可以取消更改窗口历史记录 [英] CanDeactivate changing the window history

问题描述

每当它返回false时，我都会遇到canDeactivate()的问题，它会更改窗口历史记录，就像它变为true时一样，如果我按下后退"按钮.我正在导航到其他URL或不在应用程序本身之外.

I am facing some issue with canDeactivate() whenever it returns false it is changing the window history as when it became true and if i hit the back button. I am navigating to some other URL or out of the app itself.

请帮助我

推荐答案

此处是问题，但仍然没有解决.

Here is the issue, but it still isn't fixed.

作为一种解决方法，您可以手动将活动网址放回历史记录:

As a workaround, you can manually put the active url back to the history:

export class CanDeactivateGuard implements CanDeactivate<any> {
    constructor(
        private readonly location: Location,
        private readonly router: Router
    ) {}

    canDeactivate(component: any, currentRoute: ActivatedRouteSnapshot): boolean {
        if (myCondition) {
            const currentUrlTree = this.router.createUrlTree([], currentRoute);
            const currentUrl = currentUrlTree.toString();
            this.location.go(currentUrl);
            return false;
        } else {
            return true;
        }
    }
}

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