How to display files on the SD card in a ListView?

Question

I would like to create a button that when clicked will go to a class that displays all media files from an SD card using a ListView.

After selecting fro

Answer 1

Add a Method GetFiles() to your program. Call it to get an ArrayList<> of all the files. You can then use it to populate your listview. You need to provide String argument DirectoryPath.

The Function:

public ArrayList GetFiles(String DirectoryPath) {
    ArrayList MyFiles = new ArrayList();
    File f = new File(DirectoryPath);

    f.mkdirs();
    File[] files = f.listFiles();
    if (files.length == 0)
        return null;
    else {
        for (int i=0; i

Usage Example:

@Override
public void onCreate() {
// Other Code

    ListView lv;
    ArrayList FilesInFolder = GetFiles("/sdcard/somefolder");
    lv = (ListView)findViewById(R.id.filelist);

    lv.setAdapter(new ArrayAdapter(this,
        android.R.layout.simple_list_item_1, FilesInFolder));

    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    public void onItemClick(AdapterView parent, View v, int position, long id) {
            // Clicking on items
         }
    });
}

Make sure that the External Storage is Readable: http://developer.android.com/guide/topics/data/data-storage.html#filesExternal

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