fix: prefer res name instead of "guessing" based on ids

Author: iBotPeaches

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/ResTypeSpec.java

@@ -23,9 +23,11 @@
 public final class ResTypeSpec {
 
     public static final String RES_TYPE_NAME_ARRAY = "array";
+    public static final String RES_TYPE_NAME_ATTR = "attr";
+    public static final String RES_TYPE_NAME_ATTR_PRIVATE = "^attr-private";
     public static final String RES_TYPE_NAME_PLURALS = "plurals";
+    public static final String RES_TYPE_NAME_STRING = "string";
     public static final String RES_TYPE_NAME_STYLES = "style";
-    public static final String RES_TYPE_NAME_ATTR = "attr";
 
     private final String mName;
     private final Map<String, ResResSpec> mResSpecs = new LinkedHashMap<>();
@@ -46,7 +48,7 @@ public int getId() {
     }
 
     public boolean isString() {
-        return mName.equalsIgnoreCase("string");
+        return mName.equalsIgnoreCase(RES_TYPE_NAME_STRING);
     }
 
     public ResResSpec getResSpec(String name) throws AndrolibException {

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResArrayValue.java

@@ -91,6 +91,4 @@ public String getType() throws AndrolibException {
 
     private final ResScalarValue[] mItems;
     private final String[] AllowedArrayTypes = {"string", "integer"};
-
-    public static final int BAG_KEY_ARRAY_START = 0x02000000;
 }

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResPluralsValue.java

@@ -59,6 +59,5 @@ public void serializeToResValuesXml(XmlSerializer serializer,
     private final ResScalarValue[] mItems;
 
     public static final int BAG_KEY_PLURALS_START = 0x01000004;
-    public static final int BAG_KEY_PLURALS_END = 0x01000009;
     private static final String[] QUANTITY_MAP = new String[] { "other", "zero", "one", "two", "few", "many" };
 }

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/data/value/ResValueFactory.java

@@ -80,39 +80,29 @@ public ResIntBasedValue factory(String value, int rawValue) {
         return new ResStringValue(value, rawValue);
     }
 
-    public ResBagValue bagFactory(int parent, Duo<Integer, ResScalarValue>[] items, ResTypeSpec resTypeSpec) throws AndrolibException {
+    public ResBagValue bagFactory(int parent, Duo<Integer, ResScalarValue>[] items, ResTypeSpec resTypeSpec)
+        throws AndrolibException {
         ResReferenceValue parentVal = newReference(parent, null);
 
         if (items.length == 0) {
             return new ResBagValue(parentVal);
         }
-        int key = items[0].m1;
-        if (key == ResAttr.BAG_KEY_ATTR_TYPE) {
-            return ResAttr.factory(parentVal, items, this, mPackage);
-        }
-
         String resTypeName = resTypeSpec.getName();
 
-        // Android O Preview added an unknown enum for c. This is hardcoded as 0 for now.
-        if (ResTypeSpec.RES_TYPE_NAME_ARRAY.equals(resTypeName)
-                || key == ResArrayValue.BAG_KEY_ARRAY_START || key == 0) {
-            return new ResArrayValue(parentVal, items);
-        }
-
-        if (ResTypeSpec.RES_TYPE_NAME_PLURALS.equals(resTypeName) ||
-                (key >= ResPluralsValue.BAG_KEY_PLURALS_START && key <= ResPluralsValue.BAG_KEY_PLURALS_END)) {
-            return new ResPluralsValue(parentVal, items);
-        }
-
-        if (ResTypeSpec.RES_TYPE_NAME_ATTR.equals(resTypeName)) {
-            return new ResAttr(parentVal, 0, null, null, null);
-        }
-
-        if (resTypeName.startsWith(ResTypeSpec.RES_TYPE_NAME_STYLES)) {
-            return new ResStyleValue(parentVal, items, this);
+        switch (resTypeName) {
+            case ResTypeSpec.RES_TYPE_NAME_ATTR:
+            case ResTypeSpec.RES_TYPE_NAME_ATTR_PRIVATE:
+                return ResAttr.factory(parentVal, items, this, mPackage);
+            case ResTypeSpec.RES_TYPE_NAME_ARRAY:
+                return new ResArrayValue(parentVal, items);
+            case ResTypeSpec.RES_TYPE_NAME_PLURALS:
+                return new ResPluralsValue(parentVal, items);
+            default:
+                if (resTypeName.startsWith(ResTypeSpec.RES_TYPE_NAME_STYLES)) {
+                    return new ResStyleValue(parentVal, items, this);
+                }
+                throw new AndrolibException("unsupported res type name for bags. Found: " + resTypeName);
         }
-
-        throw new AndrolibException("unsupported res type name for bags. Found: " + resTypeName);
     }
 
     public ResReferenceValue newReference(int resID, String rawValue) {