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complete Project 25 - LimitCharacters
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@cjiong
cjiong committed Jun 17, 2016
1 parent a9d7ac8 commit 6a67a88
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Showing 5 changed files with 115 additions and 17 deletions.
5 changes: 5 additions & 0 deletions ...haracters.xcodeproj/xcuserdata/chenjiong.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
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<?xml version="1.0" encoding="UTF-8"?>
<Bucket
type = "1"
version = "2.0">
</Bucket>
5 changes: 5 additions & 0 deletions ...tCharacters/Project 25 - LimitCharacters/Assets.xcassets/AppIcon.appiconset/Contents.json
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Expand Up @@ -59,6 +59,11 @@
"idiom" : "ipad",
"size" : "76x76",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "83.5x83.5",
"scale" : "2x"
}
],
"info" : {
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38 changes: 24 additions & 14 deletions Project 25 - LimitCharacters/Project 25 - LimitCharacters/Base.lproj/Main.storyboard
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Expand Up @@ -14,7 +14,7 @@
<viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
<viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
</layoutGuides>
<view key="view" alpha="0.69999999999999996" contentMode="scaleToFill" id="8bC-Xf-vdC">
<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
Expand All @@ -24,15 +24,18 @@
<color key="titleColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
</state>
</button>
<textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="6MX-hA-blG">
<textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="6MX-hA-blG">
<rect key="frame" x="-4" y="50" width="379" height="229"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
<color key="backgroundColor" cocoaTouchSystemColor="lightTextColor"/>
<constraints>
<constraint firstAttribute="height" constant="229" id="17f-dM-Bvq"/>
</constraints>
<string key="text">Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.</string>
<fontDescription key="fontDescription" type="system" pointSize="14"/>
<textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
<fontDescription key="fontDescription" name="AvenirNext-Regular" family="Avenir Next" pointSize="18"/>
<textInputTraits key="textInputTraits" autocapitalizationType="sentences" returnKeyType="done"/>
<connections>
<outlet property="delegate" destination="BYZ-38-t0r" id="83w-rL-tcr"/>
</connections>
</textView>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="AYy-xc-XXy">
<rect key="frame" x="20" y="20" width="30" height="30"/>
Expand All @@ -49,27 +52,28 @@
<constraint firstAttribute="width" constant="77" id="54R-1p-SPZ"/>
</constraints>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
<color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
<nil key="highlightedColor"/>
</label>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="a6t-gV-i45">
<rect key="frame" x="14" y="9" width="60" height="30"/>
<button opaque="NO" alpha="0.40000000000000002" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="a6t-gV-i45">
<rect key="frame" x="14" y="9" width="77" height="30"/>
<color key="backgroundColor" white="0.66666666666666663" alpha="1" colorSpace="calibratedWhite"/>
<constraints>
<constraint firstAttribute="height" constant="30" id="rbx-fS-O4s"/>
<constraint firstAttribute="width" constant="77" id="XjV-CD-B3q"/>
</constraints>
<state key="normal" title="显示位置">
<color key="titleColor" cocoaTouchSystemColor="scrollViewTexturedBackgroundColor"/>
<color key="titleColor" white="0.0" alpha="1" colorSpace="calibratedWhite"/>
<color key="titleShadowColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
</state>
</button>
</subviews>
<color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
<constraints>
<constraint firstItem="yRq-Ac-2QV" firstAttribute="trailing" secondItem="npK-UO-vid" secondAttribute="trailingMargin" id="0kp-YK-SXd"/>
<constraint firstItem="a6t-gV-i45" firstAttribute="top" secondItem="npK-UO-vid" secondAttribute="top" constant="9" id="C4m-Eq-Tcc"/>
<constraint firstItem="a6t-gV-i45" firstAttribute="leading" secondItem="npK-UO-vid" secondAttribute="leading" constant="14" id="Ht6-Xf-NaI"/>
<constraint firstItem="yRq-Ac-2QV" firstAttribute="bottom" secondItem="a6t-gV-i45" secondAttribute="bottom" id="Ibl-JK-SOK"/>
<constraint firstItem="a6t-gV-i45" firstAttribute="bottom" secondItem="yRq-Ac-2QV" secondAttribute="bottom" id="IrY-Yi-9Rp"/>
<constraint firstItem="a6t-gV-i45" firstAttribute="top" secondItem="npK-UO-vid" secondAttribute="top" constant="9" id="LQG-9l-Cri"/>
<constraint firstItem="yRq-Ac-2QV" firstAttribute="centerY" secondItem="npK-UO-vid" secondAttribute="centerY" id="PIn-iz-lxH"/>
<constraint firstItem="a6t-gV-i45" firstAttribute="leading" secondItem="npK-UO-vid" secondAttribute="leading" constant="14" id="rjy-vM-Pad"/>
</constraints>
</view>
</subviews>
Expand All @@ -89,6 +93,12 @@
</constraints>
</view>
<simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina47"/>
<connections>
<outlet property="bottomView" destination="npK-UO-vid" id="VCH-gw-8lJ"/>
<outlet property="countLabel" destination="yRq-Ac-2QV" id="nY4-en-kAg"/>
<outlet property="locationButton" destination="a6t-gV-i45" id="78y-1h-PfQ"/>
<outlet property="textView" destination="6MX-hA-blG" id="gfD-sD-j1M"/>
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
</objects>
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81 changes: 78 additions & 3 deletions Project 25 - LimitCharacters/Project 25 - LimitCharacters/ViewController.swift
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Expand Up @@ -8,18 +8,93 @@

import UIKit

class ViewController: UIViewController {
class ViewController: UIViewController, UITextFieldDelegate {

@IBOutlet weak var textView: UITextView!
@IBOutlet weak var countLabel: UILabel!
@IBOutlet weak var bottomView: UIView!
@IBOutlet weak var locationButton: UIButton!

override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.

locationButton.layer.cornerRadius = 15

textView.layer.borderColor = UIColor.grayColor().CGColor
textView.layer.borderWidth = 0.5

NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillHide:", name: UIKeyboardWillHideNotification, object: nil)

}

override func preferredStatusBarStyle() -> UIStatusBarStyle {
return UIStatusBarStyle.LightContent
}

//MARK:
func textView(textView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
let textViewString = textView.text
countLabel.text = "\(140 - textViewString.characters.count)"

if range.length > 140 {
return false
}

let newLength = textViewString.characters.count + range.length

return newLength < 140
}

func keyBoardWillShow(note: NSNotification) {

let userInfo = note.userInfo
let keyBoardBounds = (userInfo![UIKeyboardFrameEndUserInfoKey] as! NSValue).CGRectValue()
let durantion = (userInfo![UIKeyboardAnimationDurationUserInfoKey] as! NSNumber).doubleValue
let Y = keyBoardBounds.size.height

let animation: (() -> Void) = {
self.bottomView.transform = CGAffineTransformMakeTranslation(0, -Y)
}

if durantion > 0 {
let options = UIViewAnimationOptions(rawValue: UInt((userInfo![UIKeyboardAnimationCurveUserInfoKey] as! NSNumber).integerValue << 16))

UIView.animateWithDuration(durantion, delay: 0, options: options, animations: animation, completion: nil)
} else {

animation()
}

}

func keyBoardWillHide(note: NSNotification) {

let userInfo = note.userInfo
let durantion = (userInfo![UIKeyboardAnimationDurationUserInfoKey] as! NSNumber).doubleValue

let animation: (() -> Void) = {
self.bottomView.transform = CGAffineTransformIdentity
}

if durantion > 0 {
let options = UIViewAnimationOptions(rawValue: UInt((userInfo![UIKeyboardAnimationCurveUserInfoKey] as! NSNumber).integerValue << 16))

UIView.animateWithDuration(durantion, delay: 0, options: options, animations: animation, completion: nil)

} else {
animation()
}
}

override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
view.endEditing(true)
}


}

3 changes: 3 additions & 0 deletions Project 25 - LimitCharacters/README.md
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#LimitCharacters

![](https://github.com/cjiong/LearnSwift/raw/master/Project 25 - LimitCharacters/LimitCharacters.gif)

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