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我必须从一个设备共享标签到其他,我有android 2.3.3 galaxy。 请分享一些代码,用于将标签从一台设备共享到另一台设备。如何在Android的两个nfc设备之间启动模拟
我采取这种代码的开发者网站,但它显示的错误在该行
mNfcAdapter.setNdefPushMessageCallback(this, this);
// Check for available NFC Adapter
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (mNfcAdapter == null) {
Toast.makeText(this, "NFC is not available", Toast.LENGTH_LONG).show();
finish();
return;
}
// Register callback
mNfcAdapter.setNdefPushMessageCallback(this, this);
现在即时通讯使用使forground消息,但它工作正常,但怎么看仿真..
public class DemoNFCtagActivity extends Activity {
NdefMessage msg;
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
mNfcAdapter.enableForegroundNdefPush(this,msg);
}
NfcAdapter mNfcAdapter;
TextView textView;
Button btnEmulation;
PendingIntent mNfcPendingIntent;
IntentFilter[] mNdefExchangeFilters;
NdefMessage message;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// TextView textView = (TextView) findViewById(R.id.textView);
// Check for available NFC Adapter
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (mNfcAdapter == null) {
Toast.makeText(this, "NFC is not available", Toast.LENGTH_LONG).show();
finish();
return;
}
// Register callback
// mNfcAdapter.setNdefPushMessageCallback(this, this);
String text = ("Beam me up, Android!\n\n" +
"Beam Time: " + System.currentTimeMillis());
msg = new NdefMessage(
new NdefRecord[] { createMimeRecord(
"application/com.example.android.beam", text.getBytes())
/**
* The Android Application Record (AAR) is commented out. When a device
* receives a push with an AAR in it, the application specified in the AAR
* is guaranteed to run. The AAR overrides the tag dispatch system.
* You can add it back in to guarantee that this
* activity starts when receiving a beamed message. For now, this code
* uses the tag dispatch system.
*/
//,NdefRecord.createApplicationRecord("com.example.android.beam")
});
}
public NdefRecord createMimeRecord(String mimeType, byte[] payload) {
byte[] mimeBytes = mimeType.getBytes(Charset.forName("US-ASCII"));
NdefRecord mimeRecord = new NdefRecord(
NdefRecord.TNF_MIME_MEDIA, mimeBytes, new byte[0], payload);
return mimeRecord;
}
}
我有另一个问题,我使用上面描述的代码.. 但如何看到仿真意味着代码不显示任何错误,但没有发生..请帮助 – user626130 2012-07-20 11:43:16