├── .gitignore
├── README.md
├── ScreenShot.gif
├── ZTLetterIndex
    ├── ZTLetterIndex.h
    └── ZTLetterIndex.m
└── ZTLetterIndexDemo
    ├── ZTLetterIndexDemo.xcodeproj
        ├── project.pbxproj
        └── project.xcworkspace
        │   └── contents.xcworkspacedata
    ├── ZTLetterIndexDemo
        ├── AppDelegate.h
        ├── AppDelegate.m
        ├── Assets.xcassets
        │   └── AppIcon.appiconset
        │   │   └── Contents.json
        ├── Base.lproj
        │   ├── LaunchScreen.storyboard
        │   └── Main.storyboard
        ├── Info.plist
        ├── ViewController.h
        ├── ViewController.m
        └── main.m
    ├── ZTLetterIndexDemoTests
        ├── Info.plist
        └── ZTLetterIndexDemoTests.m
    └── ZTLetterIndexDemoUITests
        ├── Info.plist
        └── ZTLetterIndexDemoUITests.m


/.gitignore:
--------------------------------------------------------------------------------
 1 | # Xcode
 2 | #
 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
 4 | 
 5 | ## Build generated
 6 | build/
 7 | DerivedData/
 8 | 
 9 | ## Various settings
10 | *.pbxuser
11 | !default.pbxuser
12 | *.mode1v3
13 | !default.mode1v3
14 | *.mode2v3
15 | !default.mode2v3
16 | *.perspectivev3
17 | !default.perspectivev3
18 | xcuserdata/
19 | 
20 | ## Other
21 | *.moved-aside
22 | *.xcuserstate
23 | 
24 | ## Obj-C/Swift specific
25 | *.hmap
26 | *.ipa
27 | *.dSYM.zip
28 | *.dSYM
29 | 
30 | # CocoaPods
31 | #
32 | # We recommend against adding the Pods directory to your .gitignore. However
33 | # you should judge for yourself, the pros and cons are mentioned at:
34 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
35 | #
36 | # Pods/
37 | 
38 | # Carthage
39 | #
40 | # Add this line if you want to avoid checking in source code from Carthage dependencies.
41 | # Carthage/Checkouts
42 | 
43 | Carthage/Build
44 | 
45 | # fastlane
46 | #
47 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 
48 | # screenshots whenever they are needed.
49 | # For more information about the recommended setup visit:
50 | # https://github.com/fastlane/fastlane/blob/master/fastlane/docs/Gitignore.md
51 | 
52 | fastlane/report.xml
53 | fastlane/screenshots
54 | 
55 | #Code Injection
56 | #
57 | # After new code Injection tools there's a generated folder /iOSInjectionProject
58 | # https://github.com/johnno1962/injectionforxcode
59 | 
60 | iOSInjectionProject/
61 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # ZTLetterIndex
 2 | 
 3 | ![img](https://github.com/JoviZT/ZTLetterIndex/raw/master/ScreenShot.gif)  
 4 | 
 5 | ### 注意
 6 | 
 7 | @property(nonatomic, strong) NSArray *dataArray
 8 | 
 9 | **该属性要在其他属性赋值后赋值**<br><br>
10 | 
11 | 个人博客：[http://www.jianshu.com/u/5c50ecd9c410](http://www.jianshu.com/u/5c50ecd9c410)
12 | 


--------------------------------------------------------------------------------
/ScreenShot.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/JoviZT/ZTLetterIndex/027ab54ce98820060bcec58b09b564e6e3c07cb8/ScreenShot.gif


--------------------------------------------------------------------------------
/ZTLetterIndex/ZTLetterIndex.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ZTLetterIndex.h
 3 | //  ZTLetterIndexDemo
 4 | //
 5 | //  Created by 赵天福 on 2017/3/20.
 6 | //  Copyright © 2017年 赵天福. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @class ZTLetterIndex;
12 | 
13 | @protocol ZTLetterIndexDelegate <NSObject>
14 | 
15 | /**
16 |  点击回调
17 |  */
18 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView didSelectedItemWithIndex:(NSInteger)index;
19 | 
20 | /**
21 |  滑动时回调
22 |  */
23 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView isChangingItemWithIndex:(NSInteger)index;
24 | 
25 | /**
26 |  滑动开始回调
27 |  */
28 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView beginChangeItemWithIndex:(NSInteger)index;
29 | 
30 | /**
31 |  滑动结束回调
32 |  */
33 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView endChangeItemWithIndex:(NSInteger)index;
34 | 
35 | @end
36 | 
37 | @interface ZTLetterIndex : UIView
38 | 
39 | /**
40 |  必填参数,数据源,其他属性赋值后最后赋值
41 |  */
42 | @property(nonatomic, strong) NSArray *dataArray;
43 | 
44 | /**
45 |  item尺寸,默认CGSizeMake(12.0f, 16.0f)
46 |  */
47 | @property(nonatomic, assign) CGSize itemSize;
48 | 
49 | /**
50 |  滑块Size,默认宽度等于itemSize,CGSizeMake(12.0f, 40.0f)
51 |  */
52 | @property(nonatomic, assign) CGSize sliderSize;
53 | 
54 | /**
55 |  文字字体，默认PingFangSC-Medium size:11
56 |  */
57 | @property(nonatomic, strong) UIFont *textFont;
58 | /**
59 |  文字颜色，默认lightGrayColor
60 |  */
61 | @property(nonatomic, strong) UIColor *textColor;
62 | 
63 | /**
64 |  选中文字颜色，默认whiteColor
65 |  */
66 | @property(nonatomic, strong) UIColor *selectedTextColor;
67 | 
68 | /**
69 |  slider颜色，默认lightGrayColor
70 |  */
71 | @property(nonatomic, strong) UIColor *sliderColor;
72 | 
73 | /**
74 |  slider与上下Item间隙，默认4.0f
75 |  */
76 | @property(nonatomic, assign) CGFloat sliderSpace;
77 | 
78 | - (void)selectIndex:(NSInteger)index;
79 | 
80 | @property(nonatomic, assign) id<ZTLetterIndexDelegate>delegate;
81 | 
82 | @end
83 | 


--------------------------------------------------------------------------------
/ZTLetterIndex/ZTLetterIndex.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  ZTLetterIndex.h
  3 | //  ZTLetterIndexDemo
  4 | //
  5 | //  Created by 赵天福 on 2017/3/20.
  6 | //  Copyright © 2017年 赵天福. All rights reserved.
  7 | //
  8 | 
  9 | #import "ZTLetterIndex.h"
 10 | 
 11 | #define kAnimationDuration  0.2f
 12 | 
 13 | @interface ZTLetterIndex ()
 14 | {
 15 |     NSInteger _lastIndex;
 16 |     CALayer   *_slidr;
 17 | }
 18 | 
 19 | @end
 20 | 
 21 | @implementation ZTLetterIndex
 22 | 
 23 | - (instancetype)initWithFrame:(CGRect)frame
 24 | {
 25 |     self = [super initWithFrame:frame];
 26 |     if (self) {
 27 |         _lastIndex = 0;
 28 |         self.textColor = [UIColor lightGrayColor];
 29 |         self.selectedTextColor = [UIColor whiteColor];
 30 |         self.itemSize = CGSizeMake(12.0f, 16.0f);
 31 |         self.sliderSize = CGSizeMake(12.0f, 40.0f);
 32 |         self.sliderColor = [UIColor lightGrayColor];
 33 |         self.textFont = [UIFont fontWithName:@"PingFangSC-Medium" size:11.0f];
 34 |         self.sliderSpace = 4.0f;
 35 |     }
 36 |     return self;
 37 | }
 38 | 
 39 | - (void)setDataArray:(NSArray *)dataArray
 40 | {
 41 |     _dataArray = dataArray;
 42 |     [self setupItems];
 43 | }
 44 | 
 45 | - (void)setupItems
 46 | {
 47 |     _slidr = [CALayer layer];
 48 |     _slidr.frame = CGRectMake((self.bounds.size.width - self.sliderSize.width)/2, 0, self.sliderSize.width, self.sliderSize.height + 2*self.sliderSpace);
 49 |     _slidr.backgroundColor = [UIColor clearColor].CGColor;
 50 |     [self.layer addSublayer:_slidr];
 51 |     
 52 |     CALayer *slidrColor = [CALayer layer];
 53 |     slidrColor = [CALayer layer];
 54 |     slidrColor.frame = CGRectMake(0, self.sliderSpace, self.sliderSize.width, self.sliderSize.height);
 55 |     slidrColor.cornerRadius = slidrColor.bounds.size.width/2;
 56 |     slidrColor.backgroundColor = self.sliderColor.CGColor;
 57 |     [_slidr addSublayer:slidrColor];
 58 |     
 59 |     [self.dataArray enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
 60 |         UILabel *item = [[UILabel alloc] init];
 61 |         item.frame = CGRectMake((self.bounds.size.width - self.itemSize.width)/2, self.itemSize.height * idx + (_slidr.bounds.size.height - self.itemSize.height), self.itemSize.width, self.itemSize.height);
 62 |         item.backgroundColor = [UIColor clearColor];
 63 |         item.text = [NSString stringWithFormat:@"%@",obj];
 64 |         item.font = self.textFont;
 65 |         item.textAlignment = NSTextAlignmentCenter;
 66 |         item.textColor = self.textColor;
 67 |         item.tag = 999 + idx;
 68 |         item.layer.masksToBounds = NO;
 69 |         item.userInteractionEnabled = YES;
 70 |         [self addSubview:item];
 71 |         
 72 |         UITapGestureRecognizer *singleTapGR;
 73 |         UILongPressGestureRecognizer *longPressGR;
 74 |         
 75 |         longPressGR = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(touchLong:)];
 76 |         longPressGR.allowableMovement=NO;
 77 |         longPressGR.minimumPressDuration = 0.2;
 78 |         
 79 |         singleTapGR = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(touchDown:)];
 80 |         singleTapGR.numberOfTapsRequired = 1;
 81 |         singleTapGR.numberOfTouchesRequired = 1;
 82 |         [item addGestureRecognizer:longPressGR];
 83 |         [item addGestureRecognizer:singleTapGR];
 84 |     }];
 85 |     
 86 |     UILabel *firstItem = (UILabel *)[self viewWithTag:999];
 87 |     firstItem.frame = CGRectMake(0, 0, self.itemSize.width, _slidr.bounds.size.height);
 88 |     firstItem.textColor = self.selectedTextColor;
 89 | }
 90 | 
 91 | - (void)touchDown:(UITapGestureRecognizer *)recognizer
 92 | {
 93 |     UILabel *item = (UILabel *)recognizer.view;
 94 |     [self selectIndex:item.tag - 999];
 95 |     if (self.delegate && [self.delegate respondsToSelector:@selector(ZTLetterIndex:didSelectedItemWithIndex:)]) {
 96 |         [self.delegate ZTLetterIndex:self didSelectedItemWithIndex:item.tag - 999];
 97 |     }
 98 | }
 99 | 
100 | - (void)touchLong:(UILongPressGestureRecognizer *)recognizer
101 | {
102 |     UILabel *item = (UILabel *)recognizer.view;
103 |     if (recognizer.state == UIGestureRecognizerStateBegan) {
104 |         [self selectIndex:item.tag - 999];
105 |         if (self.delegate && [self.delegate respondsToSelector:@selector(ZTLetterIndex:beginChangeItemWithIndex:)]) {
106 |             [self.delegate ZTLetterIndex:self beginChangeItemWithIndex:item.tag - 999];
107 |         }
108 |     }
109 |     else if (recognizer.state == UIGestureRecognizerStateChanged) {
110 |         CGPoint point = [recognizer locationInView:self];
111 |         
112 |         if (point.y < _lastIndex * self.itemSize.height && point.y > 0) {
113 |             [self selectIndex:_lastIndex - 1];
114 |         }
115 |         else if (point.y > _lastIndex * self.itemSize.height + _slidr.bounds.size.height && point.y < self.itemSize.height * self.dataArray.count + _slidr.bounds.size.height - self.itemSize.height) {
116 |             [self selectIndex:_lastIndex + 1];
117 |         }
118 |         if (self.delegate && [self.delegate respondsToSelector:@selector(ZTLetterIndex:isChangingItemWithIndex:)]) {
119 |             [self.delegate ZTLetterIndex:self isChangingItemWithIndex:_lastIndex];
120 |         }
121 |     }
122 |     else if (recognizer.state == UIGestureRecognizerStateEnded || recognizer.state == UIGestureRecognizerStateCancelled) {
123 |         if (self.delegate && [self.delegate respondsToSelector:@selector(ZTLetterIndex:endChangeItemWithIndex:)]) {
124 |             [self.delegate ZTLetterIndex:self endChangeItemWithIndex:_lastIndex];
125 |         }
126 |     }
127 |     
128 | }
129 | 
130 | - (void)selectIndex:(NSInteger)index;
131 | {
132 |     UILabel *item = (UILabel *)[self viewWithTag:index + 999];
133 |     
134 |     if (item.tag - 999 == _lastIndex) {
135 |         return;
136 |     }
137 |     
138 |     UILabel *oldItem = [self viewWithTag:_lastIndex + 999];
139 |     
140 |     [UIView animateWithDuration:kAnimationDuration
141 |                      animations:^{
142 |                          _slidr.frame = CGRectMake(_slidr.frame.origin.x, index*self.itemSize.height, _slidr.bounds.size.width, _slidr.bounds.size.height);
143 |                      }
144 |                      completion:^(BOOL finished) {
145 |                          item.textColor = self.selectedTextColor;
146 |                          oldItem.textColor = self.textColor;
147 |                      }];
148 |     
149 |     if (oldItem.tag < item.tag) {
150 |         oldItem.frame = CGRectMake(oldItem.frame.origin.x, oldItem.frame.origin.y + (_slidr.bounds.size.height - self.itemSize.height), self.itemSize.width, self.itemSize.height);
151 |         for (int i = (int)_lastIndex; i < item.tag - 999; ++i) {
152 |             UILabel *changeItem = [self viewWithTag:i + 999];
153 |             changeItem.frame = CGRectMake(changeItem.frame.origin.x, changeItem.frame.origin.y - (_slidr.bounds.size.height - self.itemSize.height), changeItem.bounds.size.width, changeItem.bounds.size.height);
154 |         }
155 |         item.frame = _slidr.frame;
156 |     }
157 |     else if (oldItem.tag > item.tag) {
158 |         oldItem.frame = CGRectMake(oldItem.frame.origin.x, oldItem.frame.origin.y + (_slidr.bounds.size.height - self.itemSize.height), self.itemSize.width, self.itemSize.height);
159 |         for (int i = (int)item.tag - 999 + 1; i < _lastIndex; ++i) {
160 |             UIButton *changeItem = [self viewWithTag:i + 999];
161 |             changeItem.frame = CGRectMake(changeItem.frame.origin.x, changeItem.frame.origin.y + (_slidr.bounds.size.height - self.itemSize.height), changeItem.bounds.size.width, changeItem.bounds.size.height);
162 |         }
163 |         item.frame = _slidr.frame;
164 |     }
165 |     _lastIndex = item.tag - 999;
166 | }
167 | 
168 | @end
169 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
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265 | 				7B1D08A31E8CFC24005E841A /* Main.storyboard in Resources */,
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292 | 				7B1D089D1E8CFC24005E841A /* AppDelegate.m in Sources */,
293 | 				7B1D089A1E8CFC24005E841A /* main.m in Sources */,
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--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:ZTLetterIndexDemo.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/AppDelegate.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.h
 3 | //  ZTLetterIndexDemo
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface AppDelegate : UIResponder <UIApplicationDelegate>
12 | 
13 | @property (strong, nonatomic) UIWindow *window;
14 | 
15 | 
16 | @end
17 | 
18 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/AppDelegate.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.m
 3 | //  ZTLetterIndexDemo
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import "AppDelegate.h"
10 | 
11 | @interface AppDelegate ()
12 | 
13 | @end
14 | 
15 | @implementation AppDelegate
16 | 
17 | 
18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
19 |     // Override point for customization after application launch.
20 |     return YES;
21 | }
22 | 
23 | 
24 | - (void)applicationWillResignActive:(UIApplication *)application {
25 |     // 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.
26 |     // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
27 | }
28 | 
29 | 
30 | - (void)applicationDidEnterBackground:(UIApplication *)application {
31 |     // 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.
32 |     // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
33 | }
34 | 
35 | 
36 | - (void)applicationWillEnterForeground:(UIApplication *)application {
37 |     // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
38 | }
39 | 
40 | 
41 | - (void)applicationDidBecomeActive:(UIApplication *)application {
42 |     // 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.
43 | }
44 | 
45 | 
46 | - (void)applicationWillTerminate:(UIApplication *)application {
47 |     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
48 | }
49 | 
50 | 
51 | @end
52 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/Assets.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 |   "info" : {
35 |     "version" : 1,
36 |     "author" : "xcode"
37 |   }
38 | }


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="11134" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="11106"/>
 5 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 6 |     </dependencies>
 7 |     <scenes>
 8 |         <!--View Controller-->
 9 |         <scene sceneID="EHf-IW-A2E">
10 |             <objects>
11 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
12 |                     <layoutGuides>
13 |                         <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
14 |                         <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
15 |                     </layoutGuides>
16 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
17 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
18 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
19 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
20 |                     </view>
21 |                 </viewController>
22 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
23 |             </objects>
24 |             <point key="canvasLocation" x="53" y="375"/>
25 |         </scene>
26 |     </scenes>
27 | </document>
28 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12118" systemVersion="16E195" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
 3 |     <device id="retina4_7" orientation="portrait">
 4 |         <adaptation id="fullscreen"/>
 5 |     </device>
 6 |     <dependencies>
 7 |         <deployment identifier="iOS"/>
 8 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12086"/>
 9 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
10 |     </dependencies>
11 |     <scenes>
12 |         <!--View Controller-->
13 |         <scene sceneID="tne-QT-ifu">
14 |             <objects>
15 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController">
16 |                     <layoutGuides>
17 |                         <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
18 |                         <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
19 |                     </layoutGuides>
20 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
21 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
22 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
23 |                         <subviews>
24 |                             <tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="44" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="53a-oV-x5w">
25 |                                 <rect key="frame" x="0.0" y="20" width="375" height="647"/>
26 |                                 <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
27 |                                 <connections>
28 |                                     <outlet property="dataSource" destination="BYZ-38-t0r" id="UrK-RH-Zbr"/>
29 |                                     <outlet property="delegate" destination="BYZ-38-t0r" id="7cf-bL-AXE"/>
30 |                                 </connections>
31 |                             </tableView>
32 |                         </subviews>
33 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
34 |                         <constraints>
35 |                             <constraint firstAttribute="trailing" secondItem="53a-oV-x5w" secondAttribute="trailing" id="55Y-CU-w7a"/>
36 |                             <constraint firstItem="53a-oV-x5w" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" id="e5D-r4-WIl"/>
37 |                             <constraint firstItem="wfy-db-euE" firstAttribute="top" secondItem="53a-oV-x5w" secondAttribute="bottom" id="inh-l9-FWh"/>
38 |                             <constraint firstItem="53a-oV-x5w" firstAttribute="top" secondItem="y3c-jy-aDJ" secondAttribute="bottom" id="yMb-qv-CBJ"/>
39 |                         </constraints>
40 |                     </view>
41 |                     <connections>
42 |                         <outlet property="tableView" destination="53a-oV-x5w" id="Rng-5Z-axn"/>
43 |                     </connections>
44 |                 </viewController>
45 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
46 |             </objects>
47 |             <point key="canvasLocation" x="136.80000000000001" y="138.98050974512745"/>
48 |         </scene>
49 |     </scenes>
50 | </document>
51 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/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>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</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>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>UILaunchStoryboardName</key>
24 | 	<string>LaunchScreen</string>
25 | 	<key>UIMainStoryboardFile</key>
26 | 	<string>Main</string>
27 | 	<key>UIRequiredDeviceCapabilities</key>
28 | 	<array>
29 | 		<string>armv7</string>
30 | 	</array>
31 | 	<key>UISupportedInterfaceOrientations</key>
32 | 	<array>
33 | 		<string>UIInterfaceOrientationPortrait</string>
34 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
35 | 		<string>UIInterfaceOrientationLandscapeRight</string>
36 | 	</array>
37 | </dict>
38 | </plist>
39 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/ViewController.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.h
 3 | //  ZTLetterIndexDemo
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface ViewController : UIViewController
12 | 
13 | 
14 | @end
15 | 
16 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/ViewController.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  ViewController.m
  3 | //  ZTLetterIndexDemo
  4 | //
  5 | //  Created by 赵天福 on 2017/3/30.
  6 | //  Copyright © 2017年 zt. All rights reserved.
  7 | //
  8 | 
  9 | #import "ViewController.h"
 10 | #import "ZTLetterIndex.h"
 11 | 
 12 | #define kScreenWidth ([[UIScreen mainScreen]bounds].size.width)
 13 | #define kScreenHeight ([[UIScreen mainScreen]bounds].size.height)
 14 | 
 15 | 
 16 | @interface ViewController ()<UITableViewDataSource, UITableViewDelegate, ZTLetterIndexDelegate>
 17 | {
 18 |     NSMutableArray *_dataSource;
 19 |     NSMutableArray *_letterArray;
 20 |     ZTLetterIndex  *_letterIndex;
 21 |     BOOL _isClick;
 22 | }
 23 | 
 24 | @property (weak, nonatomic) IBOutlet UITableView *tableView;
 25 | 
 26 | @end
 27 | 
 28 | @implementation ViewController
 29 | 
 30 | - (void)viewDidLoad {
 31 |     [super viewDidLoad];
 32 |     
 33 |     _isClick = NO;
 34 |     _dataSource = [NSMutableArray array];
 35 |     for (int i = 0; i < 26; ++i) {
 36 |         NSMutableArray *temp = [NSMutableArray array];
 37 |         for (int i = 0; i < arc4random()%5+3; ++i) {
 38 |             [temp addObject:[NSString stringWithFormat:@"%d",arc4random()%10000]];
 39 |         }
 40 |         [_dataSource addObject:temp];
 41 |     }
 42 |     
 43 |     _letterArray = [NSMutableArray array];
 44 |     for (char c='A';c<='Z';c++) {
 45 |         [_letterArray addObject:[NSString stringWithFormat:@"%c",c]];
 46 |     }
 47 |     
 48 |     _letterIndex = [[ZTLetterIndex alloc] initWithFrame:CGRectMake(kScreenWidth-20, (kScreenHeight - 16*25 - 40)/2, 12, 16*25 + 40 + 8)];
 49 |     _letterIndex.dataArray = _letterArray; //在其他用于展示的属性赋值之后赋值
 50 |     _letterIndex.delegate = self;
 51 |     [self.view addSubview:_letterIndex];
 52 | }
 53 | 
 54 | #pragma mark - ZTLetterIndexDelegate
 55 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView didSelectedItemWithIndex:(NSInteger)index
 56 | {
 57 |     _isClick = YES;
 58 |     [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:index] atScrollPosition:UITableViewScrollPositionTop animated:NO];
 59 | }
 60 | 
 61 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView beginChangeItemWithIndex:(NSInteger)index
 62 | {
 63 |     [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:index] atScrollPosition:UITableViewScrollPositionTop animated:NO];
 64 | }
 65 | 
 66 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView endChangeItemWithIndex:(NSInteger)index
 67 | {
 68 |     [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:index] atScrollPosition:UITableViewScrollPositionTop animated:NO];
 69 | }
 70 | 
 71 | - (void)ZTLetterIndex:(ZTLetterIndex *)indexView isChangingItemWithIndex:(NSInteger)index
 72 | {
 73 |     [self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:index] atScrollPosition:UITableViewScrollPositionTop animated:NO];
 74 | }
 75 | 
 76 | #pragma mark - UITableViewDelegate&DateSource
 77 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 78 | {
 79 |     static NSString *identifier = @"Cell";
 80 |     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
 81 |     if (!cell) {
 82 |         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:identifier];
 83 |     }
 84 |     cell.textLabel.text = _dataSource[indexPath.section][indexPath.row];
 85 | 
 86 |     return cell;
 87 | }
 88 | 
 89 | - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
 90 | {
 91 |     return _letterArray[section];
 92 | }
 93 | 
 94 | - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
 95 | {
 96 |     return _dataSource.count;
 97 | }
 98 | 
 99 | - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
100 | {
101 |     return [_dataSource[section] count];
102 | }
103 | 
104 | #pragma mark -UIScrollViewDelegate
105 | - (void)scrollViewDidScroll:(UIScrollView *)scrollView
106 | {
107 |     if (_isClick) {
108 |         return;
109 |     }
110 |     NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:scrollView.contentOffset];
111 |     [_letterIndex selectIndex:indexPath.section];
112 | }
113 | -(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
114 |     _isClick = NO;
115 | }
116 | 
117 | @end
118 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemo/main.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  main.m
 3 | //  ZTLetterIndexDemo
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | #import "AppDelegate.h"
11 | 
12 | int main(int argc, char * argv[]) {
13 |     @autoreleasepool {
14 |         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
15 |     }
16 | }
17 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemoTests/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>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</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>CFBundleVersion</key>
20 | 	<string>1</string>
21 | </dict>
22 | </plist>
23 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemoTests/ZTLetterIndexDemoTests.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ZTLetterIndexDemoTests.m
 3 | //  ZTLetterIndexDemoTests
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import <XCTest/XCTest.h>
10 | 
11 | @interface ZTLetterIndexDemoTests : XCTestCase
12 | 
13 | @end
14 | 
15 | @implementation ZTLetterIndexDemoTests
16 | 
17 | - (void)setUp {
18 |     [super setUp];
19 |     // Put setup code here. This method is called before the invocation of each test method in the class.
20 | }
21 | 
22 | - (void)tearDown {
23 |     // Put teardown code here. This method is called after the invocation of each test method in the class.
24 |     [super tearDown];
25 | }
26 | 
27 | - (void)testExample {
28 |     // This is an example of a functional test case.
29 |     // Use XCTAssert and related functions to verify your tests produce the correct results.
30 | }
31 | 
32 | - (void)testPerformanceExample {
33 |     // This is an example of a performance test case.
34 |     [self measureBlock:^{
35 |         // Put the code you want to measure the time of here.
36 |     }];
37 | }
38 | 
39 | @end
40 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemoUITests/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>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</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>CFBundleVersion</key>
20 | 	<string>1</string>
21 | </dict>
22 | </plist>
23 | 


--------------------------------------------------------------------------------
/ZTLetterIndexDemo/ZTLetterIndexDemoUITests/ZTLetterIndexDemoUITests.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ZTLetterIndexDemoUITests.m
 3 | //  ZTLetterIndexDemoUITests
 4 | //
 5 | //  Created by 赵天福 on 2017/3/30.
 6 | //  Copyright © 2017年 zt. All rights reserved.
 7 | //
 8 | 
 9 | #import <XCTest/XCTest.h>
10 | 
11 | @interface ZTLetterIndexDemoUITests : XCTestCase
12 | 
13 | @end
14 | 
15 | @implementation ZTLetterIndexDemoUITests
16 | 
17 | - (void)setUp {
18 |     [super setUp];
19 |     
20 |     // Put setup code here. This method is called before the invocation of each test method in the class.
21 |     
22 |     // In UI tests it is usually best to stop immediately when a failure occurs.
23 |     self.continueAfterFailure = NO;
24 |     // UI tests must launch the application that they test. Doing this in setup will make sure it happens for each test method.
25 |     [[[XCUIApplication alloc] init] launch];
26 |     
27 |     // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
28 | }
29 | 
30 | - (void)tearDown {
31 |     // Put teardown code here. This method is called after the invocation of each test method in the class.
32 |     [super tearDown];
33 | }
34 | 
35 | - (void)testExample {
36 |     // Use recording to get started writing UI tests.
37 |     // Use XCTAssert and related functions to verify your tests produce the correct results.
38 | }
39 | 
40 | @end
41 | 


--------------------------------------------------------------------------------