diff --git a/TLTransitions/TransitionController/TLPercentDrivenInteractiveTransition.m b/TLTransitions/TransitionController/TLPercentDrivenInteractiveTransition.m
index 4694c77..9d8e9e8 100644
--- a/TLTransitions/TransitionController/TLPercentDrivenInteractiveTransition.m
+++ b/TLTransitions/TransitionController/TLPercentDrivenInteractiveTransition.m
@@ -67,7 +67,9 @@ - (CGFloat)percentForGesture:(UIPanGestureRecognizer *)gesture
     
     CGFloat percent = 0.f;
     
-    if ([gesture isMemberOfClass: [UIScreenEdgePanGestureRecognizer class]]) {
+    if ([gesture isMemberOfClass: [UIScreenEdgePanGestureRecognizer class]] ||
+        [gesture isMemberOfClass: NSClassFromString(@"TLScreenEdgePanGestureRecognizer")])
+    {
         if (self.edge == UIRectEdgeRight) {
             percent = (width - locationInSourceView.x) / width;
             
@@ -76,7 +78,7 @@ - (CGFloat)percentForGesture:(UIPanGestureRecognizer *)gesture
             percent = locationInSourceView.x / width;
         }
         
-    }else {
+    }else { // 用户自定义收拾
         
         if (self.edge == UIRectEdgeRight) {
             percent = (width - locationInSourceView.x) / width;