window.addEventListener('load', function(ev) {
・・・省略・・・
});
↓
・・・省略・・・
window.addEventListener("load", function (ev) {
// Embed flutter into div#flutter_target
let target = document.querySelector("#flutter_target");
_flutter.loader.loadEntrypoint({
onEntrypointLoaded: async function (engineInitializer) {
let appRunner = await engineInitializer.initializeEngine({
hostElement: target,
});
await appRunner.runApp();
},
});
});
プロジェクト作成後、
web/index.htmlを書き換え
flutter_targetのセレクタを追加
デフォルトのloadEntrypointの記述を
変更してhostElementを追加