Android-maven配置multidex封装

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);	}	*/}

<?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>${project.basedir}/debug.keystore</sign.keystore>        <sign.alias>androiddebugkey</sign.alias>        <sign.storepass>android</sign.storepass>    </properties>    <dependencies>        <dependency>            <groupId>com.google.android</groupId>            <artifactId>android</artifactId>            <version>4.3.0</version>            <scope>provided</scope>        </dependency>        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>fastjson</artifactId>            <version>1.1.45</version>        </dependency>        <dependency>		  <groupId>com.android.support</groupId>		  <artifactId>multidex</artifactId>		  <version>20</version>		</dependency>    </dependencies>    <build>        <finalName>${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>                    <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>                </configuration>                <extensions>true</extensions>            </plugin>        </plugins>    </build></project>

android/support/multidex/MultiDex.classandroid/support/multidex/MultiDex$V4.classandroid/support/multidex/MultiDex$V14.classandroid/support/multidex/MultiDex$V19.classandroid/support/multidex/MultiDexApplication.classandroid/support/multidex/MultiDexExtractor.classandroid/support/multidex/MultiDexExtractor$1.classandroid/support/multidex/ZipUtil.classandroid/support/multidex/ZipUtil$CentralDirectory.classcom/example/hello/DemoMultiDexApplication.class

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>

 <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