我的 Android 项目的 build.xml 文件遇到了这个问题。
我基本上已经将 android SDKs build.xml 文件中的“-compile”目标复制到了我自己的 build.xml 文件中。但是，在运行 ant 时，它一直使用 Android SDKs build.xml 文件中的“-compile”目标，而不是我的。我读到的所有地方，包括我的 build.xml 文件的注释，都指出这是目标覆盖的工作方式，但由于某种原因，我的覆盖目标没有运行。
还有什么我需要做的吗？
感谢帮助！
更新：
我这样做是为了注释掉目标中的<fileset dir="${source.absolute.dir}" excludes="**/*.java ${android.package.excludes}" />行-compile。
正如您在下面看到的，有两种不同的 echo 语句。我一直看到正在打印 sdk/tools/build.xml 中的那个。另一个明确的迹象是构建失败，因为它没有使用我的目标。
这是我的 custom_rules.xml 文件中的目标
<target name="-compile" depends="-pre-build, -build-setup, -code-gen, -pre-compile">
<do-only-if-manifest-hasCode elseText="hasCode = false. Skipping...">
<!-- merge the project's own classpath and the tested project's classpath -->
<path id="project.javac.classpath">
<path refid="project.all.jars.path" />
<path refid="tested.project.classpath" />
<path path="${java.compiler.classpath}" />
</path>
<javac encoding="${java.encoding}"
source="${java.source}" target="${java.target}"
debug="true" extdirs="" includeantruntime="false"
destdir="${out.classes.absolute.dir}"
bootclasspathref="project.target.class.path"
verbose="${verbose}"
classpathref="project.javac.classpath"
fork="${need.javac.fork}">
<src path="${source.absolute.dir}" />
<src path="${gen.absolute.dir}" />
<compilerarg line="${java.compilerargs}" />
<classpath>
<fileset dir="." includes="libs_ext/*.jar"/>
</classpath>
</javac>
<!-- if the project is instrumented, intrument the classes -->
<if condition="${build.is.instrumented}">
<then>
<echo level="info">Instrumenting classes from ${out.absolute.dir}/classes...</echo>
<!-- build the filter to remove R, Manifest, BuildConfig -->
<getemmafilter
appPackage="${project.app.package}"
libraryPackagesRefId="project.library.packages"
filterOut="emma.default.filter"/>
<!-- define where the .em file is going. This may have been
setup already if this is a library -->
<property name="emma.coverage.absolute.file" location="${out.absolute.dir}/coverage.em" />
<!-- It only instruments class files, not any external libs -->
<emma enabled="true">
<instr verbosity="${verbosity}"
mode="overwrite"
instrpath="${out.absolute.dir}/classes"
outdir="${out.absolute.dir}/classes"
metadatafile="${emma.coverage.absolute.file}">
<filter excludes="${emma.default.filter}" />
<filter value="${emma.filter}" />
</instr>
</emma>
</then>
</if>
<!-- if the project is a library then we generate a jar file -->
<if condition="${project.is.library}">
<then>
<echo level="info">Creating library output jar file... CUSTOM_RULESXML</echo>
<property name="out.library.jar.file" location="${out.absolute.dir}/classes.jar" />
<if>
<condition>
<length string="${android.package.excludes}" trim="true" when="greater" length="0" />
</condition>
<then>
<echo level="info">Custom jar packaging exclusion: ${android.package.excludes}</echo>
</then>
</if>
<propertybyreplace name="project.app.package.path" input="${project.app.package}" replace="." with="/" />
<jar destfile="${out.library.jar.file}">
<fileset dir="${out.classes.absolute.dir}"
includes="**/*.class"
excludes="${project.app.package.path}/R.class ${project.app.package.path}/R$*.class ${project.app.package.path}/BuildConfig.class"/>
<!--<fileset dir="${source.absolute.dir}" excludes="**/*.java ${android.package.excludes}" />-->
</jar>
</then>
</if>
</do-only-if-manifest-hasCode>
</target>
这是 sdk/tools/build.xml 文件中的相同目标：
<target name="-compile" depends="-pre-build, -build-setup, -code-gen, -pre-compile">
<do-only-if-manifest-hasCode elseText="hasCode = false. Skipping...">
<!-- merge the project's own classpath and the tested project's classpath -->
<path id="project.javac.classpath">
<path refid="project.all.jars.path" />
<path refid="tested.project.classpath" />
<path path="${java.compiler.classpath}" />
</path>
<javac encoding="${java.encoding}"
source="${java.source}" target="${java.target}"
debug="true" extdirs="" includeantruntime="false"
destdir="${out.classes.absolute.dir}"
bootclasspathref="project.target.class.path"
verbose="${verbose}"
classpathref="project.javac.classpath"
fork="${need.javac.fork}">
<src path="${source.absolute.dir}" />
<src path="${gen.absolute.dir}" />
<compilerarg line="${java.compilerargs}" />
</javac>
<!-- if the project is instrumented, intrument the classes -->
<if condition="${build.is.instrumented}">
<then>
<echo level="info">Instrumenting classes from ${out.absolute.dir}/classes...</echo>
<!-- build the filter to remove R, Manifest, BuildConfig -->
<getemmafilter
appPackage="${project.app.package}"
libraryPackagesRefId="project.library.packages"
filterOut="emma.default.filter"/>
<!-- define where the .em file is going. This may have been
setup already if this is a library -->
<property name="emma.coverage.absolute.file" location="${out.absolute.dir}/coverage.em" />
<!-- It only instruments class files, not any external libs -->
<emma enabled="true">
<instr verbosity="${verbosity}"
mode="overwrite"
instrpath="${out.absolute.dir}/classes"
outdir="${out.absolute.dir}/classes"
metadatafile="${emma.coverage.absolute.file}">
<filter excludes="${emma.default.filter}" />
<filter value="${emma.filter}" />
</instr>
</emma>
</then>
</if>
<!-- if the project is a library then we generate a jar file -->
<if condition="${project.is.library}">
<then>
<echo level="info">Creating library output jar file... SDK TOOLS BUILDXML</echo>
<property name="out.library.jar.file" location="${out.absolute.dir}/classes.jar" />
<if>
<condition>
<length string="${android.package.excludes}" trim="true" when="greater" length="0" />
</condition>
<then>
<echo level="info">Custom jar packaging exclusion: ${android.package.excludes}</echo>
</then>
</if>
<propertybyreplace name="project.app.package.path" input="${project.app.package}" replace="." with="/" />
<jar destfile="${out.library.jar.file}">
<fileset dir="${out.classes.absolute.dir}"
includes="**/*.class"
excludes="${project.app.package.path}/R.class ${project.app.package.path}/R$*.class ${project.app.package.path}/BuildConfig.class"/>
<fileset dir="${source.absolute.dir}" excludes="**/*.java ${android.package.excludes}" />
</jar>
</then>
</if>
</do-only-if-manifest-hasCode>
</target>