我的应用程序已完成，但我希望在点击 NFC 标签时打开应用程序！请帮我
我将添加到主要活动中
<uses-permission android:name="android.permission.NFC" />
这是java代码
public class MainActivity extends Activity {
private static final String TAG = "NFCReadTag";
private NfcAdapter mNfcAdapter;
private IntentFilter[] mNdefExchangeFilters;
private PendingIntent mNfcPendingIntent;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
mNfcPendingIntent = PendingIntent.getActivity(this, 0, new Intent(this,
getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP
| Intent.FLAG_ACTIVITY_CLEAR_TOP), 0);
IntentFilter smartwhere = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
smartwhere.addDataScheme("http");
smartwhere.addDataAuthority("www.smartwhere.com", null);
smartwhere.addDataPath(".*", PatternMatcher.PATTERN_SIMPLE_GLOB);
mNdefExchangeFilters = new IntentFilter[] { smartwhere };
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
@Override
protected void onResume() {
super.onResume();
if(mNfcAdapter != null) {
mNfcAdapter.enableForegroundDispatch(this, mNfcPendingIntent,
mNdefExchangeFilters, null);
if (!mNfcAdapter.isEnabled()){
LayoutInflater inflater = getLayoutInflater();
View dialoglayout = inflater.inflate( (Integer) R.layout.nfc_settings_layout,(ViewGroup) findViewById(R.id.nfc_settings_layout));
new AlertDialog.Builder(this).setView(dialoglayout)
.setPositiveButton("Update Settings", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
Intent setnfc = new Intent(Settings.ACTION_WIRELESS_SETTINGS);
startActivity(setnfc);
}
})
.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
finish(); // exit application if user cancels
}
}).create().show();
}
} else {
Toast.makeText(getApplicationContext(), "Sorry, No NFC Adapter found.", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onPause() {
super.onPause();
if(mNfcAdapter != null) mNfcAdapter.disableForegroundDispatch(this);
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {
NdefMessage[] messages = null;
Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
if (rawMsgs != null) {
messages = new NdefMessage[rawMsgs.length];
for (int i = 0; i < rawMsgs.length; i++) {
messages[i] = (NdefMessage) rawMsgs[i];
}
}
if(messages[0] != null) {
String result="";
byte[] payload = messages[0].getRecords()[0].getPayload();
// this assumes that we get back am SOH followed by host/code
for (int b = 1; b<payload.length; b++) { // skip SOH
result += (char) payload[b];
}
Toast.makeText(getApplicationContext(), "Tag Contains " + result, Toast.LENGTH_SHORT).show();
}
}
}
}
问题是在我的应用程序中的何处添加此代码？