使用Android
Studio進(jìn)行開，隨著項(xiàng)目的增大刨肃，依賴庫的增多刃鳄，構(gòu)建速度越來越慢盅弛，現(xiàn)在最慢要6分鐘才能build一個(gè)release的安裝包，在網(wǎng)上查找資料，發(fā)現(xiàn)可以通過一些配置可以加快速度挪鹏，這里跟大家分享一下见秽。
開啟gradle單獨(dú)的守護(hù)進(jìn)程（大致的用處就是，當(dāng)AndroidStudio掛掉的時(shí)候讨盒，有個(gè)線程喚醒他解取，保證了AndroidStudio的健壯）
在下面的目錄下面創(chuàng)建gradle.properties文件：
/home//.gradle/
(Linux)
/Users//.gradle/
(Mac)
C:\Users\\.gradle
(Windows)
把下面配置復(fù)制到gradle.properties文件中：
#
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
同時(shí)上面的這些參數(shù)也可以配置到前面的用戶目錄下的gradle.properties文件里，那樣就不是針對一個(gè)項(xiàng)目生效催植，而是針對所有項(xiàng)目生效肮蛹。
上面的配置文件主要就是做，
增大gradle運(yùn)行的java虛擬機(jī)的大小创南，讓gradle在編譯的時(shí)候使用獨(dú)立進(jìn)程伦忠，讓gradle可以平行的運(yùn)行。
1.申請大內(nèi)存
installation path\studio64.exe.vmoptions or? ? studio.exe.vmoptions
使用文本編輯器打開稿辙，找到起始兩行昆码，如下
-Xms128m
-Xmx750m
修改最小值和最大值，建議為
-Xms256m
-Xmx2048m
2優(yōu)化編譯
file->setting->compile
勾選除第二項(xiàng)之外的其他選項(xiàng)邻储，并在VM options里填入：
-Xmx2048m
-XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
經(jīng)過測試赋咽，編譯速度有很大提升，比較大的項(xiàng)目從之前的5-8分鐘可以減少到1-2分鐘吨娜。
