keno.basedow
Kotlin and Android Development featuring Jetpack: @string/na error (version B4.0 page 91)
Hi Michael,
line
android:text=’@{vm.currentPlayer.playerName ?? @string/na}’
produces error
…\PennyDrop\app\build\generated\source\kapt\debug\de\basedow\keno\pennydrop\databinding\FragmentGameBindingImpl.java:503: error: cannot find symbol
vmCurrentPlayerPlayerNameJavaLangObjectNullTextCurrentPlayerNameAndroidStringNaVmCurrentPlayerPlayerName = ((vmCurrentPlayerPlayerNameJavaLangObjectNull) ? (textCurrentPlayerName.getResources().getString(R.string.na)) : (vmCurrentPlayerPlayerName));
^
symbol: variable na
location: class string
i replaced it by
android:text=’@{vm.currentPlayer.playerName ?? “”}’
Kind regards Keno
Marked As Solved
mfazio23
Thanks Keno - this one isn’t actually an error since I mention the fallback resource value. However, I wasn’t super clear on what I meant there, so I’ve included an extra note about what exactly to add:
In case we don’t have a value for
currentPlayer(like before a game’s been started), we’re also going to add a fallback string resource value calledna(with the value “N/A”).
Popular Pragmatic Bookshelf topics
Modern Front-End Development for Rails - application does not start after run bin/setup (page xviii)
Other popular topics
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /wasm
- /ruby
- /erlang
- /phoenix
- /keyboards
- /python
- /js
- /rails
- /security
- /go
- /swift
- /vim
- /clojure
- /java
- /emacs
- /haskell
- /typescript
- /svelte
- /onivim
- /kotlin
- /c-plus-plus
- /crystal
- /tailwind
- /react
- /gleam
- /ocaml
- /elm
- /vscode
- /flutter
- /ash
- /html
- /deepseek
- /opensuse
- /zig
- /centos
- /php
- /scala
- /react-native
- /lisp
- /sublime-text
- /textmate
- /nixos
- /debian
- /agda
- /deno
- /django
- /kubuntu
- /arch-linux
- /nodejs
- /ubuntu
- /spring
- /revery
- /manjaro
- /lua
- /julia
- /diversity
- /quarkus
- /laravel
Devtalk Sponsors
Practical resources that improve the lives of professional developers.
We build trusted fault-tolerant systems that scale to billions of users.
Real-time error tracking, performance insights, and observability for devs.
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Develop your skills with books, videos, and courses.
Catch errors, track performance, monitor hosts and more.
Enabling companies to succeed by building software people love.
Courses that move you from confusion to "Aha, now I get it!"
Publishing Linux Magazine, ADMIN, and MakerSpace for 25+ years.