Realtime get iccid method

Author: markgrin

README.md

@@ -49,6 +49,17 @@ RNSimData.getCountryCode()
 NOTE: React Native "Modules", when having only constants, work with getters, and the result of `getSimInfo()` is
 undefined, you need to access the properties to get any info
 
+### Realtime methods
+These methods query SimInfo and callback with result.
+```
+RNSimData.getRealtimeIccid(iccids => {
+    if (!iccids)
+        console.log('get iccids call failed');
+    for (i in iccids)
+        console.log(iccids[i]);
+})
+```
+
 ### Caveats
 
 Might crash if tries to use in a phone without any SIM cards.

android/src/main/java/eu/sigrlami/rnsimdata/RNSimDataModule.java

@@ -3,6 +3,8 @@
 import java.util.HashMap;
 import java.util.Map;
 import java.util.List;
+import java.util.LinkedList;
+import java.util.ArrayList;
 
 import android.content.Context;
 import android.telephony.TelephonyManager;
@@ -13,6 +15,7 @@
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
 import com.facebook.react.bridge.ReactMethod;
 import com.facebook.react.bridge.Callback;
+import com.facebook.react.bridge.WritableNativeArray;
 
 public class RNSimDataModule extends ReactContextBaseJavaModule {
 
@@ -28,6 +31,26 @@ public String getName() {
     return "RNSimDataModule";
   }
 
+  @ReactMethod
+  public void getRealtimeIccid(Callback callback) {
+    try {
+      TelephonyManager telManager = (TelephonyManager) this.reactContext.getSystemService(Context.TELEPHONY_SERVICE);
+      WritableNativeArray result = new WritableNativeArray();
+
+      SubscriptionManager manager = (SubscriptionManager) this.reactContext.getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE);
+      List<SubscriptionInfo> subscriptionInfos = manager.getActiveSubscriptionInfoList();
+      for (SubscriptionInfo subInfo : subscriptionInfos) {
+          String iccId             = subInfo.getIccId();
+          result.pushString(iccId);
+      }
+      callback.invoke(result);
+    } catch (Exception e) {
+      e.printStackTrace();
+      callback.invoke(new String(""));
+    }
+  }
+
+
   @Override
   public Map<String, Object> getConstants() {
 
@@ -75,4 +98,4 @@ public Map<String, Object> getConstants() {
 
     return constants;
   }
-}
+}