@Result(FlickrApi.LOAD_IMAGES_EVENT)
private void onPhotosLoaded(List<Photo> photos, boolean hasMore) {
mPhotoCount = photos.size();
mGridAdapter.setPhotos(photos, hasMore);
mPagerAdapter.setPhotos(photos);
mGridAdapter.onNextItemsLoaded();
// Ensure listener called for 0 position
mPagerListener.onPageSelected(mViews.pager.getCurrentItem());
// Restoring saved state
if (mPagerPhotoPosition != -1) {
if (mPagerPhotoPosition < mPhotoCount) {
mPagerAdapter.setActivated(true);
mAnimator.enter(mPagerPhotoPosition, false);
}
mPagerPhotoPosition = -1;
}
if (mGridPosition != -1) {
if (mGridPosition < mPhotoCount) {
((GridLayoutManager) mViews.grid.getLayoutManager())
.scrollToPositionWithOffset(mGridPosition, mGridPositionFromTop);
}
mGridPosition = -1;
mGridPositionFromTop = 0;
}
}
private void initGrid() {
// Setting up images grid
final int cols = getResources().getInteger(R.integer.images_grid_columns);
mViews.grid.setLayoutManager(new GridLayoutManager(this, cols));
mViews.grid.setItemAnimator(new DefaultItemAnimator());
mGridAdapter = new FlickrPhotoListAdapter(this);
mGridAdapter.setLoadingOffset(PAGE_SIZE / 2);
mGridAdapter.setCallbacks(
new EndlessRecyclerAdapter.LoaderCallbacks() {
@Override
public boolean canLoadNextItems() {
return mGridAdapter.canLoadNext();
}
@Override
public void loadNextItems() {
// We should either load all items that were loaded before state save / restore,
// or next page if we already loaded all previously shown items
int count = Math.max(mPhotoCount, mGridAdapter.getCount() + PAGE_SIZE);
Events.create(FlickrApi.LOAD_IMAGES_EVENT).param(count).post();
}
});
mViews.grid.setAdapter(mGridAdapter);
}
@Failure(FlickrApi.LOAD_IMAGES_EVENT)
private void onPhotosLoadFail() {
mGridAdapter.onNextItemsError();
// Skipping state restoration
if (mPagerPhotoPosition != -1) {
// We can't show image right now, so we should return back to list
onPositionUpdate(0f, true);
}
mPagerPhotoPosition = -1;
mGridPosition = -1;
mGridPositionFromTop = 0;
}