直接上图
安装
仓库地址：https://github.com/MxABC/swiftScan
按照readme里的说明用pod安装没法用，不知道啥原因，所以只能手动安装了，把项目里的Source源码拷贝到自己新建的项目里即可
开发主界面
主界面就一个按钮，点击来调用扫码界面的
var button = UIButton(type: UIButtonType.roundedRect)
var resultLabel = UILabel()
override func viewDidLoad() {
super.viewDidLoad()
self.title = "ScanQrCodeDemo"
self.view.backgroundColor = .white
self.button.setTitle("Scan QR Code", for: .normal)
self.button.setTitleColor(.black, for: .normal)
self.button.layer.borderColor = UIColor.lightGray.cgColor
self.button.layer.borderWidth = 1
self.button.layer.cornerRadius = 5
self.button.layer.masksToBounds = true
self.button.contentEdgeInsets = UIEdgeInsets(top: 5, left: 10, bottom: 5, right: 10)
// 给按钮添加点击事件
self.button.addTarget(self, action: #selector(ViewController.click), for: UIControlEvents.touchUpInside)
self.view.addSubview(self.button)
self.view.addSubview(self.resultLabel)
// 添加依赖
self.button.snp.makeConstraints { (make) in
make.centerX.equalToSuperview()
make.centerY.equalToSuperview()
}
self.resultLabel.snp.makeConstraints { (make) in
make.centerX.equalToSuperview()
make.top.equalTo(self.button.snp.bottom).offset(20)
}
}
实现事件
@objc func click() {
LBXPermissions.authorizeCameraWith { [weak self] (granted) in
if granted {
self?.scanQrCode()
} else {
LBXPermissions.jumpToSystemPrivacySetting()
}
}
}
scanQrCode 方法
func scanQrCode() {
//设置扫码区域参数
var style = LBXScanViewStyle()
style.centerUpOffset = 60;
style.xScanRetangleOffset = 30;
if UIScreen.main.bounds.size.height <= 480 {
//3.5inch 显示的扫码缩小
style.centerUpOffset = 40;
style.xScanRetangleOffset = 20;
}
style.color_NotRecoginitonArea = UIColor(red: 0.4, green: 0.4, blue: 0.4, alpha: 0.4)
style.photoframeAngleStyle = LBXScanViewPhotoframeAngleStyle.Inner;
style.photoframeLineW = 2.0;
style.photoframeAngleW = 16;
style.photoframeAngleH = 16;
style.isNeedShowRetangle = false;
style.anmiationStyle = LBXScanViewAnimationStyle.NetGrid;
style.animationImage = UIImage(named: "qrcode_scan_full_net")
let vc = LBXScanViewController();
vc.scanStyle = style
vc.scanResultDelegate = self
self.navigationController?.pushViewController(vc, animated: true)
}
上面的 qrcode_scan_full_net 是一个图片，下载地址：https://github.com/MxABC/swiftScan/blob/master/swiftScan/CodeScan.bundle/qrcode_scan_full_net.png
拿到扫描结果
ViewController 要实现一个协议 LBXScanViewControllerDelegate 然后实现它的一个方法
func scanFinished(scanResult: LBXScanResult, error: String?) {
self.resultLabel.text = "扫描结果：" + scanResult.strScanned!
}