Bump version -> 2.0.0-beta.8

Fixes #343 

This change filters out non ScreenFragment instances when iterating through the list of installed fragments. The reason why other fragments can be added to the manager is that some libraries (e.g. glide) use fragment manager to store screen local data and attach to the screen lifecycle.

android/src/main/java/com/swmansion/rnscreens/ScreenContainer.java

@@ -252,7 +252,9 @@ public class ScreenContainer<T extends ScreenFragment> extends ViewGroup {
     if (!orphaned.isEmpty()) {
       Object[] orphanedAry = orphaned.toArray();
       for (int i = 0; i < orphanedAry.length; i++) {
-        detachScreen((ScreenFragment) orphanedAry[i]);
+        if (orphanedAry[i] instanceof ScreenFragment) {
+          detachScreen((ScreenFragment) orphanedAry[i]);
+        }
       }
     }
 

ios/RNSScreenStack.m

@@ -22,7 +22,6 @@
 @end
 
 @implementation RNSScreenStackView {
-  BOOL _needUpdate;
   UINavigationController *_controller;
   NSMutableArray<RNSScreenView *> *_reactSubviews;
   NSMutableSet<RNSScreenView *> *_dismissedScreens;
@@ -38,7 +37,6 @@
     _dismissedScreens = [NSMutableSet new];
     _controller = [[UINavigationController alloc] init];
     _controller.delegate = self;
-    _needUpdate = NO;
     [self addSubview:_controller.view];
     _controller.interactivePopGestureRecognizer.delegate = self;
 
@@ -164,7 +162,12 @@
 
 - (void)didUpdateReactSubviews
 {
-  [self updateContainer];
+  // we need to wait until children have their layout set. At this point they don't have the layout
+  // set yet, however the layout call is already enqueued on ui thread. Enqueuing update call on the
+  // ui queue will guarantee that the update will run after layout.
+  dispatch_async(dispatch_get_main_queue(), ^{
+    [self updateContainer];
+  });
 }
 
 - (void)didMoveToWindow
@@ -281,6 +284,12 @@
     return;
   }
 
+  // if view controller is not yet attached to window we skip updates now and run them when view
+  // is attached
+  if (self.window == nil) {
+    return;
+  }
+
   UIViewController *top = controllers.lastObject;
   UIViewController *lastTop = _controller.viewControllers.lastObject;
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-screens",
-  "version": "2.0.0-beta.7",
+  "version": "2.0.0-beta.8",
   "description": "First incomplete navigation solution for your react-native app.",
   "scripts": {
     "start": "node node_modules/react-native/local-cli/cli.js start",