Swift 2.0 键盘遮挡自定义View 继承View即可实现
//
//XDView.swift
//Tiger
//
//Created by admin on 15/12/3.
//Copyright © 2015年xidaMM. All rights reserved.
//
importUIKit
classXDView:UIView{
varkoffset:CGFloat!
varisDown:Bool? =nil
overrideinit(frame:CGRect) {
super.init(frame: frame)
setUp()
print("1")
}
requiredinit?(coder aDecoder:NSCoder) {
super.init(coder: aDecoder)
//setUp()
print("2")
}
overridefuncawakeFromNib() {
super.awakeFromNib()
setUp()
print("3")
}
funcsetUp(){
koffset=0
NSNotificationCenter.defaultCenter().addObserver(self, selector:"keyboardWillShow:", name:UIKeyboardWillShowNotification, object:nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector:"keyboardWillHide:", name:UIKeyboardWillHideNotification, object:nil)
//
}
//MARK:键盘显示和隐藏
funckeyboardWillShow(notificate:NSNotification) {
ifisDown==false{
return
}
//获取键盘高度，在不同设备上，以及中英文下是不同的
letkeyHeight = notificate.userInfo![UIKeyboardFrameEndUserInfoKey]?.CGRectValue.origin.y
letfirstResponder =self.findFirstResponceView(self)as?UITextField
guardfirstResponder !=nilelse{
return
}
firstResponder!.delegate=self
//根据当前的第一响应者的frame获取相对于self.view的frame
letrectWithView = firstResponder?.convertRect((firstResponder?.bounds)!, toView:self)
//计算出键盘顶端到inputTextView panel底端的距离(加上自定义的缓冲距离INTERVAL_KEYBOARD)
print(rectWithView)
koffset= keyHeight! - (rectWithView!.origin.y
+ (firstResponder?.frame.size.height)!)
//取得键盘的动画时间，这样可以在视图上移的时候更连贯
letduration = notificate.userInfo![UIKeyboardAnimationDurationUserInfoKey]?.doubleValue
ifkoffset<0{
UIView.animateWithDuration(duration!, animations: { () ->Voidin
self.frame=CGRectMake(0,self.frame.origin.y+self.koffset,self.frame.size.width,self.frame.size.height)
self.isDown=false
})
}
}
funcfindFirstResponceView(myView:UIView) ->UIView? {
ifmyView.isFirstResponder() {
returnmyView
}
forsubViewinmyView.subviews{
letresult =self.findFirstResponceView(subView)
if(result !=nil) {
returnresult
}
}
returnnil
}
funckeyboardWillHide(notificate:NSNotification) {
//取得键盘的动画时间，这样可以在视图上移的时候更连贯
letduration = notificate.userInfo![UIKeyboardAnimationDurationUserInfoKey]?.doubleValue
ifkoffset<0{
UIView.animateWithDuration(duration!, animations: { () ->Voidin
self.frame=CGRectMake(0,self.frame.origin.y-self.koffset,self.frame.size.width,self.frame.size.height)
self.isDown=true
})
}
}
deinit{
NSNotificationCenter.defaultCenter().removeObserver(self)
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
override func drawRect(rect: CGRect) {
// Drawing code
}
*/
}
