Android studio 工程的 module 依赖关系图绘制 、 Android Module 依赖关系的可视化实现

整体步骤：

• 1、利用gradle脚本生成dot；

• 2、利用graphviz将dot可视化转为图片

利用gradle脚本生成dot

下载projectDependencyGraph.gradle脚本

下载 projectDependencyGraph.gradle ，放在项目根目录，

源码如下：

task projectDependencyGraph {
    doLast {
        def dot = new File(rootProject.buildDir, 'reports/dependency-graph/project.dot')
        dot.parentFile.mkdirs()
        dot.delete()

        dot << 'digraph {\n'
        dot << "  graph [label=\"${rootProject.name}\\n \",labelloc=t,fontsize=30,ranksep=1.4];\n"
        dot << '  node [style=filled, fillcolor="#bbbbbb"];\n'
        dot << '  rankdir=TB;\n'

        def rootProjects = []
        def queue = [rootProject]
        while (!queue.isEmpty()) {
            def project = queue.remove(0)
            rootProjects.add(project)
            queue.addAll(project.childProjects.values())
        }

        def projects = new LinkedHashSet<Project>()
        def dependencies = new LinkedHashMap<Tuple2<Project, Project>, List<String>>()
        def multiplatformProjects = []
        def jsProjects = []
        def androidProjects = []
        def javaProjects = []

        queue = [rootProject]
        while (!queue.isEmpty()) {
            def project = queue.remove(0)
            queue.addAll(project.childProjects.values())

            if (project.plugins.hasPlugin('org.jetbrains.kotlin.multiplatform')) {
                multiplatformProjects.add(project)
            }
            if (project.plugins.hasPlugin('org.jetbrains.kotlin.js')) {
                jsProjects.add(project)
            }
            if (project.plugins.hasPlugin('com.android.library') || project.plugins.hasPlugin('com.android.application')) {
                androidProjects.add(project)
            }
            if (project.plugins.hasPlugin('java-library') || project.plugins.hasPlugin('java')) {
                javaProjects.add(project)
            }

            project.configurations.all { config ->
                config.dependencies
                        .withType(ProjectDependency)
                        .collect { it.dependencyProject }
                        .each { dependency ->
                            projects.add(project)
                            projects.add(dependency)
                            rootProjects.remove(dependency)

                            def graphKey = new Tuple2<Project, Project>(project, dependency)
                            def traits = dependencies.computeIfAbsent(graphKey) { new ArrayList<String>() }

                            if (config.name.toLowerCase().endsWith('implementation')) {
                                traits.add('style=dotted')
                            }
                        }
            }
        }

        projects = projects.sort { it.path }

        dot << '\n  # Projects\n\n'
        for (project in projects) {
            def traits = []

            if (rootProjects.contains(project)) {
                traits.add('shape=box')
            }

            if (multiplatformProjects.contains(project)) {
                traits.add('fillcolor="#ffd2b3"')
            } else if (jsProjects.contains(project)) {
                traits.add('fillcolor="#ffffba"')
            } else if (androidProjects.contains(project)) {
                traits.add('fillcolor="#baffc9"')
            } else if (javaProjects.contains(project)) {
                traits.add('fillcolor="#ffb3ba"')
            } else {
                traits.add('fillcolor="#eeeeee"')
            }

            dot << "  \"${project.path}\" [${traits.join(", ")}];\n"
        }

        dot << '\n  {rank = same;'
        for (project in projects) {
            if (rootProjects.contains(project)) {
                dot << " \"${project.path}\";"
            }
        }
        dot << '}\n'

        dot << '\n  # Dependencies\n\n'
        dependencies.forEach { key, traits ->
            dot << "  \"${key.first.path}\" -> \"${key.second.path}\""
            if (!traits.isEmpty()) {
                dot << " [${traits.join(", ")}]"
            }
            dot << '\n'
        }

        dot << '}\n'

//        def p = 'dot -Tpng -O project.dot'.execute([], dot.parentFile)
//        p.waitFor()
//        if (p.exitValue() != 0) {
//            throw new RuntimeException(p.errorStream.text)
//        }
//
//        println("Project module dependency graph created at ${dot.absolutePath}.png")
    }
}

引用：

apply from: "${project.rootProject.file('projectDependencyGraph.gradle')}"

运行脚本 ：

gradlew projectDependencyGraph

根目录会生成 build\reports\dependency-graph\project.dot

执行完命令后，会生成对应的dot文件
dot 是图形描述语言，简单来说就是用来描述一个图片的

查看

网页打开 .dot在线预览，复制.dot内容进入，即可查看

利用graphviz将dot可视化转为图片

为了把 dot 文件转 png 图片，你的机器上需要安装 GraphvizDownload | Graphviz。这玩意就是把 dot 转 png 的工具。

使用graphviz命令生成图即可，如下：

dot .\pp.dot -T jpg -o 11.jpg

若电脑上已安装Graphviz，可把上面脚本注释部分打开，即可把dot文件直接生成图片。

把上面脚本注释部分打开，电脑上未安装Graphviz，会报错 ：

java.io.IOException:
Cannot run program “dot” (in directory “\build\reports\dependency-graph”):
CreateProcess error=2, 系统找不到指定的文件。

下载了Graphviz，命令行输入dot -V，若找不到命令需要配置环境变量。我这里是直接在path中添加bin目录即可。