I have started implementation of Glide in my existing project and have been going through docs and examples. I checked sample app of Flickr and am trying to preload images just like it.
I am initialising GlideRequest in fragment and then passing it to the adapter to preload images and display. But when I run my app, I am neither getting any error nor are any images displayed. I have slightly modified my code from sample app as I don't want any model loader.
This is my initialisation in fragment:
private GlideRequests instructorRequestBuilder;
instructorRequestBuilder = GlideApp.with(this);
I assign in it to
preloadRequest
Variable in adapter's constructor.
Then following is the code into bindViewHolder:
private void setImage(final String image, final ImageView imageView)
{
preloadRequest.load(image)
.centerCrop()
.placeholder(R.drawable.placeholder_explore_user)
.error(R.mipmap.ic_launcher)
.listener(new RequestListener()
{
@Override public boolean onLoadFailed(@Nullable GlideException e, Object model,
Target target, boolean isFirstResource)
{
Log.d(TAG, "onLoadFailed: " + e);
return false;
}
@Override
public boolean onResourceReady(Drawable resource, Object model, Target target,
DataSource dataSource, boolean isFirstResource)
{
Log.d(TAG, "onLoadFailed: " + isFirstResource);
Log.d(TAG, "onLoadFailed: " + dataSource);
return false;
}
})
.into(imageView);
}
My adapter implements
ListPreloader.PreloadModelProvider
And this is the code for implemented methods:
@NonNull @Override public List getPreloadItems(int position)
{
return iConnectInstructors.subList(position, position + 1);
}
@Nullable @Override
public RequestBuilder getPreloadRequestBuilder(@NonNull IConnectType item)
{
return preloadRequest.load(((User) item)
.getProfileImage250())
.placeholder(R.drawable.placeholder_explore_user)
.centerCrop()
.error(R.mipmap.ic_launcher);
}
PreloadSize and PreLoader are initialised as below:
ViewPreloadSizeProvider preloadSizeProvider = new ViewPreloadSizeProvider<>();
RecyclerViewPreloader preloader = new RecyclerViewPreloader(
GlideApp.with(this), adapter,
preloadSizeProvider, 6);
rvInstructor.addOnScrollListener(preloader);
rvInstructor.setItemViewCacheSize(0);
Why is this not showing any items in the recyclerview?
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