android集成flutter No implementation found for method getDatabasesPath on channel com.tekartik.sqflite

项目场景：

原有android项目集成flutter
环境：flutter sdk ： 1.17.4，
android studio ：3.6.3，
android sdk ： 29

问题描述：

运行报错：

Unhandled Exception: MissingPluginException(No implementation found for method getDatabasesPath on channel com.tekartik.sqflite)

解决方案：

在android端的MainActivity中，使用以下方法进行注册

 GeneratedPluginRegistrant.registerWith(flutterEngine);

例如：flutter与android进行交互时，声明一个方法来注册MethodChannel，同时调用GeneratedPluginRegistrant.registerWith(flutterEngine);方法。

public class FlutterPlugin implements MethodChannel.MethodCallHandler {
    static String METHOD_CHANNEL_NAME = "method_channel";
    FlutterFragment flutterFragment;

    public FlutterPlugin(FlutterFragment flutterFragment) {
        this.flutterFragment = flutterFragment;
    }

    static MethodChannel methodChannel;

    public FlutterPlugin registerPlugin() {
       
        FlutterPlugin instance = new FlutterPlugin(flutterFragment);
        
       GeneratedPluginRegistrant.registerWith(flutterFragment.getFlutterEngine());
        methodChannel =
                new MethodChannel(
                        flutterFragment.getFlutterEngine().getDartExecutor().getBinaryMessenger(),
                        METHOD_CHANNEL_NAME);
        methodChannel.setMethodCallHandler(instance);
        return instance;
    }

    @Override
    public void onMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result) {
        
    }
}

之后对该方法进行调用注册即可

FlutterPlugin plugin = new FlutterPlugin(flutterFragment).registerPlugin();