Current Smalltalk development activity

I'm now a couple of months into my Smalltalk learning voyage. I was aware, from the beginning that Smalltalk has several "dialects" (perhaps "dialect" isn't the best word) but by this I mean...

Android launch applications detail page

I'm working on an application where I list the installed applications with the package manager. I can get the package name of the item clicked, but I'd like to then launch the details screen based...

Javascript Storage Event Handler Returns Undefined

I am trying to troubleshoot this by capturing any storage events that remove values from local storage. I have an always open dummy page that begins an event listener on load as...

Window focus and blur events not working correctly on Android browser

I found out that Javascript focus and blur events does not fire correctly on the Android browser, when attached to window, document or body. I wrote a simple test script which is working correctly...

How to solve Installation failed due to invalid APK file?

I'm trying to build Dolphin Player, but I got his error: [2012-09-21 09:46:23 - DolphinPlayer] Installation failed due to invalid APK file! [2012-09-21 09:46:23 - DolphinPlayer] Please check...

What is the path to the JRE file?

I am looking for the path the the JRE file on Mac OS X 10.6.8. Or is there no such file? Is JRE just slang for an idea or concept? Java Runtime Environment is a real thing. Does it have a file? I...

What could be causing a System.TypeLoadException?

I'm developing, with VS2008 using C#, an application for Honeywell Dolphin 6100, a mobile computer with a barcode scanner that uses Windows CE 5.0 like OS. I want to add a functionality that can...

Random word guessing game

I want to create a word guessing game where the program randomly selects a word from my word list and the user has to guess the word. User can only guess one letter at a time. User is only...

Why my app crashes - received memory warning error on iOS 7

I'am trying to make a simple web browser with multiple tab feature. It actually works fine until open 10 or more tabs, it starts to give "Received memory warning." and crashes. I don't understand;...

Can't get app.config value "connectionStrings"?

I am writing a program in visual studio,now i can't get the value of app.config.My app.config look like this: <?xml version="1.0"?> <configuration> <connectionStrings> <add...

Using custom instance when deriving an instance via GeneralizedNewtypeDeriving

Suppose that we have a typeclass class (A a, B a) => C a where. Using newtype will allow us to clone a data type and then automatically derive the instances via the GeneralizedNewtypeDeriving...

Android - Honeywell Dolphin - How to detect Laser Scanner

I hope find some help from anyone who has worked on Honeywell Dolphin devices. I'm developing an Android barcode/qr code scan app for multi-devices and the major devices are Dolphin devices. (e.g...

Android how to play different sound for each item in recyclerview

I build app with images of animals, and after you click on animal, its play sound for that animal. I use Recyclerview for displaying all animals items. My problem is that i do not know how to...

Error loading type library/DLL (TeeChart.TChart.10)

We had no problem with an older version (TeeChart.TChart.7) but recently we installed TeeChart.TChart.10 and started to have an issue in our runtime application. Our problem is that whenever we...

return rows in laravel that are not empty

I have the following output that I am getting from the laravel and I am inserting them in to selectbox as an option. But for the lunch option my last options are empty. How can I return rows in...

Square POS Web API Android browser error

having an issue with Square POS Web API on Android. We are trying to implement a kiosk app and the kiosk browser is Android based. If run in Chrome browser the Square app loads fine with no error...

Moving QSlider to Mouse Click Position

I have a QSlider that I want to move to the position of the mouse cursor when the user presses the left mouse button. I've been hunting around and couldn't find anything that was recent and solved...

How to move items up or down a listbox in Tkinter without losing their selection?

I have the below code which creates a simple listbox and allows users to select the item and move them up or down the list, thereby rearranging the list. The issue I have right now is every time I...

ERROR: attach: task_for_pid(23990) failed: '(os/kern) failure'

I start jstatd in server: /opt/dabai/tools/jdk1.8.0_211/bin/jstatd -J-Djava.rmi.server.hostname=172.19.150.82 \ -J-Djava.security.policy=/opt/dabai/tools/jdk1.8.0_211/bin/jstatd.all.policy...

fatal: Could not read from remote repository npm install

When I am running npm install in Mac: sudo npm install --save umi/dynamic umi/link umi/navlink umi/redirect umi/router umi/withRouter throws this error: npm ERR! Error while executing: npm ERR!...

How to add shred to KDE context menu for safe deletion of file/folder?

How to add the shred utility to the context menu in Dolphin (Linux Mint 18 KDE) for removing files and folders?

Flutter web - Unsupported operation: InternetAddress.LOOPBACK_IP_V4

I wanted to try out the flutter HttpServer library but stucked a the very beginning. import 'dart:io'; void main() async { var server = await HttpServer.bind(InternetAddress.loopbackIPv4,...

Target of URI doesn't exist: 'package:flutter_gen/gen_l10n/gallery_localizations.dart'

I am now using flutter gallary in my project, this is the package reference: import 'package:flutter_gen/gen_l10n/gallery_localizations.dart'; but it shows: Target of URI doesn't exist:...

I am getting issue with drupal VM while running blt vm command on my mac terminal getting issue

TASK [geerlingguy.composer : Add GitHub OAuth token for Composer (if configured).] *** skipping: [novartis-dolphin] TASK [geerlingguy.composer : include_tasks]...

fatal error: 'Flutter/Flutter.h' file not found

when I compile my project in mac book pro, shows this error: Xcode's output: ↳ In file included from...

The compiler failed to generate an executable file. (RuntimeError) when install unf_ext in macOS

when I am using this command in macOS 10.15.7 to install unf_ext: sudo gem install unf_ext -v '0.0.7.7' --source 'https://gems.ruby-china.com' shows this...

You can't map a property that does not exist: propertyName=baseName when build using gradle 7.0

Today I upgrade my Gradle version to 7.0, but when I compile the project, shows this error: [[email protected]]~/Documents/GitHub/retire/dolphin-post% ./gradlew test FAILURE: Build failed...

Xdnd drop support faulty implementation

I have implemented a Xdnd drop support implementation in VTK some time ago. It was working great except with Thunar file manager. All other file managers were working fine at the time. We...

seems no-sound-null-safety parameter not work in flutter 2.2.1

I am upgrade my flutter to version 2.2.1, but it seems --no-sound-null-safety no longer avaliable when build the ios package. I am build the project using this command: ~/apps/flutter/bin/flutter...

what should I do if the project name contains hyphen in rust

I am a newbie of rust, when I tried to write a rust web api, but the project contains hyphen so I could not use it, if the project name like diesel_demo, I could use it like this: use...