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https://github.com/ikskuh/ZigAndroidTemplate
This repository contains a example on how to create a minimal Android app in Zig.
https://github.com/ikskuh/ZigAndroidTemplate
android android-support app-framework zig zig-package ziglang
Last synced: 5 days ago
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This repository contains a example on how to create a minimal Android app in Zig.
- Host: GitHub
- URL: https://github.com/ikskuh/ZigAndroidTemplate
- Owner: ikskuh
- License: mit
- Created: 2020-07-25T15:59:33.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2023-12-18T19:31:29.000Z (11 months ago)
- Last Synced: 2024-11-06T12:34:15.086Z (7 days ago)
- Topics: android, android-support, app-framework, zig, zig-package, ziglang
- Language: Zig
- Homepage:
- Size: 1.21 MB
- Stars: 340
- Watchers: 11
- Forks: 32
- Open Issues: 15
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Android Apps in Zig
This repository contains multiple examples of creating a minimal Android app in Zig.
## Examples
There are 4 different examples. The examples have no dependencies on C code except for the android libraries, so they can be considered pure Zig apps.
To select which example to build and run, pass the example flag (e.g. `-Dexample=egl`). Valid values for the example flag are `egl`, `minimal`, `textview`, and `invocationhandler`.
We're running a CI that will verify the build for Windows, macOS and Linux:
[](https://github.com/MasterQ32/ZigAndroidTemplate/actions/workflows/main-ci.yml)
### Minimal
`examples/minimal` includes just enough code to get the app running.
### EGL
`examples/egl/` initializes OpenGL and renders a color cycle. Touchscreen events will activate a sine wave synth and be displayed as small circles beneath the fingers that will fade as soon as no event for the same finger will happen again.
The code contains some commented examples on how to interface with the JNI to use advanced features of the `ANativeActivity`.
### Textview
`examples/textview/` creates a Textview component with Android's built-in UI to display "Hello, World!".
### InvocationHandler
`examples/invocationhandler` builds on the textview example. It shows how to pass a callback to the JNI by creating a button component that reacts to being pressed.
## Presentation
There is a [FOSDEM Talk](https://fosdem.org/2021/schedule/event/zig_android/) you can watch here:
- [MP4 Video](https://video.fosdem.org/2021/D.zig/zig_android.mp4)
- [WebM Video](https://video.fosdem.org/2021/D.zig/zig_android.webm)
Since the time of recording ZigAndroidTemplate has changed in some major ways.
## What's missing
- Configuration management example
- Save/load app state example
## Requirements & Build
You need the [Android SDK](https://developer.android.com/studio#command-tools) installed together with the [Android NDK](https://developer.android.com/ndk).
You also need [adb](https://developer.android.com/studio/command-line/adb) and a Java SDK installed (required for `jarsigner`).
Now you need to generate yourself a keystore to sign your apps. For debugging purposes, the build script contains a helper. Just invoke `zig build keystore` to generate yourself a debug keystore that can be used with later build invocations.
**Note** that the build file might ask you to configure some paths. Do as requested and just run the build again, it should work then.
If all of the above is done, you should be able to build the app by running `zig build`.
There are convenience options with `zig build push` (installs the app on a connected phone) and `zig build run` (which installs, then runs the app).
### Quick Start
Install the [`sdkmanager`](https://developer.android.com/studio/command-line/sdkmanager) and invoke the following command line:
```
# Android Platforms for your target Android version
# Min version: Android 5
sdkmanager --install "platforms;android-21"
# you can install other versions as well
# remember to set it like `zig build -Dandroid=android99`
sdkmanager --install "build-tools;33.0.1"
sdkmanager --install "ndk;25.1.8937393"
zig build keystore install run
```
This should build an APK and install it on your connected phone if possible.
## Getting started
Check out the [`build.zig`](build.zig) to see how to build a new android app. The [`examples`](examples/) folder has multiple examples for making minimal android apps.
## Credits
Huge thanks to [@cnlohr](https://github.com/cnlohr) to create [rawdrawandroid](https://github.com/cnlohr/rawdrawandroid) and making this project possible!