android studio retrolambda配置及使用

android 源码编译目前只支持 java7 ，GitHub上提供了一个基于Java6 及Java7上使用Lambda的插件：

A gradle plugin for getting java lambda support in java 6, 7 and android

Github地址：
https://github.com/evant/gradle-retrolambda

Android Studio gradle配置：

• app/build.gradle

apply plugin: 'com.android.application'android {    compileOptions {        sourceCompatibility JavaVersion.VERSION_1_8        targetCompatibility JavaVersion.VERSION_1_8    }}apply plugin: 'me.tatarka.retrolambda'

• project/build.gradle

buildscript {    dependencies {        classpath 'me.tatarka:gradle-retrolambda:3.2.5'    }}

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