/**
* @return <b>true</b> - if current ImageAware is reused for displaying another image;
* <b>false</b> - otherwise
*/
private boolean isViewReused() {
String currentCacheKey = engine.getLoadingUriForView(imageAware);
// Check whether memory cache key (image URI) for current ImageAware is actual.
// If ImageAware is reused for another task then current task should be cancelled.
boolean imageAwareWasReused = !memoryCacheKey.equals(currentCacheKey);
if (imageAwareWasReused) {
log(LOG_TASK_CANCELLED_IMAGEAWARE_REUSED);
return true;
}
return false;
}
/**
* Check whether the image URI of this task matches to image URI which is actual for current
* ImageView at this moment and fire {@link ImageLoadingListener#onLoadingCancelled()} event if it
* doesn't.
*/
private boolean checkTaskIsNotActual() {
String currentCacheKey = engine.getLoadingUriForView(imageView);
// Check whether memory cache key (image URI) for current ImageView is actual.
// If ImageView is reused for another task then current task should be cancelled.
boolean imageViewWasReused = !memoryCacheKey.equals(currentCacheKey);
if (imageViewWasReused) {
handler.post(
new Runnable() {
@Override
public void run() {
listener.onLoadingCancelled();
}
});
}
if (imageViewWasReused) log(LOG_TASK_CANCELLED, memoryCacheKey);
return imageViewWasReused;
}
/** Returns URI of image which is loading at this moment into passed {@link ImageView} */
public String getLoadingUriForView(ImageView imageView) {
return engine.getLoadingUriForView(imageView);
}
/**
* Returns URI of image which is loading at this moment into passed {@link
* android.widget.ImageView ImageView}
*/
public String getLoadingUriForView(ImageView imageView) {
return engine.getLoadingUriForView(new ImageViewAware(imageView));
}
/**
* Returns URI of image which is loading at this moment into passed {@link
* com.nostra13.universalimageloader.core.imageaware.ImageAware ImageAware}
*/
public String getLoadingUriForView(ImageAware imageAware) {
return engine.getLoadingUriForView(imageAware);
}