Fix momentum scroll bug on iOS (#6473)

Closes #4325
wix · Aug 17, 2020 · cb74af5 · cb74af5
1 parent ec2b0a0
commit cb74af5
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diff --git a/lib/ios/RNNComponentViewController.m b/lib/ios/RNNComponentViewController.m
@@ -1,4 +1,5 @@
 #import "RNNComponentViewController.h"
+#import "UIView+Utils.h"
 
 @implementation RNNComponentViewController
 
@@ -36,6 +37,9 @@ - (void)viewDidAppear:(BOOL)animated {
 - (void)viewDidDisappear:(BOOL)animated {
     [super viewDidDisappear:animated];
     [self componentDidDisappear];
+
+    // Fix's momentum scroll bug https://github.com/wix/react-native-navigation/issues/4325
+    [self.view stopMomentumScrollViews];
 }
 
 - (void)loadView {

diff --git a/lib/ios/Utils/UIView+Utils.h b/lib/ios/Utils/UIView+Utils.h
@@ -13,4 +13,6 @@ typedef NS_ENUM(NSInteger, ViewType) {
 
 - (ViewType)viewType;
 
+- (void)stopMomentumScrollViews;
+
 @end
diff --git a/lib/ios/Utils/UIView+Utils.m b/lib/ios/Utils/UIView+Utils.m
@@ -21,4 +21,15 @@ - (ViewType)viewType {
     return ViewTypeOther;
 }
 
+- (void)stopMomentumScrollViews {
+    if ([self isKindOfClass:[UIScrollView class]]){
+        UIScrollView* scrollView = (UIScrollView*)self;
+        [scrollView setContentOffset:scrollView.contentOffset animated:NO];
+    } else {
+      for (UIView *subview in self.subviews) {
+        [subview stopMomentumScrollViews];
+      }
+    }
+}
+
 @end