142 lines
4.9 KiB
Plaintext
142 lines
4.9 KiB
Plaintext
import { NotificationCenter } from 'Foundation';
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import { CGRect } from "CoreFoundation";
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import { UIApplication, UIView, UITextField, UIScreen, UIDevice } from "UIKit"
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import { UTSiOS } from "DCloudUTSFoundation"
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import { DispatchQueue } from 'Dispatch';
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import { SetUserCaptureScreenOptions, OnUserCaptureScreenCallbackResult, OnUserCaptureScreen, OffUserCaptureScreen, SetUserCaptureScreen, UserCaptureScreenCallback, SetUserCaptureScreenSuccess } from "../interface.uts"
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import { SetUserCaptureScreenFailImpl } from "../unierror.uts"
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/**
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* 定义监听截屏事件工具类
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*/
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class CaptureScreenTool {
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static listener : UserCaptureScreenCallback | null;
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static secureView : UIView | null;
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// 监听截屏
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static listenCaptureScreen(callback : UserCaptureScreenCallback | null) {
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this.listener = callback
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// 注册监听截屏事件及回调方法
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// target-action 回调方法需要通过 Selector("方法名") 构建
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const method = Selector("userDidTakeScreenshot")
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NotificationCenter.default.addObserver(this, selector = method, name = UIApplication.userDidTakeScreenshotNotification, object = null)
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}
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// 捕获截屏回调的方法
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// target-action 的方法前需要添加 @objc 前缀
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@objc static userDidTakeScreenshot() {
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// 回调
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const res: OnUserCaptureScreenCallbackResult = {
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}
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this.listener?.(res)
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}
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// 移除监听事件
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static removeListen(callback : UserCaptureScreenCallback | null) {
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this.listener = null
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NotificationCenter.default.removeObserver(this)
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}
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static createSecureView() : UIView | null {
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let field = new UITextField(frame = CGRect.zero)
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field.isSecureTextEntry = true
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if (field.subviews.length > 0 && UIDevice.current.systemVersion != '15.1') {
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let view = field.subviews[0]
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view.subviews.forEach((item) => {
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item.removeFromSuperview()
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})
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view.isUserInteractionEnabled = true
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return view
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}
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return null
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}
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// 开启防截屏
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static onAntiScreenshot(option : SetUserCaptureScreenOptions) {
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// uts方法默认会在子线程中执行，涉及 UI 操作必须在主线程中运行，通过 DispatchQueue.main.async 方法可将代码在主线程中运行
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DispatchQueue.main.async(execute = () : void => {
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let secureView = this.createSecureView()
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let window = UTSiOS.getKeyWindow()
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let rootView = window.rootViewController == null ? null : window.rootViewController!.view
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if (secureView != null && rootView != null) {
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let rootSuperview = rootView!.superview
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if (rootSuperview != null) {
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this.secureView = secureView
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rootSuperview!.addSubview(secureView!)
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rootView!.removeFromSuperview()
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secureView!.addSubview(rootView!)
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// secureView 充满父视图并随父视图宽高自适应（横竖屏、全屏切换时自动跟随）
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secureView!.frame = rootSuperview!.bounds
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secureView!.autoresizingMask = [UIView.AutoresizingMask.flexibleWidth, UIView.AutoresizingMask.flexibleHeight]
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// rootView 充满 secureView 并自适应，避免全屏时被固定在竖屏尺寸而缩到角落
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rootView!.frame = secureView!.bounds
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rootView!.autoresizingMask = [UIView.AutoresizingMask.flexibleWidth, UIView.AutoresizingMask.flexibleHeight]
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}
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}
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let res: SetUserCaptureScreenSuccess = {
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}
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option.success?.(res)
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option.complete?.(res)
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})
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}
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// 关闭防截屏
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static offAntiScreenshot(option : SetUserCaptureScreenOptions) {
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DispatchQueue.main.async(execute = () : void => {
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if (this.secureView != null) {
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let window = UTSiOS.getKeyWindow()
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let rootView = window.rootViewController == null ? null : window.rootViewController!.view
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if (rootView != null && this.secureView!.superview != null) {
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let rootSuperview = this.secureView!.superview
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if (rootSuperview != null) {
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rootSuperview!.addSubview(rootView!)
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this.secureView!.removeFromSuperview()
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}
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}
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this.secureView = null
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}
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let res: SetUserCaptureScreenSuccess = {
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}
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option.success?.(res)
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option.complete?.(res)
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})
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}
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}
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/**
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* 开启截图监听
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*/
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export const onUserCaptureScreen : OnUserCaptureScreen = function (callback : UserCaptureScreenCallback | null) {
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CaptureScreenTool.listenCaptureScreen(callback)
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}
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/**
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* 关闭截屏监听
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*/
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export const offUserCaptureScreen : OffUserCaptureScreen = function (callback : UserCaptureScreenCallback | null) {
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CaptureScreenTool.removeListen(callback)
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}
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/**
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* 开启/关闭防截屏
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*/
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export const setUserCaptureScreen : SetUserCaptureScreen = function (options : SetUserCaptureScreenOptions) {
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if (UIDevice.current.systemVersion < "13.0") {
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let res = new SetUserCaptureScreenFailImpl(12001)
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options.fail?.(res);
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options.complete?.(res);
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} else if (UIDevice.current.systemVersion == "15.1") {
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let res = new SetUserCaptureScreenFailImpl(12010)
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options.fail?.(res);
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options.complete?.(res);
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} else {
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if (options.enable == true) {
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CaptureScreenTool.offAntiScreenshot(options)
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} else {
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CaptureScreenTool.onAntiScreenshot(options)
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}
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}
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}
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