转：http://blog.csdn.net/johnnycode/article/details/24807833
NFC注册方式分为两种，第一种在 AndroidManifest.xml 中进行注册，第二在代码中动态注册。
本次介绍 AndroidManifest 中注册方式。
1、添加NFC权限
<uses-permission android:name="android.permission.NFC" />
2、在Activity中添加事件
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<activity
android:name=".MainActivity"
android:configChanges="keyboardHidden|orientation"
android:launchMode="singleTask"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.TAG_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>
3、创建 nfc_tech_filter.xml 文件内容，xml保存路径在 res/xml/ 下
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<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2" >
<tech-list>
<tech>android.nfc.tech.MifareClassic</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.MifareUltralight</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.NfcA</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.NfcF</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.Ndef</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.NfcV</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.NfcB</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.NdefFormatable</tech>
</tech-list>
<tech-list>
<tech>android.nfc.tech.IsoDep</tech>
</tech-list>
</resources>
OK，搞定！注意 nfc_tech_filter.xml 中内容不要格式化否则无法进行NFC标签匹配。
