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Fix notification observer bug when change the keyboard style

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zhongwuzw
2017-12-08 10:35:37 +08:00
parent a166b11635
commit 837032a1bd
1 changed files with 4 additions and 2 deletions
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Sources/Controllers/MessagesViewController.swift
+4 -2
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@@ -276,19 +276,21 @@ fileprivate extension MessagesViewController {
func addKeyboardObservers() {
NotificationCenter.default.addObserver(self, selector: #selector(handleKeyboardDidChangeState), name: .UIKeyboardWillChangeFrame, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(handleTextViewDidBeginEditing), name: .UITextViewTextDidBeginEditing, object: messageInputBar.inputTextView)
NotificationCenter.default.addObserver(self, selector: #selector(handleTextViewDidBeginEditing), name: .UITextViewTextDidBeginEditing, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(adjustScrollViewInset), name: .UIDeviceOrientationDidChange, object: nil)
}
func removeKeyboardObservers() {
NotificationCenter.default.removeObserver(self, name: .UIKeyboardWillChangeFrame, object: nil)
NotificationCenter.default.removeObserver(self, name: .UITextViewTextDidBeginEditing, object: messageInputBar.inputTextView)
NotificationCenter.default.removeObserver(self, name: .UITextViewTextDidBeginEditing, object: nil)
NotificationCenter.default.removeObserver(self, name: .UIDeviceOrientationDidChange, object: nil)
}
@objc
func handleTextViewDidBeginEditing(_ notification: Notification) {
if scrollsToBottomOnKeybordBeginsEditing {
guard let inputTextView = notification.object as? InputTextView, inputTextView === messageInputBar.inputTextView else { return }
messagesCollectionView.scrollToBottom(animated: true)
}
}