1 files changed, 17 insertions, 0 deletions
diff --git a/org.fox.ttcomics/src/main/java/com/github/chrisbanes/photoview/OnScaleChangedListener.java b/org.fox.ttcomics/src/main/java/com/github/chrisbanes/photoview/OnScaleChangedListener.java
new file mode 100644
index 0000000..c6bb7a6
--- /dev/null
+++ b/org.fox.ttcomics/src/main/java/com/github/chrisbanes/photoview/OnScaleChangedListener.java
@@ -0,0 +1,17 @@
+package com.github.chrisbanes.photoview;
+
+
+/**
+ * Interface definition for callback to be invoked when attached ImageView scale changes
+ */
+public interface OnScaleChangedListener {
+
+    /**
+     * Callback for when the scale changes
+     *
+     * @param scaleFactor the scale factor (less than 1 for zoom out, greater than 1 for zoom in)
+     * @param focusX      focal point X position
+     * @param focusY      focal point Y position
+     */
+    void onScaleChange(float scaleFactor, float focusX, float focusY);
+}