现在,我在'res/layout'文件夹内存储每个XML布局文件,因此管理小型项目是可行和简单的,但当有大型和繁重的项目的情况下,那么应该有一个层次结构和子文件夹内需要的布局文件夹。
如。
layout
-- layout_personal
-- personal_detail.xml
-- personal_other.xml
--layout_address
-- address1.xml
-- address2.xml
同样,我们希望大型应用程序有子文件夹,那么在Android项目中有办法做到这一点吗?
我能够在布局文件夹内创建layout-personal和layout_address子文件夹,但当需要使用R.layout访问XML布局文件时。_______,当时在菜单中没有任何XML布局弹出。
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。
@eski给出的最上面的答案很好,但是代码使用起来并不优雅,所以我在gradle中编写了一个groovy脚本以供一般使用。它适用于所有构建类型和产品风格,不仅可以用于布局,还可以为任何其他资源类型(如drawable)添加子文件夹。下面是代码(把它放在项目级gradle文件的android块中):
sourceSets.each {
def rootResDir = it.res.srcDirs[0]
def getSubDirs = { dirName ->
def layoutsDir = new File(rootResDir, dirName)
def subLayoutDirs = []
if (layoutsDir.exists()) {
layoutsDir.eachDir {
subLayoutDirs.add it
}
}
return subLayoutDirs
}
def resDirs = [
"anims",
"colors",
"drawables",
"drawables-hdpi",
"drawables-mdpi",
"drawables-xhdpi",
"drawables-xxhdpi",
"layouts",
"valuess",
]
def srcDirs = resDirs.collect {
getSubDirs(it)
}
it.res.srcDirs = [srcDirs, rootResDir]
}
实践中怎么做?
例如,我想为布局创建名为activity的子文件夹,在resDirs变量中添加任何名称的字符串,如布局,然后布局xml文件应该放在res\layouts\activity\layout\xxx.xml中。
如果我想为drawable创建名为selectors的子文件夹,在resDirs变量中添加任何名称的字符串,如drawables,那么drawable xml文件应该放在res\drawables\selectors\drawable xxx.xml中。
文件夹名称,如布局和drawables是在resDirs变量中定义的,它可以是任何字符串。
您创建的所有子文件夹,如活动或选择器,都被视为与res文件夹相同。所以在selectors文件夹中,我们必须另外创建一个drawable folder,把xml文件放到drawable folder中,这样gradle才能正常识别xml文件为drawable。
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。
答案是否定的。
我想提请您注意这本书Pro Android 2,它指出:
It is also worth noting a few
constraints regarding resources.
First, Android supports only a linear
list of files within the predefined
folders under res. For example, it
does not support nested folders under
the layout folder (or the other
folders under res).
Second, there are some similarities
between the assets folder and the raw
folder under res. Both folders can
contain raw files, but the files
within raw are considered resources
and the files within assets are not.
Note that because the contents of the
assets folder are not considered
resources, you can put an arbitrary
hierarchy of folders and files within
it.