fix for ui blocking on text entry. BEWARE - you'll need to wrap your …

…ui updates on main thread. eg dispatch_async(dispatch_get_main_queue()) { }
johndpope · May 3, 2016 · bdc6190 · bdc6190
1 parent e853480
commit bdc6190
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Showing 2 changed files with 22 additions and 14 deletions.
diff --git a/RAMReel/Framework/CollectionViewWrapper.swift b/RAMReel/Framework/CollectionViewWrapper.swift
@@ -170,24 +170,30 @@ public class CollectionViewWrapper
     // MARK: Update & Adjust
 
     func updateOffset(notification: NSNotification? = nil) {
-        collectionView.reloadData()
-        collectionView.layoutIfNeeded()
 
-        let durationNumber = notification?.userInfo?[UIKeyboardAnimationDurationUserInfoKey] as? NSNumber
-        let duration = durationNumber?.doubleValue ?? 0.1
-
-        UIView.animateWithDuration(duration) {
-            let number    = self.collectionView.numberOfItemsInSection(0)
-            let itemIndex = self.scrollDelegate.itemIndex ?? number/2
+        dispatch_async(dispatch_get_main_queue()) {
+            self.collectionView.reloadData()
+             self.collectionView.layoutIfNeeded()
+            
+            let durationNumber = notification?.userInfo?[UIKeyboardAnimationDurationUserInfoKey] as? NSNumber
+            let duration = durationNumber?.doubleValue ?? 0.1
 
-            if itemIndex > 0 {
-                let inset      = self.collectionView.contentInset.top
-                let itemHeight = self.collectionLayout.itemHeight
-                let offset     = CGPoint(x: 0, y: CGFloat(itemIndex) * itemHeight - inset)
+            UIView.animateWithDuration(duration) {
+                let number    = self.collectionView.numberOfItemsInSection(0)
+                let itemIndex = self.scrollDelegate.itemIndex ?? number/2
 
-                self.collectionView.contentOffset = offset
+                if itemIndex > 0 {
+                    let inset      = self.collectionView.contentInset.top
+                    let itemHeight = self.collectionLayout.itemHeight
+                    let offset     = CGPoint(x: 0, y: CGFloat(itemIndex) * itemHeight - inset)
+
+                    self.collectionView.contentOffset = offset
+                }
             }
         }
+
+
+
     }
 
     func adjustScroll(notification: NSNotification? = nil) {

diff --git a/RAMReel/Framework/TextFieldReactor.swift b/RAMReel/Framework/TextFieldReactor.swift
@@ -63,7 +63,9 @@ public struct TextFieldReactor
 
         self.editingTarget = TextFieldTarget(controlEvents: UIControlEvents.EditingChanged, textField: textField) {
             if let text = $0.text {
-                dataFlow.transport(text)
+                dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0)) {
+                    dataFlow.transport(text)
+                }
             }
         }
     }