// main thread
public boolean addTarget(final ImageConsumer imageHolder) {
if (future.isCancelled()) {
return false;
} // we should start a new task
imageHolder.onStart(this, request.url);
synchronized (targets) {
if (result != null) {
imagesManager.setResultImage(imageHolder, result, false);
imageHolder.onFinish(request.url, result);
} else if (error != null) {
imageHolder.onError(request.url, error);
} else {
imageHolder.currentLoader = this;
targets.add(imageHolder);
}
}
return true;
}
// main thread
public void removeTarget(final ImageConsumer consumer) {
if (imagesManager.debug) {
Log.d(TAG, "Cancel request: " + request.getKey() + "\nLoader: " + this);
}
consumer.onCancel(request.url);
synchronized (targets) {
targets.remove(consumer);
if (targets.isEmpty()) {
if (!future.cancel(true)) {
if (imagesManager.debug) {
Log.d(TAG, "Can't cancel task so let's try to remove loader manually");
}
imagesManager.currentLoads.remove(request.getKey(), this);
}
}
}
}
private void post(final Runnable action) {
ImageConsumer consumer = findMainTarget();
if (consumer != null) {
consumer.post(action);
}
}