我只是想补充eskis对遇到麻烦的人的精彩回答。(注意:这只会工作，看起来像“项目”视图中的单独目录，不幸的是，不是“android”视图。)

用以下测试。 BuildToolsVersion = 23.0.0 Gradle 1.2.3 & 1.3.0

这就是我如何让我的工作与一个已经建立的项目。

Copy all of the XML files out of your layout directory, and put them into a directory on the desktop or something for backup. Delete the entire layout directory (Make sure you backed everything up from step 1!!!) Right click the res directory and select new > directory. Name this new directory "layouts". (This can be whatever you want, but it will not be a 'fragment' directory or 'activity' directory, that comes later). Right click the new "layouts" directory and select new > directory. (This will be the name of the type of XML files you will have in it, for example, 'fragments' and 'activities'). Right click the 'fragment' or 'activities' directory (Note: this doesn't have to be 'fragment' or 'activities' that's just what i'm using as an example) and select new > directory once again and name this directory "layout". (Note: This MUST be named 'layout'!!! very important). Put the XML files you want inside the new 'layout' directory from the backup you made on your desktop. Repeat steps 5 - 7 for as many custom directories as you desire. Once this is complete, go into your modules gradle.build file and create a sourceSets definition like this...(Make sure 'src/main/res/layouts' & 'src/main/res' are always the bottom two!!!! Like I am showing below). sourceSets { main { res.srcDirs = [ 'src/main/res/layouts/activities', 'src/main/res/layouts/fragments', 'src/main/res/layouts/content', 'src/main/res/layouts', 'src/main/res' ] } } Profit $$$$

但是说真的. .我就是这样让它起作用的。如果有人有任何问题，请告诉我。我可以试着帮忙。

图片比文字更有价值。

如果你在批准的答案中使用了这个方法，并且想要稍微改进一下，那么就像这样更改gradle设置:

    sourceSets {
    main {
        res.srcDirs = [
            file("src/main/res/layouts/").listFiles(),
            "src/main/res/layouts",
            "src/main/res"
        ]
    }
}

因此，如果你添加更多的文件夹和布局，你不需要回到这里，并附加一个很长的源文件夹列表，让gradle为你获取所有的文件夹。

小问题

我能够通过遵循这个问题的顶部答案来实现子文件夹。

然而，随着项目越来越大，你会有很多子文件夹:

sourceSets {
    main {
        res.srcDirs = [
            'src/main/res/layouts/somethingA',
            'src/main/res/layouts/somethingB',
            'src/main/res/layouts/somethingC',
            'src/main/res/layouts/somethingD',
            'src/main/res/layouts/somethingE',
            'src/main/res/layouts/somethingF',
            'src/main/res/layouts/somethingG',
            'src/main/res/layouts/somethingH',
            'src/main/res/layouts/...many more',
            'src/main/res'
        ]
    }
}

不是什么大问题，但是:

当清单变得很长时，它就不好看了。 你必须改变你的应用/构建。每次添加新文件夹时Gradle。

---

改进

所以我写了一个简单的Groovy方法来抓取所有嵌套文件夹:

def getLayoutList(path) {
    File file = new File(path)
    def throwAway = file.path.split("/")[0]
    def newPath = file.path.substring(throwAway.length() + 1)
    def array = file.list().collect {
        "${newPath}/${it}"
    }
    array.push("src/main/res");
    return array
}

将此方法粘贴到android{…}块在你的app/build.gradle。

---

如何使用

对于这样的结构:

<project root>
├── app <---------- TAKE NOTE
├── build
├── build.gradle
├── gradle
├── gradle.properties
├── gradlew
├── gradlew.bat
├── local.properties
└── settings.gradle

像这样使用它:

android {
    sourceSets {
        main {
            res.srcDirs = getLayoutList("app/src/main/res/layouts/")
        }
    }
}

如果你有一个这样的结构:

<project root>
├── my_special_app_name <---------- TAKE NOTE
├── build
├── build.gradle
├── gradle
├── gradle.properties
├── gradlew
├── gradlew.bat
├── local.properties
└── settings.gradle

你可以这样使用它:

android {
    sourceSets {
        main {
            res.srcDirs = getLayoutList("my_special_app_name/src/main/res/layouts/")
        }
    }
}

---

解释

getLayoutList()接受一个相对路径作为参数。相对路径相对于项目的根路径。所以当我们输入"app/src/main/res/layouts/"时，它会以数组的形式返回所有子文件夹的名称，这将与:

[
    'src/main/res/layouts/somethingA',
    'src/main/res/layouts/somethingB',
    'src/main/res/layouts/somethingC',
    'src/main/res/layouts/somethingD',
    'src/main/res/layouts/somethingE',
    'src/main/res/layouts/somethingF',
    'src/main/res/layouts/somethingG',
    'src/main/res/layouts/somethingH',
    'src/main/res/layouts/...many more',
    'src/main/res'
]

下面是带有注释的脚本，便于理解:

def getLayoutList(path) {
    // let's say path = "app/src/main/res/layouts/
    File file = new File(path)

    def throwAway = file.path.split("/")[0]
    // throwAway = 'app'

    def newPath = file.path.substring(throwAway.length() + 1) // +1 is for '/'
    // newPath = src/main/res/layouts/

    def array = file.list().collect {
        // println "filename: ${it}" // uncomment for debugging
        "${newPath}/${it}"
    }

    array.push("src/main/res");
    // println "result: ${array}" // uncomment for debugging

    return array
}

---

希望能有所帮助!

第一步:在资源管理器中右键单击布局-显示 步骤2:打开布局文件夹并直接创建子文件夹:layout_1, layout_2… 步骤3:打开layout_1创建文件夹布局(注意:必选名称为布局)，打开layout_2文件夹创建文件夹布局子目录(注意:必选名称为布局)… 步骤4:将xml文件复制到layout_1和layout_2的布局子目录中 步骤5:运行build中的代码。Grade(模块应用)，现在点击同步:

---

sourceSets {
    main {
        res.srcDirs =
            [
                'src / main / res / layout / layout_1'
                'src / main / res / layout / layout_2',
                'src / main / res'
            ]
    }
}

第6步:总结:以上所有步骤将只帮助集群文件夹和显示在“项目”模式，而“android”模式将正常显示。 所以我认为命名前缀可能和集群文件夹一样有效。

我使用Android文件分组插件的Android工作室。它不允许你创建子文件夹，但是它可以显示你的文件和资源，因为它们在不同的文件夹中。这正是我想要的。

你可以安装“Android文件分组”插件通过

窗口:

Android Studio ->文件->设置->插件。

Mac:

Android Studio标签(左上)->首选项->插件->安装JetBrains插件..

对于Mac，我能够测试它，不能搜索插件。所以我从这里下载了插件，并从上面的设置中使用了从磁盘安装插件选项。

I think the most elegant solution to this problem (given that subfolders are not allowed) is to prepend the file names with the name of the folder you would have placed it inside of. For example, if you have a bunch of layouts for an Activity, Fragment, or just general view called "places" then you should just prepend it with places_my_layout_name. At least this solves the problem of organizing them in a way that they are easier to find within the IDE. It's not the most awesome solution, but it's better than nothing.