1 files changed, 12 insertions, 0 deletions
diff --git a/src/com/android/camera/ImageViewTouchBase.java b/src/com/android/camera/ImageViewTouchBase.java
index 9993373..7cdf55e 100644
--- a/src/com/android/camera/ImageViewTouchBase.java
+++ b/src/com/android/camera/ImageViewTouchBase.java
@@ -13,6 +13,7 @@ import android.util.Config;
 import android.util.Log;
 import android.view.animation.Animation;
 import android.view.animation.TranslateAnimation;
+import android.view.KeyEvent;
 import android.widget.ImageView;
 
 abstract public class ImageViewTouchBase extends ImageView {
@@ -91,6 +92,17 @@ abstract public class ImageViewTouchBase extends ImageView {
         }
     }
 
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK && getScale() > 1.0f) {
+            // If we're zoomed in, pressing Back jumps out to show the entire image, otherwise Back
+            // returns the user to the gallery.
+            zoomTo(1.0f);
+            return true;
+        }
+        return super.onKeyDown(keyCode, event);
+    }
+
     protected Handler mHandler = new Handler();
     
     protected int mLastXTouchPos;