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| 1 | +/* |
| 2 | + File: MyTableViewController.m |
| 3 | + Abstract: The main table view controller of this app. |
| 4 | + Version: 1.2 |
| 5 | + |
| 6 | + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple |
| 7 | + Inc. ("Apple") in consideration of your agreement to the following |
| 8 | + terms, and your use, installation, modification or redistribution of |
| 9 | + this Apple software constitutes acceptance of these terms. If you do |
| 10 | + not agree with these terms, please do not use, install, modify or |
| 11 | + redistribute this Apple software. |
| 12 | + |
| 13 | + In consideration of your agreement to abide by the following terms, and |
| 14 | + subject to these terms, Apple grants you a personal, non-exclusive |
| 15 | + license, under Apple's copyrights in this original Apple software (the |
| 16 | + "Apple Software"), to use, reproduce, modify and redistribute the Apple |
| 17 | + Software, with or without modifications, in source and/or binary forms; |
| 18 | + provided that if you redistribute the Apple Software in its entirety and |
| 19 | + without modifications, you must retain this notice and the following |
| 20 | + text and disclaimers in all such redistributions of the Apple Software. |
| 21 | + Neither the name, trademarks, service marks or logos of Apple Inc. may |
| 22 | + be used to endorse or promote products derived from the Apple Software |
| 23 | + without specific prior written permission from Apple. Except as |
| 24 | + expressly stated in this notice, no other rights or licenses, express or |
| 25 | + implied, are granted by Apple herein, including but not limited to any |
| 26 | + patent rights that may be infringed by your derivative works or by other |
| 27 | + works in which the Apple Software may be incorporated. |
| 28 | + |
| 29 | + The Apple Software is provided by Apple on an "AS IS" basis. APPLE |
| 30 | + MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION |
| 31 | + THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS |
| 32 | + FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND |
| 33 | + OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. |
| 34 | + |
| 35 | + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL |
| 36 | + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 37 | + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 38 | + INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, |
| 39 | + MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED |
| 40 | + AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), |
| 41 | + STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE |
| 42 | + POSSIBILITY OF SUCH DAMAGE. |
| 43 | + |
| 44 | + Copyright (C) 2010 Apple Inc. All Rights Reserved. |
| 45 | + |
| 46 | + */ |
| 47 | + |
| 48 | +#import "MyTableViewController.h" |
| 49 | + |
| 50 | +@interface MyTableViewController () |
| 51 | +@property (nonatomic, retain) NSMutableArray *dataArray; |
| 52 | +@end |
| 53 | + |
| 54 | +@implementation MyTableViewController |
| 55 | + |
| 56 | +@synthesize dataArray; |
| 57 | + |
| 58 | +- (void)viewDidLoad |
| 59 | +{ |
| 60 | + // load our data from a plist file inside our app bundle |
| 61 | + NSString *path = [[NSBundle mainBundle] pathForResource:@"tableData" ofType:@"plist"]; |
| 62 | + self.dataArray = [NSMutableArray arrayWithContentsOfFile:path]; |
| 63 | +} |
| 64 | + |
| 65 | + |
| 66 | +// called after the view controller's view is released and set to nil. |
| 67 | +// For example, a memory warning which causes the view to be purged. Not invoked as a result of -dealloc. |
| 68 | +// So release any properties that are loaded in viewDidLoad or can be recreated lazily. |
| 69 | +// |
| 70 | +- (void)viewDidUnload |
| 71 | +{ |
| 72 | + self.dataArray = nil; |
| 73 | +} |
| 74 | + |
| 75 | + |
| 76 | +- (void)dealloc |
| 77 | +{ |
| 78 | + [dataArray release]; |
| 79 | + [super dealloc]; |
| 80 | +} |
| 81 | + |
| 82 | + |
| 83 | +#pragma mark - UITableView delegate methods |
| 84 | + |
| 85 | +- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section |
| 86 | +{ |
| 87 | + return [dataArray count]; |
| 88 | +} |
| 89 | + |
| 90 | + |
| 91 | +- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath |
| 92 | +{ |
| 93 | + [self tableView: self.tableView accessoryButtonTappedForRowWithIndexPath: indexPath]; |
| 94 | + [self.tableView deselectRowAtIndexPath:indexPath animated:YES]; |
| 95 | +} |
| 96 | + |
| 97 | + |
| 98 | +- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath |
| 99 | +{ |
| 100 | + static NSString *kCustomCellID = @"MyCellID"; |
| 101 | + |
| 102 | + UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kCustomCellID]; |
| 103 | + if (cell == nil) |
| 104 | + { |
| 105 | + cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCustomCellID] autorelease]; |
| 106 | + cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; |
| 107 | + cell.selectionStyle = UITableViewCellSelectionStyleBlue; |
| 108 | + } |
| 109 | + |
| 110 | + NSMutableDictionary *item = [dataArray objectAtIndex:indexPath.row]; |
| 111 | + cell.textLabel.text = [item objectForKey:@"text"]; |
| 112 | + |
| 113 | + [item setObject:cell forKey:@"cell"]; |
| 114 | + |
| 115 | + BOOL checked = [[item objectForKey:@"checked"] boolValue]; |
| 116 | + UIImage *image = (checked) ? [UIImage imageNamed:@"checked.png"] : [UIImage imageNamed:@"unchecked.png"]; |
| 117 | + |
| 118 | + UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; |
| 119 | + CGRect frame = CGRectMake(0.0, 0.0, image.size.width, image.size.height); |
| 120 | + button.frame = frame; // match the button's size with the image size |
| 121 | + |
| 122 | + [button setBackgroundImage:image forState:UIControlStateNormal]; |
| 123 | + |
| 124 | + // set the button's target to this table view controller so we can interpret touch events and map that to a NSIndexSet |
| 125 | + [button addTarget:self action:@selector(checkButtonTapped:event:) forControlEvents:UIControlEventTouchUpInside]; |
| 126 | + cell.backgroundColor = [UIColor clearColor]; |
| 127 | + cell.accessoryView = button; |
| 128 | + |
| 129 | + return cell; |
| 130 | +} |
| 131 | + |
| 132 | + |
| 133 | +- (void)checkButtonTapped:(id)sender event:(id)event |
| 134 | +{ |
| 135 | + NSSet *touches = [event allTouches]; |
| 136 | + UITouch *touch = [touches anyObject]; |
| 137 | + CGPoint currentTouchPosition = [touch locationInView:self.tableView]; |
| 138 | + NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint: currentTouchPosition]; |
| 139 | + if (indexPath != nil) |
| 140 | + { |
| 141 | + [self tableView: self.tableView accessoryButtonTappedForRowWithIndexPath: indexPath]; |
| 142 | + } |
| 143 | +} |
| 144 | + |
| 145 | + |
| 146 | +- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath |
| 147 | +{ |
| 148 | + NSMutableDictionary *item = [dataArray objectAtIndex:indexPath.row]; |
| 149 | + |
| 150 | + BOOL checked = [[item objectForKey:@"checked"] boolValue]; |
| 151 | + |
| 152 | + [item setObject:[NSNumber numberWithBool:!checked] forKey:@"checked"]; |
| 153 | + |
| 154 | + UITableViewCell *cell = [item objectForKey:@"cell"]; |
| 155 | + UIButton *button = (UIButton *)cell.accessoryView; |
| 156 | + |
| 157 | + UIImage *newImage = (checked) ? [UIImage imageNamed:@"unchecked.png"] : [UIImage imageNamed:@"checked.png"]; |
| 158 | + [button setBackgroundImage:newImage forState:UIControlStateNormal]; |
| 159 | +} |
| 160 | + |
| 161 | +@end |
| 162 | + |
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