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(Android™) PC/SC List Smart Card Readers (and USB Tokens)See more SCard ExamplesDemonstrates how to list the smart card readers and USB tokens connected to the computer. Note: This functionality was introduced in Chilkat v9.5.0.87.
// Important: Don't forget to include the call to System.loadLibrary // as shown at the bottom of this code sample. package com.test; import android.app.Activity; import com.chilkatsoft.*; import android.widget.TextView; import android.os.Bundle; public class SimpleActivity extends Activity { private static final String TAG = "Chilkat"; // Called when the activity is first created. @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkSCard scard = new CkSCard(); // First establish a context to the PC/SC Resource Manager boolean success = scard.EstablishContext("user"); if (success == false) { Log.i(TAG, scard.lastErrorText()); return; } CkStringTable stReaders = new CkStringTable(); success = scard.ListReaders(stReaders); if (success == false) { Log.i(TAG, scard.lastErrorText()); return; } int numReaders = stReaders.get_Count(); int i = 0; while (i < numReaders) { Log.i(TAG, String.valueOf(i) + ": " + stReaders.stringAt(i)); i = i + 1; } // Sample output: // 0: Alcor Micro USB Smart Card Reader 0 // 1: FS USB Token 0 // 2: FT Java Token 0 // 3: SCM Microsystems Inc. SCR33x USB Smart Card Reader 0 // 4: Yubico YubiKey OTP+FIDO+CCID 0 // Applications should always release the context when finished. success = scard.ReleaseContext(); if (success == false) { Log.i(TAG, scard.lastErrorText()); } } static { System.loadLibrary("chilkat"); // Note: If the incorrect library name is passed to System.loadLibrary, // then you will see the following error message at application startup: //"The application <your-application-name> has stopped unexpectedly. Please try again." } } |
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