1 files changed, 19 insertions, 0 deletions
diff --git a/core/java/android/app/AlertDialog.java b/core/java/android/app/AlertDialog.java
index 4a629bb..ac3ca55 100644
--- a/core/java/android/app/AlertDialog.java
+++ b/core/java/android/app/AlertDialog.java
@@ -28,6 +28,7 @@ import android.util.Log;
 import android.util.TypedValue;
 import android.view.ContextThemeWrapper;
 import android.view.KeyEvent;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.AdapterView;
@@ -81,6 +82,24 @@ public class AlertDialog extends Dialog implements DialogInterface {
         return outValue.resourceId;
     }
 
+    @Override
+    public boolean onTouchEvent(MotionEvent ev) {
+        if (mCancelable) {
+            final View decor = mWindow.getDecorView();
+            final int width = decor.getWidth();
+            final int height = decor.getHeight();
+            final float x = ev.getX();
+            final float y = ev.getY();
+
+            if (mCancelable && (x < 0 || x > width || y < 0 || y > height)) {
+                cancel();
+                return true;
+            }
+        }
+
+        return super.onTouchEvent(ev);
+    }
+
     /**
      * Gets one of the buttons used in the dialog.
      * <p>