Android Gradle构建缓慢 [英] Android Gradle Build Slow

问题描述

我试图弄清楚为什么我们的Gradle构建如此之慢.当前，每次您击中构建而没有任何更改时，构建时间约为45秒.这是一个单模块项目.我已经启用了性能分析，大部分时间都花在:app:dexDebug上.我们使用Gradle 2.8进行构建，我的dex选项如下:

I am trying to figure out why our Gradle build is so slow. Currently each time you hit build with no changes the build time is around 45 seconds. This is a single module project. I have turned on profiling and most of the time is spent on :app:dexDebug. We are build using Gradle 2.8 and my dex options are as follows:

dexOptions { preDexLibraries =否 增量真实 javaMaxHeapSize"4g" }

dexOptions { preDexLibraries = false incremental true javaMaxHeapSize "4g" }

从个人资料报告中: :app 43.957s(总计) :app:dexDebug 28.727s

From the profile report: :app 43.957s (total) :app:dexDebug 28.727s

有没有办法加快速度?为什么每次都必须重建dex?

Is there a way to speed this up? Why does dex have to be rebuilt each time?

推荐答案

这可能会引起一些启发:

This might shed some light:

http://tools.android.com/tech-docs/instant-run

Gradle在transformClassesWithDexForDebug上构建缓慢

https://code.google.com/p/android/issues/detail?id=187443&q=attachments%3D0&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

尝试禁用数据绑定:

//    dataBinding {
//        enabled = true
//    }

也尝试

 ./gradlew  assembleDebug --profile

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