screenutil_init.dart
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import 'package:flutter/widgets.dart';
import 'package:flutter/rendering.dart';
import 'screen_util.dart';
class ScreenUtilInit extends StatelessWidget {
/// A helper widget that initializes [ScreenUtil]
const ScreenUtilInit({
required this.builder,
this.designSize = ScreenUtil.defaultSize,
this.splitScreenMode = false,
this.minTextAdapt = false,
Key? key,
}) : super(key: key);
final WidgetBuilder builder;
final bool splitScreenMode;
final bool minTextAdapt;
/// The [Size] of the device in the design draft, in dp
final Size designSize;
@override
Widget build(BuildContext _) {
bool firstFrameAllowed = false;
RendererBinding.instance!.deferFirstFrame();
return MediaQuery.fromWindow(
child: Builder(builder: (context) {
if (MediaQuery.of(context).size == Size.zero) return const SizedBox();
ScreenUtil.init(
context,
designSize: designSize,
splitScreenMode: splitScreenMode,
minTextAdapt: minTextAdapt,
);
if (!firstFrameAllowed) {
RendererBinding.instance!.allowFirstFrame();
firstFrameAllowed = true;
}
return builder(context);
}),
);
}
}