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refactor snapContentOfConversationCollectionViewToBottom(:); logic of textSendAction

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This commit is contained in:
nixzhu
2015-11-03 12:15:15 +08:00
parent 44affa78c6
commit cca749134e
1 changed files with 26 additions and 24 deletions
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Yep/ViewControllers/Conversation/ConversationViewController.swift
+26 -24
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@@ -596,34 +596,18 @@ class ConversationViewController: BaseViewController {
messageToolbar.stateTransitionAction = { [weak self] (messageToolbar, previousState, currentState) in
if let strongSelf = self {
switch currentState {
switch currentState {
case .BeginTextInput:
self?.tryFoldFeedView()
case .BeginTextInput:
self?.tryFoldFeedView()
self?.snapContentOfConversationCollectionViewToBottom(forceAnimation: true)
case .TextInputing:
let bottom = strongSelf.view.bounds.height - messageToolbar.frame.origin.y
println("bottom: \(bottom)")
let bottomOffset = bottom - strongSelf.conversationCollectionView.contentInset.bottom
case .TextInputing:
self?.snapContentOfConversationCollectionViewToBottom()
if bottomOffset != 0 {
UIView.animateWithDuration(0.1, delay: 0.0, options: .CurveEaseInOut, animations: {
strongSelf.conversationCollectionView.contentInset.bottom = bottom
strongSelf.conversationCollectionView.contentOffset.y = strongSelf.conversationCollectionView.contentSize.height - messageToolbar.frame.origin.y
}, completion: { _ in })
//var newContentOffset = strongSelf.conversationCollectionView.contentOffset
//newContentOffset.y = strongSelf.conversationCollectionView.contentSize.height - messageToolbar.frame.origin.y
//strongSelf.conversationCollectionView.setContentOffset(newContentOffset, animated: true)
//println("newContentOffsetY: \(newContentOffset.y)")
}
default:
break
}
default:
break
}
}
@@ -708,6 +692,8 @@ class ConversationViewController: BaseViewController {
self?.cleanTextInput()
self?.snapContentOfConversationCollectionViewToBottom()
if text.isEmpty {
return
}
@@ -1288,6 +1274,22 @@ class ConversationViewController: BaseViewController {
self.feedView = feedView
}
private func snapContentOfConversationCollectionViewToBottom(forceAnimation forceAnimation: Bool = false) {
let bottom = view.bounds.height - messageToolbar.frame.origin.y
let bottomOffset = bottom - conversationCollectionView.contentInset.bottom
guard forceAnimation || bottomOffset != 0 else {
return
}
UIView.animateWithDuration(forceAnimation ? 0.25 : 0.1, delay: 0.0, options: .CurveEaseInOut, animations: { [weak self] in
if let strongSelf = self {
strongSelf.conversationCollectionView.contentInset.bottom = bottom
strongSelf.conversationCollectionView.contentOffset.y = strongSelf.conversationCollectionView.contentSize.height - strongSelf.messageToolbar.frame.origin.y
}
}, completion: { _ in })
}
// MARK: Private
private func setConversaitonCollectionViewContentInsetBottom(bottom: CGFloat) {