In Dart/Flutter, given a Mandarin word "中", how to get the Unicode hex (4E2D) or decimal (20013) value? I get the value from this website. I can only convert the word into hex by doing HEX.encode(utf8.encode("中"));, which is not the…
I'm creating a splash screen using the native splash screen package. I tried to give a GIF image in the background of the splash screen. But it didn't work. Is there a way to render a GIF image in a…
I have two functions where the first one is supposed to return the records for this month and the second one is suppsoed to return the records from last month, but they are both returning the records for this month.…
I want a button to always appear in the screen, doesnt matter how much a scroll, i just want the button to be in a fixed button on the screen, kind of like above the text
I'm a beginner programmer trying to create a mental health app. In Calendar screen you can press on a date and you're forwarded to Journal Entry screen where you can select a mood in a DropdownButtonFormField and write a journal…
Am getting this error in flutter, dart. '_InternalLinkedHashMap<String, dynamic>' is not a subtype of type 'List' The Model used is, import 'dart:convert'; Areas areasFromJson(String str) => Areas.fromJson(json.decode(str)); String areasToJson(Areas data) => json.encode(data.toJson()); class Areas { bool success; Data data; String…
I want to delete the whole collection using Flutter. So the entire student section I want to be gone. I only found deleting single documents... and I don't want to delete every document manually. How do I automate that using…
I am not use sqflite in my project. but message throw FAILURE: Build completed with 2 failures. 1: Task failed with an exception. Where: Build file 'C:UsersomorAppDataLocalPubCachehostedpub.devsqflite-2.2.8androidbuild.gradle' line: 32 What went wrong: A problem occurred evaluating project ':sqflite'. No signature…
I followed the following tutorial on the official site for sqflite: https://pub.dev/packages/sqflite But on this line var databasesPath = await getDatabasesPath(); I get the following error: Exception has occurred. StateError (Bad state: databaseFactory not initialized databaseFactory is only initialized when…
I would like to display a custom loading image right after a page loads, like the example in the first block of code below. The loading screen should be visible until I get a response from async HTTP request, after…