Add getCdmaPrlVersion().

Bug:27612001
Change-Id: Icce9e99d360e30268d41bc063eeefc7484627df6

telephony/java/android/telephony/TelephonyManager.java

@@ -5423,6 +5423,39 @@ public class TelephonyManager {
         return null;
     }
 
+    /**
+     * Return the Preferred Roaming List Version
+     *
+     * Requires that the calling app has READ_PRIVILEGED_PHONE_STATE permission
+     *
+     * @return PRLVersion or null if error.
+     * @hide
+     */
+    public String getCdmaPrlVersion() {
+        return getCdmaPrlVersion(getDefaultSubscription());
+    }
+
+    /**
+     * Return the Preferred Roaming List Version
+     *
+     * Requires that the calling app has READ_PRIVILEGED_PHONE_STATE permission
+     *
+     * @param subId the subscription ID that this request applies to.
+     * @return PRLVersion or null if error.
+     * @hide
+     */
+    public String getCdmaPrlVersion(int subId) {
+        try {
+            ITelephony service = getITelephony();
+            if (service != null) {
+                return service.getCdmaPrlVersion(subId);
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "Error calling ITelephony#getCdmaPrlVersion", e);
+        }
+        return null;
+    }
+
     /**
      * Get snapshot of Telephony histograms
      * @return List of Telephony histograms

telephony/java/com/android/internal/telephony/ITelephony.aidl

@@ -1106,6 +1106,16 @@ interface ITelephony {
     */
     String getEsn(int subId);
 
+    /**
+    * Return the Preferred Roaming List Version
+    *
+    * Requires that the calling app has READ_PRIVILEGED_PHONE_STATE permission
+    * @param subId the subscription ID that this request applies to.
+    * @return PRLVersion or null if error.
+    * @hide
+    */
+    String getCdmaPrlVersion(int subId);
+
     /**
      * Get snapshot of Telephony histograms
      * @return List of Telephony histograms