我怎样才能从我的Andr​​oid应用程序获取资源的目录列表？ [英] How can I get a directory listing of resources from my Android app?

问题描述

我的Andr​​oid应用程序中的资产目录中的一些文件，我想通过列出该目录中的文件，并打开每个打开的启动。我试图用AssetManager要做到这一点，但它似乎并没有这样做，因为我期望的那样。我的示例code是如下。这是正确的做法还是有更好的方法来做到这一点？

My Android application has some files in the assets directory that I want to open on startup by listing the files in the directory and opening each. I am trying to use the AssetManager to do this but it does not seem to do as I would expect. My sample code is below. Is this the correct way or is there a better way to do this?

和我使用下面的方法来打印出资产的目录树。

And I am using the following method to print out the assets directory tree.

void displayFiles (AssetManager mgr, String path) {
    try {
        String list[] = mgr.list(path);
        if (list != null)
            for (int i=0; i<list.length; ++i)
                {
                    Log.v("Assets:", path +"/"+ list[i]);
                    displayFiles(mgr, path + list[i]);
                }
    } catch (IOException e) {
        Log.v("List error:", "can't list" + path);
    }

}

从我的活动的onCreate方法，我做到以下几点：

From my Activity's onCreate method I do the following:

final AssetManager mgr = getAssets();    
displayFiles(mgr, "/assets"); 
displayFiles(mgr, "./assets"); 
displayFiles(mgr, "/");
displayFiles(mgr, "./");

这给了我下面的输出

Which gives me the following output

09-29 20:08:27.843: DEBUG/GFlash(6543): //AndroidManifest.xml 
09-29 20:08:27.954: DEBUG/GFlash(6543): //META-INF
09-29 20:08:28.063: DEBUG/GFlash(6543): //assets
09-29 20:08:28.233: DEBUG/GFlash(6543): //classes.dex 
09-29 20:08:28.383: DEBUG/GFlash(6543): //com
09-29 20:08:28.533: DEBUG/GFlash(6543): //res
09-29 20:08:28.683: DEBUG/GFlash(6543): //resources.arsc

在此先感谢！

Thanks in advance!

约翰·

推荐答案

唉。的问题是在displayFiles方法，它缺少隔板，/，目录和文件名之间。很抱歉，如果我浪费任何人的时间。 displayFiles的修正版本如下。

Ugh. The problem was in the displayFiles method, it was missing the separator, "/", between the directory and the filename. Sorry if I wasted anyone's time. A corrected version of displayFiles is below.

void displayFiles (AssetManager mgr, String path) {
    try {
        String list[] = mgr.list(path);
        if (list != null)
            for (int i=0; i<list.length; ++i)
                {
                    Log.v("Assets:", path +"/"+ list[i]);
                    displayFiles(mgr, path + "/" + list[i]);
                }
    } catch (IOException e) {
        Log.v("List error:", "can't list" + path);
    }

}

约翰·

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