实际上,我最近才想出了解决这个问题的方法。基本思想是,我的 ANT 文件找到所有库项目,首先构建它们,然后使用nodeps
目标构建我的其余项目。这有效地防止了CoreLibrary不断重新编译的情况。
<?xml version="1.0" encoding="UTF-8"?>
<project name="MasterBuild">
<!-- A property for the name of the file that contains 'android.library=true' (which is how we find library projects) -->
<property name="library.setting.file.name" value="project.properties" />
<filelist id="normal-projects" dir=".">
<!-- You want to add your own projects here -->
<file name="./MyProject/build.xml" />
<file name="./MyProject2/build.xml" />
<file name="./MyProject3/build.xml" />
</filelist>
<fileset id="all-libraries-properties" dir=".">
<include name="*/${library.setting.file.name}" />
<contains casesensitive="true" text="android.library=true" />
</fileset>
<pathconvert property="all-libraries" refid="all-libraries-properties">
<globmapper from="*${library.setting.file.name}" to="*build.xml" />
</pathconvert>
<target name="-set-debug-mode">
<property name="build.target" value="debug" />
<property name="install.target" value="installd" />
</target>
<target name="-set-release-mode">
<property name="build.target" value="release" />
<property name="install.target" value="installr" />
</target>
<target name="-build-dependencies" unless="built.dependencies">
<property name="built.dependencies" value="true" />
<subant buildpath="${all-libraries}" target="${build.target}" inheritall="false" />
</target>
<target name="-build-normal-projects" depends="-build-dependencies">
<subant inheritall="false">
<target name="nodeps" />
<target name="${build.target}" />
<resources refid="normal-projects" />
</subant>
</target>
<target name="-install-normal-projects">
<subant inheritall="false">
<target name="${install.target}" />
<resources refid="normal-projects" />
</subant>
</target>
<target name="debug" depends="-set-debug-mode, -build-normal-projects" description="Builds (only) a debug-key signed application" />
<target name="release" depends="-set-release-mode, -build-normal-projects" description="Builds (only) a release-key signed application" />
<target name="installd" depends="-set-debug-mode, -install-normal-projects" description="Installs (only) a debug-key signed application" />
<target name="installr" depends="-set-release-mode, -install-normal-projects" description="Installs (only) a release-key signed application" />
</project>
注意如果我编写了一个实际找到库依赖顺序的任务,则可以改进此解决方案,以便我可以使用 nodeps 目标构建库。此外,可能有一种方法可以自动检测“正常项目”,但我还不需要。最后,我从我的普通 ANT 文件中展开了很多东西,把它带到这里,所以希望我没有错过任何东西。然而,这个概念是存在的。