Intent anchor syntax description

Question

I\'m trying to use the intent anchor to launch my app as described here. I\'m able to get it to launch my app using this syntax,

Answer 1

As at android 28, the API has changed. Here is what the toUri code has been changed to:

public String toUri(@UriFlags int flags) {
    StringBuilder uri = new StringBuilder(128);
    if ((flags&URI_ANDROID_APP_SCHEME) != 0) {
        if (mPackage == null) {
            throw new IllegalArgumentException(
                    "Intent must include an explicit package name to build an android-app: "
                    + this);
        }
        uri.append("android-app://");
        uri.append(mPackage);
        String scheme = null;
        if (mData != null) {
            scheme = mData.getScheme();
            if (scheme != null) {
                uri.append('/');
                uri.append(scheme);
                String authority = mData.getEncodedAuthority();
                if (authority != null) {
                    uri.append('/');
                    uri.append(authority);
                    String path = mData.getEncodedPath();
                    if (path != null) {
                        uri.append(path);
                    }
                    String queryParams = mData.getEncodedQuery();
                    if (queryParams != null) {
                        uri.append('?');
                        uri.append(queryParams);
                    }
                    String fragment = mData.getEncodedFragment();
                    if (fragment != null) {
                        uri.append('#');
                        uri.append(fragment);
                    }
                }
            }
        }
        toUriFragment(uri, null, scheme == null ? Intent.ACTION_MAIN : Intent.ACTION_VIEW,
                mPackage, flags);
        return uri.toString();
    }
    String scheme = null;
    if (mData != null) {
        String data = mData.toString();
        if ((flags&URI_INTENT_SCHEME) != 0) {
            final int N = data.length();
            for (int i=0; i= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
                        || (c >= '0' && c <= '9') || c == '.' || c == '-' || c == '+') {
                    continue;
                }
                if (c == ':' && i > 0) {
                    // Valid scheme.
                    scheme = data.substring(0, i);
                    uri.append("intent:");
                    data = data.substring(i+1);
                    break;
                }

                // No scheme.
                break;
            }
        }
        uri.append(data);

    } else if ((flags&URI_INTENT_SCHEME) != 0) {
        uri.append("intent:");
    }

    toUriFragment(uri, scheme, Intent.ACTION_VIEW, null, flags);

    return uri.toString();
}

This shows that the chosen answer will no longer work.

Check this answer by David Wasser for a working solution.