How to use

setMinScale

method

in

com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView

/**
 * This is a screen density aware alternative to {@link #setMinScale(float)}; it allows you to express the minimum
 * allowed scale in terms of the maximum pixel density.
 * @param dpi Source image pixel density at minimum zoom.
 */
public final void setMaximumDpi(int dpi) {
  DisplayMetrics metrics = getResources().getDisplayMetrics();
  float averageDpi = (metrics.xdpi + metrics.ydpi)/2;
  setMinScale(averageDpi / dpi);
}

if (maxScale > 1) {
  mImageView.setMinScale(1);
  mImageView.setMinScale(minScale);

/**
 * This is a screen density aware alternative to {@link #setMinScale(float)}; it allows you to express the minimum
 * allowed scale in terms of the maximum pixel density.
 * @param dpi Source image pixel density at minimum zoom.
 */
public final void setMaximumDpi(int dpi) {
  DisplayMetrics metrics = getResources().getDisplayMetrics();
  float averageDpi = (metrics.xdpi + metrics.ydpi)/2;
  setMinScale(averageDpi / dpi);
}