Copy directory from Assets to local directory

Question

I'm trying to use a directory that I have in my assets folder and access it as a File. Is it possible to access something in the Assets directory as a File? If not, how can I copy a directory from the Assets folder to the application's local directory?

I would copy a file like so:

    try     {         InputStream stream = this.getAssets().open("myFile");         OutputStream output = new BufferedOutputStream(new FileOutputStream(this.getFilesDir() + "/myNewFile"));          byte data[] = new byte[1024];         int count;          while((count = stream.read(data)) != -1)         {             output.write(data, 0, count);         }          output.flush();         output.close();         stream.close();     }     catch(IOException e)     {         e.printStackTrace();     } 

However, I'm not sure how I would be able to do this for a directory.

I would rather not build my infrastructure around something that doesn't work, so how would I copy a directory from Assets to a local directory, or is it possible to access a directory in my Assets as a File?

EDIT

This is how I solved it for my own project:

InputStream stream = null; OutputStream output = null;  for(String fileName : this.getAssets().list("demopass")) {     stream = this.getAssets().open("directoryName/" + fileName);     output = new BufferedOutputStream(new FileOutputStream(this.getFilesDir() + "/newDirectory/" + fileName));      byte data[] = new byte[1024];     int count;      while((count = stream.read(data)) != -1)     {         output.write(data, 0, count);     }      output.flush();     output.close();     stream.close();      stream = null;     output = null; } 

Answer 1

As suggested by dmaxi in comment above, you can use his link, with this code:

    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);         }      } 

I took it on this link. Maybe you can combine this code with precedent one.

EDIT: see also AssetManager.

private void copyFolder(String name) {             // "Name" is the name of your folder!     AssetManager assetManager = getAssets();     String[] files = null;      String state = Environment.getExternalStorageState();      if (Environment.MEDIA_MOUNTED.equals(state)) {         // We can read and write the media         // Checking file on assets subfolder         try {             files = assetManager.list(name);         } catch (IOException e) {             Log.e("ERROR", "Failed to get asset file list.", e);         }         // Analyzing all file on assets subfolder         for(String filename : files) {             InputStream in = null;             OutputStream out = null;             // First: checking if there is already a target folder             File folder = new File(Environment.getExternalStorageDirectory() + "/yourTargetFolder/" + name);             boolean success = true;             if (!folder.exists()) {                 success = folder.mkdir();             }             if (success) {                 // Moving all the files on external SD                 try {                     in = assetManager.open(name + "/" +filename);                     out = new FileOutputStream(Environment.getExternalStorageDirectory() + "/yourTargetFolder/" + name + "/" + filename);                     Log.i("WEBVIEW", Environment.getExternalStorageDirectory() + "/yourTargetFolder/" + name + "/" + filename);                     copyFile(in, out);                     in.close();                     in = null;                     out.flush();                     out.close();                     out = null;                 } catch(IOException e) {                     Log.e("ERROR", "Failed to copy asset file: " + filename, e);                 } finally {                     // Edit 3 (after MMs comment)                     in.close();                     in = null;                     out.flush();                     out.close();                     out = null;                 }             }             else {                 // Do something else on failure             }                }     } else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {         // We can only read the media     } else {         // Something else is wrong. It may be one of many other states, but all we need         // is to know is we can neither read nor write     } }  // Method used by copyAssets() on purpose to copy a file. private void copyFile(InputStream in, OutputStream out) throws IOException {     byte[] buffer = new byte[1024];     int read;     while((read = in.read(buffer)) != -1) {         out.write(buffer, 0, read);     } } 

EDIT 2: i'have added an example above: this piece of code copy only a specific folder from assets, to sd card. Let me know if it works!