This library provides an async image downloader with cache support. For convenience, we added categories for UI elements like
- Categories for
MKAnnotationViewadding web image and cache management
- An asynchronous image downloader
- An asynchronous memory + disk image caching with automatic cache expiration handling
- A background image decompression
- Improved support for animated images
- Customizable and composable transformations can be applied to the images right after download
- Custom cache control
- Expand the image loading capabilites by adding your own custom loaders or using prebuilt loaders like FLAnimatedImage plugin or Photos Library plugin
- Loading indicators
- 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
- Use GCD and ARC
Supported Image Formats
- Image formats supported by UIImage (JPEG, PNG, ...), including GIF
- WebP format, including animated WebP (use the
- iOS 8.0 or later
- tvOS 9.0 or later
- watchOS 2.0 or later
- macOS 10.10 or later
- Xcode 9.0 or later
- For iOS 7, macOS 10.9 or Xcode < 8, use any 4.x version up to 4.3.3
- For macOS 10.8, use any 4.x version up to 4.3.0
- For iOS 5 and 6, use any 3.x version up to 3.7.6
- For iOS < 5.0, please use the last 2.0 version.
- Read this Readme doc
- Read the How to use section
- Read the Documentation @ CocoaDocs
- Try the example by downloading the project from Github or even easier using CocoaPods try
pod try SDWebImage
- Read the Installation Guide
- Read the SDWebImage 5.0 Migration Guide to get an idea of the changes from 4.x to 5.x
- Read the SDWebImage 4.0 Migration Guide to get an idea of the changes from 3.x to 4.x
- Read the Common Problems to find the solution for common problems
- Go to the Wiki Page for more information such as Advanced Usage
Who Uses It
- Find out who uses SDWebImage and add your app to the list.
- If you need help, use Stack Overflow. (Tag 'sdwebimage')
- If you'd like to ask a general question, use Stack Overflow.
- If you found a bug, open an issue.
- If you have a feature request, open an issue.
- If you want to contribute, submit a pull request.
How To Use
#import <SDWebImage/UIImageView+WebCache.h> ... [imageView sd_setImageWithURL:[NSURL URLWithString:@"http://www.domain.com/path/to/image.jpg"] placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
import SDWebImage imageView.sd_setImage(with: URL(string: "http://www.domain.com/path/to/image.jpg"), placeholderImage: UIImage(named: "placeholder.png"))
- For details about how to use the library and clear examples, see The detailed How to use
Animated Images (GIF) support
In 5.0, we introduced a brand new mechanism for supporting animated images. This includes animated image loading, rendering, decoding, and also supports customizations (for advanced users).
This animated image solution is available for
SDAnimatedImage is subclass of
SDAnimatedImageView is subclass of
UIImageView/NSImageView, to make them compatible with the common frameworks APIs. See Animated Image for more detailed information.
FLAnimatedImage integration has its own dedicated repo
In order to clean up things and make our core project do less things, we decided that the
FLAnimatedImage integration does not belong here. From 5.0, this will still be available, but under a dedicated repo SDWebImageFLPlugin.
There are three ways to use SDWebImage in your project:
- using CocoaPods
- using Carthage
- by cloning the project into your repository
Installation with CocoaPods
platform :ios, '7.0' pod 'SDWebImage', '~> 4.0'
If you are using Swift, be sure to add
use_frameworks! and set your target to iOS 8+:
platform :ios, '8.0' use_frameworks!
There are 3 subspecs available now:
WebP (this means you can install only some of the SDWebImage modules. By default, you get just
Core, so if you need
WebP, you need to specify it).
Installation with Carthage (iOS 8+)
Carthage is a lightweight dependency manager for Swift and Objective-C. It leverages CocoaTouch modules and is less invasive than CocoaPods.
To install with carthage, follow the instruction on Carthage
Installation by cloning the repository
- see Manual install
Import headers in your source files
In the source files where you need to use the library, import the header file:
At this point your workspace should build without error. If you are having problem, post to the Issue and the community can help you solve it.
All source code is licensed under the MIT License.