add array's functions to UiCollection

automator/src/main/java/com/stardust/automator/UiObjectCollection.java

@@ -53,6 +53,10 @@ public class UiObjectCollection {
         mNodes = list;
     }
 
+    public UiObject[] toArray(){
+        return mNodes.toArray(new UiObject[mNodes.size()]);
+    }
+
     public boolean performAction(int action) {
         boolean fail = false;
         for (UiObject node : mNodes) {
@@ -204,15 +208,6 @@ public class UiObjectCollection {
         return this;
     }
 
-    public UiObjectCollection filter(Func1<UiObject, Boolean> func1) {
-        List<UiObject> list = new ArrayList<>();
-        for (UiObject uiObject : mNodes) {
-            if (func1.call(uiObject))
-                list.add(uiObject);
-        }
-        return of(list);
-    }
-
     public UiObjectCollection find(UiGlobalSelector selector) {
         List<UiObject> list = new ArrayList<>();
         for (UiObject object : mNodes) {