Merge pull request #108 from google/is-multi-dex-api

Is multi dex api

Author: borisf

ClassySharkWS/src/com/google/classyshark/Shark.java

@@ -19,6 +19,7 @@
 import com.google.classyshark.silverghost.SilverGhostFacade;
 
 import java.io.File;
+import java.util.LinkedList;
 import java.util.List;
 
 import static com.google.classyshark.silverghost.SilverGhostFacade.getGeneratedClassString;
@@ -74,7 +75,16 @@ public List<String> getAllStrings() {
         return SilverGhostFacade.getAllStrings(archiveFile);
     }
 
+    /**
+     *
+     * @return
+     */
+    public boolean isMultiDex() {
+        return SilverGhostFacade.isMultiDex(archiveFile);
+    }
+    
     public static void main(String[] args) {
+
         File apk =
                 new File("/Users/bfarber/Desktop/Scenarios/3 APKs/"
                         + "com.google.samples.apps.iosched-333.apk");
@@ -86,5 +96,6 @@ public static void main(String[] args) {
         System.out.println(shark.getManifest());
         System.out.println(shark.getAllMethods());
         //System.out.println(shark.getAllStrings());
+        System.out.println(shark.isMultiDex());
     }
 }

ClassySharkWS/src/com/google/classyshark/silverghost/SilverGhostFacade.java

@@ -154,4 +154,29 @@ public static void exportArchive(List<String> args) {
             System.err.println("Internal error - couldn't write file");
         }
     }
+
+    /** returns true if the apk is multidex
+     *
+     * @param archiveFile
+     * @return
+     */
+    public static boolean isMultiDex(File archiveFile) {
+        ContentReader contentReader = new ContentReader(archiveFile);
+        contentReader.load();
+
+        List<String> allClassNames = contentReader.getAllClassNames();
+        int numDexes = 0;
+
+        for(String classEntry : allClassNames) {
+            if(classEntry.endsWith(".dex")) {
+                numDexes++;
+                // 2 dexes or more + optimization
+                if(numDexes == 2) {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
 }