Flutterハイブリッド開発-通信

1. Flutterページ埋め込みネイティブ

パブリッククラスMyFlutterActivityはFragmentActivity { 


    FlutterFragment flutterFragment;を拡張します。

    @Override 
    protected void onCreate（@Nullable Bundle savedInstanceState）{ 
        super.onCreate（savedInstanceState）; 
        setContentView（R.layout.activity_my_flutter）; 
        
        initFlutterEngine（）; 
        attachFlutterFragment（）; 
    } 


    文字列ENGINE_ID = "a"; 

    プライベートFlutterEngine initFlutterEngine（）{ 
        FlutterEngine flutterEngine = FlutterEngineCache.getInstance（）。get（ENGINE_ID）; 

        if（null == flutterEngine）{ 
            flutterEngine = new FlutterEngine（this）; if 
            flutterEngine.getNavigationChannel（）。setInitialRoute（ "/"）;
            flutterEngine.getDartExecutor（）。executeDartEntrypoint（DartExecutor.DartEntrypoint.createDefault（））; 
            FlutterEngineCache 
                    .getInstance（）. 
                    put（ENGINE_ID、flutterEngine）; 
            messageChannelFunction（this、flutterEngine）; 
        } 
        flutterEngineを返します。
    } 

    private void attachFlutterFragment（）{ 
        if（null == flutterFragment）{ 
            flutterFragment = 
                    FlutterFragment.withCachedEngine（ENGINE_ID）
                            .shouldAttachEngineToActivity（true）
                            .build（）; 
        }
        getSupportFragmentManager（）. 
                beginTransaction（）. 
                add（R.id.container、flutterFragment）
                .commit（）; 
    } 
}