1 files changed, 50 insertions, 0 deletions
diff --git a/shadows/framework/src/main/java/org/robolectric/shadows/ShadowNativeNinePatch.java b/shadows/framework/src/main/java/org/robolectric/shadows/ShadowNativeNinePatch.java
new file mode 100644
index 000000000..11e5ba867
--- /dev/null
+++ b/shadows/framework/src/main/java/org/robolectric/shadows/ShadowNativeNinePatch.java
@@ -0,0 +1,50 @@
+package org.robolectric.shadows;
+
+import static android.os.Build.VERSION_CODES.O;
+import static android.os.Build.VERSION_CODES.Q;
+
+import android.graphics.NinePatch;
+import android.graphics.Rect;
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+import org.robolectric.nativeruntime.DefaultNativeRuntimeLoader;
+import org.robolectric.nativeruntime.NinePatchNatives;
+import org.robolectric.shadows.ShadowNativeNinePatch.Picker;
+
+/** Shadow for {@link NinePatch} that is backed by native code */
+@Implements(
+    value = NinePatch.class,
+    minSdk = O,
+    shadowPicker = Picker.class,
+    isInAndroidSdk = false)
+public class ShadowNativeNinePatch {
+
+  @Implementation
+  protected static boolean isNinePatchChunk(byte[] chunk) {
+    DefaultNativeRuntimeLoader.injectAndLoad();
+    return NinePatchNatives.isNinePatchChunk(chunk);
+  }
+
+  @Implementation
+  protected static long validateNinePatchChunk(byte[] chunk) {
+    DefaultNativeRuntimeLoader.injectAndLoad();
+    return NinePatchNatives.validateNinePatchChunk(chunk);
+  }
+
+  @Implementation
+  protected static void nativeFinalize(long chunk) {
+    NinePatchNatives.nativeFinalize(chunk);
+  }
+
+  @Implementation(minSdk = Q)
+  protected static long nativeGetTransparentRegion(long bitmapHandle, long chunk, Rect location) {
+    return NinePatchNatives.nativeGetTransparentRegion(bitmapHandle, chunk, location);
+  }
+
+  /** Shadow picker for {@link NinePatch}. */
+  public static final class Picker extends GraphicsShadowPicker<Object> {
+    public Picker() {
+      super(ShadowNinePatch.class, ShadowNativeNinePatch.class);
+    }
+  }
+}