Android .idea / misc.xml的languageLevel标记不断更改JDK

问题描述：

由于我不知道的原因，languageLevel键从JDK_1_8更改为JDK_1_7。

The languageLevel key gets changed from JDK_1_8 to JDK_1_7 for reasons I am not aware.

可能会发生什么？

这是否与其他开发项目的开发人员的IDE有关？也许他们有另一个Android Studio设置？

Does this have something to do with the IDE of other developers working on the project? Maybe they have another Android Studio setting?

以下是我发现源代码管理下的文件发生变化后弹出的内容：

Here is what pops up after I notice files under source control have changed:

$ git diff
diff --git a/.idea/misc.xml b/.idea/misc.xml
index fbb6828..5d19981 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

这是我的gitignore以防万一。

This is my gitignore in case it matters.

.gradle
/local.properties
/.idea/workspace.xml
/.idea/libraries
.DS_Store
/build
/captures

如何继续使其保持单向或者其他？

How do I proceed so that it just stays one way or the other?

答

这让我疯了一会儿。我能够通过在我的 build.gradle 中明确设置java版本来修复它：

This was driving me nuts for a while. I was able to fix it by explicitly setting the java version in my build.gradle:

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

请注意，如果您使用的是 VERSION_1_7 ，那么当您冷启动Android Studio或切换到另一个使用 VERSION_1_8 的项目，它将修改 .idea / misc.xml 以使用 JDK_1_8 。执行gradle sync会将其还原为使用 JDK_1_7 。如果您使用 VERSION_1_8 ，则不会出现此问题。

Note that if you're using VERSION_1_7, when you cold launch Android Studio or switch to another project that uses VERSION_1_8, it will modify .idea/misc.xml to use JDK_1_8. Doing a gradle sync will revert it back to using JDK_1_7. If you're using VERSION_1_8, you won't have this issue.

这不完美但我发现这个现在已经足够好了。

It's not perfect but I found this to be good enough for now.

Android .idea / misc.xml的languageLevel标记不断更改JDK

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