signIn method

Future<bool?> signIn(dynamic context)

Pushes a page onto the top of the Navigator stack containing a WebView holding the Spotify sign-in flow. Users must have a valid Spotify account and be signed in for Spotify nowplaying details to be available

Implementation

Future<bool?> signIn(context) {
  final _controller = WebViewController()
    ..setJavaScriptMode(JavaScriptMode.unrestricted)
    ..setBackgroundColor(Colors.white)
    ..setNavigationDelegate(
      NavigationDelegate(
        onNavigationRequest: (navReq) {
          if (navReq.url.startsWith(_redirectUri)) {
            this._spotifyApi =
                SpotifyApi.fromAuthCodeGrant(this._grant, navReq.url);
            _saveCredentials();
            Navigator.of(context).pop(true);
            return NavigationDecision.prevent;
          }
          return NavigationDecision.navigate;
        },
      ),
    )
    ..loadRequest(_authUri);

  return Navigator.of(context).push<bool>(
    MaterialPageRoute(
      builder: (context) => WebViewWidget(controller: _controller),
    ),
  );
}