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I've put together a PWA and wanted to convert it into an Android App. I've done so and my Android app consists of Main Activity and TWA that I start from the Main Activity.

Is there a way to switch from inside the TWA to some other activity on some event in the PWA running in this TWA? Like button click. Preferably from the HTML/Javascript of the PWA itself.

The end goal is to ad ads to the app (I'm using some paid APIs in the PWA so I need to at least break even and cannot monetize it on the web development side since Google AdSense and likes need context rich web-apps like blogs) and I've figured out that Google AdMob don't show up in TWA, they require a native Android Activity.

This question is closely related but I don't know where to put this URI: Launching another activity from a Trusted Web Activity (TWA)

Thank you!

Stepan Rumyantsev
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1 Answers1

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Yes, it is possible to start a different Activity. You will need to define a custom schema and link to that schema from the PWA:

This is defined inside AndroidManifest.xml, where the Activity you want to open from the PWA is specified. In the example below, we want to open ReviewActivity from the PWA, so we define:

  <activity android:name=".ReviewActivity"
      android:theme="@android:style/Theme.Translucent.NoTitleBar">
      <intent-filter>
          <action android:name="android.intent.action.VIEW"/>
          <category android:name="android.intent.category.DEFAULT" />
          <category android:name="android.intent.category.BROWSABLE" />
          <data android:scheme="doom-fire" android:host="review" />
      </intent-filter>
  </activity>

Then, in the web application, whenever you link to doom-fire://review, ReviewActivity will be opened:

<a href="doom-fire://review">Rate app now!</a>

I wrote a complete blogpost for the in-app review use-case that you may want to check out.

andreban
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