Hi, I am repeatedly getting "02-28 06:16:40.267: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol" in my Sudoku program. Also my program doesn't proceed from these statements even after 5 hours.My files are the same as given in Ed Burnette's book. My files are 1. main.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/main_title" /> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/continue_label"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/new_game_label"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/about_label"/> <Button android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/exit_label"/>
</LinearLayout> 2.strings.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">Sudoku</string> <string name="main_title">AndroidSudoku</string> <string name="continue_label">Continue</string> <string name="new_game_label">New Game</string> <string name="about_label">About</string> <string name="exit_label">Exit</string> </resources> 3.AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"; package="org.example.sudoku" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="8" /> <application android:icon="@drawable/icon" android:label="@string/ app_name"> <activity android:name=".Sudoku" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> 4.Sudoku.java package org.example.sudoku; import android.app.Activity; import android.os.Bundle; public class Sudoku extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } } 5. My logCat is: 02-28 05:49:05.238: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 05:49:05.409: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 05:51:39.978: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 05:56:40.007: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:01:40.027: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:06:40.107: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:11:40.139: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:12:00.658: DEBUG/dalvikvm(66): GC_FOR_MALLOC freed 15329 objects / 647896 bytes in 463ms 02-28 06:16:40.267: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:21:40.297: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:26:40.367: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:31:40.467: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:36:40.577: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:38:36.677: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 06:38:36.758: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 06:38:37.007: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 06:38:37.148: DEBUG/KeyguardViewMediator(66): pokeWakelock(5000) 02-28 06:39:00.538: DEBUG/dalvikvm(66): GC_FOR_MALLOC freed 15023 objects / 615448 bytes in 423ms 02-28 06:41:40.678: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:46:40.688: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:51:40.767: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 06:56:40.847: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:01:40.917: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:05:42.987: DEBUG/dalvikvm(182): GC_FOR_MALLOC freed 9917 objects / 473592 bytes in 360ms 02-28 07:06:40.946: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:08:00.658: DEBUG/dalvikvm(66): GC_FOR_MALLOC freed 15507 objects / 636304 bytes in 485ms 02-28 07:11:41.047: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:16:41.136: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:21:41.248: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol 02-28 07:26:41.307: DEBUG/SntpClient(66): request time failed: java.net.SocketException: Address family not supported by protocol please please help. On 2/28/11, Nick Pelly <[email protected]> wrote: > Hi Dave, > > Correct, we do not support Card Emulation in the SDK. It's actually very > hard to do this in a consistent way across the Android platform, due to the > current hardware architecture of NFC. Different NFC hardware can > support Card Emulation in very different ways, to the point where its very > hard to design a useful and consistent API. > > Peer-to-peer is the way to go. We have just one API call for this now - > NfcAdapter.enableForegroundNdefPush() but it is surprisingly powerful. > > Nick > > > On Fri, Feb 25, 2011 at 9:33 AM, davemac <[email protected]> wrote: > >> I'm no NFC guru, but from what I can tell of the docs and the samples, >> there's no way to do card emulation on an Android device at this time, >> using the SDK. Is that correct? >> >> I see the published classes/methods for reading/writing tags, and for >> the Ndef push using P2P and the mysterious com.android.npp package >> (anyone know where there's more information on that?). But that >> doesn't get me to turning the Android device into whatever tag I want >> it to be read as by some other NFC reader, at least I'm pretty sure it >> doesn't. Unless the NFC sensor reads and writes my device's tag if >> there happens to be one on the device. Is that how it's supposed to >> work? If that last part is true, is there some sort of convention on >> how I recognize "my" tag as compared to any other tag I come into >> contactless with? >> >> I saw posts describing how to do this from the NDK level but I'm >> asking about from the SDK level. I also saw source code with >> unpublished methods for card emulation, which leads me to believe that >> it's just not possible, yet. >> >> Thanks for any help on this. >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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