NFC - 无法检测标记

onNewIntent（意图意图）方法没有被调用。NFC - 无法检测标记

我努力的代码是

public class NfcTagDetector extends Activity{ 

private NfcAdapter mNfcAdapter; 
private PendingIntent pendingIntent; 
private IntentFilter[] intentFiltersArray; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.detect_tag); 
    pendingIntent = PendingIntent.getActivity(
      this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); 
    mNfcAdapter = NfcAdapter.getDefaultAdapter(this); 
    IntentFilter discovery=new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED); 
    IntentFilter ndefDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);   
    IntentFilter techDetected = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED); 

    // Intent filters for writing to a tag 
    intentFiltersArray = new IntentFilter[] { discovery,ndefDetected,techDetected }; 
} 

public void onPause() { 
    super.onPause(); 
    mNfcAdapter.disableForegroundDispatch(this); 
} 

public void onResume() { 
    super.onResume(); 
    mNfcAdapter.enableForegroundDispatch(this, pendingIntent, intentFiltersArray, null); 
} 

@Override 
protected void onNewIntent(Intent intent) { 
    // TODO Auto-generated method stub 
    super.onNewIntent(intent); 
    Log.e("TAP", "onNewIntent"); 
}

}

而且AndroidManifest.xml中

<activity android:name="com.example.detect.NfcTagDetector" > 
     <intent-filter> 
      <action android:name="android.nfc.action.TECH_DISCOVERED" /> 

      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 

     <meta-data 
      android:name="android.nfc.action.TECH_DISCOVERED" 
      android:resource="@xml/nfc_tech_filter" /> 
    </activity>

nfc_tech_filter.xml文件

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> 
<tech-list> 
    <tech>android.nfc.tech.IsoDep</tech> 
    <tech>android.nfc.tech.NfcA</tech> 
    <tech>android.nfc.tech.NfcB</tech> 
    <tech>android.nfc.tech.NfcF</tech> 
    <tech>android.nfc.tech.NfcV</tech> 
    <tech>android.nfc.tech.Ndef</tech> 
    <tech>android.nfc.tech.NdefFormatable</tech> 
    <tech>android.nfc.tech.MifareClassic</tech> 
    <tech>android.nfc.tech.MifareUltralight</tech> 
</tech-list>

请帮忙...

来源

2013-08-01 aditya

你试图检测什么样的标签？我认为这个问题可能在你的 – Peanut

@Peanut是的，你是对的，你知道什么..问题是我的设备。我试图在三星S II和它的NFC是有缺陷的..现在我试图在Nexus和东西都在工作.. – aditya

tech-list需要一个标签来匹配列表中的所有项目。这是不可能与您的名单。更好的尝试：

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2"> 
<tech-list> 
    <tech>android.nfc.tech.NfcA</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.NfcB</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.NfcF</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.NfcV</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.Ndef</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.NdefFormatable</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.MifareClassic</tech> 
</tech-list> 
<tech-list> 
    <tech>android.nfc.tech.MifareUltralight</tech> 
</tech-list> 
</resources>

来源

2013-08-01 19:08:29

是的，你是对的.. Nd最大的问题是，我正在一个有缺陷的NFC设备上测试代码..感谢nyways NFC家伙.. +1为你的帮助.. – aditya

NFC - 无法检测标记

回答

相关问题