原文: http://blog.csdn.net/xiazailushang/article/details/9716043
在iOS开发中不可避免的会用到一些第三方类库,它们提供了很多实用的功能,使我们的开发变得更有效率;同时,也可以从它们的源代码中学习到很多有用的东西。
Reachability 检测网络连接
用来检查网络连接是否可用:包括WIFI和WWAN(3G/EDGE/CDMA等)两种工作模式。
现在有更好的替代品:https://github.com/tonymillion/Reachability,比Apple提供的兼容性更好,而且更加好用,更具体的使用方法请看它提供的例子。
- <font color="rgb(51, 51, 51)">Reachability* reach = [Reachability reachabilityWithHostname:@"www.google.com"];
- reach.reachableBlock = ^(Reachability*reach) {
- NSLog(@"网络可用!");
- };
- reach.unreachableBlock = ^(Reachability*reach) {
- NSLog(@"网络不可用!");
- };
- // 开始监听
- [reach startNotifier];</font>
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ASIHTTPRequest 网络请求ASIHTTPRequest是对CFNetwork API的一个包装,它提供了一套更加简洁的API,使用起来也更加简单。
官方网站:http://allseeing-i.com/ASIHTTPRequest/
GitHub:https://github.com/pokeb/asi-http-request
它不仅仅支持基本的HTTP请求,而且支持基于REST的服务(GET/POST/PUT/DELETE)。最让人喜欢的是,它支持block语法:
- NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"];
- __block ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
- [request setCompletionBlock:^{
- // Use when fetching text data
- NSString *responseString = [request responseString];
- // Use when fetching binary data
- NSData *responseData = [request responseData];
- }];
- [request setFailedBlock:^{
- NSError *error = [request error];
- }];
- [request startAsynchronous];
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它的ASIFormDataRequest子类可以横容易的提交表单数据和文件:
- ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];
- [request setPostValue:@"Ben" forKey:@"first_name"];
- [request setPostValue:@"Copsey" forKey:@"last_name"];
- // Upload a file on disk
- [request setFile:@"/Users/ben/Desktop/ben.jpg" withFileName:@"myphoto.jpg" andContentType:@"image/jpeg"
- forKey:@"photo"];
- // Upload an NSData instance
- [request setData:imageData withFileName:@"myphoto.jpg" andContentType:@"image/jpeg" forKey:@"photo"];
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详细的使用方法请下载相应的源代码及例子,或者从官方的使用说明http://allseeing-i.com/ASIHTTPRequest/How-to-use开始。
MBProgressHUD 提示效果支持各种状态加载的提示效果,以及带进度的提示效果。
GitHub:https://github.com/matej/MBProgressHUD
一般会在.m文件实现MBProgressHUDDelegate协议,并声明HUD变量:
- @interface SampleViewController ()<MBProgressHUDDelegate>
- {
- MBProgressHUD *HUD;
- }
- #pragma mark -
- #pragma mark MBProgressHUDDelegate methods
- - (void)hudWasHidden:(MBProgressHUD *)hud {
- // Remove HUD from screen when the HUD was hidded
- [HUD removeFromSuperview];
- HUD = nil;
- }
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在执行某个异步请求时开始调用:
- HUD = [MBProgressHUD showHUDAddedTo:self.webView animated:YES];
- HUD.labelText = @"正在请求...";
- // mode参数可以控制显示的模式
- //HUD.mode = MBProgressHUDModeText;
- HUD.delegate = self;
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请求完成时隐藏提示效果:
- [HUD hide:YES];
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对于同步方法一般都是用showWhileExecuting方法,方法执行完成之后会自动隐藏提示效果:
- [HUD showWhileExecuting:@selector(myTask) onTarget:self withObject:nil animated:YES];
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SVProgressHUD 提示效果
GitHub:https://github.com/samvermette/SVProgressHUD
SVProgressHUD和MBProgressHUD效果差不多,不过不需要使用协议,同时也不需要声明实例。直接通过类方法进行调用即可:
- [SVProgressHUD method]
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可以使用以下方法来显示状态:
- + (void)show;
- + (void)showWithMaskType:(SVProgressHUDMaskType)maskType;
- + (void)showWithStatus:(NSString*)string;
- + (void)showWithStatus:(NSString*)string maskType:(SVProgressHUDMaskType)maskType;
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如果需要明确的进度,则使用以下方法:
- + (void)showProgress:(CGFloat)progress;
- + (void)showProgress:(CGFloat)progress status:(NSString*)status;
- + (void)showProgress:(CGFloat)progress status:(NSString*)status maskType:(SVProgressHUDMaskType)maskType;
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通过dismiss方法来隐藏提示:
- + (void)dismiss;
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另外提供了以下方法用于显示状态,并在1秒后自动隐藏提示(使用的图标来源于Glyphish:http://www.glyphish.com/):
- + (void)showSuccessWithStatus:(NSString*)string;
- + (void)showErrorWithStatus:(NSString *)string;
- + (void)showImage:(UIImage*)image status:(NSString*)string; // use 28x28 white pngs
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ZAActivityBar 提示效果
GitHub:https://github.com/zacaltman/ZAActivityBar
ZAActivityBar和SVProgressHUD非常相似,它提供了更加简洁的API来显示提示效果。ZAActivityBar使用的动画效果来源于ZKBounceAnimation(https://github.com/khanlou/SKBounceAnimation),成功、失败的状态图标来源于Pictos(http://pictos.cc/)。显示加载状态:
- [ZAActivityBar showWithStatus:@"加载中..."];
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显示成功、失败状态:
- [ZAActivityBar showSuccessWithStatus:@"成功!"];
- [ZAActivityBar showErrorWithStatus:@"失败!"];
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隐藏提示:
- [ZAActivityBar dismiss];
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SBJson JSON解析官方: http://sbjson.org/
GitHub:https://github.com/stig/json-framework
API使用起来稍显繁琐,特别是初始化的时候:
- @interface TestViewController ()<SBJsonStreamParserAdapterDelegate> {
- SBJsonStreamParser *parser;
- SBJsonStreamParserAdapter *adapter;
- }
- // 冗长的初始化方法足以吓到一大片人
- - (void)initSBJSON
- {
- // We don't want *all* the individual messages from the
- // SBJsonStreamParser, just the top-level objects. The stream
- // parser adapter exists for this purpose.
- adapter = [[SBJsonStreamParserAdapter alloc] init];
- // Set ourselves as the delegate, so we receive the messages
- // from the adapter.
- adapter.delegate = self;
- // Create a new stream parser..
- parser = [[SBJsonStreamParser alloc] init];
- // .. and set our adapter as its delegate.
- parser.delegate = adapter;
- // Normally it's an error if JSON is followed by anything but
- // whitespace. Setting this means that the parser will be
- // expecting the stream to contain multiple whitespace-separated
- // JSON documents.
- parser.supportMultipleDocuments = YES;
- }
- #pragma mark SBJsonStreamParserAdapterDelegate methods
- - (void)parser:(SBJsonStreamParser *)parser foundArray:(NSArray *)array {
- [NSException raise:@"unexpected" format:@"Should not get here"];
- }
- - (void)parser:(SBJsonStreamParser *)parser foundObject:(NSDictionary *)dict {
- NSLog(@"SBJson parser foundObject");
- // 处理返回的数据
- }
- // 使用ASIHTTPRequest请求测试
- - (void) loadData {
- __block ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url];
- [request setRequestMethod:@"POST"];
- [request setCompletionBlock:^{
- // Use when fetching text data
- //NSString *responseString = [request responseString];
- // Use when fetching binary data
- NSData *responseData = [request responseData];
- NSLog(@"Connection didReceiveData of length: %u", responseData.length);
- // Parse the new chunk of data. The parser will append it to
- // its internal buffer, then parse from where it left off in
- // the last chunk.
- SBJsonStreamParserStatus status = [parser parse:responseData];
- if (status == SBJsonStreamParserError) {
- NSLog(@"Parser error: %@", parser.error);
- } else if (status == SBJsonStreamParserWaitingForData) {
- NSLog(@"Parser waiting for more data");
- }
- }];
- [request setFailedBlock:^{
- NSError *error = [request error];
- NSLog(@"failed - %@ %@", [error localizedDescription], error);
- }];
- [request startAsynchronous];
- }
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JSONKit JSON解析
GitHub:https://github.com/johnezang/JSONKit
提供比SBJson更优异的性能以及更加简便的使用方法,但是中文最好使用utf-8格式(\uXXXX),否则容易造成乱码。API调用起来非常简单,省去了SBJson那么一大堆的方法:
- JSONDecoder* decoder = [[JSONDecoder alloc] initWithParseOptions:JKParseOptionNone];
- id result = [decoder objectWithData:jsonData];
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详细的使用方法请看它的GitHub主页。
SDWebImage 图片异步加载及缓存
SDWebImage用于异步下载网络上的图片,并支持对图片的缓存等。多数情况下是使用UIImageView+WebCache为UIImageView异步加载图片:
- #import <SDWebImage/UIImageView+WebCache.h>
- // ...
- [cell.imageView setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"]
- placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
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需要注意的是,pladeholderImage的大小一定要大于UIImageView的大小,否则可能不显示placeholderImage图片。它还支持block语法用于在加载完成时做一些操作:
- [cell.imageView setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"]
- placeholderImage:[UIImage imageNamed:@"placeholder.png"]
- completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) {... completion code here ...}];
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SDWebImage并不局限于UIImageView上,使用SDWebImageManager完成更多的操作:
- SDWebImageManager *manager = [SDWebImageManager sharedManager];
- [manager downloadWithURL:imageURL
- options:0
- progress:^(NSUInteger receivedSize, long long expectedSize)
- {
- // 下载进度
- }
- completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType)
- {
- if (image)
- {
- // 下载完成
- }
- }];
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或者使用Image Downloader也是一样的效果:
- [SDWebImageDownloader.sharedDownloader downloadImageWithURL:imageURL
- options:0
- progress:^(NSUInteger receivedSize, long long expectedSize)
- {
- // 进度
- }
- completed:^(UIImage *image, NSData *data, NSError *error, BOOL finished)
- {
- if (image && finished)
- {
- // 下载完成
- }
- }];
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UIActivityIndicator-for-SDWebImage 为SDWebImage显示加载效果
GitHub:https://github.com/JJSaccolo/UIActivityIndicator-for-SDWebImage
用于为SDWebImage在UIImageView加载图片时,显示加载效果(UIActivityIndicatorView实现),它提供以下方法:
- - (void)setImageWithURL:(NSURL *)url usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle;
- - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder options:(SDWebImageOptions)options
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle; - - (void)setImageWithURL:(NSURL *)url
completed:(SDWebImageCompletedBlock)completedBlock
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder completed:(SDWebImageCompletedBlock)completedBlock
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder options:(SDWebImageOptions)options
completed:(SDWebImageCompletedBlock)completedBlock
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder options:(SDWebImageOptions)options
progress:(SDWebImageDownloaderProgressBlock)progressBlock
completed:(SDWebImageCompletedBlock)completedBlock
usingActivityIndicatorStyle:(UIActivityIndicatorViewStyle)activityStyle;
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UIImage+Resize 调整图片大小
GitHub:https://github.com/coryalder/UIImage_Resize
提供多种方法为图片设置透明度、圆角、裁剪、调整大小等:
- - (UIImage *)imageWithAlpha;
- - (UIImage *)transparentBorderImage:(NSUInteger)borderSize;
- - (UIImage *)roundedCornerImage:(NSInteger)cornerSize borderSize:(NSInteger)borderSize;
- - (UIImage *)croppedImage:(CGRect)bounds;
- - (UIImage *)thumbnailImage:(NSInteger)thumbnailSize
- transparentBorder:(NSUInteger)borderSize
- cornerRadius:(NSUInteger)cornerRadius
- interpolationQuality:(CGInterpolationQuality)quality;
- - (UIImage *)resizedImage:(CGSize)newSize
- interpolationQuality:(CGInterpolationQuality)quality;
- - (UIImage *)
- resizedImageWithContentMode:(UIViewContentMode)contentMode
- bounds:(CGSize)bounds
- interpolationQuality:(CGInterpolationQuality)quality;
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更详细使用见:http://vocaro.com/trevor/blog/2009/10/12/resize-a-uiimage-the-right-way/
ImageCacheResize 异步加载图片、缓存及调整大小
GitHub:https://github.com/toptierlabs/ImageCacheResize
整合了SDWebImage和UIImage+Resize的功能,用于图片的异步加载、缓存、以及下载完成后调整大小并显示在UIImageView上。提供了以下API用于加载图片以及加载完成后调整图片大小:
- - (void)setImageWithURL:(NSURL *)url andCropToBounds:(CGRect)bounds;
- - (void)setImageWithURL:(NSURL *)url andResize:(CGSize)size withContentMode:(UIViewContentMode)mode;
- - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage *)placeholder andCropToBounds:(CGRect)bounds;
- - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder
options:(SDWebImageOptions)options andResize:(CGSize)size; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder options:(SDWebImageOptions)options andResize:(CGSize)size
withContentMode:(UIViewContentMode)mode; - - (void)setImageWithURL:(NSURL *)url placeholderImage:(UIImage
*)placeholder
options:(SDWebImageOptions)options andCropToBounds:(CGRect)bounds;
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使用方法和SDWebImage一样简单,如以下官方例子:
- [imageview setImageWithURL:[NSURL
URLWithString:@"http://t0.gstatic.com/images?q=tbn:ANd9GcQfraHpiabjEY8iDdBe9OUQYHMtwfuAv9ZRR0RYKuoVF_EpE8Fp5A"]
andResize:CGSizeMake(30, 30)
withContentMode:UIViewContentModeScaleAspectFit]; // 按比例缩放 - [imageview setImageWithURL:[NSURL
URLWithString:@"http://t0.gstatic.com/images?q=tbn:ANd9GcQfraHpiabjEY8iDdBe9OUQYHMtwfuAv9ZRR0RYKuoVF_EpE8Fp5A"]
andCropToBounds:CGRectMake(0, 0, 100, 100)]; // 裁剪成100x100大小
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EGOTableViewPullRefresh 下拉刷新
GitHub:https://github.com/enormego/EGOTableViewPullRefresh
这是最早出现的为UITableView提供下拉刷新功能的类库,使用起来稍显麻烦,需要实现诸多协议(代码取自官方DEMO):
- #import "EGORefreshTableHeaderView.h"
- @interface RootViewController :
UITableViewController <EGORefreshTableHeaderDelegate,
UITableViewDelegate, UITableViewDataSource>{ - EGORefreshTableHeaderView *_refreshHeaderView;
- // 是否正在加载中
- BOOL _reloading;
- }
- - (void)viewDidLoad {
- [super viewDidLoad];
- if (_refreshHeaderView == nil) {
- EGORefreshTableHeaderView *view = [[EGORefreshTableHeaderView alloc]
initWithFrame:CGRectMake(0.0f, 0.0f -
self.tableView.bounds.size.height, self.view.frame.size.width,
self.tableView.bounds.size.height)]; - view.delegate = self;
- [self.tableView addSubview:view];
- _refreshHeaderView = view;
- [view release];
- }
- // 更新最后加载时间
- [_refreshHeaderView refreshLastUpdatedDate];
- }
- #pragma mark -
- #pragma mark Data Source Loading / Reloading Methods
- - (void)reloadTableViewDataSource{
- // 在这里加入代码用于获取数据
- _reloading = YES;
- }
- - (void)doneLoadingTableViewData{
- // 数据加载完成时调用这个方法
- _reloading = NO;
- [_refreshHeaderView egoRefreshScrollViewDataSourceDidFinishedLoading:self.tableView];
- }
- #pragma mark -
- #pragma mark UIScrollViewDelegate Methods
- - (void)scrollViewDidScroll:(UIScrollView *)scrollView{
- [_refreshHeaderView egoRefreshScrollViewDidScroll:scrollView];
- }
- - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
- [_refreshHeaderView egoRefreshScrollViewDidEndDragging:scrollView];
- }
- #pragma mark -
- #pragma mark EGORefreshTableHeaderDelegate Methods
- - (void)egoRefreshTableHeaderDidTriggerRefresh:(EGORefreshTableHeaderView*)view{
- [self reloadTableViewDataSource];
- [self performSelector:@selector(doneLoadingTableViewData) withObject:nil afterDelay:3.0];
- }
- - (BOOL)egoRefreshTableHeaderDataSourceIsLoading:(EGORefreshTableHeaderView*)view{
- return _reloading; // should return if data source model is reloading
- }
- - (NSDate*)egoRefreshTableHeaderDataSourceLastUpdated:(EGORefreshTableHeaderView*)view{
- return [NSDate date]; // should return date data source was last changed
- }
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PullToRefresh 下拉刷新
GitHub:https://github.com/leah/PullToRefresh
PullToRefresh提供比EGOTableViewPullRefresh更加简单的使用方法,只要继承自PullRefreshTableViewController,再实现refresh方法即可:
- - (void)refresh {
- // 加载数据
- [self.tableView reloadData]; // 重新载入UITableView
- [self stopLoading]; //停止动画
- }
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STableViewController 下拉刷新、上拉加载更多
GitHub:https://github.com/shiki/STableViewController
STableViewController比PullToRefresh多了一个上拉加载更多功能,使用上也差不多简单,需要继承自STableViewController,再实现一些方法:
- - (void) viewDidLoad
- {
- [super viewDidLoad];
- self.title = @"STableViewController Demo";
- [self.tableView setBackgroundColor:[UIColor lightGrayColor]];
- // 需要创建两个自定义视图用于显示"下拉刷新"、"上拉加载更多"
- self.headerView = headerView;
- self.footerView = footerView;
- }
- #pragma mark - Pull to Refresh
- - (void) pinHeaderView
- {
- [super pinHeaderView];
- // 下拉刷新视图显示一些加载动画
- }
- - (void) unpinHeaderView
- {
- [super unpinHeaderView];
- // 下拉刷新视图停止动画
- }
- - (void) headerViewDidScroll:(BOOL)willRefreshOnRelease scrollView:(UIScrollView *)scrollView
- {
- // 下拉刷新视图显示状态信息
- if (willRefreshOnRelease)
- //hv.title.text = @"松开后刷新...";
- else
- //hv.title.text = @"下拉刷新...";
- }
- - (BOOL) refresh
- {
- if (![super refresh])
- return NO;
- // 下拉刷新加载数据
- [self performSelector:@selector(addItemsOnTop) withObject:nil afterDelay:2.0];
- return YES;
- }
- #pragma mark - Load More
- - (void) willBeginLoadingMore
- {
- // 上拉加载更多视图加载动画
- }
- - (void) loadMoreCompleted
- {
- [super loadMoreCompleted];
- // 上拉加载更多视图停止动画
- if (!self.canLoadMore) {
- //没有更多数据的时候执行代码...
- }
- }
- - (BOOL) loadMore
- {
- if (![super loadMore])
- return NO;
- // 上拉加载更多数据
- [self performSelector:@selector(addItemsOnBottom) withObject:nil afterDelay:2.0];
- return YES;
- }
- //
- - (void) addItemsOnTop
- {
- // 加载数据...
- [self.tableView reloadData];
- // 数据加载完成通知上拉视图
- [self refreshCompleted];
- }
- - (void) addItemsOnBottom
- {
- // 加载更多数据...
- [self.tableView reloadData];
- // 通过判断设置是否可以加载更多
- //self.canLoadMore = NO;
- // 数据加载完成通知下拉视图
- [self loadMoreCompleted];
- }
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SVPullToRefresh 下拉刷新、上拉加载更多
GitHub:https://github.com/samvermette/SVPullToRefresh
包含SVPullToRefresh + SVInfiniteScrolling为UITableView提供下拉刷新、上拉加载更多功能。使用起来也相当简单,只要在UITableViewController里实现以下方法:
- - (void)viewDidLoad {
- [super viewDidLoad];
- __weak SVViewController *weakSelf = self;
- // 设置下拉刷新
- [self.tableView addPullToRefreshWithActionHandler:^{
- [weakSelf insertRowAtTop];
- }];
- // 设置上拉加载更多
- [self.tableView addInfiniteScrollingWithActionHandler:^{
- [weakSelf insertRowAtBottom];
- }];
- }
- - (void)viewDidAppear:(BOOL)animated {
- [tableView triggerPullToRefresh];
- }
- - (void)insertRowAtTop {
- // 获取数据....
- // 停止动画
- [self.tableView.pullToRefreshView stopAnimating];
- }
- - (void)insertRowAtBottom {
- // 获取数据....
- // 停止动画
- [weakSelf.tableView.infiniteScrollingView stopAnimating];
- }
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CMPopTipView 提示信息
GitHub:https://github.com/chrismiles/CMPopTipView
CMPopTipView用于在一些视图上显示提示信息:
- self.tipView = [[CMPopTipView alloc] initWithMessage:@"提示消息"];
- self.tipView.delegate = self;
- [self.tipView presentPointingAtView:anyButton inView:self.view animated:YES]; // 点击按钮显示
- [self.tipView presentPointingAtBarButtonItem:barButtonItem animated:YES]; // 点击导航栏按钮显示
- #pragma mark CMPopTipViewDelegate methods
- - (void)popTipViewWasDismissedByUser:(CMPopTipView *)popTipView {
- // 清理资源
- self.tipView = nil;
- }
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PrettyKit
GitHub:https://github.com/vicpenap/PrettyKit
定制了一些UI组件如UITableViewCell、UINavigationBar、UITabBar、UIToolBar等,比系统自带的更加美观。
MGBox2
GitHub:https://github.com/sobri909/MGBox2
提供一些定制的UI组件可以更简单
快速的创建表格、网格布局,以及丰富的文本呈现,基于block的事件机制等,包含:MGBox、MGTableBox、
MGTableBoxStyled、MGScrollView、MGButton、MGEvents、MGEasyFrame、MGLine等,其中
MGBox还支持screenshot方法用于截图。
Nimbus
GitHub:https://github.com/jverkoey/nimbus
著名的框架,提供了一套非常丰富的UI组件,可以使开发变得更加简单、有效率。
FlatUIKit
GitHub:https://github.com/Grouper/FlatUIKit
扁平化设计的UI组件,类似于WP或者iOS7的风格。
MUKMediaGallery
GitHub:https://github.com/muccy/MUKMediaGallery
媒体库效果,支持图片、视频及音频。
PTShowcaseViewController
GitHub:https://github.com/exalted/PTShowcaseViewController
同样是一个媒体库效果,支持的格式更多,包括:图片、视频、PDF等.
MWPhotoBrowser
GitHub:https://github.com/mwaterfall/MWPhotoBrowser
图片展示效果,支持本地及远程的图片,使用也比较简单,只要实现MWPhotoBrowserDelegate协议:
- @interface TestViewController ()<MWPhotoBrowserDelegate>
- {
- NSArray *_photos;
- }
- -(void) doAction {
- NSMutableArray *photos = [[NSMutableArray alloc] init];
- for (...) {
- MWPhoto* photo = [MWPhoto photoWithURL:[NSURL URLWithString:url]]; // 设置图片地址
- photo.caption = description; // 设置描述
- [photos addObject:photo];
- }
- _photos = photos;
- MWPhotoBrowser *browser = [[MWPhotoBrowser alloc] initWithDelegate:self];
- browser.displayActionButton = YES;
- UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:browser];
- nc.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
- [self presentModalViewController:nc animated:YES];
- }
- #pragma mark - MWPhotoBrowserDelegate
- - (NSUInteger)numberOfPhotosInPhotoBrowser:(MWPhotoBrowser *)photoBrowser {
- return _photos.count;
- }
- - (MWPhoto *)photoBrowser:(MWPhotoBrowser *)photoBrowser photoAtIndex:(NSUInteger)index {
- if (index < _photos.count)
- return [_photos objectAtIndex:index];
- return nil;
- }
复制代码
ios-image-filters
GitHub:https://github.com/esilverberg/ios-image-filters提供多种图片滤镜效果。
PDF Reader Core for iOS
GitHub:https://github.com/vfr/Reader
PDF阅读器核心。
DTCoreText
GitHub:https://github.com/Cocoanetics/DTCoreText
支持富文本的显示如HTML。
FTCoreText
GitHub:https://github.com/FuerteInternational/FTCoreText
富文本视图
CoreTextWrapper
GitHub:https://github.com/akosma/CoreTextWrapper
支持多列的文本视图
Base64
GitHub:https://github.com/nicklockwood/Base64
提供对字符串的Base64编码
RNCryptor
GitHub:https://github.com/rnapier/RNCryptor提供AES加密方法