├── .gitignore
├── Demo
    ├── AutoMultipleLineLabel.xcodeproj
    │   ├── project.pbxproj
    │   └── project.xcworkspace
    │   │   └── contents.xcworkspacedata
    ├── AutoMultipleLineLabel
    │   ├── AppDelegate.swift
    │   ├── Base.lproj
    │   │   ├── LaunchScreen.xib
    │   │   └── Main.storyboard
    │   ├── Images.xcassets
    │   │   └── AppIcon.appiconset
    │   │   │   └── Contents.json
    │   ├── Info.plist
    │   ├── ViewController.swift
    │   └── ZHAutoLinesLabel.swift
    └── AutoMultipleLineLabelTests
    │   ├── AutoMultipleLineLabelTests.swift
    │   └── Info.plist
├── LICENSE
├── Pic
    ├── 1.png
    ├── 2.png
    ├── 3.png
    └── Pre1.png
├── README.md
└── ZHAutoLinesLabel.swift


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Xcode
 2 | #
 3 | build/
 4 | *.pbxuser
 5 | !default.pbxuser
 6 | *.mode1v3
 7 | !default.mode1v3
 8 | *.mode2v3
 9 | !default.mode2v3
10 | *.perspectivev3
11 | !default.perspectivev3
12 | xcuserdata
13 | *.xccheckout
14 | *.moved-aside
15 | DerivedData
16 | *.hmap
17 | *.ipa
18 | *.xcuserstate
19 | 
20 | # CocoaPods
21 | #
22 | # We recommend against adding the Pods directory to your .gitignore. However
23 | # you should judge for yourself, the pros and cons are mentioned at:
24 | # http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control
25 | #
26 | # Pods/
27 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
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416 | 			defaultConfigurationName = Release;
417 | 		};
418 | 		FAD521F41A4344020068356B /* Build configuration list for PBXNativeTarget "AutoMultipleLineLabelTests" */ = {
419 | 			isa = XCConfigurationList;
420 | 			buildConfigurations = (
421 | 				FAD521F51A4344020068356B /* Debug */,
422 | 				FAD521F61A4344020068356B /* Release */,
423 | 			);
424 | 			defaultConfigurationIsVisible = 0;
425 | 			defaultConfigurationName = Release;
426 | 		};
427 | /* End XCConfigurationList section */
428 | 	};
429 | 	rootObject = FAD521CA1A4344020068356B /* Project object */;
430 | }
431 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:AutoMultipleLineLabel.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  AutoMultipleLineLabel
 4 | //
 5 | //  Created by Honghao Zhang on 2014-12-18.
 6 | //  Copyright (c) 2014 HonghaoZ. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
18 |         // Override point for customization after application launch.
19 |         return true
20 |     }
21 | 
22 |     func applicationWillResignActive(application: UIApplication) {
23 |         // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
24 |         // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
25 |     }
26 | 
27 |     func applicationDidEnterBackground(application: UIApplication) {
28 |         // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
29 |         // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 |     }
31 | 
32 |     func applicationWillEnterForeground(application: UIApplication) {
33 |         // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
34 |     }
35 | 
36 |     func applicationDidBecomeActive(application: UIApplication) {
37 |         // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
38 |     }
39 | 
40 |     func applicationWillTerminate(application: UIApplication) {
41 |         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 |     }
43 | 
44 | 
45 | }
46 | 
47 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/Base.lproj/LaunchScreen.xib:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="6214" systemVersion="14A314h" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6207"/>
 5 |         <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
 6 |     </dependencies>
 7 |     <objects>
 8 |         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
 9 |         <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
10 |         <view contentMode="scaleToFill" id="iN0-l3-epB">
11 |             <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
12 |             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
13 |             <subviews>
14 |                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2014 HonghaoZ. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
15 |                     <rect key="frame" x="20" y="439" width="441" height="21"/>
16 |                     <fontDescription key="fontDescription" type="system" pointSize="17"/>
17 |                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
18 |                     <nil key="highlightedColor"/>
19 |                 </label>
20 |                 <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="AutoMultipleLineLabel" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
21 |                     <rect key="frame" x="20" y="140" width="441" height="43"/>
22 |                     <fontDescription key="fontDescription" type="boldSystem" pointSize="36"/>
23 |                     <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
24 |                     <nil key="highlightedColor"/>
25 |                 </label>
26 |             </subviews>
27 |             <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
28 |             <constraints>
29 |                 <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
30 |                 <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
31 |                 <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
32 |                 <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
33 |                 <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
34 |                 <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
35 |             </constraints>
36 |             <nil key="simulatedStatusBarMetrics"/>
37 |             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
38 |             <point key="canvasLocation" x="548" y="455"/>
39 |         </view>
40 |     </objects>
41 | </document>
42 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6254" systemVersion="14B25" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
 3 |     <dependencies>
 4 |         <deployment identifier="iOS"/>
 5 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6247"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="tne-QT-ifu">
10 |             <objects>
11 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="AutoMultipleLineLabel" customModuleProvider="target" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
17 |                         <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <subviews>
20 |                             <toolbar opaque="NO" clearsContextBeforeDrawing="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="JRa-th-TA4">
21 |                                 <rect key="frame" x="0.0" y="524" width="320" height="44"/>
22 |                                 <items>
23 |                                     <barButtonItem style="plain" systemItem="flexibleSpace" id="zQk-oD-9nH"/>
24 |                                     <barButtonItem title="Change LabelWidth" id="9rD-Yf-7BI">
25 |                                         <connections>
26 |                                             <action selector="changeWidth:" destination="BYZ-38-t0r" id="DvS-C4-cAU"/>
27 |                                         </connections>
28 |                                     </barButtonItem>
29 |                                     <barButtonItem style="plain" systemItem="flexibleSpace" id="qb0-Xf-7nZ"/>
30 |                                     <barButtonItem title="Change ContentInset" id="8r6-bR-pUp">
31 |                                         <connections>
32 |                                             <action selector="changeContentInset:" destination="BYZ-38-t0r" id="RhU-wp-j4x"/>
33 |                                         </connections>
34 |                                     </barButtonItem>
35 |                                     <barButtonItem style="plain" systemItem="flexibleSpace" id="qY2-nq-dCt"/>
36 |                                 </items>
37 |                             </toolbar>
38 |                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="1000" verticalHuggingPriority="1000" horizontalCompressionResistancePriority="1000" verticalCompressionResistancePriority="1000" text="A very very very long storyA very very very long storyA very very very long story" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" preferredMaxLayoutWidth="100" translatesAutoresizingMaskIntoConstraints="NO" id="5lb-cv-7q0" customClass="ZHAutoLinesLabel" customModule="AutoMultipleLineLabel" customModuleProvider="target">
39 |                                 <rect key="frame" x="85" y="203" width="150" height="163"/>
40 |                                 <color key="backgroundColor" red="0.93725490199999995" green="0.93725490199999995" blue="0.95686274510000002" alpha="1" colorSpace="calibratedRGB"/>
41 |                                 <constraints>
42 |                                     <constraint firstAttribute="width" constant="150" id="q0T-4m-eBo"/>
43 |                                 </constraints>
44 |                                 <fontDescription key="fontDescription" type="system" pointSize="17"/>
45 |                                 <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
46 |                                 <nil key="highlightedColor"/>
47 |                             </label>
48 |                         </subviews>
49 |                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
50 |                         <constraints>
51 |                             <constraint firstAttribute="centerX" secondItem="5lb-cv-7q0" secondAttribute="centerX" id="FAP-es-dsI"/>
52 |                             <constraint firstAttribute="trailing" secondItem="JRa-th-TA4" secondAttribute="trailing" id="HBM-A5-2SU"/>
53 |                             <constraint firstAttribute="centerY" secondItem="5lb-cv-7q0" secondAttribute="centerY" id="V4D-Be-xrM"/>
54 |                             <constraint firstAttribute="bottom" secondItem="JRa-th-TA4" secondAttribute="bottom" id="fKp-cV-cvb"/>
55 |                             <constraint firstItem="JRa-th-TA4" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="hbQ-CE-JCY"/>
56 |                         </constraints>
57 |                     </view>
58 |                     <simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina4"/>
59 |                     <connections>
60 |                         <outlet property="constraintLabelWidth" destination="q0T-4m-eBo" id="tbW-ez-k3a"/>
61 |                         <outlet property="label" destination="5lb-cv-7q0" id="GdX-Vq-RHc"/>
62 |                     </connections>
63 |                 </viewController>
64 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
65 |             </objects>
66 |         </scene>
67 |     </scenes>
68 | </document>
69 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/Images.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "29x29",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "29x29",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "40x40",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "40x40",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "60x60",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "60x60",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "ipad",
35 |       "size" : "29x29",
36 |       "scale" : "1x"
37 |     },
38 |     {
39 |       "idiom" : "ipad",
40 |       "size" : "29x29",
41 |       "scale" : "2x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "40x40",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "40x40",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "76x76",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "76x76",
61 |       "scale" : "2x"
62 |     }
63 |   ],
64 |   "info" : {
65 |     "version" : 1,
66 |     "author" : "xcode"
67 |   }
68 | }


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>com.honghaoz.$(PRODUCT_NAME:rfc1034identifier)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleSignature</key>
20 | 	<string>????</string>
21 | 	<key>CFBundleVersion</key>
22 | 	<string>1</string>
23 | 	<key>LSRequiresIPhoneOS</key>
24 | 	<true/>
25 | 	<key>UILaunchStoryboardName</key>
26 | 	<string>LaunchScreen</string>
27 | 	<key>UIMainStoryboardFile</key>
28 | 	<string>Main</string>
29 | 	<key>UIRequiredDeviceCapabilities</key>
30 | 	<array>
31 | 		<string>armv7</string>
32 | 	</array>
33 | 	<key>UISupportedInterfaceOrientations</key>
34 | 	<array>
35 | 		<string>UIInterfaceOrientationPortrait</string>
36 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
37 | 		<string>UIInterfaceOrientationLandscapeRight</string>
38 | 	</array>
39 | 	<key>UISupportedInterfaceOrientations~ipad</key>
40 | 	<array>
41 | 		<string>UIInterfaceOrientationPortrait</string>
42 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
43 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
44 | 		<string>UIInterfaceOrientationLandscapeRight</string>
45 | 	</array>
46 | </dict>
47 | </plist>
48 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/ViewController.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.swift
 3 | //  AutoMultipleLineLabel
 4 | //
 5 | //  Created by Honghao Zhang on 2014-12-18.
 6 | //  Copyright (c) 2014 HonghaoZ. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ViewController: UIViewController {
12 | 
13 |     @IBOutlet weak var label: ZHAutoLinesLabel!
14 |     @IBOutlet weak var constraintLabelWidth: NSLayoutConstraint!
15 |     
16 |     override func viewDidLoad() {
17 |         super.viewDidLoad()
18 |         println("viewDidLoad")
19 |         label.contentInset = UIEdgeInsetsMake(10, 20, 10, 20)
20 |     }
21 | 
22 |     @IBAction func changeWidth(sender: AnyObject) {
23 |         constraintLabelWidth.constant = random(Int(UIScreen.mainScreen().bounds.width - 10 - label.contentInset.left - label.contentInset.right)) + label.contentInset.left + label.contentInset.right
24 |         self.view.layoutIfNeeded()
25 |     }
26 |     
27 |     @IBAction func changeContentInset(sender: AnyObject) {
28 |         label.contentInset = UIEdgeInsetsMake(random(50), random(50), random(50), random(50))
29 |     }
30 | }
31 | 
32 | func random(range: Int) -> CGFloat {
33 |     return CGFloat(arc4random_uniform(UInt32(range)))
34 | }
35 | 
36 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabel/ZHAutoLinesLabel.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ZHAutoLinesLabel.swift
 3 | //  ZHAutoLinesLabel
 4 | //
 5 | //  Created by Honghao Zhang on 2014-12-18.
 6 | //  Copyright (c) 2014 HonghaoZ. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ZHAutoLinesLabel: UILabel {
12 |     var contentInset: UIEdgeInsets = UIEdgeInsetsZero {
13 |         didSet {
14 |             // Force label to update
15 |             let originalText = self.text
16 |             self.text = ""
17 |             self.text = originalText
18 |             self.superview?.setNeedsLayout()
19 |         }
20 |     }
21 |     
22 |     convenience override init() {
23 |         self.init(frame: CGRectZero)
24 |     }
25 |     
26 |     override init(frame: CGRect) {
27 |         super.init(frame: frame)
28 |         setup()
29 |     }
30 | 
31 |     required init(coder aDecoder: NSCoder) {
32 |         super.init(coder: aDecoder)
33 |         setup()
34 |     }
35 |     
36 |     private func setup() {
37 |         // Content is never compressed
38 |         self.setContentCompressionResistancePriority(1000, forAxis: .Horizontal)
39 |         self.setContentCompressionResistancePriority(1000, forAxis: .Vertical)
40 |     }
41 |     
42 |     override func layoutSubviews() {
43 |         super.layoutSubviews()
44 |         let targetWidth = CGRectGetWidth(self.bounds)
45 |         // Once label's widht is changed, update preferredMaxLayoutWidth, this will lead recall textRectForBounds
46 |         if self.preferredMaxLayoutWidth != targetWidth {
47 |             self.preferredMaxLayoutWidth = targetWidth
48 |             self.superview?.setNeedsLayout()
49 |         }
50 |         self.superview?.setNeedsLayout()
51 |     }
52 |     
53 |     override func drawTextInRect(rect: CGRect) {
54 |         // Rect has been veritcally expanded in textRectForBounds
55 |         super.drawTextInRect(UIEdgeInsetsInsetRect(rect, contentInset))
56 |     }
57 |     
58 |     override func textRectForBounds(bounds: CGRect, limitedToNumberOfLines numberOfLines: Int) -> CGRect {
59 |         // Use a shrinked rect to calculate new rect, this will lead to a higher rectangle to draw
60 |         // The width is same as preferredMaxLayoutWidth
61 |         // Reference: http://stackoverflow.com/questions/21167226/resizing-a-uilabel-to-accomodate-insets
62 |         
63 |         var rect = super.textRectForBounds(UIEdgeInsetsInsetRect(bounds, contentInset), limitedToNumberOfLines: numberOfLines)
64 |         // Move rect to origin
65 |         rect.origin.x    -= contentInset.left;
66 |         rect.origin.y    -= contentInset.top;
67 |         rect.size.width  += (contentInset.left + contentInset.right);
68 |         rect.size.height += (contentInset.top + contentInset.bottom);
69 |         return rect
70 |     }
71 | }
72 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabelTests/AutoMultipleLineLabelTests.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AutoMultipleLineLabelTests.swift
 3 | //  AutoMultipleLineLabelTests
 4 | //
 5 | //  Created by Honghao Zhang on 2014-12-18.
 6 | //  Copyright (c) 2014 HonghaoZ. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | import XCTest
11 | 
12 | class AutoMultipleLineLabelTests: XCTestCase {
13 |     
14 |     override func setUp() {
15 |         super.setUp()
16 |         // Put setup code here. This method is called before the invocation of each test method in the class.
17 |     }
18 |     
19 |     override func tearDown() {
20 |         // Put teardown code here. This method is called after the invocation of each test method in the class.
21 |         super.tearDown()
22 |     }
23 |     
24 |     func testExample() {
25 |         // This is an example of a functional test case.
26 |         XCTAssert(true, "Pass")
27 |     }
28 |     
29 |     func testPerformanceExample() {
30 |         // This is an example of a performance test case.
31 |         self.measureBlock() {
32 |             // Put the code you want to measure the time of here.
33 |         }
34 |     }
35 |     
36 | }
37 | 


--------------------------------------------------------------------------------
/Demo/AutoMultipleLineLabelTests/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>com.honghaoz.$(PRODUCT_NAME:rfc1034identifier)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>BNDL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleSignature</key>
20 | 	<string>????</string>
21 | 	<key>CFBundleVersion</key>
22 | 	<string>1</string>
23 | </dict>
24 | </plist>
25 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2014 Honghao Zhang 张宏昊
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 
23 | 


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/Pic/1.png:
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https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/8f17a7bf5e5dffea370dce81fb6c6f73b0097371/Pic/1.png


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/Pic/2.png:
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https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/8f17a7bf5e5dffea370dce81fb6c6f73b0097371/Pic/2.png


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/Pic/3.png:
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https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/8f17a7bf5e5dffea370dce81fb6c6f73b0097371/Pic/3.png


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/Pic/Pre1.png:
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https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/8f17a7bf5e5dffea370dce81fb6c6f73b0097371/Pic/Pre1.png


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/README.md:
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 1 | # ZHAutoLinesLabel
 2 | 
 3 | ZHAutoLinesLabel is a subclass of UILabel, support contentInset and automatic multiple lines
 4 | 
 5 | ![](https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/master/Pic/Pre1.png)
 6 | 
 7 | # Why I create this label
 8 | 
 9 | ### For automatic preferredMaxLayoutWidth
10 | I love Autolayout, for label, I offen do this:
11 | ```
12 |   self.setContentCompressionResistancePriority(1000, forAxis: .Horizontal)
13 |   self.setContentCompressionResistancePriority(1000, forAxis: .Vertical)
14 |   self.setContentHuggingPriority(1000, forAxis: .Horizontal)
15 |   self.setContentHuggingPriority(1000, forAxis: .Vertical)
16 | ```
17 | 
18 | If we set `numberOfLines = 0`, label will automatically resize it approtiately.
19 | 
20 | I love Interface Builder, I offen set these four priorities in IB like this
21 | 
22 | ![](https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/master/Pic/1.png)
23 | 
24 | However, there's a property `preferredMaxLayoutWidth`, in IB, it's
25 | 
26 | ![](https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/master/Pic/2.png)
27 | 
28 | This can be automatic only for iOS8, which means the value will be equal to view's width. 
29 | 
30 | If our project supports for iOS7 or iOS6, we will have a warning: 
31 | ```
32 | Main.storyboard: warning: Attribute Unavailable: Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
33 | ```
34 | we have to give it an explicit value in IB to get rid of it. If we want it's automatic, we have to link this label, then update `preferredMaxLayoutWidth` in code. This is trivial.
35 | 
36 | To let iOS7 have same behavior like iOS8 and get rid of this kind of warning, I created this label.
37 | 
38 | What you need to do is always set `preferredMaxLayoutWidth` explicitly and it will work automatically.
39 | 
40 | ![](https://raw.githubusercontent.com/honghaoz/ZHAutoLinesLabel/master/Pic/3.png)
41 | 
42 | (Better to choose same width value as label, this will give you correct layout in IB)
43 | 
44 | ### For contentInset just like UITextView
45 | 
46 | Sometimes, we want label to have a background and margin around it. One way is to creat a container view and add a lable on that, this is bad in IB or code.
47 | 
48 | ZHAutoLinesLabel has a new property `contentInset: UIEdgeInsets`, same with UITextView, also, it works with Autolayout.
49 | 
50 | # The MIT License (MIT)
51 | The MIT License (MIT)
52 | Copyright (c) 2014 Honghao Zhang
53 | 
54 | Permission is hereby granted, free of charge, to any person obtaining a copy
55 | of this software and associated documentation files (the "Software"), to deal
56 | in the Software without restriction, including without limitation the rights
57 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
58 | copies of the Software, and to permit persons to whom the Software is
59 | furnished to do so, subject to the following conditions:
60 | 
61 | The above copyright notice and this permission notice shall be included in all
62 | copies or substantial portions of the Software.
63 | 
64 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
65 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
66 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
67 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
68 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
69 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
70 | SOFTWARE.
71 | 


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/ZHAutoLinesLabel.swift:
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 1 | //
 2 | //  ZHAutoLinesLabel.swift
 3 | //  ZHAutoLinesLabel
 4 | //
 5 | //  Created by Honghao Zhang on 2014-12-18.
 6 | //  Copyright (c) 2014 HonghaoZ. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ZHAutoLinesLabel: UILabel {
12 |     var contentInset: UIEdgeInsets = UIEdgeInsetsZero {
13 |         didSet {
14 |             // Force label to update
15 |             let originalText = self.text
16 |             self.text = ""
17 |             self.text = originalText
18 |             self.superview?.setNeedsLayout()
19 |         }
20 |     }
21 |     
22 |     override init(frame: CGRect) {
23 |         super.init(frame: frame)
24 |         setup()
25 |     }
26 | 
27 |     required init(coder aDecoder: NSCoder) {
28 |         super.init(coder: aDecoder)
29 |         setup()
30 |     }
31 |     
32 |     private func setup() {
33 |         // Content is never compressed
34 |         self.setContentCompressionResistancePriority(1000, forAxis: .Horizontal)
35 |         self.setContentCompressionResistancePriority(1000, forAxis: .Vertical)
36 |     }
37 |     
38 |     override func layoutSubviews() {
39 |         super.layoutSubviews()
40 |         let targetWidth = CGRectGetWidth(self.bounds)
41 |         // Once label's widht is changed, update preferredMaxLayoutWidth, this will lead recall textRectForBounds
42 |         if self.preferredMaxLayoutWidth != targetWidth {
43 |             self.preferredMaxLayoutWidth = targetWidth
44 |             self.superview?.setNeedsLayout()
45 |         }
46 |         self.superview?.setNeedsLayout()
47 |     }
48 |     
49 |     override func drawTextInRect(rect: CGRect) {
50 |         // Rect has been veritcally expanded in textRectForBounds
51 |         super.drawTextInRect(UIEdgeInsetsInsetRect(rect, contentInset))
52 |     }
53 |     
54 |     override func textRectForBounds(bounds: CGRect, limitedToNumberOfLines numberOfLines: Int) -> CGRect {
55 |         // Use a shrinked rect to calculate new rect, this will lead to a higher rectangle to draw
56 |         // The width is same as preferredMaxLayoutWidth
57 |         // Reference: http://stackoverflow.com/questions/21167226/resizing-a-uilabel-to-accomodate-insets
58 |         
59 |         var rect = super.textRectForBounds(UIEdgeInsetsInsetRect(bounds, contentInset), limitedToNumberOfLines: numberOfLines)
60 |         // Move rect to origin
61 |         rect.origin.x    -= contentInset.left;
62 |         rect.origin.y    -= contentInset.top;
63 |         rect.size.width  += (contentInset.left + contentInset.right);
64 |         rect.size.height += (contentInset.top + contentInset.bottom);
65 |         return rect
66 |     }
67 | }
68 | 


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