Is there a way to trigger an activity on a chrome custom tabs resume?

Question

I don't think there's a way to do this but I wanted to double check.

I have some web content being loaded in a chrome custom tab, and the content could be sensitive in nature.

The android app has a PIN screen, which we would like to show when the custom tab resumes, but I don't see any way to do this, or believe it's possible.

Can this be done with custom tabs, or will the web app need to implement their own PIN screen?

well, assuming this custom tab is opened in your app you can always lock screen from calling `Activity`s side. but if you manage only web side I'm also affraid that you don't have option to force-lock device... — snachmsm, Oct 06 '21 at 19:29
@snachmsm ya it's in my app. I've found that there's a onNavigationEvent callback that I might be able to work with, I just can't get it to work yet. The whole CustomTabServiceConnection isn't triggering onCustomTabsServiceConnected yet. Hopefully once that's working the callback will function as i need. Otherwise my app doesn't trigger any lifecycle events when the custom tab resumes — Ben987654, Oct 06 '21 at 21:05
Issue was with targeting SDK 30. I guess something to do with the chrome package and the new package manager changes it didn't like so the service wouldn't bind. Tomorrow i can figure out if my entire workflow will work. — Ben987654, Oct 06 '21 at 23:24

score 0 · Accepted Answer · answered Oct 07 '21 at 16:13

There's a callback when you bind a custom tab service that will alert you when a tab is shown (5) / hidden (6)

CustomTabsServiceConnection customTabsServiceConnection = new CustomTabsServiceConnection() {
            @Override
            public void onCustomTabsServiceConnected(ComponentName componentName, CustomTabsClient customTabsClient) {
                client = customTabsClient;
                client.warmup(0L);
                customTabsSession = client.newSession(new CustomTabsCallback() {
                    @Override
                    public void onNavigationEvent(int navigationEvent, @Nullable Bundle extras) {
                        super.onNavigationEvent(navigationEvent, extras);
                    }
            }
}

You can then bind this and the callbacks will start triggering when you use it when launching your tabs (SDK <= 29, it will be different on 30)

    String packageName = CustomTabsClient.getPackageName(this, null);
    boolean didSucceed = CustomTabsClient.bindCustomTabsService(this, packageName, mCustomTabsServiceConnection);

    CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder(customTabsSession);

Is there a way to trigger an activity on a chrome custom tabs resume?

1 Answers1