How to handle deep link routing in Android apps with in-app browsers

android-platform-routing.java

// List of common browser package names
String[] browserPackageNames = {"com.android.chrome", "org.mozilla.firefox", "com.UCMobile.intl", "com.sec.android.app.sbrowser", "com.opera.browser", "com.opera.mini.native", "com.microsoft.emmx"};
];

void loadURL(Context context, URI destinationUrl) {
    boolean isAppOpened = false;
    try {
        // First, check if the URI can resolve an intent
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.setData(destinationUrl);
        ResolveInfo activity = intent.resolveActivity(context.getPackageManager());
        
        // Then check if the destination app is not a browser, because you want to load those in your own in-app browser
        if (activity != null && !Arrays.asList(browserPackageNames).contains(activity.activityInfo.packageName)) {
            // If it is a 3rd party app, then open it up!
            context.startActivity(intent);
            isAppOpened = true;
        }   
    } catch (Exception ignore) { }

    // If no app was opened via an intent, load the URL in your custom in-app browser.
    if (!isAppOpened) {
        CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
        CustomTabsIntent customTabsIntent = builder.build();
        customTabsIntent.launchUrl(context, destinationUrl);
    }
}