teams: smoother resource remove (fixes #4916)

app/src/main/java/org/ole/planet/myplanet/ui/team/teamResource/AdapterTeamResource.kt

@@ -11,10 +11,15 @@ import org.ole.planet.myplanet.callback.OnHomeItemClickListener
 import org.ole.planet.myplanet.databinding.RowTeamResourceBinding
 import org.ole.planet.myplanet.model.RealmMyLibrary
 import org.ole.planet.myplanet.model.RealmMyTeam.Companion.getTeamCreator
-import org.ole.planet.myplanet.ui.team.teamResource.AdapterTeamResource.ViewHolderTeamResource
 
-class AdapterTeamResource(private val context: Context, private val list: List<RealmMyLibrary>, mRealm: Realm, teamId: String?, private val settings: SharedPreferences) : RecyclerView.Adapter<ViewHolderTeamResource>() {
-    private lateinit var rowTeamResourceBinding: RowTeamResourceBinding
+class AdapterTeamResource(
+    private val context: Context,
+    private val list: MutableList<RealmMyLibrary>,
+    private val mRealm: Realm,
+    teamId: String?,
+    private val settings: SharedPreferences
+) : RecyclerView.Adapter<AdapterTeamResource.ViewHolderTeamResource>() {
+
     private var listener: OnHomeItemClickListener? = null
     private val teamCreator: String = getTeamCreator(teamId, mRealm)
 
@@ -25,25 +30,48 @@ class AdapterTeamResource(private val context: Context, private val list: List<R
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolderTeamResource {
-        rowTeamResourceBinding = RowTeamResourceBinding.inflate(LayoutInflater.from(context), parent, false)
-        return ViewHolderTeamResource(rowTeamResourceBinding)
+        val binding = RowTeamResourceBinding.inflate(LayoutInflater.from(context), parent, false)
+        return ViewHolderTeamResource(binding)
     }
 
     override fun onBindViewHolder(holder: ViewHolderTeamResource, position: Int) {
-        rowTeamResourceBinding.tvTitle.text = list[position].title
-        rowTeamResourceBinding.tvDescription.text = list[position].description
+        val resource = list[position]
+
+        holder.binding.tvTitle.text = resource.title
+        holder.binding.tvDescription.text = resource.description
+
         holder.itemView.setOnClickListener {
-            listener?.openLibraryDetailFragment(list[position])
+            listener?.openLibraryDetailFragment(resource)
         }
-        rowTeamResourceBinding.ivRemove.setOnClickListener { }
-        if (!settings.getString("userId", "--").equals(teamCreator, ignoreCase = true)) {
-            rowTeamResourceBinding.ivRemove.visibility = View.GONE
+
+        holder.binding.ivRemove.setOnClickListener {
+            removeResource(resource, position)
+        }
+
+        holder.binding.ivRemove.visibility = if (settings.getString("userId", "--") == teamCreator) {
+            View.VISIBLE
+        } else {
+            View.GONE
         }
     }
 
     override fun getItemCount(): Int {
         return list.size
     }
 
-    class ViewHolderTeamResource(rowTeamResourceBinding: RowTeamResourceBinding) : RecyclerView.ViewHolder(rowTeamResourceBinding.root)
+    fun removeResource(resource: RealmMyLibrary, position: Int) {
+        if (position < 0 || position >= list.size) return
+
+        mRealm.executeTransaction { realm ->
+            val itemToDelete = realm.where(RealmMyLibrary::class.java)
+                .equalTo("id", resource.id)
+                .findFirst()
+            itemToDelete?.deleteFromRealm()
+        }
+
+        list.removeAt(position)
+        notifyItemRemoved(position)
+    }
+
+    class ViewHolderTeamResource(val binding: RowTeamResourceBinding) : RecyclerView.ViewHolder(binding.root)
 }

app/src/main/java/org/ole/planet/myplanet/ui/team/teamResource/TeamResourceFragment.kt

@@ -47,8 +47,14 @@ class TeamResourceFragment : BaseTeamFragment(), TeamPageListener {
     }
 
     private fun showLibraryList() {
-        val libraries: List<RealmMyLibrary> = mRealm.where(RealmMyLibrary::class.java).`in`("id", getResourceIds(teamId, mRealm).toTypedArray<String>()).findAll()
-        adapterLibrary = settings?.let { AdapterTeamResource(requireActivity(), libraries, mRealm, teamId, it) }!!
+        val libraries: MutableList<RealmMyLibrary> = mRealm.where(RealmMyLibrary::class.java)
+            .`in`("id", getResourceIds(teamId, mRealm).toTypedArray())
+            .findAll()
+            .toMutableList()
+
+        adapterLibrary = settings?.let {
+            AdapterTeamResource(requireActivity(), libraries, mRealm, teamId, it)
+        }!!
         fragmentTeamResourceBinding.rvResource.layoutManager = GridLayoutManager(activity, 3)
         fragmentTeamResourceBinding.rvResource.adapter = adapterLibrary
         showNoData(fragmentTeamResourceBinding.tvNodata, adapterLibrary.itemCount, "teamResources")