title: Get random images from specific folder
body: <p>I have an android app that generates 3 random images from my external storage. The random image I get is then set to an Imageview which is working. The problem is that I do not want to view every picture but just get random images from one specific folder in the external folders . How do I change the code to get this? </p>
  
  <pre><code>public class SuggestedOutfit extends AppCompatActivity{
  
  public ImageView shirts;
  public ImageView pants;
  public ImageView shoes;
  Button reload;
  private Bitmap currentBitmap = null;
  String[] projection = new String[]{
          MediaStore.Images.Media.DATA,
  };
  
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.suggested_outfit);
      shirts = (ImageView)findViewById(R.id.shirtImage);
      pants = (ImageView)findViewById(R.id.pantsImage);
      shoes = (ImageView)findViewById(R.id.shoesImage);
  
      shirts.setImageBitmap(getImage());
      pants.setImageBitmap(getImage());
      shoes.setImageBitmap(getImage());
  
      reload = (Button)findViewById(R.id.getNewOutfit);
      reload.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
              finish();
              startActivity(getIntent());
          }
      });
  }
  
  
  public Bitmap getImage () {
      Uri images = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
      Cursor cur = getContentResolver().query(images,
              projection,"", null, ""
      );
      final ArrayList&lt;String&gt; imagesPath = new ArrayList&lt;String&gt;();
      if (cur.moveToFirst()) {
  
          int dataColumn = cur.getColumnIndex(
                  MediaStore.Images.Media.DATA);
          do {
              imagesPath.add(cur.getString(dataColumn));
          } while (cur.moveToNext());
      }
      cur.close();
      final Random random = new Random();
      final int count = imagesPath.size();
      int number = random.nextInt(count);
      String path = imagesPath.get(number);
      currentBitmap = BitmapFactory.decodeFile(path);
  
      return currentBitmap;
  }
  
  }
  </code></pre>