CODEWITHSUNDEEP
javascriptandroidkotlinweb-applicationswebview
Sazzad Hissain Khan
Sazzad Hissain Khan

Reputation: 40196

How to use js bridge in chrome custom tab

Google oAuth is not supported in android webView. Google recommends to use chrome custom tab for proceeding oAuth. I have also requirements of js call from my web app to native. How to configure to call native methods from web app using chrome custom tab in android similarly like js interface in webView?

Update 1

This mod Chang marked the post as duplicate but the post is different. I don't want to run any JS in my web app from native. I want to invoke method from web app to my native code via JS interface. Is there any way for CCT?

Upvotes: 3

Views: 3361

Answers (1)

Morrison Chang
Morrison Chang

Reputation: 12121

Based on Can I Inject Javascript Code into Chrome Custom Tabs the answer appears to be no.

Chrome Custom Tab is based on Chrome itself and has the same security model. The web content is only allowed access to the Web APIs (camera, device orientation, etc.) and has no access to the native app. At best the native app can capture a URI.

Even the Chrome Custom Tab documentation state that the way for a native app to handle content:

Some URLs can be handled by native applications. If the user has the Twitter app installed and clicks on a link to a tweet. She expects that the Twitter application will handle it.

Before opening an url from your application, check if a native alternative is available and use it.

Implies that either a native app handles a URL or not. My interpretation of Chrome Custom Tab is a skinnable Chrome component adjacent to the native app rather than internal to a native app like a WebView where a Javascript bridge exists.

Your desire for a Javascript bridge from a web app would mean that there would be a arbitrary way for any website code to interact outside of the web container. The rational as to why that is not allowed is given as the responses in the first link.

Upvotes: 2

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