NFC支持所有类型的卡的读取

来源：互联网发布：淘宝挖宝酱假货编辑：程序博客网时间：2024/06/05 06:43

首先是NFCActivity的声明

<activity            android:name="com.example.NFCActivity"            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.NDEF_DISCOVERED" />                <category android:name="android.intent.category.DEFAULT" />                <data android:mimeType="text/plain"/>            </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/nfc_tech_filter" />            <intent-filter>                <action android:name="android.nfc.action.TAG_DISCOVERED" />                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>        </activity>

然后是@xml/nfc_tech_filter的配置必须是

<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">     <tech-list>        <tech>android.nfc.tech.IsoDep</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.NfcA</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.NfcB</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.NfcF</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.NfcV</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.Ndef</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.NdefFormatable</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.MifareClassic</tech>    </tech-list>    <tech-list>        <tech>android.nfc.tech.MifareUltralight</tech>    </tech-list></resources>

不能一个tech-list中包含所有的tech，不可能有一个卡支持所有的类型

源码请见

https://github.com/xujinyang/NFCALL

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