我想生成一些 APK(x86、armeabi-v7a)。为了减小 APK 在 Google Play 中的大小
但是它不起作用。 Android studia 说 import com.android.build.OutputFile - 无法解析符号“OutputFile”。在控制台中我看到了。我尝试在谷歌中搜索其他说明并尝试自己做一些事情,但我不擅长 gradle
错误:无法在空对象上调用 multiply() 方法
我的gradle文件是
// map for the version code
ext.versionCodes = ['armeabi-v7a':1, 'armeabi':2, 'x86':3]
import com.android.build.OutputFile
android.applicationVariants.all { variant ->
// assign different version code for each output
variant.outputs.each { output ->
output.versionCodeOverride =
project.ext.versionCodes.get(output.getFilter(OutputFile.ABI)) * 1000000 + android.defaultConfig.versionCode
}
}
android {
buildToolsVersion "20.0.0"
compileSdkVersion 20
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
java.srcDirs = ['src']
aidl.srcDirs = ['src']
renderscript.srcDirs = ['src']
res.srcDirs = ['res']
assets.srcDirs = ['assets']
}
instrumentTest.setRoot('tests')
}
defaultConfig {
versionCode 11
versionName '1.3'
}
productFlavors {
}
splits {
abi {
enable true
reset()
include 'x86', 'armeabi-v7a', 'armeabi'
universalApk true
}
}
}
// needed to add JNI shared libraries to APK when compiling on CLI
tasks.withType(com.android.build.gradle.tasks.PackageApplication) { pkgTask ->
pkgTask.jniFolders = new HashSet<File>()
pkgTask.jniFolders.add(new File(projectDir, '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("libs/armeabi/").mkdirs();
file("libs/armeabi-v7a/").mkdirs();
file("libs/x86/").mkdirs();
configurations.natives.files.each { jar ->
def outputDir = null
if (jar.name.endsWith("natives-armeabi-v7a.jar")) outputDir = file("libs/armeabi-v7a")
if (jar.name.endsWith("natives-armeabi.jar")) outputDir = file("libs/armeabi")
if (jar.name.endsWith("natives-x86.jar")) outputDir = file("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', 'com.mygdx.crazyball.android/com.mygdx.crazyball.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 {
}
最佳答案
看起来它在尝试获取 universal APK 的 ABI 时失败了,因为在您的 versionCodes
映射中没有过滤器。在以某种方式应用乘法之前,您应该检查 output.getFilter(OutputFile.ABI)
的结果,例如:
android.applicationVariants.all { variant ->
// assign different version code for each output
variant.outputs.each { output ->
def abiFilter = output.getFilter(OutputFile.ABI)
def abiMultiplier = 0
if (abiFilter != null) {
abiMultiplier = project.ext.versionCodes.get(abiFilter)
}
output.versionCodeOverride =
abiMultiplier * 1000000 + android.defaultConfig.versionCode
}
}
关于android - 如何生成多个 apk(使用 gradle、libGDX),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29127393/