android - 发现自定义格式的 nfc 标签时打开我的应用程序

Question

我正在制作一个库存管理应用程序。每个 stock_item 都有一个标签，带有唯一标识符和 custom_format。像这样:

stock_manager_pro:stock_item:12345

or

stock_manager_pro:user:john

I want to make my app open automatically when the device discovers a tag with whose content that starts with stock_manager_pro

With this code my apps its opened when the phone discovers a nfc tag with plain/text content, but I want to be able to filter customer texts.

        <intent-filter>
            <action android:name="android.nfc.action.NDEF_DISCOVERED"/>
            <data android:mimeType="text/plain" />
            <category android:name="android.intent.category.DEFAULT"/>
        </intent-filter>

Answer 1

我正在处理同样的问题...我发现您应该创建自己的自定义 MIME 类型。在 list 文件中你应该简单地删除

<action android:name="android.nfc.action.NDEF_DISCOVERED"/> 

例如

<intent-filter >
   <!--  <action   android:name="android.nfc.action.NDEF_DISCOVERED" />-->
   <category android:name="android.intent.category.DEFAULT" />
   <data android:mimeType="application/vnd.com.nfctagwriter" />
</intent-filter>