How to use

refreshRequiredTiles

method

in

com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView

/**
 * Sets scale and translate ready for the next draw.
 */
private void preDraw() {
  if (getWidth() == 0 || getHeight() == 0 || sWidth <= 0 || sHeight <= 0) {
    return;
  }
  // If waiting to translate to new center position, set translate now
  if (sPendingCenter != null && pendingScale != null) {
    scale = pendingScale;
    if (vTranslate == null) {
      vTranslate = new PointF();
    }
    vTranslate.x = (getWidth()/2) - (scale * sPendingCenter.x);
    vTranslate.y = (getHeight()/2) - (scale * sPendingCenter.y);
    sPendingCenter = null;
    pendingScale = null;
    fitToBounds(true);
    refreshRequiredTiles(true);
  }
  // On first display of base image set up position, and in other cases make sure scale is correct.
  fitToBounds(false);
}

    refreshRequiredTiles(eagerLoadingEnabled);
  refreshRequiredTiles(eagerLoadingEnabled);
    refreshRequiredTiles(eagerLoadingEnabled);
refreshRequiredTiles(true);
return true;

/**
 * Enable or disable pan gesture detection. Disabling pan causes the image to be centered. Pan
 * can still be changed from code.
 * @param panEnabled true to enable panning, false to disable.
 */
public final void setPanEnabled(boolean panEnabled) {
  this.panEnabled = panEnabled;
  if (!panEnabled && vTranslate != null) {
    vTranslate.x = (getWidth()/2) - (scale * (sWidth()/2));
    vTranslate.y = (getHeight()/2) - (scale * (sHeight()/2));
    if (isReady()) {
      refreshRequiredTiles(true);
      invalidate();
    }
  }
}

refreshRequiredTiles(finished);
if (finished) {
  if (anim.listener != null) {

  execute(task);
refreshRequiredTiles(true);

refreshRequiredTiles(finished);
if (finished) {
  if (anim.listener != null) {

/**
 * Sets scale and translate ready for the next draw.
 */
private void preDraw() {
  if (getWidth() == 0 || getHeight() == 0 || sWidth <= 0 || sHeight <= 0) {
    return;
  }
  // If waiting to translate to new center position, set translate now
  if (sPendingCenter != null && pendingScale != null) {
    scale = pendingScale;
    if (vTranslate == null) {
      vTranslate = new PointF();
    }
    vTranslate.x = (getWidth()/2) - (scale * sPendingCenter.x);
    vTranslate.y = (getHeight()/2) - (scale * sPendingCenter.y);
    sPendingCenter = null;
    pendingScale = null;
    fitToBounds(true);
    refreshRequiredTiles(true);
  }
  // On first display of base image set up position, and in other cases make sure scale is correct.
  fitToBounds(false);
}

    refreshRequiredTiles(false);
  refreshRequiredTiles(false);
    refreshRequiredTiles(false);
refreshRequiredTiles(true);
return true;

/**
 * Enable or disable pan gesture detection. Disabling pan causes the image to be centered.
 */
public final void setPanEnabled(boolean panEnabled) {
  this.panEnabled = panEnabled;
  if (!panEnabled && vTranslate != null) {
    vTranslate.x = (getWidth()/2) - (scale * (sWidth()/2));
    vTranslate.y = (getHeight()/2) - (scale * (sHeight()/2));
    if (isReady()) {
      refreshRequiredTiles(true);
      invalidate();
    }
  }
}

  execute(task);
refreshRequiredTiles(true);