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iOS开发常用的第三方类库

2015-10-13 22:02 549 查看
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。

DDMenuControllers 侧边菜单

fmdb 数据库

GData XML解析

JSON json解析

MD5 加密

umeng 友盟

BaiduMap 百度地图



MJRefresh 下拉刷新

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。

<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
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