class Questions

Android Studio – Android sending .getClass() to another class function

July 11, 2022
StealthRT
2 Answers

Hey all I am having an issue fixing the following error: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxxxxxxxxxxx/com.xxxxxxxxxxx.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.reflect.Method.getName()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)…

VIEW QUESTION

Toggle class(or change style) of element when element in clicked, Vuejs – Twitter API

May 26, 2022
Edin Osmic
2 Answers

The way i am getting data is little bit complicated. I have "tweets" array where data is stored and each tweet is a card where i successfully change style when card is clicked(markTweet function), but there are also replies for…

VIEW QUESTION

Android Studio – How to make a customizable color menu for flutter app?

May 17, 2022
Lear
2 Answers

I'd like to make an external dart file (let's call it color_palette.dart), that have some classes of colors. These classes would be able to be changed by a menu on another page of the app. These colors would be used…

VIEW QUESTION

I need to find all elements with the same class name and address the first one – WordPress

February 2, 2022
Arne Teubel
2 Answers

I have a problem and I am not sure how to solve it or if it's even possible: in WordPress I have built a simple event calender. Now I want to style every first event of a certain date. How…

VIEW QUESTION

Escaping closure captures mutating 'self' parameter: struct – Ios swift

January 10, 2022
Richard Topchii
2 Answers

I have the following code I'm using with SwiftUI: import Foundation public struct Trigger { public var value = false public mutating func toggle() { value = true let responseDate = Date().advanced(by: 3) OperationQueue.main.schedule(after: .init(responseDate)) { moveBack() } } private…

VIEW QUESTION

PHP 8.1.1 issue with __toString() Method – causing Class not found if instance created before declaration of class itself – PHP Versions

January 7, 2022
Chada
2 Answers

I have an issue after upgrade from PHP 7.3 to 8.1.1 There is lot to be done of course, but this is kind of weird. This example is not working for me with error Fatal error: Uncaught Error: Class "TestC"…

VIEW QUESTION

Access data / functions from several view controllers – Ios swift

December 27, 2021
Marco703
2 Answers

I am trying to build an app with several screens. Every screen should have different buttons which all call one function. My problem is that I do not understand how to call one function from different view controllers with input…

VIEW QUESTION

Writing class for different JSON files – Shopify

December 16, 2021
Snehanshu Bhattacharya
2 Answers

I have recently started my journey in Flutter(Dart). I am trying to build an application which fetches some JSON information using an API call. I have successfully written a code for the following JSON file [ { "on_api": "1", "tl_api":…

VIEW QUESTION

How to solve "call to undefined function …" problem in PHP 7.4.5, XAMPP 3.2.4, Windows 10 x64? – PHP Versions

September 27, 2021
BorisNY
3 Answers

I use PHP 7.4.5 and Apache 2.0 on XAMPP 3.2.4 on Windows 10 x64. PHP API version is 20190902. I created a .php file in the 'htdocs' directory, then in that file defined a class with variables and a function,…

VIEW QUESTION

Divi theme – Add CSS class to all heading HTML elements?

September 20, 2021
Colin de Deugd
5 Answers

I'm currently working on a website for some school assignments. I am using Wordpress with the Divi theme. Online I found some CSS code, which lets me add a colored line under my text. I've been using this on all…

VIEW QUESTION