英文:
Problem with NfcAdapter's enableForegroundDispatch call in android q (android 10)
问题
I have some issues developing the nfc plugin in Unity.
When nfc tagging, onNewIntent is not called, the app moves to the background and the default nfc tagviewer opens.
It worked on Android 9 and below, but not android 10.
I found a suspicious logs using Logcat.
NfcService: setForegroundDispatch: Caller not in foreground.
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: call Activity
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: intent:Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp= com.package.product/.NFCPlugin bnds=[1131,670][1405,1123] (has extras) }
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: Skill Launcher Cat: LAUNCHER
2020-04-05 15:33:45.858 32411-32411/? E/class com.package.product.NFCPlugin: onResume Activity
2020-04-05 15:33:45.858 32411-32411/? E/class com.package.product.NFCPlugin: Call Check ForegroundDispatch
2020-04-05 15:33:45.858 7904-7904/? I/[LGHome6]Launcher: rebindModel: rebind = false, flag = 0, currentPage = 4, isLandscape = true, mChangedProfileByMultiWindow = false, mOrientationOfCurrentLayout = 0, mWorkspaceLoading = false, mChangedProfile = true, mIsMirrorMode = false
2020-04-05 15:33:45.858 7506-7542/? E/NfcService: setForegroundDispatch: Caller not in foreground.
2020-04-05 15:33:45.859 32411-32735/? W/System.err: javax.net.ssl.SSLException: Write error: ssl=0x7c105b0c48: I/O error during system call, Broken pipe
2020-04-05 15:33:45.859 32411-32411/? E/class com.package.product.NFCPlugin: Equal Result:true
2020-04-05 15:33:45.860 2437-2462/? V/DesktopModeManager: Notification is not exist.
2020-04-05 15:33:45.860 5005-5005/? I/OpaLayout: Setting opa enabled to true
2020-04-05 15:33:45.863 2437-8224/? D/InputDispatcher: Window went away: Window{f88f9f9 u0 com.lge.launcher3/com.lge.launcher3.LauncherExtension}
I have found several places to print the log. As a result, I found the part that outputs the same log in Android Code Search.
Link to code in Android Code Search
@Override
public void setForegroundDispatch(PendingIntent intent,
IntentFilter[] filters, TechListParcel techListsParcel)
{
NfcPermissions.enforceUserPermissions(mContext);
if (!mForegroundUtils.isInForeground(Binder.getCallingUid()))
{
Log.e(TAG, "setForegroundDispatch: Caller not in foreground.");
return;
}
// Short-cut the disable path
if (intent == null && filters == null && techListsParcel == null)
{
mNfcDispatcher.setForegroundDispatch(null, null, null);
return;
}
// Validate the IntentFilters
if (filters != null) {
if (filters.length == 0) {
filters = null;
} else {
for (IntentFilter filter : filters) {
if (filter == null) {
throw new IllegalArgumentException("null IntentFilter");
}
}
}
}
// Validate the tech lists
String[][] techLists = null;
if (techListsParcel != null) {
techLists = techListsParcel.getTechLists();
}
mNfcDispatcher.setForegroundDispatch(intent, filters, techLists);
}
According to the code, if a log occurs, processing is stopped without returning any results. So it seems that the foregroundDispatch does not proceed and goes over.
I've been trying for a long time to solve this issue, but couldn't find the same case, so I think it's a new issue in Android 10.
Does anyone know how to fix this?
Lastly, I'm sorry that it was difficult to understand because I used a translation site to write this question.
Below is the code for the plugin.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
m_instance=this;
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (mNfcAdapter == null)
{
finish();
return;
}
pendingIntent = PendingIntent.getActivity(NFCPlugin.this, 0, new Intent(NFCPlugin.this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
IntentFilter _ndfFilter = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
try
{
_ndfFilter.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
IntentFilter _ndfFilter_NDEF = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
try {
_ndfFilter_NDEF.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
IntentFilter _ndfFilter_Tech = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
try {
_ndfFilter_Tech.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
mIntentFilter = new IntentFilter[] { _ndfFilter ,_ndfFilter_NDEF,_ndfFilter_Tech};
techListsArray = new String[][] {
new String[] {NFCPlugin.class.getName()},
new String[] {TagTechnology.class.getName()},
new String[] {NfcA.class.getName()},
new String[] {NfcB.class.getName()},
new String[] {NfcV.class.getName()},
new String[] {IsoDep.class.getName()},
new String[] {Ndef.class.getName()},
new String[] {NdefFormatable.class.getName()}
};
}
@Override
public void onResume() {
super.onResume();
Log.e(NFCPlugin.class.toString(), "onResume Activity");
mNfcAdapter.enable
<details>
<summary>英文:</summary>
I have some issues developing the nfc plugin in Unity.
When nfc tagging, onNewIntent is not called, the app moves to the background and the default nfc tagviewer opens.
It worked on Android 9 and below, but not android 10.
I found a suspicious logs using Logcat.
**NfcService: setForegroundDispatch: Caller not in foreground.**
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: call Activity
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: intent:Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp= com.package.product/.NFCPlugin bnds=[1131,670][1405,1123] (has extras) }
2020-04-05 15:33:45.857 32411-32411/? E/class com.package.product.NFCPlugin: Skill Launcher Cat: LAUNCHER
2020-04-05 15:33:45.858 32411-32411/? E/class com.package.product.NFCPlugin: onResume Activity
2020-04-05 15:33:45.858 32411-32411/? E/class com.package.product.NFCPlugin: Call Check ForegroundDispatch
2020-04-05 15:33:45.858 7904-7904/? I/[LGHome6]Launcher: rebindModel: rebind = false, flag = 0, currentPage = 4, isLandscape = true, mChangedProfileByMultiWindow = false, mOrientationOfCurrentLayout = 0, mWorkspaceLoading = false, mChangedProfile = true, mIsMirrorMode = false
2020-04-05 15:33:45.858 7506-7542/? E/NfcService: setForegroundDispatch: Caller not in foreground.
2020-04-05 15:33:45.859 32411-32735/? W/System.err: javax.net.ssl.SSLException: Write error: ssl=0x7c105b0c48: I/O error during system call, Broken pipe
2020-04-05 15:33:45.859 32411-32411/? E/class com.package.product.NFCPlugin: Equal Result:true
2020-04-05 15:33:45.860 2437-2462/? V/DesktopModeManager: Notification is not exist.
2020-04-05 15:33:45.860 5005-5005/? I/OpaLayout: Setting opa enabled to true
2020-04-05 15:33:45.863 2437-8224/? D/InputDispatcher: Window went away: Window{f88f9f9 u0 com.lge.launcher3/com.lge.launcher3.LauncherExtension}
I have found several places to print the log. As a result, I found the part that outputs the same log in Android Code Search.
https://cs.android.com/android/platform/superproject/+/master:packages/apps/Nfc/src/com/android/nfc/NfcService.java;l=1053;bpv=1;bpt=1?q=NfcService:%20setForegroundDispatch%20enable&ss=android%2Fplatform%2Fsuperproject
@Override
public void setForegroundDispatch(PendingIntent intent,
IntentFilter[] filters, TechListParcel techListsParcel)
{
NfcPermissions.enforceUserPermissions(mContext);
if (!mForegroundUtils.isInForeground(Binder.getCallingUid()))
{
Log.e(TAG, "setForegroundDispatch: Caller not in foreground.");
return;
}
// Short-cut the disable path
if (intent == null && filters == null && techListsParcel == null)
{
mNfcDispatcher.setForegroundDispatch(null, null, null);
return;
}
// Validate the IntentFilters
if (filters != null) {
if (filters.length == 0) {
filters = null;
} else {
for (IntentFilter filter : filters) {
if (filter == null) {
throw new IllegalArgumentException("null IntentFilter");
}
}
}
}
// Validate the tech lists
String[][] techLists = null;
if (techListsParcel != null) {
techLists = techListsParcel.getTechLists();
}
mNfcDispatcher.setForegroundDispatch(intent, filters, techLists);
}
According to the code, if a log occurs, processing is stopped without returning any results. So it seems that the foregroundDispatch does not proceed and goes over.
I've been trying for a long time to solve this issue, but couldn't find the same case, so I think it's a new issue in android 10.
Does anyone know how to fix this?
Lastly, I'm sorry that it was difficult to understand because I used a translation site to write this question.
Below is the code for the plugin.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
m_instance=this;
mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (mNfcAdapter == null)
{
finish();
return;
}
pendingIntent = PendingIntent.getActivity(NFCPlugin.this, 0, new Intent(NFCPlugin.this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
IntentFilter _ndfFilter = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
try
{
_ndfFilter.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
IntentFilter _ndfFilter_NDEF = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
try {
_ndfFilter_NDEF.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
IntentFilter _ndfFilter_Tech = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
try {
_ndfFilter_Tech.addDataType("*/*");
}
catch (MalformedMimeTypeException e) {
throw new RuntimeException("Filter fail:", e);
}
mIntentFilter = new IntentFilter[] { _ndfFilter ,_ndfFilter_NDEF,_ndfFilter_Tech};
techListsArray = new String[][] {
new String[] {NFCPlugin.class.getName()},
new String[] {TagTechnology.class.getName()},
new String[] {NfcA.class.getName()},
new String[] {NfcB.class.getName()},
new String[] {NfcV.class.getName()},
new String[] {IsoDep.class.getName()},
new String[] {Ndef.class.getName()},
new String[] {NdefFormatable.class.getName()}
};
}
@Override
public void onResume() {
super.onResume();
Log.e(NFCPlugin.class.toString(), "onResume Activity");
mNfcAdapter.enableForegroundDispatch(this, pendingIntent, mIntentFilter, techListsArray);
}
@Override
public void onPause() {
super.onPause();
Log.e(NFCPlugin.class.toString(), "onPause Activity");
mNfcAdapter.disableForegroundDispatch(this);
}
Next is the manifest content.
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.package.product"
xmlns:tools="http://schemas.android.com/tools"
android:installLocation="preferExternal">
<uses-permission android:name="android.permission.NFC" >
</uses-permission>
<uses-feature
android:name="android.hardware.nfc"
android:required="true" >
</uses-feature>
<supports-screens
android:smallScreens="true"
android:normalScreens="true"
android:largeScreens="true"
android:xlargeScreens="true"
android:anyDensity="true"/>
<application
android:theme="@style/UnityThemeSelector"
android:icon="@mipmap/app_icon"
android:label="@string/app_name"
android:networkSecurityConfig="@xml/network_security_config"
>
<activity android:name=".NFCPlugin"
android:launchMode="singleTask"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:screenOrientation="landscape"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.TAG_DISCOVERED" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.TECH_DISCOVERED"/>
</intent-filter>
<meta-data android:name="android.nfc.action.TECH_DISCOVERED"
android:resource="@xml/tech_list" />
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
</application>
</manifest>
lastly, it is the contents of techList required for TECH_DISCOVERED.
<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>
</resources>
</details>
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