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我相信這很簡單，但我無法弄清楚。我想要做的就是通過NFC（android Beam）發送消息，並在接收器設備上打開我的應用程序。我在一個新的項目上測試了我的代碼，它工作的很完美，但是如果我在真正的項目上嘗試它，只需啓動「收集新標籤」並顯示application/eu.freemoser.mydebts2go（請參閱my screenshot）。我不知道什麼是錯的，也許是與清單有關的東西？在谷歌搜索結果不符合我的問題符合（或我只是愚蠢的），但我相信，我發現了一些related answer可惜我還是沒能解決我的問題意圖過濾器不適用於Android Beam NFC
我的清單：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="eu.freemoser.myDebts2go"
android:versionCode="16"
android:versionName="1.1.0">
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.NFC" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" />
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<uses-feature android:name="android.hardware.nfc" android:required="false" />
<uses-feature android:name="android.hardware.camera" />
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="19" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<application
android:name="eu.freemoser.myDebts2go.MyApplication"
android:allowBackup="true"
android:hardwareAccelerated="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/Theme.Mydebts2go">
>
<service android:name="eu.freemoser.myDebts2goService.NotificationService"></service>
<service android:name="eu.freemoser.myDebts2goService.SynchronizationService"></service>
<service android:name="eu.freemoser.myDebts2goService.SynchronizService"></service>
<service android:name="eu.freemoser.myDebts2goService.AwesomeSynchronizService"></service>
<activity
android:name="eu.freemoser.myDebts2go.MainActivity"
android:label="@string/app_name"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="eu.freemoser.myDebts2GoActivities.AwesomeDetailActivity"
android:screenOrientation="portrait" android:theme="@style/Theme.MyDebts2GO.Detail">
</activity>
<activity android:name=".AndroidBeamActivity" android:screenOrientation="portrait"
android:theme="@android:style/Theme.DeviceDefault.Wallpaper.NoTitleBar">
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="application/eu.freemoser.myDebts2go" />
</intent-filter>
</activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.DriveRestoreActivity"></activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.SynchronizActivity"></activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.SettingActivity">
<intent-filter>
<action android:name="android.intent.action.MANAGE_NETWORK_USAGE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.DatePickerActivity"></activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.LocationPickerActivity"></activity>
<activity android:name="eu.freemoser.myDebts2GoActivities.SearchActivity">
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
</activity>
<activity
android:name="eu.freemoser.myDebts2GoActivities.DriveAuthorzingActivity"
android:theme="@android:style/Theme.Translucent.NoTitleBar">
</activity>
<activity
android:name="eu.freemoser.myDebts2GoActivities.FastModusShortcutActivity"
android:exported="true"
android:theme="@android:style/Theme.Holo.Light.NoActionBar">
</activity>
<!-- android:value="API_KEY" /> DEBUG-->
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="API_KEY" />
<meta-data
android:name="com.google.android.gms.version"
android:value="VERSION" />
</application>
</manifest>
的片段（發送者）
public class AwesomeDetailFragment extends Fragment implements ObservableScrollView.Callbacks, NfcAdapter.CreateNdefMessageCallback, NfcAdapter.OnNdefPushCompleteCallback {
...
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
...
setUpAndroidBeam();
return mRootView;
}
private void setUpAndroidBeam() {
PackageManager pm = getActivity().getPackageManager();
// Check whether NFC is available on device
if (!pm.hasSystemFeature(PackageManager.FEATURE_NFC)) {
// NFC is not available on the device.
}
// Check whether device is running Android 4.1 or higher
else if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
// Android Beam feature is not supported.
} else {
myNfcAdapter = NfcAdapter.getDefaultAdapter(getActivity());
manageNfc();
}
}
private void manageNfc() {
if (myNfcAdapter != null) {
myNfcAdapter.setNdefPushMessageCallback(this, getActivity());
myNfcAdapter.setOnNdefPushCompleteCallback(this, getActivity());
}
}
...
@Override
public NdefMessage createNdefMessage(NfcEvent event) {
Time time = new Time();
time.setToNow();
String text = myBetrag + "//" + myTitle + "//" + myContactName + "//" + myStatus + "//" + myDebtDate + "//" + myCreateDate + "//" + myRemamberDate + "//" + myNote;
NdefMessage msg = new NdefMessage(
new NdefRecord[]{createMimeRecord(
"application/eu.freemoser.myDebts2go", text.getBytes())});
return msg;
}
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;
}
@Override
public void onNdefPushComplete(NfcEvent event) {
}
}
的活性（接收機）
public class Beam extends Activity {
private Long userID = null;
private Long adressID = null;
private DBAdapter myDb;
//NFC
private String myBetrag;
private String myTitle;
private String myContactName;
private String myDebtDate;
private String myCreateDate;
private String myStatus;
private String myRemamberDate;
private String myNote;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
protected void onResume() {
super.onResume();
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(getIntent().getAction())) {
processIntent(getIntent());
}
}
void processIntent(Intent intent) {
myDb = new DBAdapter(this);
myDb.open();
Parcelable[] rawMsgs = intent.getParcelableArrayExtra(
NfcAdapter.EXTRA_NDEF_MESSAGES);
// only one message sent during the beam
NdefMessage msg = (NdefMessage) rawMsgs[0];
// record 0 contains the MIME type, record 1 is the AAR, if present
String temp = new String(msg.getRecords()[0].getPayload());
String[] arrrayTemp = temp.split("//");
try {
myBetrag = arrrayTemp[0];
myTitle = arrrayTemp[1];
myContactName = arrrayTemp[2];
myStatus = arrrayTemp[3];
myDebtDate = arrrayTemp[4];
myCreateDate = arrrayTemp[5];
// can be "NOT"
myRemamberDate = arrrayTemp[6];
myNote = arrrayTemp[7];
// checkValues
channgeStatus();
checkIfNot();
checkUser();
//write to database
write();
} catch (Exception ex) {
this.finish();
}
}
@Override
protected void onDestroy() {
super.onDestroy();
myDb.close();
}
private void checkUser() {
//do some stuff
...
}
private void write() {
//do some stuff
...
}
private void checkIfNot() {
//do some stuff
...
}
private void channgeStatus() {
//do some stuff
...
}
@Override
public void onNewIntent(Intent intent) {
// onResume gets called after this to handle the intent
setIntent(intent);
}
}
謝謝你現在工作 – 2015-02-09 18:16:45