Displaying images from specific folder in sd card in grid view

android, android-sdcard, gridview

Solution

Sorry for Answering late... Below I am posting the final solution

public class Album3 extends Activity {
File [] mediaFiles;
File imageDir;
static GridView gridView;
ImageAdapter adapter;
Intent in;
ImageButton btncam;
String name = null;
ArrayList<Bitmap> bmpArray = new ArrayList<Bitmap>();
ArrayList<String> fileName = new ArrayList<String>();
public static final String TAG = "Album3Activity";

public void onCreate(Bundle savedInstanceState) 
{
    imageDir = new File(Environment.getExternalStorageDirectory().toString()+
             "/diplomat");
    super.onCreate(savedInstanceState);
    if((imageDir.exists()))
    {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.grid);
        mediaFiles = imageDir.listFiles();
        //Log.d("Length of images",""+mediaFiles.length);
        for(File file : mediaFiles)
        {
            bmpArray.add(convertToBitmap(file));
            fileName.add(readFileName(file));
            //Log.d(TAG + "bmpArray Size", ""+bmpArray.size());
            //Log.d(TAG, "call to convertToBitmap");
        }//for

        adapter = new ImageAdapter(this, bmpArray, fileName);
        gridView = (GridView)findViewById(R.id.gridview);
        gridView.setAdapter(adapter);
        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED
                , Uri.parse(Environment.getExternalStorageDirectory().toString()+"/diplomat")));

        gridView.setOnItemClickListener(new OnItemClickListener() {

        public void onItemClick(AdapterView<?> arg0, View arg1, int position,
                long arg3) {
            in = new Intent(getApplicationContext(), FullScreen.class);
            in.putExtra("id", position);
            startActivity(in);
        }
    });
    }//if
    else
    {
        setContentView(R.layout.no_media);
    }
}//onCreate

public static Bitmap convertToBitmap(File file) 
{
    URL url = null;
    try 
    {
        url = file.toURL();
    } catch (MalformedURLException e1) 
    {
        //Log.d(TAG, e1.toString());
    }//catch

    Bitmap bmp = null;
    try
    {
       bmp = BitmapFactory.decodeStream(url.openStream());
       //bmp.recycle();
    }catch(Exception e)
    {
        //Log.d(TAG, "Exception: "+e.toString());
    }//catch
    return bmp;
}//convertToBitmap

public String readFileName(File file){
    String name = file.getName();
    return name;
}//readFileName
}//class

Problem

I had developed an application in which I have to display images from specific folder in sd card. My code is working fine but it is showing all images that are sd card. I had given selection args as my folder's name as it has been metioned the following post: Displaying images from a specific folder on the SDCard using a gridview But, it didn't worked. Please, suggest me how to do this: Below I am posting my code. ``` public class Album1Activity extends Activity { static Cursor imageCursor; static int columnIndex; GridView gridView; Intent in; protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.grid); String[] imgColumnID = {MediaStore.Images.Thumbnails._ID}; Uri uri = MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI; imageCursor = managedQuery(uri, imgColumnID, null, null, MediaStore.Images.Thumbnails.IMAGE_ID); columnIndex = imageCursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID); gridView = (GridView)findViewById(R.id.gridview); gridView.setAdapter(new ImageAdapter(getApplicationContext())); gridView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View v, int position, long id) { String[] dataLocation = {MediaStore.Images.Media.DATA}; //String []dataLocation = {Environment.getExternalStorageDirectory().getAbsolutePath()}; imageCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, dataLocation, null, null, null); columnIndex = imageCursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); imageCursor.moveToPosition(position); String imgPath = imageCursor.getString(columnIndex); in = new Intent(getApplicationContext(), FullScreen.class); in.putExtra("id", imgPath); startActivity(in); }//onItemClickListener }); }//onCreate public static class ImageAdapter extends BaseAdapter{ private Context context; //Album1Activity act = new Album1Activity(); public ImageAdapter(Context context){ this.context = context; }//ImageAdapter public int getCount() { // TODO Auto-generated method stub return imageCursor.getCount(); }//getCount public Object getItem(int position) { // TODO Auto-generated method stub return position; }//getItem public long getItemId(int position) { // TODO Auto-generated method stub return position; }//getItemId public View getView(int position, View convertView, ViewGroup parent) { ImageView iv; if(convertView == null){ iv = new ImageView(context); imageCursor.moveToPosition(position); int imageID = imageCursor.getInt(columnIndex); iv.setImageURI(Uri.withAppendedPath(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, "" +imageID)); iv.setScaleType(ImageView.ScaleType.FIT_XY); iv.setPadding(5, 5, 5, 5); iv.setLayoutParams(new GridView.LayoutParams(100, 100)); }//if else{ iv = (ImageView)convertView; }//else return iv; }//getView }//ImageAdapter ``` }//Album1Activity

Original source

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