Android Studio 需要哪个 JDK 版本(语言级别)? [英] Which JDK version (Language Level) is required for Android Studio?

问题描述

我是 android 世界的新手，拥有 .NET 背景.我正在尝试安装 Android Studio，但我在 Android.com 上发现开发 Android 应用程序所需的 JDK 版本不匹配.

从

I am a new comer to the android world and with a .NET background. I am trying to install the Android Studio but I am having a mismatch on Android.com about the JDK version required for developing Android applications.

From the SDK web page it states that JDK 6 is required (under system requirements section). Jim Wilson also insist in his course on Pluralsight (which is quite new, from last May) that using version 7 with the Android SDK will create a lot of headache and makes it clear to only use JDK 6.

Although in the Android studio page (Under installing step 2) they explain how to set an environment variable indicating the correct JDK location. In here they use a path of JDK 7

Select Start menu > Computer > System Properties > Advanced System Properties. Then open Advanced tab > Environment Variables and add a new system variable JAVA_HOME that points to your JDK folder, for example C:\Program Files\Java\jdk1.7.0_21.

I am pretty sure both the ADT & Eclipse bundle and the Android Studio bundle are using the same SDK but now I am confused about which JDK version I need to install. My sole purpose is to avoid problems as much as possible while getting my first steps into the Android development.

Disclaimer: I am not related by any mean to Pluralsight. I am just a normal user following the courses.

解决方案

Answer Clarification - Android Studio supports JDK8

The following is an answer to the question "What version of Java does Android support?" which is different from "What version of Java can I use to run Android Studio?" which is I believe what was actually being asked. For those looking to answer the 2nd question, you might find Using Android Studio with Java 1.7 helpful.

Also: See http://developer.android.com/sdk/index.html#latest for Android Studio system requirements. JDK8 is actually a requirement for PC and linux (as of 5/14/16).

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Java 8 update (3/19/14)

Because I'd assume this question will start popping up soon with the release yesterday: As of right now, there's no set date for when Android will support Java 8.

Here's a discussion over at /androiddev - http://www.reddit.com/r/androiddev/comments/22mh0r/does_android_have_any_plans_for_java_8/

If you really want lambda support, you can checkout Retrolambda - https://github.com/evant/gradle-retrolambda. I've never used it, but it seems fairly promising.

Another Update: Android added Java 7 support

Android now supports Java 7 (minus try-with-resource feature). You can read more about the Java 7 features here: https://stackoverflow.com/a/13550632/413254. If you're using gradle, you can add the following in your build.gradle:

android {
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }
}

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Older response

I'm using Java 7 with Android Studio without any problems (OS X - 10.8.4). You need to make sure you drop the project language level down to 6.0 though. See the screenshot below.

What tehawtness said below makes sense, too. If they're suggesting JDK 6, it makes sense to just go with JDK 6. Either way will be fine.

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Update: See this SO post -- https://stackoverflow.com/a/9567402/413254

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