Android-maven配置multidex打包
转载请标明出处：http://blog.csdn.net/goldenfish1919/article/details/42006649
工程大了以后，不可避免就会出现方法数目超出65536的限制，很幸运的是新的android提供了多dex打包的方式可以解决这个问题。下面我们就来看下如何用android-maven-plugin打多dex包。
先看下工程结构：
并不是一个标准的maven工程，但是可以通过更改配置来完成打包。工程的代码非常简单，MainActivity有一个按钮，点击按钮跳转到SecondActivity，SecondActivity中引用了fastjson做了一个对象转string的操作，然后弹出toast提示。还有就是DemoMultiDexApplication继承了MultiDexApplication。假如你的Application已经继承了别的类，那么也可以重写attachBaseContext()来实现。
public class DemoMultiDexApplication extends MultiDexApplication {
/*如果已经继承了别的类，可以重写下面的方法
@Override
protected void attachBaseContext(Context base) {
super.attachBaseContext(base);
MultiDex.install(this);
}
*/
}重点看一下pom：
<?xml version="1.0" encoding="utf-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.test</groupId>
<artifactId>multidexdemo</artifactId>
<version>1.0.0</version>
<packaging>apk</packaging>
<name>multidexdemo</name>
<properties>
<sign.keystore>${project.basedir}/debug.keystore</sign.keystore>
<sign.alias>androiddebugkey</sign.alias>
<sign.storepass>android</sign.storepass>
</properties>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>4.3.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.45</version>
</dependency>
<dependency>
<groupId>com.android.support</groupId>
<artifactId>multidex</artifactId>
<version>20</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>tbmirror-snapshots</id>
<name>taobao mirror snapshots</name>
<url>http://mvnrepo.taobao.ali.com/mvn/snapshots</url>
<layout>default</layout>
</repository>
<repository>
<id>central</id>
<url>http://mvnrepo.taobao.ali.com/mvn/repository</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>snapshots</id>
<url>http://mvnrepo.taobao.ali.com/mvn/snapshots</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<build>
<finalName>${project.artifactId}-${project.version}</finalName>
<sourceDirectory>src</sourceDirectory>
<plugins>
<!--编译插件-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!--resource插件-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!--签名插件-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jarsigner-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<id>signing</id>
<goals>
<goal>sign</goal>
<goal>verify</goal>
</goals>
<phase>package</phase>
<inherited>true</inherited>
<configuration>
<removeExistingSignatures>true</removeExistingSignatures>
<archiveDirectory />
<includes>
<include>target/${project.artifactId}-${project.version}.apk</include>
</includes>
<keystore>${sign.keystore}</keystore>
<alias>${sign.alias}</alias>
<storepass>${sign.storepass}</storepass>
<verbose>true</verbose>
</configuration>
</execution>
</executions>
</plugin>
<!--android-maven-plugin-->
<plugin>
<groupId>com.simpligility.maven.plugins</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>4.0.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
<!--设置AndroidManifest，assets，libs，res的路径，如果是标准的maven工程不需要设置-->
<androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile>
<assetsDirectory>${project.basedir}/assets</assetsDirectory>
<nativeLibrariesDirectory>${project.basedir}/libs</nativeLibrariesDirectory>
<resourceDirectory>${project.basedir}/res</resourceDirectory>
<failOnDuplicatePackages>false</failOnDuplicatePackages>
<!--关闭android:debuggable-->
<release>true</release>
<sdk>
<path>${env.ANDROID_HOME}</path>
<platform>19</platform>
</sdk>
<!--混淆-->
<proguard>
<skip>false</skip>
<config>${project.basedir}/proguard.cfg</config>
<proguardJarPath>${project.basedir}/tools/proguard.jar</proguardJarPath>
<jvmArguments>
<jvmArgument>-Xms256m</jvmArgument>
<jvmArgument>-Xmx512m</jvmArgument>
</jvmArguments>
</proguard>
<dex>
<jvmArguments>
<jvmArgument>-Xms2048m</jvmArgument>
<jvmArgument>-Xmx2048m</jvmArgument>
</jvmArguments>
<!--使用多dex打包-->
<multi-dex>true</multi-dex>
<minimal-main-dex>true</minimal-main-dex>
<dex-arguments>--set-max-idx-number=65536</dex-arguments>
<!--主dex里面的class-->
<main-dex-list>${project.basedir}/MainDexList.txt</main-dex-list>
</dex>
<!--禁用默认的debug签名-->
<sign>
<debug>false</debug>
</sign>
<!-- 对齐 -->
<zipalign>
<verbose>true</verbose>
<inputApk>
${project.build.directory}/${project.artifactId}-${project.version}.apk
</inputApk>
<outputApk>
${project.build.directory}/${project.artifactId}-${project.version}__${maven.build.timestamp}.apk
</outputApk>
</zipalign>
</configuration>
<executions>
<execution>
<id>alignApk</id>
<phase>package</phase>
<goals>
<goal>zipalign</goal>
</goals>
</execution>
</executions>
<extensions>true</extensions>
</plugin>
</plugins>
</build>
</project>
MainDexList.txt：
android/support/multidex/MultiDex.class android/support/multidex/MultiDex$V4.class android/support/multidex/MultiDex$V14.class android/support/multidex/MultiDex$V19.class android/support/multidex/MultiDexApplication.class android/support/multidex/MultiDexExtractor.class android/support/multidex/MultiDexExtractor$1.class android/support/multidex/ZipUtil.class android/support/multidex/ZipUtil$CentralDirectory.class com/example/hello/DemoMultiDexApplication.class这里面列出了放在主dex中的类。
proguard.cfg：
-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.view.View {
public <init>(android.content.Context);
public <init>(android.content.Context, android.util.AttributeSet);
public <init>(android.content.Context, android.util.AttributeSet, int);
public void set*(...);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * implements android.os.Parcelable {
static android.os.Parcelable$Creator CREATOR;
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-keep class com.example.hello.Person{*;}
-keep class android.support.multidex.*{*;}
-dontwarn com.alibaba.fastjson.**
-keep class com.alibaba.fastjson.**{*;}
-keep class com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter { *; }
-keep class com.alibaba.fastjson.support.spring.FastJsonJsonView { *; }
-dontwarn com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter
-dontwarn com.alibaba.fastjson.support.spring.FastJsonJsonView
签名的时候就是使用的默认的keystore来签名的。
所使用的maven环境：
以上就是所有要做的了。
另外就是maven打好的包很可能启动不起来，可以用adb logcat来抓取logcat的日志。
完整的工程在这：http://download.csdn.net/detail/goldenfish1919/8274385
拷贝文件用的plugin：
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/res/drawable/</outputDirectory>
<resources>
<resource>
<directory>${basedir}/securityjpg/</directory>
<filtering>true</filtering>
<includes>
<include>*.jpg</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
多个源码目录：
<build>
<finalName>${project.artifactId}-${project.version}</finalName>
<sourceDirectory>src</sourceDirectory>
<resources>
<resource>
<targetPath>${basedir}/src/</targetPath>
<directory>${basedir}/src1/</directory>
<includes>
<include>**</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<targetPath>${basedir}/src/</targetPath>
<directory>${basedir}/src2/</directory>
<includes>
<include>**</include>
</includes>
<filtering>true</filtering>
</resource>
<resource>
<targetPath>${basedir}/src/</targetPath>
<directory>${basedir}/src3/</directory>
<includes>
<include>**</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>
参考：
http://www.infoq.com/cn/news/2014/11/android-multidex
https://github.com/simpligility/android-maven-plugin
http://stackoverflow.com/questions/26530654/android-multidex-support-library-using-eclipse
https://github.com/lsuski/maven-multidex-sample
http://simpligility.github.io/android-maven-plugin/dex-mojo.html