Recent questions tagged Flutter

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I'm facing an issue where when I sign out a user (using FirebaseAuth.signOut() method) and sign in with ... clear its local cache? Cheers! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Is it possible to force the alignment of a specific child widget in a Wrap widget?

I'm trying to create a layout in flutter consisting of a row with two child widgets, the first aligned to the ... edge when it has to wrap? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter notify from top of the screen

I'm trying to figure out how to notify user with alert that comes from top of the screen like normal push ... bar from top of the screen? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Passing class static factory as method parameter in Dart

I'm currently attempting to abstract making different HTTP requests by using generics. I'm using json_serializale for ... 'm attempting to do. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Specific min and max size for expanded widgets in Column

I have a Column with a set of Expanded widgets. Is there a way to control the range in which they expand? I ... than 50 and bigger than 200. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Specific min and max size for expanded widgets in Column

I have a Column with a set of Expanded widgets. Is there a way to control the range in which they expand? I ... than 50 and bigger than 200. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - 'showSnackBar' is deprecated and shouldn't be used

Trying to figure out this flutter problem. The below code has the showSnackbar as deprecated, and am trying to figure out ... failed")) ); } }, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - How to copy List<T> in dart without old reference?

Code will explain all: //modal for list class MyModal { int myField1; List<MyModal> adjacentNodes; MyModal( ... affecting the original list? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Get the name of a Dart class as a Type or String

Problem I need to solve Is there a way to get the class name of a dart class as a String or a Type ... , can you propose a better solution? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - How get moving text in widget with given width

I am building a radio app. Like in Spotify, there is a bar with the current title and artist, the text should be in ... : widget.text, ), ), ); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Mimic iOS contact form AppBar

I'm trying to mimic iOS contact form app bar. expanded collapsed Here is where I get so far Main ... Any help with this greatly appreciated See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - FlutterError (setState() called after dispose(): (lifecycle state: defunct, not mounted)

the error is thrown in two areas (and the app freezes (when the app is minimized, when phones back ... migration which was recently updated). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Changing speed of InkWell

I am having trouble replicating a normal settings menu in Flutter. I am using an InkWell to try to create the ... to slow down the InkWell. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter dynamic expansionTile

Looking for some guidance on building expansionTile list dynamically. I have a successful Listview built dynamically from json API ... ], ); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - SliverAppBar with TabBar

How can I add TabBar to SliverAppBar in Flutter? So far when I add a bottom to SliverAppBar, title gets pinned to those tabs ... ), ], ), ); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Making an Image widget disabled / grayed out

I have a bunch of Image widgets which when in a disabled state, should look grayed out. Is there a way ... instead of having the single asset. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - How to print Firestore timestamp as formatted date and time

My timestamp returns Timestamp(seconds=1560523991, nanoseconds=286000000) in a Flutter Firestore snapshot. I want to print it ... 2019, 2:19 PM' See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Remove HTML tags from a String in Dart

I've been trying to achieve this for a while, I have a string which contains a lot of HTML tags in it which ... that I can get a plain string? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Add/Subtract months/years to date in dart?

I saw that in dart there is a class Duration but it cant be used add/subtract years or month. How did ... dart or something around? Thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Scrolling priority when combining horizontal scrolling with WebView

I have a vertically scrolling WebView inside a horizontally scrolling PageView. Something like this: PageView.builder ... be highly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Dart datatype naming convention.. Why String instead of string

In dart/Flutter all basic data types name are defined in small case int bool double etc.. Then why string ... became String instead of string ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - How do I collect a loop through a list from http in JSON

I'm learning Flutter, but I've been a dev for a while now. I'm using one of my sites to make it ... something simple like the title and bodies? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - How to download android emulator without using android studio

I am unable to download android emulator using Android Studio due to filtering. So how can I download the emulator ... any website to do so? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Firebase Firestore Error: The operator '[]' isn't defined for the class 'Object'

im learning how to connect flutter app to firebase from this video https://youtu.be/ggYTQn4WVuw For me ... problem with Android Studio? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Can i store a Map<String, Object> inside a Shared Preferences in dart?

Is there a way that we could save a map object into shared preferences so that we can fetch the data from ... a workaround. Many Thanks, Mahi See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.9k views

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flutter - Refresh indicator without scrollview

I know with a ListView or SingleChildScrollView RefreshIndicator just works natively but I want to use a RefreshIndicator on ... and if so, how? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.9k views

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flutter - BoxConstraints forces an infinite width

I am getting an error when I add a row in a column. I am getting the following error: I/flutter ( 6449): ══╡ ... txtLastName ], ), ], ), ); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Understand how listen: false works when used with Provider<SomeType>.of(context, listen: false)

I'm working through understanding how the Provider package works with Flutter but confused on how listen:false works. I wrote ... ), ), ); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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