@Override
public void onCancel() {
if (DEBUG) {
CLog.d(LOG_TAG, MSG_TASK_CANCEL, this, mImageTask);
}
mImageLoader.getImageProvider().cancelTask(mImageTask);
mImageTask.onLoadTaskCancel();
mImageLoader.mLoadWorkList.remove(mImageTask.getIdentityKey());
}
@Override
public void onFinish(boolean canceled) {
if (DEBUG) {
CLog.d(LOG_TAG, MSG_TASK_FINISH, this, mImageTask, mImageLoader.mExitTasksEarly);
}
if (mImageLoader.mExitTasksEarly) {
return;
}
if (!isCancelled() && !mImageLoader.mExitTasksEarly) {
mImageTask.onLoadTaskFinish(mDrawable, mImageLoader.mImageLoadHandler);
}
mImageLoader.mLoadWorkList.remove(mImageTask.getIdentityKey());
}
/**
* Add the ImageTask into loading list.
*
* @param imageTask
* @param imageView
*/
public void addImageTask(ImageTask imageTask, CubeImageView imageView) {
if (!mHasBeenAddedToComponentManager) {
CLog.w(LOG_TAG, "ImageLoader has not been add to a Component Manager.", this);
}
LoadImageTask runningTask = mLoadWorkList.get(imageTask.getIdentityKey());
if (runningTask != null) {
if (imageView != null) {
if (DEBUG) {
CLog.d(LOG_TAG, MSG_ATTACK_TO_RUNNING_TASK, imageTask, runningTask.getImageTask());
}
runningTask.getImageTask().addImageView(imageView);
runningTask.getImageTask().notifyLoading(mImageLoadHandler, imageView);
}
return;
} else {
imageTask.addImageView(imageView);
}
imageTask.onLoading(mImageLoadHandler);
LoadImageTask loadImageTask = createLoadImageTask(imageTask);
mLoadWorkList.put(imageTask.getIdentityKey(), loadImageTask);
mImageTaskExecutor.execute(loadImageTask);
}
@Override
public void doInBackground() {
if (DEBUG) {
CLog.d(LOG_TAG, MSG_TASK_DO_IN_BACKGROUND, this, mImageTask);
}
if (mImageTask.getStatistics() != null) {
mImageTask.getStatistics().s1_beginLoad();
}
Bitmap bitmap = null;
// Wait here if work is paused and the task is not cancelled
synchronized (mImageLoader.mPauseWorkLock) {
while (mImageLoader.mPauseWork && !isCancelled()) {
try {
if (DEBUG) {
CLog.d(LOG_TAG, MSG_TASK_WAITING, this, mImageTask);
}
mImageLoader.mPauseWorkLock.wait();
} catch (InterruptedException e) {
}
}
}
// If this task has not been cancelled by another
// thread and the ImageView that was originally bound to this task is still bound back
// to this task and our "exit early" flag is not set then try and fetch the bitmap from
// the cache
if (!isCancelled()
&& !mImageLoader.mExitTasksEarly
&& (mImageTask.isPreLoad() || mImageTask.stillHasRelatedImageView())) {
try {
bitmap =
mImageLoader.mImageProvider.fetchBitmapData(
mImageLoader, mImageTask, mImageLoader.mImageReSizer);
if (DEBUG) {
CLog.d(LOG_TAG, MSG_TASK_AFTER_fetchBitmapData, this, mImageTask, isCancelled());
}
mDrawable =
mImageLoader.mImageProvider.createBitmapDrawable(mImageLoader.mResources, bitmap);
mImageLoader.mImageProvider.addBitmapToMemCache(mImageTask.getIdentityKey(), mDrawable);
} catch (Exception e) {
e.printStackTrace();
} catch (OutOfMemoryError e) {
e.printStackTrace();
}
}
}
/**
* Detach the ImageView from the ImageTask.
*
* @param imageTask
* @param imageView
*/
public void detachImageViewFromImageTask(ImageTask imageTask, CubeImageView imageView) {
imageTask.removeImageView(imageView);
if (imageTask.isLoading()) {
if (!imageTask.isPreLoad() && !imageTask.stillHasRelatedImageView()) {
LoadImageTask task = mLoadWorkList.get(imageTask.getIdentityKey());
if (task != null) {
task.cancel();
}
if (DEBUG) {
CLog.d(LOG_TAG, "%s previous work is cancelled.", imageTask);
}
}
}
if (!imageTask.stillHasRelatedImageView()) {
imageTask.tryToRecycle();
}
}
