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updateUIWithKeyboardChange, conversationCollectionView.contentInset properly

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This commit is contained in:
nixzhu
2015-03-24 15:06:57 +08:00
parent 370559216e
commit 3da503d47a
1 changed files with 26 additions and 8 deletions
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Yep/ViewControllers/Conversation/ConversationViewController.swift
+26 -8
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@@ -25,7 +25,7 @@ class ConversationViewController: UIViewController {
// 使 messageToolbar 随着键盘出现或消失而移动
var updateMessageToolbarWithKeyboardChange = false {
var updateUIWithKeyboardChange = false {
willSet {
keyboardChangeObserver = newValue ? NSNotificationCenter.defaultCenter() : nil
}
@@ -42,7 +42,7 @@ class ConversationViewController: UIViewController {
deinit {
updateMessageToolbarWithKeyboardChange = false
updateUIWithKeyboardChange = false
}
override func viewDidLoad() {
@@ -51,15 +51,24 @@ class ConversationViewController: UIViewController {
conversationCollectionView.registerNib(UINib(nibName: chatLeftTextCellIdentifier, bundle: nil), forCellWithReuseIdentifier: chatLeftTextCellIdentifier)
conversationCollectionView.registerNib(UINib(nibName: chatRightTextCellIdentifier, bundle: nil), forCellWithReuseIdentifier: chatRightTextCellIdentifier)
var contentInset = conversationCollectionView.contentInset
contentInset.bottom = messageToolbar.intrinsicContentSize().height
conversationCollectionView.contentInset = contentInset
setConversaitonCollectionViewOriginalContentInset()
messageToolbarBottomConstraint.constant = 0
updateMessageToolbarWithKeyboardChange = true
updateUIWithKeyboardChange = true
}
// MARK: Private
private func setConversaitonCollectionViewOriginalContentInsetBottom(bottom: CGFloat) {
var contentInset = conversationCollectionView.contentInset
contentInset.bottom = bottom
conversationCollectionView.contentInset = contentInset
}
private func setConversaitonCollectionViewOriginalContentInset() {
setConversaitonCollectionViewOriginalContentInsetBottom(messageToolbar.intrinsicContentSize().height)
}
// MARK: Keyboard
@@ -74,7 +83,9 @@ class ConversationViewController: UIViewController {
UIView.animateWithDuration(animationDuration, delay: 0, options: UIViewAnimationOptions(animationCurveValue), animations: { () -> Void in
self.messageToolbarBottomConstraint.constant = keyboardHeight
self.view.layoutIfNeeded()
}, completion: { (finished) -> Void in
}, completion: { (finished) -> Void in
self.setConversaitonCollectionViewOriginalContentInsetBottom(keyboardHeight + self.messageToolbar.intrinsicContentSize().height)
})
}
}
@@ -83,10 +94,13 @@ class ConversationViewController: UIViewController {
if let userInfo = notification.userInfo {
let animationDuration: NSTimeInterval = (userInfo[UIKeyboardAnimationDurationUserInfoKey] as! NSNumber).doubleValue
self.setConversaitonCollectionViewOriginalContentInset()
UIView.animateWithDuration(animationDuration, delay: 0, options: .BeginFromCurrentState, animations: { () -> Void in
self.messageToolbarBottomConstraint.constant = 0
self.view.layoutIfNeeded()
}, completion: { (finished) -> Void in
}, completion: { (finished) -> Void in
})
}
}
@@ -126,4 +140,8 @@ extension ConversationViewController: UICollectionViewDataSource, UICollectionVi
return CGSizeMake(collectionViewWidth, 60)
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
view.endEditing(true)
}
}