优化Android Studio/Gradle构建

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使用Android Studio进行开发,随着项目的增大,依赖库的增多,构建速度越来越慢,现在最慢要10分钟才能build一个release的安装包,网上查找资料,发现通过一些配置可以加快速度,分享一下。

1.开启gradle单独的守护进程 
在下面的目录下面创建gradle.properties文件: 
/home//.gradle/ (Linux) 
/Users//.gradle/ (Mac) 
C:\Users\.gradle (Windows) 


2.改写gradle.properties文件配置
# Project-wide Gradle settings.    # IDE (e.g. Android Studio) users:    # Settings specified in this file will override any Gradle settings    # configured through the IDE.    # For more details on how to configure your build environment visit    # http://www.gradle.org/docs/current/userguide/build_environment.html    # The Gradle daemon aims to improve the startup and execution time of Gradle.    # When set to true the Gradle daemon is to run the build.    # TODO: disable daemon on CI, since builds should be clean and reliable on servers org.gradle.daemon=true    # Specifies the JVM arguments used for the daemon process.    # The setting is particularly useful for tweaking memory settings.    # Default value: -Xmx10248m -XX:MaxPermSize=256m org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m    -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8    # When configured, Gradle will run in incubating parallel mode.    # This option should only be used with decoupled projects. More details, visit    # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects    org.gradle.parallel=true    # Enables new incubating mode that makes Gradle selective when configuring projects.     # Only relevant projects are configured which results in faster builds for large multi-projects. #http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:configuration_on_demand    org.gradle.configureondemand=true
同时上面的这些参数也可以配置到前面的用户目录下的gradle.properties文件里,那样就不是针对一个项目生效,而是针对所有项目生效。 
上面的配置文件主要就是做, 增大gradle运行的Java虚拟机的大小,让gradle在编译的时候使用独立进程,让gradle可以平行的运行。
 
1.申请大内存
installation path\studio64.exe.vmoptions or studio.exe.vmoptions
使用文本编辑器打开,找到起始两行,如下
-Xms128m
-Xmx750m

修改最小值和最大值,建议为
-Xms256m
-Xmx2048m

2 优化编译
file->setting->compile
勾选除第二项之外的其他选项,并在VM options里填入:
-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8

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