Update drawables to fix CTS test failures

Change-Id: I78617aedab450f5bc18807c03d07ee776584ece0

3 files changed, 20 insertions, 1 deletions

diff --git a/graphics/java/android/graphics/drawable/BitmapDrawable.java b/graphics/java/android/graphics/drawable/BitmapDrawable.java
index c95ac8238d72..ef6c0859f666 100644
--- a/graphics/java/android/graphics/drawable/BitmapDrawable.java
+++ b/graphics/java/android/graphics/drawable/BitmapDrawable.java
@@ -706,10 +706,24 @@ public class BitmapDrawable extends Drawable {
 
         final TypedArray a = obtainAttributes(r, theme, attrs, R.styleable.BitmapDrawable);
         updateStateFromTypedArray(a);
+        verifyState(a);
         a.recycle();
     }
 
     /**
+     * Ensures all required attributes are set.
+     *
+     * @throws XmlPullParserException if any required attributes are missing
+     */
+    private void verifyState(TypedArray a) throws XmlPullParserException {
+        final BitmapState state = mBitmapState;
+        if (state.mBitmap == null) {
+            throw new XmlPullParserException(a.getPositionDescription() +
+                    ": <bitmap> requires a valid src attribute");
+        }
+    }
+
+    /**
      * Updates the constant state from the values in the typed array.
      */
     private void updateStateFromTypedArray(TypedArray a) throws XmlPullParserException {
@@ -912,6 +926,7 @@ public class BitmapDrawable extends Drawable {
      */
     private BitmapDrawable(BitmapState state, Resources res, Theme theme) {
         if (theme != null && state.canApplyTheme()) {
+            // If we need to apply a theme, implicitly mutate.
             mBitmapState = new BitmapState(state);
             applyTheme(theme);
         } else {
diff --git a/graphics/java/android/graphics/drawable/GradientDrawable.java b/graphics/java/android/graphics/drawable/GradientDrawable.java
index 241b89e2d6b8..005b8efeba32 100644
--- a/graphics/java/android/graphics/drawable/GradientDrawable.java
+++ b/graphics/java/android/graphics/drawable/GradientDrawable.java
@@ -1662,9 +1662,12 @@ public class GradientDrawable extends Drawable {
      * @param theme Theme to apply to the drawable
      */
     private GradientDrawable(GradientState state, Theme theme) {
-        mGradientState = new GradientState(state);
         if (theme != null && state.canApplyTheme()) {
+            // If we need to apply a theme, implicitly mutate.
+            mGradientState = new GradientState(state);
             applyTheme(theme);
+        } else {
+            mGradientState = state;
         }
 
         initializeWithState(state);
diff --git a/graphics/java/android/graphics/drawable/NinePatchDrawable.java b/graphics/java/android/graphics/drawable/NinePatchDrawable.java
index 77ed29a825d3..fea68ee1a4db 100644
--- a/graphics/java/android/graphics/drawable/NinePatchDrawable.java
+++ b/graphics/java/android/graphics/drawable/NinePatchDrawable.java
@@ -659,6 +659,7 @@ public class NinePatchDrawable extends Drawable {
      */
     private NinePatchDrawable(NinePatchState state, Resources res, Theme theme) {
         if (theme != null && state.canApplyTheme()) {
+            // If we need to apply a theme, implicitly mutate.
             mNinePatchState = new NinePatchState(state);
             applyTheme(theme);
         } else {