Coding Forums

large image when clicking – flutter

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import ‘dart:async’; import ‘package:cached_network_image/cached_network_image.dart’; import ‘package:cloud_firestore/cloud_firestore.dart’; import ‘package:flutter/cupertino.dart’; import ‘package:flutter/material.dart’; import ‘package:font_awesome_flutter/font_awesome_flutter.dart’; import ‘package:tienda/models/productos_model.dart’; import ‘package:tienda/pages/otra_pagina.dart’; import ‘package:tienda/pages/crear_productos.dart’; import ‘package:tienda/pages/pedido_lista.dart’; import ‘package:tienda/services/firebase_services.dart’; import ‘package:tienda/widgets/header.dart’; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( debugShowCheckedModeBanner: false, //title: ‘Flutter Demo’, … Read more

tomcat9 – Create reasoner does not work on Tomcat deployment

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Context: I am working on a Java Spring Boot web application that manipulates OWL and RDF data for various tasks (ontology loading, consistency, inconsistency explanations generations and querying thru SPARQL). I am using OWLAPI, HermiT, OWLExplanation and ONTAPI libraries (dependencies below). When I run the application using the tomcat embedded in Intellij, everything works fine. … Read more

Creating a singleton in Python

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Use a Metaclass I would recommend Method #2but you’re better off using a metaclass than a base class. Here is a sample implementation: class Singleton(type): _instances = {} def __call__(cls, *args, **kwargs): if cls not in cls._instances: cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs) return cls._instances[cls] class Logger(object): __metaclass__ = Singleton Or in Python3 class Logger(metaclass=Singleton): pass … Read more

php – Edit and Updating Data in Laravel

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I am having some trouble editing data in Laravel. Here’s the button to show Edit view: {{ Form::open(array(‘route’ => array(‘edit_spk’, ‘id’=> $spk_data->id), ‘method’ => ‘GET’, ‘style’ => ‘display:inline’)) }} <button class=”btn btn-success btn-line btn-rect”> <i class=”icon-pencil icon-white”></i> Edit </button> {{Form::close()}} Here’s the route: Route::get(‘spk/edit/{id}’, array(‘as’=>’edit_spk’,’uses’=>’SpkController@edit’)); Route::put(‘spk/update/{id}’, array(‘as’=>’update_spk’,’uses’=>’SpkController@update’)); Here’s the controller: public function edit($id){ $spk = … Read more

html – Add dynamic loading messages with APP_INITIALIZER

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Updated Question: HOW COULD I ADD A COMPONENT TO AN APP_INITIALIZER? I have an app which do some backend calls before initializing. I have a loading screen for this, which tells the user that something is currently loading. The problem is that I also want to show what is currently loading. If one of the … Read more