How to use

isBaseLayerReady

method

in

com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView

/**
 * Check whether either the full size bitmap or base layer tiles are loaded. First time, send image
 * loaded event to listener.
 */
private boolean checkImageLoaded() {
  boolean imageLoaded = isBaseLayerReady();
  if (!imageLoadedSent && imageLoaded) {
    preDraw();
    imageLoadedSent = true;
    onImageLoaded();
    if (onImageEventListener != null) {
      onImageEventListener.onImageLoaded();
    }
  }
  return imageLoaded;
}

/**
 * Called by worker task when a tile has loaded. Redraws the view.
 */
private synchronized void onTileLoaded() {
  debug("onTileLoaded");
  checkReady();
  checkImageLoaded();
  if (isBaseLayerReady() && bitmap != null) {
    if (!bitmapIsCached) {
      bitmap.recycle();
    }
    bitmap = null;
    if (onImageEventListener != null && bitmapIsCached) {
      onImageEventListener.onPreviewReleased();
    }
    bitmapIsPreview = false;
    bitmapIsCached = false;
  }
  invalidate();
}

/**
 * Check whether view and image dimensions are known and either a preview, full size image or
 * base layer tiles are loaded. First time, send ready event to listener. The next draw will
 * display an image.
 */
private boolean checkReady() {
  boolean ready = getWidth() > 0 && getHeight() > 0 && sWidth > 0 && sHeight > 0 && (bitmap != null || isBaseLayerReady());
  if (!readySent && ready) {
    preDraw();
    readySent = true;
    onReady();
    if (onImageEventListener != null) {
      onImageEventListener.onReady();
    }
  }
  return ready;
}

if (tileMap != null && isBaseLayerReady()) {

/**
 * Check whether either the full size bitmap or base layer tiles are loaded. First time, send image
 * loaded event to listener.
 */
private boolean checkImageLoaded() {
  boolean imageLoaded = isBaseLayerReady();
  if (!imageLoadedSent && imageLoaded) {
    preDraw();
    imageLoadedSent = true;
    onImageLoaded();
    if (onImageEventListener != null) {
      onImageEventListener.onImageLoaded();
    }
  }
  return imageLoaded;
}

/**
 * Called by worker task when a tile has loaded. Redraws the view.
 */
private synchronized void onTileLoaded() {
  debug("onTileLoaded");
  checkReady();
  checkImageLoaded();
  if (isBaseLayerReady() && bitmap != null) {
    if (!bitmapIsCached) {
      bitmap.recycle();
    }
    bitmap = null;
    if (onImageEventListener != null && bitmapIsCached) {
      onImageEventListener.onPreviewReleased();
    }
    bitmapIsPreview = false;
    bitmapIsCached = false;
  }
  invalidate();
}

if (tileMap != null && isBaseLayerReady()) {

/**
 * Check whether view and image dimensions are known and either a preview, full size image or
 * base layer tiles are loaded. First time, send ready event to listener. The next draw will
 * display an image.
 */
private boolean checkReady() {
  boolean ready = getWidth() > 0 && getHeight() > 0 && sWidth > 0 && sHeight > 0 && (bitmap != null || isBaseLayerReady());
  if (!readySent && ready) {
    preDraw();
    readySent = true;
    onReady();
    if (onImageEventListener != null) {
      onImageEventListener.onReady();
    }
  }
  return ready;
}