对于一个小游戏项目，我们必须使用gradle-experimental来包含shared library并使用NDK，对于图形我们使用libgdx。
之前，我们没有使用实验gradle和libgdx工作，但现在我们有一个例外：
FATAL EXCEPTION: main
Process: eu.epitech.gomoku.android, PID: 28180
java.lang.ExceptionInInitializerError
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Couldn't load shared library 'gdx' for target: Linux, 32-bit
at com.badlogic.gdx.utils.SharedLibraryLoader.load(SharedLibraryLoader.java:118)
at com.badlogic.gdx.utils.GdxNativesLoader.load(GdxNativesLoader.java:34)
at com.badlogic.gdx.backends.android.AndroidApplication.<clinit>(AndroidApplication.java:61)
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Caused by: java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/eu.epitech.gomoku.android-1/base.apk"],nativeLibraryDirectories=[/data/app/eu.epitech.gomoku.android-1/lib/arm64, /data/app/eu.epitech.gomoku.android-1/base.apk!/lib/arm64-v8a, /vendor/lib64, /system/lib64]]] couldn't find "libgdx.so"
at java.lang.Runtime.loadLibrary(Runtime.java:367)
at java.lang.System.loadLibrary(System.java:1076)
at com.badlogic.gdx.utils.SharedLibraryLoader.load(SharedLibraryLoader.java:113)
at com.badlogic.gdx.utils.GdxNativesLoader.load(GdxNativesLoader.java:34)
at com.badlogic.gdx.backends.android.AndroidApplication.<clinit>(AndroidApplication.java:61)
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1090)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
我的gradle文件：
ProjectRoot
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle-experimental:0.4.0'
}
}
allprojects {
apply plugin: "eclipse"
apply plugin: "idea"
version = '1.0'
ext {
appName = "Gomoku"
gdxVersion = '1.7.1'
roboVMVersion = '1.9.0'
box2DLightsVersion = '1.4'
ashleyVersion = '1.7.0'
aiVersion = '1.6.0'
}
repositories {
jcenter()
}
}
project(":android") {
apply plugin: "com.android.model.application"
configurations { natives }
dependencies {
compile project(":core")
compile "com.badlogicgames.gdx:gdx-backend-android:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-x86"
compile "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-armeabi-v7a"
natives "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-x86"
}
}
project(":core") {
apply plugin: "java"
dependencies {
compile "com.badlogicgames.gdx:gdx:$gdxVersion"
compile "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
}
}
tasks.eclipse.doLast {
delete ".project"
}
Android文件夹：
apply plugin: 'com.android.model.application'
model {
android {
compileSdkVersion = 23
buildToolsVersion = "23.0.2"
defaultConfig.with {
applicationId = "eu.epitech.gomoku.android"
minSdkVersion.apiLevel = 15
targetSdkVersion.apiLevel = 23
versionCode = 4
versionName = "1.0.1"
}
}
android.ndk {
moduleName = "GomokuRules"
cppFlags.add("-I${file("jni/headers/")}".toString())
stl = "c++_shared"
}
android.buildTypes {
release {
minifyEnabled = false
proguardFiles.add(file("proguard-rules.pro"))
}
}
android.productFlavors {
// for detailed abiFilter descriptions, refer to "Supported ABIs" @
// https://developer.android.com/ndk/guides/abis.html#sa
create("arm") {
ndk.abiFilters.add("armeabi")
}
create("arm7") {
ndk.abiFilters.add("armeabi-v7a")
}
create("arm8") {
ndk.abiFilters.add("arm64-v8a")
}
create("x86") {
ndk.abiFilters.add("x86")
}
create("x86-64") {
ndk.abiFilters.add("x86_64")
}
create("mips") {
ndk.abiFilters.add("mips")
}
create("mips-64") {
ndk.abiFilters.add("mips64")
}
// To include all cpu architectures, leaves abiFilters empty
create("all")
}
android.sources {
main {
manifest {
source {
srcDir '.'
include 'AndroidManifest.xml'
}
}
resources {
source {
srcDir 'res/'
}
}
assets {
source {
srcDir 'assets/'
}
}
java {
source {
srcDir 'src/eu/epitech/gomoku/android/'
}
}
jniLibs {
source {
srcDir 'libs/'
}
}
}
}
}
// called every time gradle gets executed, takes the native dependencies of
// the natives configuration, and extracts them to the proper libs/ folders
// so they get packed with the APK.
task copyAndroidNatives() {
file("src/main/libs/armeabi/").mkdirs();
file("src/main/libs/armeabi-v7a/").mkdirs();
file("src/main/libs/x86/").mkdirs();
configurations.natives.files.each { jar ->
def outputDir = null
if (jar.name.endsWith("natives-armeabi-v7a.jar")) outputDir = file("src/main/libs/armeabi-v7a")
if (jar.name.endsWith("natives-armeabi.jar")) outputDir = file("src/main/libs/armeabi")
if (jar.name.endsWith("natives-x86.jar")) outputDir = file("src/main/libs/x86")
if (outputDir != null) {
copy {
from zipTree(jar)
into outputDir
include "*.so"
}
}
}
}
task run(type: Exec) {
def path
def localProperties = project.file("../local.properties")
if (localProperties.exists()) {
Properties properties = new Properties()
localProperties.withInputStream { instr ->
properties.load(instr)
}
def sdkDir = properties.getProperty('sdk.dir')
if (sdkDir) {
path = sdkDir
} else {
path = "$System.env.ANDROID_HOME"
}
} else {
path = "$System.env.ANDROID_HOME"
}
def adb = path + "/platform-tools/adb"
commandLine "$adb", 'shell', 'am', 'start', '-n', 'eu.epitech.gomoku.android/eu.epitech.gomoku.android.AndroidLauncher'
}
// sets up the Android Eclipse project, using the old Ant based build.
eclipse {
// need to specify Java source sets explicitely, SpringSource Gradle Eclipse plugin
// ignores any nodes added in classpath.file.withXml
sourceSets {
main {
java.srcDirs "src", 'gen'
}
}
jdt {
sourceCompatibility = 1.6
targetCompatibility = 1.6
}
classpath {
plusConfigurations += [project.configurations.compile]
containers 'com.android.ide.eclipse.adt.ANDROID_FRAMEWORK', 'com.android.ide.eclipse.adt.LIBRARIES'
}
project {
name = appName + "-android"
natures 'com.android.ide.eclipse.adt.AndroidNature'
buildCommands.clear();
buildCommand "com.android.ide.eclipse.adt.ResourceManagerBuilder"
buildCommand "com.android.ide.eclipse.adt.PreCompilerBuilder"
buildCommand "org.eclipse.jdt.core.javabuilder"
buildCommand "com.android.ide.eclipse.adt.ApkBuilder"
}
}
// sets up the Android Idea project, using the old Ant based build.
idea {
module {
sourceDirs += file("src");scopes = [ COMPILE: [plus: [project.configurations.compile]]]
iml {
withXml {
def node = it.asNode()
def builder = NodeBuilder.newInstance();
builder.current = node;
builder.component(name: "FacetManager") {
facet(type: "android", name: "Android") {
configuration {
option(name: "UPDATE_PROPERTY_FILES" , value:"true")
}
}
}
}
}
}
}
dependencies {
compile 'com.android.support:support-v4:23.+'
}