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AN4430 датащи(PDF) 22 Page - STMicroelectronics

номер детали AN4430
подробное описание детали  Designing an NFC Android Application for M24SR and M24LR devices
PDF  42 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4430 датащи(HTML) 22 Page - STMicroelectronics

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How to create an Android Application for ST dual memories
AN4430
22/42
DocID025722 Rev 1
Complementary intent-filter
Android system also lets developer to refine the kind of intent he wants to act on. Keeping
the NDEF_DISCOVERED message, developer may want to only manage with a MIME type
of text/plain:
or wants to act on certain URI in the form of http://www.st.com:
In case developer wants the activity component been activated on
ACTION_TECH_DISCOVERED intent, he must write a XML file to be store in res/xml folder.
Name of the file is what the developer wish (ex: nfc_tech_filter.xml). This file lists the
technology supported by the component within a tech-list set as follows:
Once the XML NFC filter resources is created, the intent-filter on
ACTION_TECH_DISCOVERED is:
The component activity will be then started by the Android system once a tag is discovered
with IsoDep, NfcA, NfcB or Nfcf capabilities. (Note that if the detected TAG gets a NDEF
message in and if a component is registered to treat NDEF intent the current application will
never receive the ACTION_TECH_DISCOVERED intent.)
<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.NDEF_DISCOVERED"/> 
    <category android:name="android.intent.category.DEFAULT"/> 
    <data android:scheme="http" 
              android:host="www.st.com"/> 
</intent‐filter>
 
<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‐list> 
</resources>
<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" />



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