从命令行“无效的资源目录名称”生成 R.java 文件

Question

我需要使用命令行从资源构建 R.java 文件。我使用以下 Java 程序执行此操作。我收到错误：

invalid resource directory name: C:\Users\Muzammil-Husnain\testing\Soothing-snow-fall\res/drawable-tvdpi

和

invalid resource directory name: C:\Users\Muzammil-Husnain\testing\Soothing-snow-fall\res/drawable-xhdpi

如果我从我的 res 文件夹中删除这两个文件夹，它会显示

ERROR: input directory 'Files' does not exist

这是我的代码：

public static String ProjectPath = "C:\Users\Muzammil-Husnain\testing\Soothing-snow-fall";
public static String ANDROID_HOME = "C:/Program Files (x86)/Android/android-sdk";

public static void generateRfile() {
    try {
        File projectDirectoryFile = new File(ProjectPath);
        String command = "aapt package -v -f -m "+
        " -S \""+projectDirectoryFile.getCanonicalPath()+"/res\"" +
        " -J \""+projectDirectoryFile.getCanonicalPath()+"/gen\"" +
        " -M \""+projectDirectoryFile.getCanonicalPath()+"/AndroidManifest.xml\"" +
        " -I C:\Program Files (x86)\Android\android-sdk\platforms\android-21\android.jar\"";
        System.out.println("Directory Path : "+projectDirectoryFile.getCanonicalPath());
        System.out.println(command);
        ProcessBuilder processBuilder = new ProcessBuilder("cmd.exe", "/c", command);
        processBuilder.redirectErrorStream(true);
        Process process = processBuilder.start();
        BufferedReader r = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line;
        while (true) {
            line = r.readLine();
            if (line == null) {
                break;
            }
            System.out.println(line);
        }

    } catch (IOException ex) {
        Logger.getLogger(RunApplicationOnPrject.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Answer 1

您正在安装调用 cmd.exe 的命令行，并且该目录不在双引号内，因此 cmd.exe 正在解释 C:\Program Files 中的 "Files"作为不同的论点。尝试将 directories/files 规范放在双引号之间，如下所示：

    String command = "aapt package -v -f -m "+
    " -S \""+projectDirectoryFile.getCanonicalPath()+"/res\"" +
    " -J \""+projectDirectoryFile.getCanonicalPath()+"/gen\"" +
    " -M \""+projectDirectoryFile.getCanonicalPath()+"/AndroidManifest.xml\"" +
    " -I \""+ANDROID_HOME+"/platforms/android-18/android.jar\"";

Answer 2

编辑：

我的一个朋友向我指出 gradle. It is a sophisticated build automation tool, which can also be used from the command line. Since setting up resources and assets for Android is always a nightmare you might want to take a look at it. There seem to be a few tutorials for creating Android apps like this one or this one。

根据 this SO post，您可能需要跳过一些步骤才能将资源文件夹正确添加到项目中。

另一个问题是 sometimes comes up 已过时 aapt and/or Android SDK 版本。您应该检查是否可以将它们更新到任何更新的版本。

Answer 3

android aapt 未找到 jar 文件问题是代码中缺少开始引用

 " -I C:\Program Files (x86)\Android\android-sdk\platforms\android-21\android.jar\""

虽然结束引用存在，但 url 到 android.jar 被打破所以我改变了。所以我将代码更改为

 " -I \"C:\Program Files (x86)\Android\android-sdk\platforms\android-21\android.jar\""

问题已解决 :-)

从命令行“无效的资源目录名称”生成 R.java 文件

generating R.java file from command line “invalid resource directory name”

java

command-line

android