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Update examples to match new build system #10
Description
The new build system (the gradle stuff) is actually relatively nice (although it took me a whole day to figure out all of the details) and removes the need for the android tool.
I don't have time to update the examples right now and would also like to reduce some of the ridiculous boilerplate before that. I'll just document the most interesting ingredients here for later/others. I'll have more time in a couple of weeks.
It may be possible to shorten this a bit, but this is the conventional setup. The root (build) folder should contain these files for packing a .so into an apk with a native activity:
/build.gradle - top level build file (boilerplate)
/setting.gradle - this where the actual build file is includes (boilerplate)
/gradlew (boilerplate to make this work on independent of systems gradle version)
/gradle (boilerplate to make this work on independent of systems gradle version)
/app/build.gradle - actual build file
/app/src/main/AndroidManifest.xml
/app/src/main/jniLibs/armeabi-v7a/libexample.so - put the compiled go library here
/app/src/main/assets - put assets here
Running gradle(w) build will produce an apk.
build.gradle
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.0'
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
/settings.gradle
include ':app'
/app/build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion = 24
buildToolsVersion = '25.0.0'
defaultConfig {
applicationId = 'com.example.native_activity'
minSdkVersion 24
targetSdkVersion 24
ndk {
abiFilters 'armeabi-v7a'
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
jniDebuggable true
}
}
}
Activity
xlab commentedon Aug 15, 2017
This is an amazing contribution, dude!
The build process haunted me for so long, especially in the light of recent NDK updates..
I will try to find hours as well to re-organise all examples. They are mostly boiler-plate all along.
FlorianUekermann commentedon Aug 15, 2017
Yep :-), me too, coming up with this was not fun. I wish the official docs were better for the "I can compile on my own, just make an apk already" case.
xlab commentedon Oct 3, 2017
Reopening as examples need some care from me.
atlazar commentedon Oct 29, 2017
I'm updating example-egl to gradle here. I switch to Gradle build system as a entry point (because currently this is default Android build system). Currently first version works and I was able to build and deploy example-egl by single command:
gradle installDebugI'm planning to improve multi-arch support (arm and x86 for example) and refactor my
.shscripts. After what I'll open PR.