title: Change NumberPicker TextSize
body: <p>How do i set text size of center selected value of a number picker ? and also when scrolled the size of the center number should be greater than the others. </p>
  
  <p>I have tried using the following code : </p>
  
  <pre><code>public static boolean setNumberPickerTextColor(NumberPicker numberPicker, int color) {
          final int count = numberPicker.getChildCount();
          for (int i = 0; i &lt; count; i++) {
              View child = numberPicker.getChildAt(i);
              if (child instanceof EditText) {
                  try {
                      Field selectorWheelPaintField = numberPicker.getClass()
                              .getDeclaredField("mSelectorWheelPaint");
                      selectorWheelPaintField.setAccessible(true);
                      ((Paint) selectorWheelPaintField.get(numberPicker)).setColor(color);
                      ((EditText) child).setTextColor(color);
                      ((EditText) child).setTextSize(48);
                      numberPicker.invalidate();
                      return true;
                  } catch (NoSuchFieldException | IllegalAccessException | IllegalArgumentException e) {
                      Log.w("setNumberPickerTextColor", e);
                  }
              }
          }
          return false;
      }
  </code></pre>
  
  <p>but after scroll the text size returns to normal</p>