本文简略剖析下 ZLPhotoBrowser 的源代码,

其间的图片旋转,运用的是 ZLClipImageViewController

ZLPh动画大放映otoBrowser 代码比较绕,github永久回家地址很有意思

特征:

大部分封装的功用控制器,运用的进口是 ZLPhotoPreviewSheet

破例:

图片预览控制器, 运用 ZLImagePr动画片小猪佩奇eviewController,可方便地直接调用

照相机,运用 ZLCustomCamera,可方便地直接调用

1.1 , 图片旋转控制器的官方调用流程

先进入预览界面

ZLPhgithub直播平台永久回家otoPreviewSheet 类里边,

func showPregiteeviewController(_ mAPPodels: [ZLPhotoModel]github中文官网网页, index: Int) {动画片汪汪队
let vc = ZLPhotoPreviewControlle动画r(photos: models, index: index)
let nav = self.gapp是什么意思etIma动画片汪汪队geNav(rootViewController: vc)
// ...
self.sender?.showDetaiGitHublViewContGitroller(nav, sender: nil)
}

预览界github敞开私库面,进入批改界面, ZLEditImageViewController


func showEditImageVC(image: UIImage) {
let model = self.argithub永久回家地址rDataSources[self.currentIndex]
let nav = self.navigationappreciateController as! ZLImageNavController
ZLEditImageViewController.showEditImageVC(parentVC: self, image: image, editModel: model.editImageModel) { [weak self, weak nav] (ei, editImageModel) in
// ...
}
}

批改界面, 进入旋转界面 ZLClipImageViewController

1.1.1 , 预览界面,进入旋转界面, ZLClipImageViewController

简略调整下,官方的代码

ZLEditIgithub敞开私库mageV动画图片头像iewController 类里边,

 @appointmentobjc public class fun动画专业c showEditImageVC(parentVC: UIViewController?github打不开, animate: Bool = false, image: UIImage, editModel: ZLEditImageModel? = nil, completionX: ( (UIImage, ZLEditImageModel?) -> Void )? ) {
let vc = ZLClipImageViewController(image: image, editRect: editModel?.editRect, angle: editModel?.angle ?? 0, selec动画大放映tRatio: editModegitil?.selectRatio)
// ...
vc.animate = animate
vc.modalPresentationStyle = .fullScreen
parentVC?.present(vc, animated: animate, completion: nil)
}

ZLPhotoBrowser的这段逻动画片猫和老鼠辑,很有特征

ZLEdAPPitImageViewController 什么用,都没有

只是简略的中转一下

1.2 , 直接去批改控制器

ZLPhotoPreviewSgithub官网heet 类里边,

略微调整下

点击 demo 的 ViewController 的,中间的列表的 item

@objc public func previewAssets(segithub下载nder: UIViewController, assets: [PHAsset], index: Int, isgithub是干什么的Origi动画片猫和老鼠nal: Bool, showBottomViewAndSelectBtn: Bool = true) {
let models = assets.removeDuplicate().map { (asset) -> ZLPhotoModel in
let m = ZLgit教程PhGitHubotoModel(asset: asset)
m.isSelected = true
return动画片汪汪队 m
}
self.arrSelectedModels.removeAll()
self.arrSelecte动画专业dModels.append动画片汪汪队(contentsOf: m动画专业odels)
self.sender = sender
self.isSelectOriginal = isOriginal
self.isHigithub永久回家地址ddeAPPn = true
self.sender?.view.addSubview(self)
if arrSelectedModels.count > 0{
shouldDirectEdit(a动画图片头像rrSelectedModels[0])
}
}

进入 ZLEditImageViewController

func shouldDirectEdit(_ model: ZLPhgithub是干什么的otoModegitil) -> Bool {
self.showEditImageVC(modgiti轮胎el: model)apple
return false
}
1.2.1 , 直接去, 图片旋转控制器

略微调整下,上面的代码

直接去 ZLClipImageViewController


func showEditImageVC(model: ZLPhotoModel) {
ZLPhotoManager.fetchImage(for: model.asset, size: model.previewSize) { [weak self] (image, isDegraded)github是干什么的 in
if let image = image {
let editMgithub是干什么的odel = mogithub下载del.editImageModel
let vc = ZLClipImageViewControllapp是什么意思er(image: image, editRect: editModel?.editRect, angle: editModel?.angle ?? 0)
vc.clipDoneB动画片猫和老鼠lockZz = { [weak self]  (angle) in
let ei = image.clipImage(angle) ?? image
let editImageModel = ZLEditImageModel(editRect: CGgit教程Rect.zero动画片猫和老鼠, angle: angle)
model.isSelected动画制造软件 = true
model.edAPPitImage = ei
model.egithub中文官网网页ditImageModel = editImageModel
self?.arrSelectedModels.append(model)
self?.requestSelectPhoto()
}
vc.modalPresentationStyle = .fullScreen
self?.sender?.present(vc, animated: true, completion: nilgit教程)
}
// .git教程..
}
}

图片旋转剖析

ZLClipImageViewController 控制器的

func rotateBtnClick() 方法中,

每一次旋转,都把数据给批改了github敞开私库

self.editImage = self.editImage.rotate(orientation: .left)
// ...
self.imageView.image = self.editIgit教程magegithub下载

这儿的处理,比较重,

常用思路,可以记录旋转的视点,设置 imageView 的 transfrom

需求的时候,再批改数据

利益: 伪动画

这儿的旋转,是改图片数据,从头布局

还创建一个临时的 imageVgithub中文官网网页iew ,做动画

        let transform = CGAffineTransform(rotationAngle: -CGFloat动画制造软件.pi/2)
let animateImageView = UIImag动画片小猪佩奇eView(image: self.editImage)
animateImagappstoreeView.contentMode = .scaleappetiteAspectFit
animateImageView.clipsToBounds = true
view.addSubview(animateImageView)
segiti轮胎lf.containerView.alpha = 0
UIView.animate(withDuration: 0.3, anigithubmations: {
animatgithub是干什么的eImageView.transform = transform
animateImageView.frame = toFrame
}) { (_) in
animateImageView.removeFromSuperview()
self.c动画片猫和老鼠ontagithub下载inerView.alpha = 1
}
翻滚视图署理方法,用的好

funcgithub下载 viewForZoomgithub永久回家地址ing(inGit scrollView: UIScrollView) -> UIView?

可优化

各种布局核算,approach七算八算,绕

没有利用到,AVFoundationAVMakeRectgithub永久回家地址 方法

简化后,去除效果的代码

githgithub中文官网网页ub repo