabled(true); writeUrlButton.setEnabled(false); switch (arg2) { case 0:// ABSOLUTE_URI tagTypeFlag = 0; mTextView1 .setText("Please input a absolute uri,exp: http://www.baidu.com/index.html"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.GONE); mTextView2.setVisibility(View.GONE); break; case 1:// MIME_MEDIA tagTypeFlag = 1; mTextView2 .setText("Please input a mime_media, exp: application/skyseraph.nfc_demo"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.VISIBLE); mTextView2.setVisibility(View.VISIBLE); mTextView1 .setText("Please input your mime_media data, exp: This is a MIME_MEDIA"); mTextView2.setTextColor(Color.RED); break; case 2:// RTD TEXT tagTypeFlag = 2; mTextView1.setText("Please input a RTD TEXT,exp: This is an RTD-TEXT"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.GONE); mTextView2.setVisibility(View.GONE); break; case 3: // RTD URI tagTypeFlag = 3; mTextView1.setText("Please input a RTD uri,exp: baidu.com"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.GONE); mTextView2.setVisibility(View.GONE); break; case 4:// EXTERNAL_TYPE tagTypeFlag = 4; mTextView1 .setText("Please input a EXTERNAL_TYPE, exp: This is an EXTERNAL_TYPE"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.GONE); mTextView2.setVisibility(View.GONE); break; default:// RTD_URI tagTypeFlag = 3; mTextView1.setText("Please input a RTD uri,exp: baidu.com"); mTextView1.setTextColor(Color.RED); mEditText2.setVisibility(View.GONE); mTextView2.setVisibility(View.GONE); break; } }
public void onNothingSelected(AdapterView<?> arg0) {
} }
/** * Init NFC */ private void initNFC() { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into initNFC"); mPendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); // FLAG_ACTIVITY_SINGLE_TOP: not creating multiple instances of the same // application. IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED); IntentFilter ndefDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED); IntentFilter techDetected = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED); // ndef.addDataScheme("http"); // Intent filters for writing to a tag mFilters = new IntentFilter[] { ndefDetected, };// just trying to find a tag,not ndef or tech
mTechLists = new String[][] { new String[] { Ndef.class.getName() }, new String[] { NdefFormatable.class.getName() } }; }
/** * @param message * @param detectedTag * @return */ boolean writeNdefMessageToTag(NdefMessage message, Tag detectedTag) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into writeNdefMessageToTag"); 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_LONG).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_LONG) .show(); return false; }
ndef.writeNdefMessage(message); ndef.close(); String str = "Message is written tag, message=" + message; Toast.makeText(this, str, Toast.LENGTH_LONG).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; }
/** * @Title: supportedTechs * @Description: Check Support Techs * @param @param techs * @param @return * @return boolean * @throws */ public static boolean supportedTechs(String[] techs) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into supportedTechs"); for (String s : techs) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "all supportedTechs = " + s); } boolean ultralight = false; boolean nfcA = false; boolean ndef = false; for (String tech : techs) { if (tech.equals("android.nfc.tech.MifareUltralight")) { ultralight = true; LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:ultralight"); } else if (tech.equals("android.nfc.tech.NfcA")) { nfcA = true; LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:NfcA"); } else if (tech.equals("android.nfc.tech.Ndef") || tech.equals("android.nfc.tech.NdefFormatable")) { ndef = true; LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:Ndef/NdefFormatable"); } else if (tech.equals("android.nfc.tech.MifareClassic")) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "supportedTechs is:MifareClassic"); } } if (ultralight && nfcA && ndef) { return true; } else { return false; } }
/** * enable TagWrite */ private void enableForegroundDispatch() { if (mNfcAdapter != null) { mNfcAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters, mTechLists); } }
/** * disable TagWrite */ private void disableForegroundDispatch() { if (mNfcAdapter != null) { mNfcAdapter.disableForegroundDispatch(this); } }
/** * NFC Function Check By skyseraph 2013-2 */ private void checkNFCFunction() { // TODO Auto-generated method stub mNfcAdapter = NfcAdapter.getDefaultAdapter(this); // check the NFC adapter first if (mNfcAdapter == null) { // mTextView.setText("NFC apdater is not available"); Dialog dialog = null; CustomDialog.Builder customBuilder = new CustomDialog.Builder(mContext); customBuilder .setTitle(getString(R.string.inquire)) .setMessage(getString(R.string.nfc_notice2)) .setIcon(R.drawable.dialog_icon2) .setNegativeButton(getString(R.string.no), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); finish(); } }) .setPositiveButton(getString(R.string.yes), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); finish(); } }); dialog = customBuilder.create(); dialog.setCancelable(false);// back dialog.setCanceledOnTouchOutside(false); SetDialogWidth(dialog).show(); return; } else { if (!mNfcAdapter.isEnabled()) { Dialog dialog = null; CustomDialog.Builder customBuilder = new CustomDialog.Builder(mContext); customBuilder .setTitle(getString(R.string.inquire)) .setMessage(getString(R.string.nfc_notice3)) .setIcon(R.drawable.dialog_icon2) .setNegativeButton(getString(R.string.no), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); finish(); } }) .setPositiveButton(getString(R.string.yes), new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); Intent setnfc = new Intent( Settings.ACTION_WIRELESS_SETTINGS); // Intent setnfc = new // Intent(Settings.ACTION_NFC_SETTINGS); startActivity(setnfc); } }); dialog = customBuilder.create(); dialog.setCancelable(false);// back dialog.setCanceledOnTouchOutside(false); SetDialogWidth(dialog).show(); return; } } }
/** * @param dialog * @return */ private Dialog SetDialogWidth(Dialog dialog) { DisplayMetrics dm = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(dm); int screenWidth = dm.widthPixels; int screenHeight = dm.heightPixels; WindowManager.LayoutParams params = dialog.getWindow().getAttributes(); if (screenWidth > screenHeight) { params.width = (int)(((float)screenHeight) * 0.875);
} else { params.width = (int)(((float)screenWidth) * 0.875); } dialog.getWindow().setAttributes(params);
return dialog; }
/** *********************************************************************** @Title ：WriteNdefTag.java * @Package ：skyseraph.nfc_demo.tag.write * @ClassName : WriteTask * @Description ： TODO * @author ： skyseraph00@163.com * @date ： 2013-9-13 上午11:38:58 * @version ： V1.0 */ static class WriteTask extends AsyncTask<Void, Void, Void> { Activity host = null;
NdefMessage msg = null;
Tag tag = null;
String text = null;
WriteTask(Activity host, NdefMessage msg, Tag tag) { LogUtil.i(MyConstant.TAG, TAG_ASSIST + "into WriteTask AsyncTask"); this.host = host; this.msg = msg; this.tag = tag; }
@Override protected Void doInBackground(Void... arg0) { int size = msg.toByteArray().length;
try { Ndef ndef = Ndef.get(tag);
if (ndef == null) { NdefFormatable formatable = NdefFormatable.get(tag); if (formatable != null) { try { formatable.connect(); try { formatable.format(msg); } catch (Exception e) { text = "Failed to format tag，Tag refused to format"; } } catch (Exception e) { text = "Failed to connect tag，Tag refused to connect"; } finally { formatable.close(); } } else { text = "NDEF is not supported in this Tag"; } } else { ndef.connect();
try { if (!ndef.isWritable()) { text = "Tag is read-only"; } else if (ndef.getMaxSize() < size) { text = "The data cannot written to tag，Message is too big for tag，Tag capacity is " + ndef.getMaxSize() + " bytes, message is " + size + " bytes."; } else { ndef.writeNdefMessage(msg); text = "Message is written tag, message=" + msg; } } catch (Exception e) { text = "Tag refused to connect"; } finally { ndef.close(); } } } catch (Exception e) { text = "Write opreation is failed，General exception: " + e.getMessage(); LogUtil.i(MyConstant.TAG, TAG_ASSIST + "Exception when writing tag，Write opreation is failed" + text); }
return (null); }
@Override protected void onPostExecute(Void unused) { if (text != null) { Toast.makeText(host, text, Toast.LENGTH_SHORT).show(); }
// host.finish(); // after writed, auto finish } }}