我尝试在连接手机的情况下构建 ios 或 flutter build ios 我收到此错误
ld: '/Users/Library/Developer/Xcode/DerivedData/Runner-dwvxvkkosgpgqncynmszqlholtde/Build/Products/Debug-iphoneos/BoringSSL-GRPC/libBoringSSL-GRPC.a(BoringSSL-GRPC-dummy.o)' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. file '/Users/Library/Developer/Xcode/DerivedData/Runner-dwvxvkkosgpgqncynmszqlholtde/Build/Products/Debug-iphoneos/BoringSSL-GRPC/libBoringSSL-GRPC.a' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
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如果我使用模拟器运行它的工作,在构建连接的 whit pshyscal 设备或颤动构建时出现问题如何解决?
医生 -v
[?] Flutter (Channel stable, v1.12.13+hotfix.5, on Mac OS X 10.15.2 19C57, locale en)
• Flutter version 1.12.13+hotfix.5 at /Users/user/Development/flutter …Run Code Online (Sandbox Code Playgroud) 注意:我使用Navigator.of(context).push来推送ModalRoute,
嗨,我的页面上ModalRoute有TextFormField,但是当键盘显示时,输入正被键盘隐藏,如何解决呢?
return Container(
child: ListView(
children: <Widget>[
//other widget
SizedBox(height: _qtyAnimation.value),
Row(
children: <Widget>[
Expanded(
child: Text(
"Jumlah",
style: TextStyle(fontWeight: FontWeight.bold),
),
),
SizedBox(
width: 145.0,
child: TextFormField(
focusNode: _qtyFocusNode,
controller: qty,
keyboardType: TextInputType.number,
textAlign: TextAlign.center,
decoration: InputDecoration(
contentPadding: EdgeInsets.all(0.0),
prefixIcon: IconButton(
icon: Icon(Icons.remove),
onPressed: () {},
),
border: OutlineInputBorder(
borderSide:
BorderSide(color: Colors.grey, width: 0.1),
),
suffixIcon: IconButton(
icon: Icon(Icons.add),
onPressed: () {},
),
),
),
),
],
),
],
);
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多数民众赞成在我的代码,我尝试与focusnode和更多,仍然相同的结果请帮助我
我有一个调用 showDatePicker 的代码,我的问题是如何禁用特定日期、一个、两个或多个 json 日期的列表?我尝试禁用周六和周日的 selectableDayPredicate,但是如何禁用来自 api 的 json 日期列表?
onTap: () {
showDatePicker(
context: context,
initialDate:
DateTime.now().add(Duration(days: 2)),
firstDate:
DateTime.now().add(Duration(days: 1)),
lastDate:
DateTime.now().add(Duration(days: 730)),
selectableDayPredicate: (DateTime val) =>
val.weekday == 5 || val.weekday == 6
? false
: true,
);
}
Run Code Online (Sandbox Code Playgroud) 我有一个 flutter 项目,当我尝试制作一个 invinite 列表视图但滚动控制器不起作用时,没有错误。也刷新指示器不起作用,但如果列表视图刷新工作的主要错误。
有关信息,如果主设置为 false,我的列表视图将不起作用,因为 main.dart 代码上的列表视图中的此列表视图
List<dynamic> list = [];
ScrollController _scrollController = ScrollController();
void initState() {
super.initState();
_loadData();
_scrollController.addListener(() {
if (_scrollController.position.pixels ==
_scrollController.position.maxScrollExtent - 50) {
_loadData();
}
});
}
@override
void dispose() {
_scrollController.dispose();
super.dispose();
}
Future<dynamic> _loadData() {
var offset = list.length;
return Api().postData("resto",
body: <String, String>{"offset": "$offset"}).then((dynamic res) {
if (res["error"]) throw new Exception(res["msg"]);
setState(() {
list.addAll(res['data']);
});
});
}
@override
Widget build(BuildContext context) {
return Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
FlatButton( …Run Code Online (Sandbox Code Playgroud)