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[AND-3] Create ThreadListItemViewHolderFactory for ViewHolder customi…
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PetarVelikov
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Nov 28, 2024
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128 changes: 128 additions & 0 deletions
128
...getstream/chat/android/ui/feature/threads/list/adapter/ThreadListItemViewHolderFactory.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| /* | ||
| * Copyright (c) 2014-2024 Stream.io Inc. All rights reserved. | ||
| * | ||
| * Licensed under the Stream License; | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://github.com/GetStream/stream-chat-android/blob/main/LICENSE | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package io.getstream.chat.android.ui.feature.threads.list.adapter | ||
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| import android.view.ViewGroup | ||
| import io.getstream.chat.android.ui.feature.threads.list.ThreadListView | ||
| import io.getstream.chat.android.ui.feature.threads.list.ThreadListViewStyle | ||
| import io.getstream.chat.android.ui.feature.threads.list.adapter.viewholder.BaseThreadListItemViewHolder | ||
| import io.getstream.chat.android.ui.feature.threads.list.adapter.viewholder.internal.ThreadItemViewHolder | ||
| import io.getstream.chat.android.ui.feature.threads.list.adapter.viewholder.internal.ThreadListLoadingMoreViewHolder | ||
|
|
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| /** | ||
| * Factory responsible for creating ViewHolder instances for the RecyclerView used in the | ||
| * [io.getstream.chat.android.ui.feature.threads.list.ThreadListView]. | ||
| */ | ||
| public open class ThreadListItemViewHolderFactory { | ||
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| /** | ||
| * The [ThreadListViewStyle] for styling the viewHolders. | ||
| */ | ||
| protected lateinit var style: ThreadListViewStyle | ||
| private set | ||
|
|
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| /** | ||
| * The listener for clicks on the thread items. | ||
| */ | ||
| protected var clickListener: ThreadListView.ThreadClickListener? = null | ||
| private set | ||
|
|
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| /** | ||
| * Returns a view type value based on the type of the given [item]. | ||
| * The view type returned here will be used as a parameter in [createViewHolder]. | ||
| * | ||
| * For built-in view types, see [ThreadListItemViewType] and its constants. | ||
| * | ||
| * @param item The [ThreadListItem] to check the type of. | ||
| */ | ||
| public open fun getItemViewType(item: ThreadListItem): Int { | ||
| return when (item) { | ||
| is ThreadListItem.ThreadItem -> ThreadListItemViewType.ITEM_THREAD | ||
| is ThreadListItem.LoadingMoreItem -> ThreadListItemViewType.ITEM_LOADING_MORE | ||
| } | ||
| } | ||
|
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| /** | ||
| * Returns a view type value based on the type of the given [viewHolder]. | ||
| * | ||
| * For built-in view types, see [ThreadListItemViewType] and its constants. | ||
| * | ||
| * @param viewHolder The [BaseThreadListItemViewHolder] to check the type of. | ||
| */ | ||
| public open fun getItemViewType(viewHolder: BaseThreadListItemViewHolder<out ThreadListItem>): Int { | ||
| return when (viewHolder) { | ||
| is ThreadItemViewHolder -> ThreadListItemViewType.ITEM_THREAD | ||
| is ThreadListLoadingMoreViewHolder -> ThreadListItemViewType.ITEM_LOADING_MORE | ||
| else -> throw IllegalArgumentException("Unhandled ThreadList view holder: $viewHolder") | ||
| } | ||
| } | ||
|
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| /** | ||
| * Creates a new ViewHolder based on the provided [viewType] to be used in the Thread List. | ||
| * The [viewType] parameter is determined by [getItemViewType]. | ||
| * | ||
| * @param parentView The parent of the view. | ||
| * @param viewType The type of the item for which the viewHolder is created. | ||
| */ | ||
| public open fun createViewHolder( | ||
| parentView: ViewGroup, | ||
| viewType: Int, | ||
| ): BaseThreadListItemViewHolder<out ThreadListItem> { | ||
| return when (viewType) { | ||
| ThreadListItemViewType.ITEM_THREAD -> createThreadItemViewHolder(parentView) | ||
| ThreadListItemViewType.ITEM_LOADING_MORE -> createLoadingMoreViewHolder(parentView) | ||
| else -> throw IllegalArgumentException("Unhandled ThreadList view type: $viewType") | ||
| } | ||
| } | ||
|
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| /** | ||
| * Creates the ViewHolder for the [ThreadListItemViewType.ITEM_THREAD] ([ThreadListItem.ThreadItem]) type. | ||
| * | ||
| * @param parentView The parent of the view. | ||
| */ | ||
| protected open fun createThreadItemViewHolder( | ||
| parentView: ViewGroup, | ||
| ): BaseThreadListItemViewHolder<ThreadListItem.ThreadItem> { | ||
| return ThreadItemViewHolder(parentView, style, clickListener) | ||
| } | ||
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| /** | ||
| * Creates the ViewHolder for the [ThreadListItemViewType.ITEM_LOADING_MORE] ([ThreadListItem.LoadingMoreItem]) | ||
| * type. | ||
| * | ||
| * @param parentView The parent of the view. | ||
| */ | ||
| protected open fun createLoadingMoreViewHolder( | ||
| parentView: ViewGroup, | ||
| ): BaseThreadListItemViewHolder<ThreadListItem.LoadingMoreItem> { | ||
| return ThreadListLoadingMoreViewHolder(parentView) | ||
| } | ||
|
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| /** | ||
| * Sets the [ThreadListViewStyle] to be used by the created ViewHolders. | ||
| */ | ||
| internal fun setStyle(style: ThreadListViewStyle) { | ||
| this.style = style | ||
| } | ||
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| /** | ||
| * Sets the [ThreadListView.ThreadClickListener] for clicks on the thread items. | ||
| */ | ||
| internal fun setThreadClickListener(clickListener: ThreadListView.ThreadClickListener?) { | ||
| this.clickListener = clickListener | ||
| } | ||
| } |
33 changes: 33 additions & 0 deletions
33
...otlin/io/getstream/chat/android/ui/feature/threads/list/adapter/ThreadListItemViewType.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Copyright (c) 2014-2024 Stream.io Inc. All rights reserved. | ||
| * | ||
| * Licensed under the Stream License; | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://github.com/GetStream/stream-chat-android/blob/main/LICENSE | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package io.getstream.chat.android.ui.feature.threads.list.adapter | ||
|
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| /** | ||
| * Defines the possible types of a Thread List item. | ||
| */ | ||
| public object ThreadListItemViewType { | ||
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| /** | ||
| * Represents an item of type 'thread'. | ||
| */ | ||
| public const val ITEM_THREAD: Int = 0 | ||
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| /** | ||
| * Represent a loading more indicator item. | ||
| */ | ||
| public const val ITEM_LOADING_MORE: Int = 1 | ||
| } |
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