如何使我的 firebase 动态 link 重定向到我在桌面上的网站和我在移动设备上的即时应用程序

Question

我有一个免安装应用和一个重定向到此免安装应用的 Firebase 动态 link。

但是当我在计算机上单击动态 link 时，link 导致我的网站页面不存在。

根据 Google 文档：https://firebase.google.com/docs/dynamic-links/android/create

When users open a Dynamic Link on a desktop web browser, they will load this URL (unless the ofl parameter is specified). If you don't have a web equivalent to the linked content, the URL doesn't need to point to a valid web resource. In this situation, you should set up a redirect from this URL to, for example, your home page.

所以我为我的动态 link 创建了一个重定向 /分享/**到/

它有效，当我在计算机上单击 link 时，我登陆了我网站的主页。但是我的 Dynamic links 也在我的主页上，并且不再打开我的即时应用程序。

所以我的问题是：如何配置重定向，将桌面用户从 /share/** 重定向到 / 而不会破坏我的即时应用程序？

Answer 1

将 "ofl" 参数添加到 url 以使 FDL 在桌面上重定向另一个 URL。

不幸的是，无法使用 Android 生成器添加此参数。

因此您必须手动创建 link，并使用 "setLongLink" 方法，您可以在页面底部看到：https://firebase.google.com/docs/dynamic-links/android/create#shorten-a-long-dynamic-link

Task<ShortDynamicLink> shortLinkTask = FirebaseDynamicLinks.getInstance().createDynamicLink()
        .setLongLink(Uri.parse("https://example.page.link/?link=https://www.example.com/&apn=com.example.android&ibn=com.example.ios"))
        .buildShortDynamicLink()
        .addOnCompleteListener(this, new OnCompleteListener<ShortDynamicLink>() {
            @Override
            public void onComplete(@NonNull Task<ShortDynamicLink> task) {
                if (task.isSuccessful()) {
                    // Short link created
                    Uri shortLink = task.getResult().getShortLink();
                    Uri flowchartLink = task.getResult().getPreviewLink();
                } else {
                    // Error
                    // ...
                }
            }
        });

我创建了自己的构建器以包含 ofl 参数。如果有帮助:

public class DynamicLinkBuilder {

    private String dynamicLink = "https://example.com/foo"

    public DynamicLinkBuilder(String link) {
        this.dynamicLink += "?link=" + link;
    }

    public DynamicLinkBuilder addMinVersion(int minVersion){
        dynamicLink += "&amv=" + minVersion;
        return this;
    }

    public DynamicLinkBuilder addIosUrl(String iosUrl){
        dynamicLink += "&ifl=" + iosUrl;
        return this;
    }

    public DynamicLinkBuilder addDesktopUrl(String desktopUrl){
        dynamicLink += "&ofl=" + desktopUrl;
        return this;
    }

    public DynamicLinkBuilder addFallbackUrl(String fallbackUrl){
        dynamicLink += "&afl=" + fallbackUrl;
        return this;
    }

    public DynamicLinkBuilder addPackageName(String packageName){
        dynamicLink += "&apn=" + packageName;
        return this;
    }

    public DynamicLinkBuilder addSocialMediaLogo(String logoUrl){
        dynamicLink += "&si=" + logoUrl;
        return this;
    }

    public DynamicLinkBuilder addSocialMediaTitle(String title){
        dynamicLink += "&st=" + Uri.encode(title);
        return this;
    }

    public DynamicLinkBuilder addSocialMediaDescription(String description){
        dynamicLink += "&sd=" + Uri.encode(description);
        return this;
    }

    public String build(){
        return dynamicLink;
    }
}

Answer 2

@西蒙，

无需手动link构建即可实现，只需使用相同的构建器

private static final String OTHER_PLATFORM_LINK_KEY = "ofl";

public static Task<ShortDynamicLink> createShortDynamicLink(Uri deepLink, Uri imageUrl, String title, String description) {
    DynamicLink dynamicLink = createDynamicLink(deepLink, imageUrl, title, description);
    return FirebaseDynamicLinks.getInstance().createDynamicLink()
            .setLongLink(dynamicLink.getUri())
            .buildShortDynamicLink();
}

public static DynamicLink createDynamicLink(Uri deepLink, Uri imageUrl, String title, String description) {
    DynamicLink dynamicLink = getDynamicLinkBuilder(deepLink, imageUrl, title, description)
            .buildDynamicLink();
    String longDynamicLink = String.valueOf(dynamicLink.getUri());
    longDynamicLink += '&' + OTHER_PLATFORM_LINK_KEY + '=' + DomainConstants.OTHER_PLATFORM_LINK;
    return FirebaseDynamicLinks.getInstance().createDynamicLink()
            .setLongLink(Uri.parse(longDynamicLink))
            .buildDynamicLink();
}

public static DynamicLink.Builder getDynamicLinkBuilder(Uri deepLink, Uri imageUrl, String title, String description) {
    return FirebaseDynamicLinks.getInstance().createDynamicLink()
            .setLink(deepLink)
            .setDomainUriPrefix(DomainConstants.DYNAMIC_LINK_DOMAIN_URI_PREFIX)
            .setAndroidParameters(new DynamicLink.AndroidParameters.Builder().build())
            .setIosParameters(new DynamicLink.IosParameters.Builder(DomainConstants.IOS_BUNDLE_ID)
                    .setAppStoreId(DomainConstants.APP_STORE_ID)
                    .setMinimumVersion(DomainConstants.IOS_MINIMUM_VERSION)
                    .build())
            .setSocialMetaTagParameters(
                    new DynamicLink.SocialMetaTagParameters.Builder()
                            .setTitle(title)
                            .setDescription(description)
                            .setImageUrl(imageUrl)
                            .build())
            .setNavigationInfoParameters(new DynamicLink.NavigationInfoParameters.Builder()
                    .setForcedRedirectEnabled(true)
                    .build());
}

Answer 3

我用类似的方法解决了这个问题，但代码更短：正如其他人提到的，您必须手动将 'ofl' 参数添加到 link。我的方法是：

// Grab link from Firebase builder
guard var longDynamicLink = shareLink.url else { return }
// Parse URL to string
var urlStr = longDynamicLink.absoluteString
// Append the ofl fallback (ofl param specifies a device other than ios or android)
urlStr = urlStr + "&ofl=https://www.meetmaro.com/"
// Convert back to a URL
var urlFinal = URL(string: urlStr)!

// Shorten the url & check for errors
DynamicLinkComponents.shortenURL(urlFinal, options: nil, completion:{ [weak self] url,warnings,error in
        if let _ = error{
            return
        }
        if let warnings = warnings{
            for warning in warnings{
                print("Shorten URL warnings: ", warning)
            }
        }
        guard let shortUrl = url else {return}
        // prompt the user with UIActivityViewController
        self?.showShareSheet(url: shortUrl)
    })

然后可以使用最后的 URL 来呈现具有另一个功能的可共享面板，例如： self.showShareSheet(url: finalUrl) 触发 UIActivityViewController

原始想法归功于 http://ostack.cn/?qa=168161/

关于 ofl 的更多信息：https://firebase.google.com/docs/dynamic-links/create-manually?authuser=3#general-params

Answer 4

基于@Ivan Karpiuk 的回答：

Documentation:

ofl The link to open on platforms beside Android and iOS. This is useful to specify a different behavior on desktop, like displaying a full web page of the app content/payload (as specified by param link) with another dynamic link to install the app.

添加此 DynamicLink.Builder 扩展名：

private fun DynamicLink.Builder.otherPlatformParameters(): DynamicLink.Builder {
    var longDynamicLink = this.buildDynamicLink().uri.toString()
    longDynamicLink += "&ofl=" + YOUR_URL

    longLink = Uri.parse(longDynamicLink)

    return this
}

将 YOUR_URL 替换为您的，然后：

FirebaseDynamicLinks.getInstance().createDynamicLink()
        .setLink(...)
        .setDomainUriPrefix(...)
        .setAndroidParameters(...)
        .setIosParameters(...)
        .setSocialMetaTagParameters(...)
        .otherPlatformParameters()
        .buildShortDynamicLink()

所以我们通过 createDynamicLink() 创建一个长 link，添加 ofl 和 otherPlatformParameters() 然后将其转换为短 link buildShortDynamicLink()

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