KeyboardMan
We may need keyboard infomation from keyboard notifications to do animation. However, the approach is complicated and easy to make mistakes. Even more, we need to handle the bug of system fire keyboard notifications.
But KeyboardMan will make it simple & easy.
另有中文介绍。
Requirements
Swift 4.2, iOS 8.0
(Swift 3, use version 1.1.0)
Example
import KeyboardMan 
Do animation with keyboard appear/disappear:
let keyboardMan = KeyboardMan()
keyboardMan.animateWhenKeyboardAppear = { [weak self] appearPostIndex, keyboardHeight, keyboardHeightIncrement in
    print("appear \(appearPostIndex), \(keyboardHeight), \(keyboardHeightIncrement)\n")
    if let self = self {
        self.tableView.contentOffset.y += keyboardHeightIncrement
        self.tableView.contentInset.bottom = keyboardHeight + self.toolBar.frame.height
        self.toolBarBottomConstraint.constant = keyboardHeight
        self.view.layoutIfNeeded()
    }
}
keyboardMan.animateWhenKeyboardDisappear = { [weak self] keyboardHeight in
    print("disappear \(keyboardHeight)\n")
    if let self = self {
        self.tableView.contentOffset.y -= keyboardHeight
        self.tableView.contentInset.bottom = self.toolBar.frame.height
        self.toolBarBottomConstraint.constant = 0
        self.view.layoutIfNeeded()
    }
} 
For more specific information, you can use keyboardInfo that KeyboardMan post:
keyboardMan.postKeyboardInfo = { [weak self] keyboardMan, keyboardInfo in
    // TODO
} 
Check the demo for more information.
Installation
Feel free to drag KeyboardMan.swift to your iOS Project. But it's recommended to use Carthage (or CocoaPods).
Carthage
github "nixzhu/KeyboardMan"
 
CocoaPods
pod 'KeyboardMan' 
Contact
NIX @nixzhu
License
KeyboardMan is available under the MIT license. See the LICENSE file for more info.
