Provide an async draw view component for iOS, to be your application run so fast.
- Swift Package Manage:
Xcode-> File-> Add Packages-> Input url-> https://github.com/mcry416/AsyncDrawKit, and waiting for fetch the base.
- Load the source code manually:
Drag the root folder into yout project directly.
- Use it as UIKit easily:
import AsyncDrawKit
let imageView = AsyncImageView()
// set local image
imageView.image = UIImage(named: "background_image")
// set network image
imageView.sg_setImage("https://www.test.com/test.jpg")
// use the way of downsample to set local image(Bundle image)
imageView.imageNamed = "background_image"
AsyncImageView: Provide a view that look likesUIImageViewto load image.
The following table is a comparison between the two.
AsyncImageView |
UIImageView |
|
|---|---|---|
| set local image | support | support |
| set network image | support | n/a |
| decode speed | fast | medium |
| stable memory consume | low | high |
| peak memory consume | high | medium |
| image cache | support | support |
| resolving power | auto-fit / full resolution | full resolution |
NodeRootView: Provide an async draw container to load various basic visual components.
The following table was feature decribtion.
| Layout | Event | Function | |
|---|---|---|---|
| NodeView | only frame | support | provide a view container |
| NodeLabel | only frame | support | provide a view to show text |
| NodeButton | only frame | support | provide a contianer to action event |
| NodeImageView | only frame | support | provide a view to show image |
- Memory cache and mange.
You can set the cache strategy manually, or clear the cache in memory.
- Others: Some functions waiting for yout to discovery.
- iOS 11+
- Swift 5.0+
- The size over
1920 * 1080for JPEG photos of 3 in UITableView,AsyncImageViewis better performance thanUIImageViewin memory consume.
Compare
Property |
Performance |
Explain |
|---|---|---|
| AsyncImageView.image |  |
stable memory is lowest |
| AsyncImageView.imageNamed |  |
stable memory is less than UIImageView but high than AsyncImageView.image, however, this is a repeat image source test. |
| UIImageView.image |  |
stable memory is highest. Surprisingly, CPU resource consumption is also high |
In fact, the real business scene is that image sources are abundant and non repetitive. Therefore, UIImage caching will be a burden, but AsyncImageView.image will perform well.
- It may not perform as well as
UIImageViewat lower image resolutions. - Do not support Objective-C environment , but you can edit the concrete class to add
ObjcMembersto use it, it do not have any matter. - The reusable strategy for
AsyncImageViewhas some problems in Cell when set a network image
- Any question or suggestions mail to me at: mcry416@outlook.com
AsyncDrawKit is released under the MIT license.