Question

I have some 50 images which i want to display on view dynamically by picking images from drawable folder .how should i use them without making use of switch cases.

Answer 1

If you are interested to get image as a slide show showing all the images then you could simply use an integer array of all the images and next simply get the images using the array index.
You can use the link click here and you can show the image as a slide show (perhaps you need to do some modifications in that)

private void setImagesToFlipper(ViewFlipper flipper) {

  for (int count = 0; count < imageCountArray - 1; count++) {
   ImageView imageView = new ImageView(this);
   Bitmap  bmp = BitmapFactory.decodeResource(getResources(), imageCountArray[count]);
   imageView.setImageBitmap(bmp);
   flipper.addView(imageView);

  }

Where imageCountArray is something like this :

 int imageCountArray[] = {R.drawable.image0,R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,};

and be sure that you are having images in your resources drawables folder

Edit :

or even you can use something like

String mDrawableName = "image1";
int resID = getResources().getIdentifier(mDrawableName , "drawable", getPackageName());

and use this id instead of the array

Hope this helps.Happy Coding