问题
I am having difficulties with MultiDex. I have enabled it in Gradle (multiDexEnabled true) and main class is calling MultiDex.install in attachBaseContext.
I suspect the Gradle is not adding MultiDexExtractor class to first dex file (it is not in maindexlist_deobfuscated.txt).
Snippet from log:
06-03 07:56:59.030 4088-4088/xxx.android I/dalvikvm: Could not find method android.support.multidex.MultiDexExtractor.verifyZipFile, referenced from method android.support.multidex.MultiDex.checkValidZipFiles
06-03 07:56:59.030 4088-4088/xxx.android W/dalvikvm: VFY: unable to resolve static method 195: Landroid/support/multidex/MultiDexExtractor;.verifyZipFile (Ljava/io/File;)Z
06-03 07:56:59.030 4088-4088/xxx.android D/dalvikvm: VFY: replacing opcode 0x71 at 0x0010
Exception:
06-03 07:56:59.030 4088-4088/xxx.android E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: android.support.multidex.MultiDexExtractor
at android.support.multidex.MultiDex.install(Unknown Source)
at xxx.android.AndroidLauncher.attachBaseContext(Unknown Source)
at android.app.Activity.attach(Activity.java:4965)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2008)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Do I have to (no idea how) modify a list which is generated by Gradle or is problem somewhere else? How do I make it working with MultiDex?
PS: I am using ProGuard. I think it is not messing with things, but to be sure here is the part for MultiDex:
-keep class android.support.multidex.**
-keepclassmembernames class android.support.multidex.**{*;}
-keepclassmembers class android.support.multidex.** {*;}
EDIT: Here is the Android file (it's mainly generated by libGDX boostrap app):
android {
buildToolsVersion "23.0.1"
compileSdkVersion 23
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
java.srcDirs = ['src']
aidl.srcDirs = ['src']
renderscript.srcDirs = ['src']
res.srcDirs = ['res']
assets.srcDirs = ['assets']
jniLibs.srcDirs = ['libs']
}
instrumentTest.setRoot('tests')
}
lintOptions {
abortOnError false // make sure you're paying attention to the linter output!
}
// FIXME: How can we apply this simply for all builds? Copy-pasta makes me sad.
buildTypes {
release {
minifyEnabled true
proguardFile getDefaultProguardFile('proguard-android-optimize.txt')
proguardFile 'proguard-project.txt'
}
debug {
minifyEnabled true
proguardFile getDefaultProguardFile('proguard-android-optimize.txt')
proguardFile 'proguard-project.txt'
}
}
dexOptions {
javaMaxHeapSize "6g"
}
packagingOptions {
exclude 'rootdoc.txt'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/services/javax.script.ScriptEngineFactory'
}
defaultConfig {
minSdkVersion 14
targetSdkVersion 23
multiDexEnabled true
}
dexOptions {
preDexLibraries = false
}
}
// 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', 'xxx.android/xxx.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:multidex:1.0.1'
compile fileTree(dir: 'libs_jar', include: '*.jar')
}
PS: It doesn't seem to make a difference if I add the multidex library to dependencies or not.
回答1:
Had you extend your application class with MultiDexApplication?
if yes, then post your build.gradle file.
I don't have the power to comment, thats why I am posting a link. Check this link
回答2:
Add this too in android tag
android {
...
afterEvaluate {
tasks.matching {
it.name.startsWith('dex')
}.each { dx ->
if (dx.additionalParameters == null) {
dx.additionalParameters = ['--multi-dex']
} else {
dx.additionalParameters += '--multi-dex'
}
}
}
}
来源：https://stackoverflow.com/questions/37614300/multidex-problems-with-gradle-and-proguard