• iOS开发常用的第三方类库


    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。

    可以从Apple网站下载到:http://developer.apple.com/library/ios/#samplecode/Reachability/History/History.html#//apple_ref/doc/uid/DTS40007324-RevisionHistory-DontLinkElementID_1

    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。

    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];

    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];

    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"];

    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;
    }

    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;

    请求完成时隐藏提示效果:

    [HUD hide:YES];

    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];

    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]

    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;

    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;

    通过dismiss方法来隐藏提示:

    + (void)dismiss;

    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

    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..."];

    显示成功、失败状态:

    [ZAActivityBar showSuccessWithStatus:@"成功!"];
    [ZAActivityBar showErrorWithStatus:@"失败!"];

    隐藏提示:

    [ZAActivityBar dismiss];

    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];
    }

    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];

    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"]];

    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 ...}];

    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
                         }
                     }];

    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
               }
           }];

    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;

    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;

    更详细使用见:http://vocaro.com/trevor/blog/2009/10/12/resize-a-uiimage-the-right-way/

    注意:这种方法调整图片大小有可能会产生图片模糊失真问题(因为不同设备的scale导致)

    这里有一个更简单的方法(http://stackoverflow.com/questions/6141298/how-to-scale-down-a-uiimage-and-make-it-crispy-sharp-at-the-same-time-instead):

    - (UIImage *)resizeImage:(UIImage*)image newSize:(CGSize)newSize {
        CGRect newRect = CGRectIntegral(CGRectMake(0, 0, newSize.width, newSize.height));
        CGImageRef imageRef = image.CGImage;
    
        UIGraphicsBeginImageContextWithOptions(newSize, NO, 0);
        CGContextRef context = UIGraphicsGetCurrentContext();
    
        // Set the quality level to use when rescaling
        CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
        CGAffineTransform flipVertical = CGAffineTransformMake(1, 0, 0, -1, 0, newSize.height);
    
        CGContextConcatCTM(context, flipVertical);  
        // Draw into the context; this scales the image
        CGContextDrawImage(context, newRect, imageRef);
    
        // Get the resized image from the context and a UIImage
        CGImageRef newImageRef = CGBitmapContextCreateImage(context);
        UIImage *newImage = [UIImage imageWithCGImage:newImageRef];
    
        CGImageRelease(newImageRef);
        UIGraphicsEndImageContext();    
    
        return newImage;
    }

    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;

    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

    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
    }

    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
    }

    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];
    }

    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];
    }

    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;
    }

    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;
    }

    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

  • 相关阅读:
    常见Oracle HINT的用法
    2011年的每一天是周几?
    TOM上关于JOIN跟+号的讨论
    关于index_ffs使用索引的一点问题.
    数据库中分组字符串相加
    国服3.3.5:死亡骑士全系DPS饰品收益评分
    WLK狂暴战怎么玩
    3.3萨满手册
    关于clob类型在函数中的处理。
    pivot_clause [Oracle SQL]
  • 原文地址:https://www.cnblogs.com/lwme/p/ios-third-party-libraries.html
Copyright © 2020-2023  润新知