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    Currently, I know the method of hiding the soft keyboard using this code, by onTap methods of any widget. FocusScope ... in flutter to do this? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    class Parent<T> { void method(T t) {} } class Child extends Parent { @override void method(int i) {} ... a method vs calling regular methods. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a BottomNavigationBar at the upper-most level of my app. I want to detect keyboard open/close ... from the BottomNavigationBar :-) See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    i want to show a superscript text but not found any example or can anyone help me with this. I have tried ... not found any method or fields. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to create a uniform drawer that is accessible across all pages in my app. How do I make it ... widget in every single dart file? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a list of locations that i want to implement as a dropdown list in Flutter. Im pretty new to the ... = 'Please choose a location'; See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Outside of Flutter, when I implement firebase authentication I always use the onAuthStateChanged listener ... master/packages/google_sign_in See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Our app is built on top of Scaffold and to this point we have been able to accommodate most of our routing and ... ) might be in order ;-) See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In Flutter, is there a way to update widgets when the user leaves the app and come right back to it? My app is ... the time as soon as it can. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am using the dart package json_serializable for json serialization. Looking at the flutter documentation it shows ... of a single instance. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When popping a screen navigating to other one by clicking on the showBottomSheet, this error is thrown through the ... , this was the stack: See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I would like to share an image using the standard share dialogs in iOS and Android. The code below is mostly ... animated:YES completion:nil]; } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I want to create a flutter app that has 2 light and dark mode themes that change by a switch in-app and ... a simple switch in running time? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What is the difference between show and as in an import statement? For example, what's the difference between ... are reported as undefined. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have a flutter project that I am working on I can't put the whole code cause its more than 500 lines of code so I ... () from here?? } ); } } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    In the same way we can have nullableClassInstance?.method(blah) Is there a way to do nullableFunctionInstance?(blah) ... all in one line? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I've created my class in Dart this way, but I'm getting the Non-nullable instance field 'text' must be initialized. Try ... this._pos] : ''; } } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Having a weird issue. In my Dart code I have some polymer components on the screen and one of them has a method ... a method on a null element. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    My Container having a description of movies. Initially, I want to show only a few lines of description. And ... , check this JQuery plugin. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    Is it possible to preload somehow the image on the app start? Like I have an background image in my drawer but ... so there is no such effect. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    When it comes to JSON encoding in Dart, per Seth Ladd's accouncement the finally approved now official way to ... the discussion on Hacker News. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I would like to make my Flutter application to run always in background. With android, we have to create a ... kind of things with Flutter? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am developing Flutter app for the first time.. I have an issue in adding a image. I have a below ... would be appreciated. Thank you ! See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am learning to build apps in Flutter. Now I have come to alert dialogs. I have done them before in Android and ... Q&A so my answer is below. See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have 2 screens in my Flutter app: a list of records and a screen for creating and editing ... I access recordObject inside _RecordPageState? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am trying to set a background image for the home page. I am getting the image place from start of the screen and filling ... ") ] ) ) ); } } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I am collecting user input with a TextFormField and when the user presses a FloatingActionButton indicating they are done, ... (new MyApp()); } See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm trying to obtain the top-level state of my app using a .of()-method, similar to the Scaffold.of() function. ... this? And how can I fix it? See Question&Answers more detail:os...
asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)
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