Android奇技淫巧之无Context对象获取cacheDir

/**
 * 同 context.getCacheDir()
 */
public static File getCacheDir() {
    try {
        return File.createTempFile("test", null).getParentFile();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

/**
 * 同 context.getFilesDir()
 */
public static File getFilesDir() {
    try {
        File cacheDir = File.createTempFile("test", null).getParentFile();
        File filesDir = new File(cacheDir.getParent(), "files");
        filesDir.mkdir();
        return filesDir;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}