Khan's Notebook GCC/GNU/Linux Delphi/Window Java/Anywhere

 1 //
 2 //  UIImage+animatedImageWithGIF.h
 3 //
 4 //  Created by YuAo on 2/24/12.
 5 //  Copyright (c) 2012 eico design. All rights reserved.
 6 //
 7 //  Note: 
 8 //        ImageIO.framework is needed.
 9 //        This lib is only available on iOS 4+
10 
11 #import <Foundation/Foundation.h>
12 
13 @interface UIImageView(animatedImageViewWithGIF)
14 + (UIImageView *)imageViewWithGIFData:(NSData *)data;
15 //+ (UIImageView *)imageViewWithGIFURL:(NSURL *)url;
16 @end

 1 //
 2 //  UIImage+animatedImageWithGIF.m
 3 //
 4 //  Created by YuAo on 2/24/12.
 5 //  Copyright (c) 2012 eico design. All rights reserved.
 6 //
 7 
 8 #import "UIImageView+imageViewWithGIF.h"
 9 #import <ImageIO/ImageIO.h>
10 
11 #if __has_feature(objc_arc)
12     #define toCF (__bridge CFTypeRef)
13     #define ARCCompatibleAutorelease(object) object
14 #else
15     #define toCF (CFTypeRef)
16     #define ARCCompatibleAutorelease(object) [object autorelease]
17 #endif
18 
19 @implementation UIImageView(animatedImageViewWithGIF)
20 
21 + (UIImageView *)imageViewWithAnimatedGIFImageSource:(CGImageSourceRef) source 
22                                          andDuration:(NSTimeInterval) duration {
23     if (!source) return nil;
24     size_t count = CGImageSourceGetCount(source);
25     NSMutableArray *images = [NSMutableArray arrayWithCapacity:count];
26 
27     for (size_t i = 0; i < count; ++i) {
28         CGImageRef cgImage = CGImageSourceCreateImageAtIndex(source, i, NULL);
29         if (!cgImage)
30             return nil;
31         [images addObject:[UIImage imageWithCGImage:cgImage]];
32         CGImageRelease(cgImage);
33     }
34     UIImageView *imageView = [[UIImageView alloc] init];
35     if ([images count] > 0) {
36         imageView.image = [images objectAtIndex:0];
37     }
38     [imageView setAnimationImages:images];
39     [imageView setHighlighted:NO];
40 //    [imageView setHighlightedAnimationImages:images];
41     [imageView setAnimationDuration:duration];
42     [imageView sizeToFit];
43     NSArray *arr = [NSArray arrayWithObject:NSRunLoopCommonModes]; //优先级提升. 可以解决tableview滚动时动画暂停的问题
44     [imageView performSelector:@selector(startAnimating) withObject:nil afterDelay:0.1f inModes:arr];
45 //    NSLog(@"begin");
46     return ARCCompatibleAutorelease(imageView);
47 }
48 
49 + (NSTimeInterval)durationForGifData:(NSData *)data {
50     char graphicControlExtensionStartBytes[] = {0x21,0xF9,0x04};
51     double duration=0;
52     NSRange dataSearchLeftRange = NSMakeRange(0, data.length);
53     while(YES){
54         NSRange frameDescriptorRange = [data rangeOfData:[NSData dataWithBytes:graphicControlExtensionStartBytes 
55                                                                         length:3] 
56                                                  options:NSDataSearchBackwards
57                                                    range:dataSearchLeftRange];
58         if(frameDescriptorRange.location != NSNotFound){
59             NSData *durationData = [data subdataWithRange:NSMakeRange(frameDescriptorRange.location+4, 2)];
60             unsigned char buffer[2];
61             [durationData getBytes:buffer];
62             double delay = (buffer[0] | buffer[1] << 8);
63             duration += delay;
64             dataSearchLeftRange = NSMakeRange(0, frameDescriptorRange.location);
65         }else{
66             break;
67         }
68     }
69     return duration/100;
70 }
71 
72 + (UIImageView *)imageViewWithGIFData:(NSData *)data{
73     NSTimeInterval duration = [self durationForGifData:data];
74     CGImageSourceRef source = CGImageSourceCreateWithData(toCF data, NULL);
75     UIImageView *imageView = [UIImageView imageViewWithAnimatedGIFImageSource:source andDuration:duration]; 
76     CFRelease(source);
77     return imageView;
78 }
79 
80 //+ (UIImageView *)imageViewWithGIFURL:(NSURL *)url{
81 //    NSData *data = [NSData dataWithContentsOfURL:url];
82 //    return [UIImageView imageViewWithGIFData:data];
83 //}
84 
85 @end
86 

 1 //
 2 //  testViewController.h
 3 //  UIImageViewGIF
 4 //
 5 //  Created by khan.lau on 13-2-26.
 6 //
 7 //
 8 
 9 #import <UIKit/UIKit.h>
10 
11 @interface testViewController : UITableViewController
12 
13 @end

  1 //  在UITableview中显示的范例
  2 //  testViewController.m
  3 //  UIImageViewGIF
  4 //
  5 //  Created by khan.lau on 13-2-26.
  6 //
  7 //
  8 
  9 #import "testViewController.h"
 10 #import "UIImageView+imageViewWithGIF.h"
 11 
 12 @interface testViewController ()
 13 
 14 @end
 15 
 16 @implementation testViewController
 17 
 18 - (id)initWithStyle:(UITableViewStyle)style
 19 {
 20     self = [super initWithStyle:style];
 21     if (self) {
 22         // Custom initialization
 23     }
 24     return self;
 25 }
 26 
 27 - (void)viewDidLoad
 28 {
 29     [super viewDidLoad];
 30     UIBarButtonItem *exitBtn = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStyleBordered target:self action:@selector(doExit:)]  ;
 31     self.navigationItem.leftBarButtonItem = exitBtn;
 32     // Uncomment the following line to preserve selection between presentations.
 33     // self.clearsSelectionOnViewWillAppear = NO;
 34  
 35     // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
 36     // self.navigationItem.rightBarButtonItem = self.editButtonItem;
 37     
 38 }
 39 - (void)reStartAnimating{
 40     NSArray *vc = [self.tableView visibleCells];
 41     for (UITableViewCell *cell in vc) {
 42 //        NSLog(@"%d", [cell isSelected]);
 43 //        if ([cell isSelected] == NO) {
 44 //            continue;
 45 //        }
 46         for (UIView *v in [cell.contentView subviews]) {
 47             if ([v isKindOfClass:[UIImageView class]]){
 48                 UIImageView * imageview = (UIImageView *)v;
 49                 if ([imageview isAnimating] == NO) {
 50                     [imageview startAnimating];
 51                 }
 52             }
 53         }
 54     }
 55 }
 56 
 57 - (void)didReceiveMemoryWarning
 58 {
 59     [super didReceiveMemoryWarning];
 60     // Dispose of any resources that can be recreated.
 61 }
 62 -(void)doExit:(id)sender{
 63     [self.parentViewController dismissViewControllerAnimated:YES completion:^{}];
 64     //    [self.parentViewController dismissModalViewControllerAnimated:YES];
 65 }
 66 #pragma mark - Table view data source
 67 
 68 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
 69 {
 70     // Return the number of sections.
 71     return 1;
 72 }
 73 
 74 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
 75 {
 76     // Return the number of rows in the section.
 77     return 8;
 78 }
 79 
 80 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 81 {
 82     static NSString *CellIdentifier = @"Cell";
 83     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
 84     if (cell == nil) {
 85         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
 86     }
 87 
 88     for (UIView *v in [cell.contentView subviews]) {
 89         if ([v isKindOfClass:[UIView class]]){
 90             [v removeFromSuperview];
 91         }
 92     }
 93     if ([indexPath row] == 0) {
 94 //        NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
 95 //                                                          pathForResource:@"demo"
 96 //                                                          ofType:@"gif"]];
 97         UIImageView *imageView = [[UIImageView alloc] init];
 98         imageView.image = [UIImage imageNamed:@"IMG_0015.jpg"];
 99         imageView.frame = CGRectMake(0, 0, 100, 100);
100         [cell.contentView addSubview:imageView];
101     }else if ( [indexPath row] == 1){
102         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
103                                                           pathForResource:@"bbb"
104                                                           ofType:@"gif"]];
105         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
106         imageView.frame = CGRectMake(0, 0, 100, 100);
107         [cell.contentView addSubview:imageView];
108     }else if ( [indexPath row] == 2){
109         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
110                                                           pathForResource:@"demo"
111                                                           ofType:@"gif"]];
112         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
113         imageView.frame = CGRectMake(0, 0, 100, 100);
114         [cell.contentView addSubview:imageView];
115     }else if ( [indexPath row] == 3){
116         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
117                                                           pathForResource:@"bbb"
118                                                           ofType:@"gif"]];
119         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
120         imageView.frame = CGRectMake(0, 0, 100, 100);
121         [cell.contentView addSubview:imageView];
122     }else if ( [indexPath row] == 4){
123         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
124                                                           pathForResource:@"demo"
125                                                           ofType:@"gif"]];
126         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
127         imageView.frame = CGRectMake(0, 0, 100, 100);
128         [cell.contentView addSubview:imageView];
129     }else if ( [indexPath row] == 5){
130         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
131                                                           pathForResource:@"bbb"
132                                                           ofType:@"gif"]];
133         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
134         imageView.frame = CGRectMake(0, 0, 100, 100);
135         [cell.contentView addSubview:imageView];
136     }else if ( [indexPath row] == 6){
137         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
138                                                           pathForResource:@"demo"
139                                                           ofType:@"gif"]];
140         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
141         imageView.frame = CGRectMake(0, 0, 100, 100);
142         [cell.contentView addSubview:imageView];
143     }else if ( [indexPath row] == 7){
144         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
145                                                           pathForResource:@"bbb"
146                                                           ofType:@"gif"]];
147         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
148         imageView.frame = CGRectMake(0, 0, 100, 100);
149         [cell.contentView addSubview:imageView];
150     }else{
151         NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
152                                                           pathForResource:@"bbb"
153                                                           ofType:@"gif"]];
154         UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
155         imageView.frame = CGRectMake(0, 0, 100, 100);
156         [cell.contentView addSubview:imageView];
157     }
158     
159 
160 //    [self performSelector:@selector(reStartAnimating) withObject:nil afterDelay:0.3f];
161     return cell;
162 }
163 //行高度
164 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
165     if ([indexPath section]==0) {
166         return 115;
167     } else
168         return 50;
169 }
170 
171 //判断选中的行
172 -(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath{
173 //    [self reStartAnimating];
174     return indexPath;
175 }
176 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
177     [self performSelector:@selector(reStartAnimating) withObject:nil afterDelay:0.3f];
178 //    [tableView deselectRowAtIndexPath:indexPath animated:YES];//选中后的反显颜色即刻消失
179 }
180 
181 
182 - (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
183 //    [self reStartAnimating];
184     return indexPath;
185 }
186 // Called after the user changes the selection.
187 - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{
188     [self performSelector:@selector(reStartAnimating) withObject:nil afterDelay:0.3f];
189 }
190 
191 
192 
193 @end
194 

 1 //  主界面入口.... 包含在正常的UIViewController中显示gif
 2 //  DemoViewController.m
 3 //  UIImageViewGIF
 4 //
 5 //  Created by YuAo on 2/27/12.
 6 //  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
 7 //
 8 
 9 #import "DemoViewController.h"
10 #import "UIImageView+imageViewWithGIF.h"
11 #import "testViewController.h"
12 
13 @implementation DemoViewController
14 
15 - (void)loadView {
16     UIView *mainView = [[[UIView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame] autorelease];
17     mainView.backgroundColor = [UIColor whiteColor];
18     
19     NSData *gifData = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] 
20                                      pathForResource:@"demo"
21                                               ofType:@"gif"]];
22     UIImageView *imageView = [UIImageView imageViewWithGIFData:gifData];
23     imageView.frame = CGRectMake(90, 100, 100, 100);
24     [mainView addSubview:imageView];
25     
26     NSData *gifData1 = [NSData dataWithContentsOfFile:[[NSBundle mainBundle]
27                                                       pathForResource:@"bbb"
28                                                       ofType:@"gif"]];
29     UIImageView *imageView1 = [UIImageView imageViewWithGIFData:gifData1];
30     imageView1.frame = CGRectMake(90, 0, 100, 100);
31     [mainView addSubview:imageView1];
32     self.view = mainView;
33     
34     UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
35     button.frame = CGRectMake(10, 10, 70, 40);
36     [button setTitle:@"表格测试" forState:UIControlStateNormal];
37     [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
38     [mainView addSubview:button];
39 }
40 
41 -(IBAction) click:(UIButton*) sender{
42     testViewController * detail = [[testViewController alloc] init];
43     detail.hidesBottomBarWhenPushed = YES;
44     
45     detail.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
46     UINavigationController *vd = [[UINavigationController alloc] initWithRootViewController:detail];
47     [vd.navigationBar.topItem setTitle: @"用户注册"];
48     [self presentViewController:vd animated:YES completion:^{}];
49 }
50 @end