97 lines
3.4 KiB
Kotlin
97 lines
3.4 KiB
Kotlin
package com.h.pixeldroid.posts.feeds.cachedFeeds.postFeeds
|
|
|
|
import android.os.Bundle
|
|
import android.view.LayoutInflater
|
|
import android.view.View
|
|
import android.view.ViewGroup
|
|
import androidx.lifecycle.ViewModelProvider
|
|
import androidx.lifecycle.lifecycleScope
|
|
import androidx.paging.ExperimentalPagingApi
|
|
import androidx.paging.PagingDataAdapter
|
|
import androidx.paging.RemoteMediator
|
|
import androidx.recyclerview.widget.DiffUtil
|
|
import androidx.recyclerview.widget.RecyclerView
|
|
import com.h.pixeldroid.R
|
|
import com.h.pixeldroid.utils.db.dao.feedContent.FeedContentDao
|
|
import com.h.pixeldroid.posts.StatusViewHolder
|
|
import com.h.pixeldroid.posts.feeds.cachedFeeds.FeedViewModel
|
|
import com.h.pixeldroid.posts.feeds.cachedFeeds.CachedFeedFragment
|
|
import com.h.pixeldroid.posts.feeds.cachedFeeds.ViewModelFactory
|
|
import com.h.pixeldroid.utils.api.objects.FeedContentDatabase
|
|
import com.h.pixeldroid.utils.api.objects.Status
|
|
import com.h.pixeldroid.utils.displayDimensionsInPx
|
|
|
|
|
|
/**
|
|
* Fragment for the home feed or public feed tabs.
|
|
*
|
|
* Takes a "home" boolean in its arguments [Bundle] to determine which
|
|
*/
|
|
@ExperimentalPagingApi
|
|
class PostFeedFragment<T: FeedContentDatabase>: CachedFeedFragment<T>() {
|
|
|
|
private lateinit var mediator: RemoteMediator<Int, T>
|
|
private lateinit var dao: FeedContentDao<T>
|
|
|
|
override fun onCreate(savedInstanceState: Bundle?) {
|
|
super.onCreate(savedInstanceState)
|
|
|
|
adapter = PostsAdapter(requireContext().displayDimensionsInPx())
|
|
|
|
@Suppress("UNCHECKED_CAST")
|
|
if (requireArguments().get("home") as Boolean){
|
|
mediator = HomeFeedRemoteMediator(apiHolder, db) as RemoteMediator<Int, T>
|
|
dao = db.homePostDao() as FeedContentDao<T>
|
|
}
|
|
else {
|
|
mediator = PublicFeedRemoteMediator(apiHolder, db) as RemoteMediator<Int, T>
|
|
dao = db.publicPostDao() as FeedContentDao<T>
|
|
}
|
|
}
|
|
|
|
@ExperimentalPagingApi
|
|
override fun onCreateView(
|
|
inflater: LayoutInflater, container: ViewGroup?,
|
|
savedInstanceState: Bundle?
|
|
): View? {
|
|
|
|
val view = super.onCreateView(inflater, container, savedInstanceState)
|
|
|
|
// get the view model
|
|
@Suppress("UNCHECKED_CAST")
|
|
viewModel = ViewModelProvider(this, ViewModelFactory(db, dao, mediator))
|
|
.get(FeedViewModel::class.java) as FeedViewModel<T>
|
|
|
|
launch()
|
|
initSearch()
|
|
|
|
return view
|
|
}
|
|
|
|
inner class PostsAdapter(private val displayDimensionsInPx: Pair<Int, Int>) : PagingDataAdapter<T, RecyclerView.ViewHolder>(
|
|
object : DiffUtil.ItemCallback<T>() {
|
|
override fun areItemsTheSame(oldItem: T, newItem: T): Boolean {
|
|
return oldItem.id == newItem.id
|
|
}
|
|
|
|
override fun areContentsTheSame(oldItem: T, newItem: T): Boolean =
|
|
oldItem.id == newItem.id
|
|
}
|
|
) {
|
|
|
|
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
|
|
return StatusViewHolder.create(parent)
|
|
}
|
|
|
|
override fun getItemViewType(position: Int): Int {
|
|
return R.layout.post_fragment
|
|
}
|
|
|
|
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
|
|
val uiModel = getItem(position) as Status
|
|
uiModel.let {
|
|
(holder as StatusViewHolder).bind(it, apiHolder, db, lifecycleScope, displayDimensionsInPx)
|
|
}
|
|
}
|
|
}
|
|
} |