您好,我正在尝试从firebase获取图像,然后将其返回到一个旋转木马slider.builder中,但无论何时加载应用程序,它都会抛出以下异常。图像存储在Firebase中。我不明白为什么它不能获取detials。属性是正确的,但它仍然不能从firebase中获取图像。 I/flutter (13636): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter (13636): The following NoSuchMet
现在我有一张设计图,标题是PingFangSC-Semibold,内容是PingFangSC-Regular。 如何在Flutter中使用PingFangSC-Regular和PingFangSC-Semibold? Flutter中的默认字体似乎是SF。我是否需要引入这两种字体,或者如何引入? enter image description here
flutter_charts:^0.1.10 https://pub.dev/packages/charts_flutter https://pub.dev/documentation/charts_flutter/latest/flutter/BarChart-class.html 我想设置固定宽度的条形图,并需要滚动水平x axis.so它可能吗? import 'package:charts_flutter/flutter.dart' as charts;
final data = [
new OrdinalSales('2014', ra