├── CMIndexBar.h
├── CMIndexBar.m
├── LICENSE
└── README.md


/CMIndexBar.h:
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 1 | //
 2 | //  indexBar.h
 3 | //
 4 | //  Created by Craig Merchant on 07/04/2011.
 5 | //  Copyright 2011 RaptorApps. All rights reserved.
 6 | //
 7 | 
 8 | #import <Foundation/Foundation.h>
 9 | 
10 | @protocol CMIndexBarDelegate;
11 | 
12 | @interface CMIndexBar : UIView
13 | 
14 | - (id)init;
15 | - (id)initWithFrame:(CGRect)frame;
16 | - (void)setIndexes:(NSArray*)indexes;
17 | - (void)clearIndex;
18 | 
19 | @property (nonatomic, weak) id<CMIndexBarDelegate> delegate;
20 | @property (nonatomic, strong) UIColor *highlightedBackgroundColor;
21 | @property (nonatomic, strong) UIColor *textColor;
22 | @property (nonatomic, strong) UIFont *textFont;
23 | 
24 | @end
25 | 
26 | @protocol CMIndexBarDelegate<NSObject>
27 | @optional
28 | - (void)indexSelectionDidChange:(CMIndexBar *)indexBar index:(NSInteger)index title:(NSString*)title;
29 | @end


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/CMIndexBar.m:
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  1 | //
  2 | //  CMIndexBar.m
  3 | //
  4 | //  Created by Craig Merchant on 07/04/2011.
  5 | //
  6 | 
  7 | #import "CMIndexBar.h"
  8 | 
  9 | #import <QuartzCore/QuartzCore.h>
 10 | 
 11 | @interface CMIndexBar ()
 12 | 
 13 | - (void)initializeDefaults;
 14 | 
 15 | @end
 16 | 
 17 | @implementation CMIndexBar
 18 | 
 19 | @synthesize delegate;
 20 | @synthesize highlightedBackgroundColor;
 21 | @synthesize textColor;
 22 | 
 23 | - (id)init {
 24 | 	if ((self = [super init])) {
 25 |         [self initializeDefaults];
 26 | 	}
 27 |     
 28 | 	return self;
 29 | }
 30 | 
 31 | - (id)initWithFrame:(CGRect)frame  {
 32 |     if ((self = [super initWithFrame:frame]))  {
 33 |         [self initializeDefaults];
 34 |     }
 35 |     
 36 |     return self;
 37 | }
 38 | 
 39 | - (void)initializeDefaults {
 40 |     // Default colors.
 41 |     self.backgroundColor = [UIColor clearColor];
 42 |     self.textColor = [UIColor blackColor];
 43 |     self.highlightedBackgroundColor = [UIColor lightGrayColor];
 44 | 
 45 |     // HelveticaNeue Bold 11pt is a font of native table index
 46 |     self.textFont = [UIFont fontWithName: @"HelveticaNeue-Bold" size: 11];
 47 | }
 48 | 
 49 | - (void)layoutSubviews 
 50 | {
 51 | 	[super layoutSubviews];	
 52 | 
 53 | 	int i=0;
 54 | 	int subcount=0;
 55 | 	
 56 | 	for (UIView *subview in self.subviews) 
 57 | 	{
 58 | 		if ([subview isKindOfClass:[UILabel class]]) 
 59 | 		{
 60 | 			subcount++;
 61 | 		}
 62 | 	}
 63 | 	
 64 | 	for (UIView *subview in self.subviews) 
 65 | 	{
 66 | 		if ([subview isKindOfClass:[UILabel class]]) 
 67 | 		{
 68 | 			float ypos;
 69 | 			
 70 | 			if(i == 0)
 71 | 			{
 72 | 				ypos = 0;
 73 | 			}
 74 | 			else if(i == subcount-1)
 75 | 			{
 76 | 				ypos = self.frame.size.height-24.0;
 77 | 			}
 78 | 			else
 79 | 			{
 80 | 				float sectionheight = ((self.frame.size.height-24.0)/subcount);
 81 | 				
 82 | 				sectionheight = sectionheight+(sectionheight/subcount);
 83 | 				
 84 | 				ypos = (sectionheight*i);
 85 | 			}
 86 | 			
 87 | 			[subview setFrame:CGRectMake(0, ypos, self.frame.size.width, 24.0)];
 88 | 			
 89 | 			i++;
 90 | 		}
 91 | 	}
 92 | }
 93 | 
 94 | - (void) setIndexes:(NSArray*)indexes
 95 | {	
 96 | 	[self clearIndex];
 97 | 	
 98 | 	int i;
 99 | 	
100 | 	for (i=0; i<[indexes count]; i++)
101 | 	{
102 | 		float ypos;
103 | 		
104 | 		if(i == 0)
105 | 		{
106 | 			ypos = 0;
107 | 		}
108 | 		else if(i == [indexes count]-1)
109 | 		{
110 | 			ypos = self.frame.size.height-24.0;
111 | 		}
112 | 		else
113 | 		{
114 | 			float sectionheight = ((self.frame.size.height-24.0)/[indexes count]);			
115 | 			sectionheight = sectionheight+(sectionheight/[indexes count]);
116 | 			
117 | 			ypos = (sectionheight*i);
118 | 		}
119 | 		
120 | 		UILabel *alphaLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, ypos, self.frame.size.width, 24.0)];
121 | 		alphaLabel.textAlignment = NSTextAlignmentCenter;
122 | 		alphaLabel.text = [indexes objectAtIndex:i];
123 | 		alphaLabel.font = self.textFont;
124 | 		alphaLabel.backgroundColor = [UIColor clearColor];
125 | 		alphaLabel.textColor = textColor;
126 | 		[self addSubview:alphaLabel];	
127 | 	}
128 | }
129 | 
130 | - (void) clearIndex
131 | {
132 | 	for (UIView *subview in self.subviews) 
133 | 	{
134 | 		[subview removeFromSuperview];
135 | 	}
136 | }
137 | 
138 | - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
139 | {
140 | 	[super touchesEnded:touches withEvent:event];
141 |   [self touchesEndedOrCancelled:touches withEvent:event];
142 | }
143 | 
144 | - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
145 | {
146 |   [super touchesCancelled:touches withEvent:event];
147 |   [self touchesEndedOrCancelled:touches withEvent:event];
148 | }
149 | 
150 | - (void) touchesEndedOrCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
151 |  	UIView *backgroundView = (UIView*)[self viewWithTag:767];
152 | 	[backgroundView removeFromSuperview]; 
153 | }
154 | 
155 | - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
156 | {
157 | 	[super touchesBegan:touches withEvent:event];
158 | 	
159 | 	UIView *backgroundview = [[UIView alloc] initWithFrame:CGRectMake(0,0, self.bounds.size.width, self.bounds.size.height)];
160 | 	[backgroundview setBackgroundColor:highlightedBackgroundColor];
161 | 	backgroundview.layer.cornerRadius = self.bounds.size.width/2;
162 | 	backgroundview.layer.masksToBounds = YES;
163 | 	backgroundview.tag = 767;
164 | 	[self addSubview:backgroundview];
165 | 	[self sendSubviewToBack:backgroundview];
166 | 	
167 |     if (!self.delegate) return;
168 | 	
169 |     CGPoint touchPoint = [[[event touchesForView:self] anyObject] locationInView:self];
170 | 
171 | 	if(touchPoint.x < 0)
172 | 	{
173 | 		return;
174 | 	}
175 | 	
176 | 	NSString *title = nil;
177 | 	int count=0;
178 | 	
179 | 	for (UILabel *subview in self.subviews) 
180 | 	{
181 | 		if ([subview isKindOfClass:[UILabel class]]) 
182 | 		{
183 | 			if(touchPoint.y < subview.frame.origin.y+subview.frame.size.height)
184 | 			{
185 | 				count++;
186 | 				title = subview.text;
187 | 				break;
188 | 			}
189 | 			
190 | 			count++;
191 | 			title = subview.text;
192 | 		}
193 | 	}
194 | 	
195 |     if ([delegate respondsToSelector: @selector(indexSelectionDidChange:index:title:)])
196 |         [delegate indexSelectionDidChange: self index: count - 1 title: title];
197 | }
198 | 
199 | 
200 | - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
201 | {
202 |     [super touchesMoved:touches withEvent:event];
203 | 
204 | 	if (!self.delegate) return;
205 | 	
206 |     CGPoint touchPoint = [[[event touchesForView:self] anyObject] locationInView:self];
207 | 	
208 | 	if(touchPoint.x < 0)
209 | 	{
210 | 		return;
211 | 	}
212 | 	
213 | 	NSString *title = nil;
214 | 	int count=0;
215 | 	
216 | 	for (UILabel *subview in self.subviews) 
217 | 	{
218 | 		if ([subview isKindOfClass:[UILabel class]]) 
219 | 		{
220 | 			if(touchPoint.y < subview.frame.origin.y+subview.frame.size.height)
221 | 			{
222 | 				count++;
223 | 				title = subview.text;
224 | 				break;
225 | 			}
226 | 			
227 | 			count++;
228 | 			title = subview.text;
229 | 		}
230 | 	}
231 | 	
232 |     if ([delegate respondsToSelector: @selector(indexSelectionDidChange:index:title:)])
233 |         [delegate indexSelectionDidChange: self index: count - 1 title: title];
234 | }
235 | 
236 | @end
237 | 


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/LICENSE:
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 1 | Copyright (C) 2011 by Craig Merchant
 2 | 
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy
 4 | of this software and associated documentation files (the "Software"), to deal
 5 | in the Software without restriction, including without limitation the rights
 6 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 7 | copies of the Software, and to permit persons to whom the Software is
 8 | furnished to do so, subject to the following conditions:
 9 | 
10 | The above copyright notice and this permission notice shall be included in
11 | all copies or substantial portions of the Software.
12 | 
13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 | THE SOFTWARE.


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/README.md:
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 1 | Simple replacement for UITableView Index that allows setting of colors.
 2 | -----------------------------------------------------------------------
 3 | 
 4 | **Now it supports ARC.**
 5 | 
 6 | Usage example:
 7 | 
 8 | ```Objective-C
 9 | CMIndexBar *indexBar = [[CMIndexBar alloc] initWithFrame:CGRectMake(self.view.frame.size.width-35, 10.0, 28.0, self.view.frame.size.height-20)];
10 | [indexBar setIndexes:[NSMutableArray arrayWithObjects:@"A",@"B",@"C",@"D",@"E",@"F",@"G", nil]];
11 | [self.view addSubview:indexBar];
12 | ```
13 | 
14 | Delegate:
15 | 
16 | ```Objective-C
17 | - (void)indexSelectionDidChange:(CMIndexBar *)indexBar index:(NSInteger)index title:(NSString*)title;
18 | ```
19 | 
20 | ToDo:
21 | -----
22 | 1. ~~Font changing support~~
23 | 1. UITableViewIndexSearch glyph support
24 | 
25 | 
26 | 


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