0
嗨大家好,我開發了一個NFC應用程序,並將它安裝到我的NEXUS S手機上..但顯示標籤時,應用程序未加載?我可不可以嗎?我怎麼過來吧..創建我的NFC應用程序
我的問題是,當nexus發現一個標籤,我的應用程序沒有列在「選擇一個動作」 - popup。
public class TagReader extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Intent intent = this.getIntent();
LinearLayout content = (LinearLayout) findViewById(R.id.list);
Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
NdefMessage[] msgs = null;
if (rawMsgs != null) {
msgs = new NdefMessage[rawMsgs.length];
msgs[0] = (NdefMessage) rawMsgs[0];
}
NdefRecord[] record = msgs[0].getRecords();
Preconditions.checkArgument(record[0].getTnf() == NdefRecord.TNF_WELL_KNOWN);
Preconditions.checkArgument(Arrays.equals(record[0].getType(), NdefRecord.RTD_TEXT));
byte[] bRecord = record[0].getPayload();
String textEncoding = ((bRecord[0] & 0200) == 0) ? "UTF-8" : "UTF-16";
int languageCodeLength = bRecord[0] & 0077;
LayoutInflater inflater = LayoutInflater.from(this);
content.removeAllViews();
try{
String languageCode = new String(bRecord, 1, languageCodeLength, "US-ASCII");
String text = new String(bRecord, languageCodeLength + 1,bRecord.length - languageCodeLength - 1, textEncoding);
TextView textv = (TextView) inflater.inflate(R.layout.tag_text, content, false);
textv.setText(text);
content.addView(textv);
String x = null;
}catch(Exception e){
e.printStackTrace();
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.nfc.TagReader"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.NFC"/>
<application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
<activity android:name=".TagReader"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.nfc.action.TAG_DISCOVERED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
請儘快請我真的卡住回覆..