Web Image
=========
[![Build Status](http://img.shields.io/travis/rs/SDWebImage/master.svg?style=flat)](https://travis-ci.org/rs/SDWebImage)
[![Pod Version](http://img.shields.io/cocoapods/v/SDWebImage.svg?style=flat)](http://cocoadocs.org/docsets/SDWebImage/)
[![Pod Platform](http://img.shields.io/cocoapods/p/SDWebImage.svg?style=flat)](http://cocoadocs.org/docsets/SDWebImage/)
[![Pod License](http://img.shields.io/cocoapods/l/SDWebImage.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0.html)
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[![Reference Status](https://www.versioneye.com/objective-c/sdwebimage/reference_badge.svg?style=flat)](https://www.versioneye.com/objective-c/sdwebimage/references)
[![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/rs/SDWebImage)
This library provides a category for UIImageView with support for remote images coming from the web.
It provides:
- An UIImageView category adding web image and cache management to the Cocoa Touch framework
- An asynchronous image downloader
- An asynchronous memory + disk image caching with automatic cache expiration handling
- Animated GIF support
- WebP format support
- A background image decompression
- A guarantee that the same URL won't be downloaded several times
- A guarantee that bogus URLs won't be retried again and again
- A guarantee that main thread will never be blocked
- Performances!
- Use GCD and ARC
- Arm64 support
NOTE: The version 3.0 of SDWebImage isn't fully backward compatible with 2.0 and requires iOS 5.1.1
minimum deployement version. If you need iOS < 5.0 support, please use the last [2.0 version](https://github.com/rs/SDWebImage/tree/2.0-compat).
[How is SDWebImage better than X?](https://github.com/rs/SDWebImage/wiki/How-is-SDWebImage-better-than-X%3F)
Who Use It
----------
Find out [who uses SDWebImage](https://github.com/rs/SDWebImage/wiki/Who-Uses-SDWebImage) and add your app to the list.
How To Use
----------
API documentation is available at [CocoaDocs - SDWebImage](http://cocoadocs.org/docsets/SDWebImage/)
### Using UIImageView+WebCache category with UITableView
Just #import the UIImageView+WebCache.h header, and call the sd_setImageWithURL:placeholderImage:
method from the tableView:cellForRowAtIndexPath: UITableViewDataSource method. Everything will be
handled for you, from async downloads to caching management.
```objective-c
#import <SDWebImage/UIImageView+WebCache.h>
...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *MyIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:MyIdentifier] autorelease];
}
// Here we use the new provided sd_setImageWithURL: method to load the web image
[cell.imageView sd_setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"]
placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
cell.textLabel.text = @"My Text";
return cell;
}
```
### Using blocks
With blocks, you can be notified about the image download progress and whenever the image retrival
has completed with success or not:
```objective-c
// Here we use the new provided sd_setImageWithURL: method to load the web image
[cell.imageView sd_setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"]
placeholderImage:[UIImage imageNamed:@"placeholder.png"]
completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, NSURL *imageURL) {... completion code here ...}];
```
Note: neither your success nor failure block will be call if your image request is canceled before completion.
### Using SDWebImageManager
The SDWebImageManager is the class behind the UIImageView+WebCache category. It ties the
asynchronous downloader with the image cache store. You can use this class directly to benefit
from web image downloading with caching in another context than a UIView (ie: with Cocoa).
Here is a simple example of how to use SDWebImageManager:
```objective-c
SDWebImageManager *manager = [SDWebImageManager sharedManager];
[manager downloadImageWithURL:imageURL
options:0
progress:^(NSInteger receivedSize, NSInteger expectedSize) {
// progression tracking code
}
completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
if (image) {
// do something with image
}
}];
```
### Using Asynchronous Image Downloader Independently
It's also possible to use the async image downloader independently:
```objective-c
[SDWebImageDownloader.sharedDownloader downloadImageWithURL:imageURL
options:0
progress:^(NSInteger receivedSize, NSInteger expectedSize)
{
// progression tracking code
}
completed:^(UIImage *image, NSData *data, NSError *error, BOOL finished)
{
if (image && finished)
{
// do something with image
}
}];
```
### Using Asynchronous Image Caching Independently
It is also possible to use the async based image cache store independently. SDImageCache
maintains a memory cache and an optional disk cache. Disk cache write operations are performed
asynchronous so it doesn't add unnecessary latency to the UI.
The SDImageCache class provides a singleton instance for convenience but you can create your own
instance if you want to create separated cache namespace.
To lookup the cache, you use the `queryDiskCacheForKey:done:` method. If the method returns nil, it means the cache
doesn't currently own the image. You are thus responsible for generating and caching it. The cache
key is an application unique identifier for the image to cache. It is generally the absolute URL of
the image.
```objective-c
SDImageCache *imageCache = [[SDImageCache alloc] initWithNamespace:@"myNamespace"];
[imageCache queryDiskCacheForKey:myCacheKey done:^(UIImage *image)
{
// image is not nil if image was found
}];
```
By default SDImageCache will lookup the disk cache if an image can't be found in the memory cache.
You can prevent this from happening by calling the alternative method `imageFromMemoryCacheForKey:`.
To store an image into the cache, you use the storeImage:forKey: method:
```objective-c
[[SDImageCache sharedImageCache] storeImage:myImage forKey:myCacheKey];
```
By default, the image will be stored in memory cache as well as on disk cache (asynchronously). If
you want only the memory cache, use the alternative method storeImage:forKey:toDisk: with a negative
third argument.
### Using cache key filter
Sometime, you may not want to use the image URL as cache key because part of the URL is dynamic
(i.e.: for access control purpose). SDWebImageManager provides a way to set a cache key filter that
takes the NSURL as input, and output a cache key NSString.
The fo
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关于安防系统的ios端App.zip (1151个子文件)
libVideoPlaySDK_Build20150717.a 42.21MB
libcrypto.a 13.4MB
libcrypto.a 12.99MB
libVMSNetSDK_build20150126.a 11.94MB
libWeChatSDK.a 9.71MB
libcrpto.a 7.56MB
libXCUtilityStatic.a 6.6MB
libASIHTTPRequest.a 4.83MB
libhpr.a 4.55MB
libmp3lame.a 4.38MB
libMCRSDK.a 4.29MB
libWeChatSDK.a 3.98MB
libssl.a 2.51MB
libssl.a 2.32MB
AlipaySDK 1.98MB
tommath.c 150KB
contents 760B
public_key.der 1KB
safestack.h 180KB
obj_mac.h 133KB
ssl.h 101KB
evp.h 52KB
asn1.h 51KB
lame.h 48KB
ec.h 45KB
VMSNetSDKDataType.h 44KB
ASIHTTPRequest.h 44KB
x509.h 44KB
engine.h 40KB
objects.h 36KB
bn.h 36KB
tls1.h 34KB
bio.h 32KB
x509v3.h 32KB
ts.h 30KB
asn1t.h 29KB
ssl3.h 26KB
VMSNetSDK.h 24KB
symhacks.h 24KB
crypto.h 24KB
ocsp.h 23KB
RSA.h 22KB
x509_vfy.h 22KB
pem.h 21KB
tommath_class.h 20KB
cms.h 19KB
WXApiObject.h 19KB
asn1_mac.h 19KB
des_old.h 18KB
dso.h 18KB
pkcs7.h 18KB
tommath.h 17KB
ui.h 16KB
err.h 15KB
RtspClientSDK.h 15KB
UIButton+WebCache.h 13KB
pkcs12.h 12KB
ACMacros.h 12KB
dsa.h 12KB
VideoPlaySDK.h 11KB
SDWebImageManager.h 11KB
BigInt.h 11KB
des.h 11KB
ssl2.h 11KB
ecdsa.h 10KB
e_os2.h 10KB
CTAssetsPickerController.h 10KB
dh.h 10KB
UIImageView+WebCache.h 10KB
conf.h 10KB
lhash.h 9KB
SDImageCache.h 8KB
dtls1.h 8KB
krb5_asn.h 7KB
sha.h 7KB
ossl_typ.h 7KB
SDWebImageDownloader.h 7KB
srtp.h 6KB
opensslconf.h 6KB
kssl.h 6KB
URBMediaFocusViewController.h 6KB
seed.h 6KB
modes.h 5KB
rand.h 5KB
aes.h 5KB
config.h 5KB
srp.h 5KB
ASICacheDelegate.h 5KB
blowfish.h 5KB
UIImageView+HighlightedWebCache.h 5KB
camellia.h 5KB
md5.h 5KB
md4.h 5KB
ecdh.h 5KB
buffer.h 5KB
ASINetworkQueue.h 5KB
CommonMacro.h 5KB
WXApi.h 4KB
cast.h 4KB
idea.h 4KB
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