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Questions tagged [flutter]

皇冠hg0088代理网址 Flutter is an open-source UI software development kit created by Google. It is used to develop applications for Android, iOS, Linux, Mac, Windows, Google Fuchsia and the web from a single codebase.

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How can i stop a Flutter animation after a given period of time?

Id like to stop a LinearProgressIndicator 5 seconds after navigating to its screen automatically, but i cant understand how to do it properly. When calling controller.stop inside initState it makes ...
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Is there a better way to make this splash screen layout?

I had been thinking about to how to make this simple layout: The solution that I came up looks like this: import 'package:flutter/material.dart'; class SplashScreen extends StatelessWidget { @...
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What is the best way to store image in device using Flutter

I was trying to save gallery image file using image picker. I don't know it's not saving in directory. So I decided to store it in database. How to store image in sqlite database? Image storing as ...
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What is difference between Element and RenderObject in Flutter?

I am confusing between Widget and Element and RenderObject in Flutter. As I know, UI displayed on the screen is Element, a Widget is only a blueprint. The document says: An Element is an instantiation ...
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how to only get the ip from this multi line string in Flutter

hey guys i were trying to get my local ip address. and i found this way using NetworkInterface list. put when i try to use the ip i got these three lines. and i only want the ip, so dose anyone knows ...
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I am not sure what getter I need to use to authenticate users in firebase. I am using _firebaseAuth but it gives me an error

This is my code. The error I am receiving is that: You should not use this getter to determine the users current state, instead use [authStateChanges], [idTokenChanges] or [userChanges] to subscribe ...
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flutter_webview_plugin 0.3.11 does not display local HTML file when there is no internet connection

I am trying to build an app using flutter_webview_plugin 0.3.11. Unfortunately, i cannot figure it out how to display static HTML when there is no internet connection. As per the code below, when ...
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Flutter - How to trigger push notification from an app to subscribed topic

I finished coding my first flutter app, but i am searching for hours of how to trigger push notification to a subscribed topic from an admin app via a button (send notification) without accessing the ...
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Can I launch an URL, with help of an FCM notification in flutter or AndroidAlarmManager at a scheduled time?

In my case I don't want user to tap on the notification. Once the notification arrives at a scheduled time, the app should launch the url. I'm saving the url in Shared Preferences. It it possible to ...
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Connection Xiaomi MiBand 3 with Dart Language (Flutter) #689

Good afternoon, I need to integrate the xiaomi smart bracelet (miband 3) in the Dart language (Flutter), but I am having difficulty, there is very little support material regarding this integration ...
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Unable to load image from ../url.png file in flutter

I am new at flutter so may be it's a silly questions but it will helpful if someone instruct me what to do.Now my problem is i am getting following error Xcode build done. ...
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Flutter push notification using FCM by topic

hello I'm new to flutter and trying to get push notification in flutter , I have successfully subscribed the user to a topic and sent a notification through the firebase console by topic , what I'm ...
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How to decode Json in Dart

I have this below store as a update.json file in my server. { "Code": 2, "Msg": "Mullah", "UpdateStatus": 1, "VersionCode": 50, "VersionName&...
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Flutter: overriding text style for dropdown menu items cancels auto-display of disabled state

I have a PopupMenuButton with nested PopupMenuItems, each of them in turn have a nested Text. One of PopupMenuItems can be enabled/disabled which is controlled by the corresponding property and is ...
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E/flutter (24673): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: RangeError (index): Invalid value: Valid value range is empty: 0

Good morning all, i am getting this error when i click on "Add Place" on my emulator screen I/Choreographer(24673): Skipped 51 frames! The application may be doing too much work on ...

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