Passing data between fragments using SafeArgs

Android & iOS development, Kotlin & Java

App Gradle plugins { id ‘androidx.navigation.safeargs.kotlin Project Gradle dependencies { classpath “androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5″ nav_graph.xml <fragment> <action android:id=”@+id/action_SecondFragment_to_FirstFragment” app:destination=”@id/FirstFragment” /> <argument android:name=”myArg” app:argType=”integer” /> FirstFragment import com.example.codelabsfirstappwithkotlin.databinding.FragmentFirstBinding val action = FirstFragmentDirections.actionFirstFragmentToSecondFragment(currentCount) findNavController().navigate(action) SecondFragment import androidx.navigation.fragment.navArgs val args: SecondFragmentArgs by navArgs() val count = args.myArg

Docker Commands Cheatsheet

DevOps & Automation

Reminder: A Container is a running instance of an Image Docker CLI commands Command Meaning docker info This command displays system wide information regarding the Docker installation docker pull download an image from dockerhub docker images show list of locally available docker image docker start start container docker stop stop container docker run pulls image,…

How I learned to love the Bash

DevOps & Automation

My tale of woe When I started to write my first ebook I decided to use pandoc to transform markdown into pdf. It basically looked like this pandoc metadata_de.yaml -o ./level_up_de.pdf –from markdown -V lang=de-DE level_up_de.md This simple command can be pasted into the command line everytime I want to build a new version of…

How to use an AVAudioPlayer in iOS with Swift 5

Android & iOS development

If you write an app that should play sound here is a snippet for you import AVFoundation var player: AVAudioPlayer? let url = Bundle.main.path(forResource: “richtig”, ofType: “wav”) do { try AVAudioSession.sharedInstance().setMode(.default) try AVAudioSession.sharedInstance().setActive(true, options: .notifyOthersOnDeactivation) guard let url = url else { return } player = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: url)) } catch { print(“Something went…

Play sound on Android

Android & iOS development, Kotlin & Java

Motivation When writing app you sometimes want to play some sounds e.g. for notifications. In Android this can be accomplished by using the SoundPool class. Resource files Resource files e.g. your wav shall be placed under app\src\main\res\raw Code snippet This is a working example for playing short sound files. If you want to make a…