Flutter Android Android Studio APP 技术 Flutter 升级到 1.12.13 后，嵌入Android原生组件的问题 2020-02-10 21:49 3883 更新于 2020-02-10 21:49 Flutter 升级到 1.12 后，使用原生Android组件有些变化，需要更新Android代码 关于 Flutter 如何嵌入Android组件请自行百度。 这里我是修改百度地图。 ``` import com.baidu.mapapi.map.MapView; import io.flutter.plugin.common.PluginRegistry; import io.flutter.plugin.common.StandardMessageCodec; public final class MapRegistrant { public static void registerWith(PluginRegistry registry, MapView mapView) { final String key = MapRegistrant.class.getCanonicalName(); if (registry.hasPlugin(key)) return; PluginRegistry.Registrar registrar = registry.registrarFor(key); registrar.platformViewRegistry().registerViewFactory("BDMap", new MapViewFactory(new StandardMessageCodec(), mapView)); } } ``` Flutter 升级到 1.12 后，修改如下 ``` import com.baidu.mapapi.map.MapView; import io.flutter.embedding.engine.FlutterEngine; import io.flutter.embedding.engine.plugins.shim.ShimPluginRegistry; import io.flutter.plugin.common.PluginRegistry; import io.flutter.plugin.common.StandardMessageCodec; public final class MapRegistrant { public static void registerWith(FlutterEngine flutterEngine, MapView mapView) { final String key = MapRegistrant.class.getCanonicalName(); ShimPluginRegistry shimPluginRegistry = new ShimPluginRegistry(flutterEngine); if (shimPluginRegistry.hasPlugin(key)) return; PluginRegistry.Registrar registrar = shimPluginRegistry.registrarFor(key); registrar.platformViewRegistry().registerViewFactory("BDMap", new MapViewFactory(new StandardMessageCodec(), mapView)); } } ``` `registry` 改为 `flutterEngine`，然后使用 `ShimPluginRegistry shimPluginRegistry = new ShimPluginRegistry(flutterEngine)`; Flutter 1.12 中 `MainActivity` 使用了 `configureFlutterEngine` 方法，不再使用 `onCreate` 方法 在 `configureFlutterEngine` 方法中使用 如下方式调用 ``` public class MainActivity extends FlutterActivity { @Override public void configureFlutterEngine(FlutterEngine flutterEngine){ GeneratedPluginRegistrant.registerWith(flutterEngine); MapView mapView = new MapView(this); MapRegistrant.registerWith(flutterEngine, mapView); } } ``` 关于 Flutter 1.12 和 Android 通信的其它问题，参考 [这篇文章](/article/61 "这篇文章")
