flutter-dependencies

问题 I am using a plugin for flutter called search_widget . The data parameter of this widget takes a list. But as I use sqlite for fetching data, I have it in Future<List> form. Is there any way I can convert Future<List> to List ? Or any other way to get this working. 回答1: Borrowing the example from search_widget you need dataList in a widget like this: SearchWidget<LeaderBoard>( dataList: list, textFieldBuilder: (TextEditingController controller, FocusNode focusNode) { return MyTextField

问题 After flutter upgrade fetching below error This requires the 'control-flow-collections' experiment to be enabled. Try enabling this experiment by adding it to the command line when compiling and running.dart(experiment_not_enabled) Current version info Flutter 1.17.0 • channel stable • https://github.com/flutter/flutter.git Framework • revision e6b34c2b5c (7 days ago) • 2020-05-02 11:39:18 -0700 Engine • revision 540786dd51 Tools • Dart 2.8.1 pubspec.yaml file environment environment: sdk: ">

问题 After flutter upgrade fetching below error This requires the 'control-flow-collections' experiment to be enabled. Try enabling this experiment by adding it to the command line when compiling and running.dart(experiment_not_enabled) Current version info Flutter 1.17.0 • channel stable • https://github.com/flutter/flutter.git Framework • revision e6b34c2b5c (7 days ago) • 2020-05-02 11:39:18 -0700 Engine • revision 540786dd51 Tools • Dart 2.8.1 pubspec.yaml file environment environment: sdk: ">

问题 After flutter upgrade fetching below error This requires the 'control-flow-collections' experiment to be enabled. Try enabling this experiment by adding it to the command line when compiling and running.dart(experiment_not_enabled) Current version info Flutter 1.17.0 • channel stable • https://github.com/flutter/flutter.git Framework • revision e6b34c2b5c (7 days ago) • 2020-05-02 11:39:18 -0700 Engine • revision 540786dd51 Tools • Dart 2.8.1 pubspec.yaml file environment environment: sdk: ">

问题 After updating the flutter to 1.12.13+hotfix.8, Flutter gives strange errors on release build, but works perfectly fine in debug build Error : FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'intent'. > SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Users/niyantras/tools/flutter/.pub-cache/hosted/pub.dartlang.org/intent- 1.1

问题 After updating the flutter to 1.12.13+hotfix.8, Flutter gives strange errors on release build, but works perfectly fine in debug build Error : FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring root project 'intent'. > SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Users/niyantras/tools/flutter/.pub-cache/hosted/pub.dartlang.org/intent- 1.1

问题 In my code below, I am struggling with LifeCyrles in Flutter where I can update my State in Provider, APPARENTLY, only in didChangeDependencies hook or in a template widget (via events hung up on buttons or so). Alright, I don't mind that only didChangeDependencies hook works for me BUT when my logic in earlier mentioned hook depends on some class properties I am having problems with the accuracy of the class data. I get data one step behind (since it's called before build hook I guess). I

问题 I have a list of data called anchors that has a link to a detailed screen. And each anchor has distribution centers which are an array of nested objects. so I was able to parse an id of each of the anchors to a detailed screen and Oid I am having a challenge to loop through the children i.e the distribution centers of the anchors. Please can anyone help me, I was able to pull all the values belonging to an anchor to the detailed screen but how to loop through the nested values in the detailed

问题 I have a list of data called anchors that has a link to a detailed screen. And each anchor has distribution centers which are an array of nested objects. so I was able to parse an id of each of the anchors to a detailed screen and Oid I am having a challenge to loop through the children i.e the distribution centers of the anchors. Please can anyone help me, I was able to pull all the values belonging to an anchor to the detailed screen but how to loop through the nested values in the detailed

问题 I have a list of data called anchors that has a link to a detailed screen. And each anchor has distribution centers which are an array of nested objects. so I was able to parse an id of each of the anchors to a detailed screen and Oid I am having a challenge to loop through the children i.e the distribution centers of the anchors. Please can anyone help me, I was able to pull all the values belonging to an anchor to the detailed screen but how to loop through the nested values in the detailed