我想在我的应用程序中显示Admob原生广告或Facebook原生广告，该应用程序基本上由网格和回收器视图组成。我尝试了很多教程，但到目前为止没有结果。我们将非常感谢任何帮助
适配器在Recycler View或Grid视图中显示视频图像，我想每5个位置显示一次本地广告
videoListAdapter.kt:
package org.aitech.ai.gui.video
import android.annotation.SuppressLint
import android.annotation.TargetApi
import android.content.Context
import android.os.Build
import android.text.TextUtils
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.TextView
import androidx.databinding.BindingAdapter
import androidx.databinding.DataBindingUtil
import androidx.databinding.ObservableBoolean
import androidx.databinding.ViewDataBinding
import androidx.lifecycle.Observer
import androidx.paging.PagedListAdapter
import androidx.recyclerview.widget.DiffUtil
import androidx.recyclerview.widget.GridLayoutManager
import kotlinx.coroutines.*
import org.aitech.libai.util.AndroidUtil
import org.aitech.medialibrary.Tools
import org.aitech.medialibrary.interfaces.Medialibrary
import org.aitech.medialibrary.interfaces.media.Folder
import org.aitech.medialibrary.interfaces.media.MediaWrapper
import org.aitech.medialibrary.interfaces.media.VideoGroup
import org.aitech.medialibrary.media.MediaLibraryItem
import org.aitech.resources.UPDATE_SEEN
import org.aitech.resources.UPDATE_SELECTION
import org.aitech.resources.UPDATE_THUMB
import org.aitech.resources.UPDATE_TIME
import org.aitech.tools.MultiSelectAdapter
import org.aitech.tools.MultiSelectHelper
import org.aitech.tools.safeOffer
import org.aitech.ai.BR
import org.aitech.ai.R
import org.aitech.ai.gui.helpers.*
import org.aitech.ai.util.generateResolutionClass
import org.aitech.ai.util.scope
import org.aitech.ai.viewmodels.mobile.VideoGroupingType
private const val TAG = "AI/VideoListAdapter"
class VideoListAdapter(private var isSeenMediaMarkerVisible: Boolean
) : PagedListAdapter<MediaLibraryItem, VideoListAdapter.ViewHolder>(VideoItemDiffCallback),
MultiSelectAdapter<MediaLibraryItem>, IEventsSource<VideoAction> by EventsSource() {
var isListMode = false
var dataType = VideoGroupingType.NONE
private var gridCardWidth = 0
val showFilename = ObservableBoolean(false)
val multiSelectHelper = MultiSelectHelper(this, UPDATE_SELECTION)
private val thumbObs = Observer<MediaWrapper> { media ->
val position = currentList?.snapshot()?.indexOf(media) ?: return@Observer
(getItem(position) as? MediaWrapper)?.run {
artworkURL = media.artworkURL
notifyItemChanged(position)
}
}
init {
Medialibrary.lastThumb.observeForever(thumbObs)
mAdItems = ArrayList()
}
fun release() {
Medialibrary.lastThumb.removeObserver(thumbObs)
}
val all: List<MediaLibraryItem>
get() = currentList?.snapshot() ?: emptyList()
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val inflater = parent.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
val binding = DataBindingUtil.inflate<ViewDataBinding>(inflater,
if (!isListMode) R.layout.video_list_card else R.layout.video_grid_card, parent, false)
if (!isListMode) {
val params = binding.root.layoutParams as GridLayoutManager.LayoutParams
params.width = gridCardWidth
params.height = params.width * 10 / 16
binding.root.layoutParams = params
}
return ViewHolder(binding)
}
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val item = getItem(position) ?: return
holder.binding.setVariable(BR.scaleType, ImageView.ScaleType.CENTER_CROP)
fillView(holder, item)
holder.binding.setVariable(BR.media, item)
holder.selectView(multiSelectHelper.isSelected(position))
}
override fun onBindViewHolder(holder: ViewHolder, position: Int, payloads: List<Any>) {
if (payloads.isEmpty())
onBindViewHolder(holder, position)
else {
val media = getItem(position)
for (data in payloads) {
when (data as Int) {
UPDATE_THUMB -> loadImage(holder.overlay, media)
UPDATE_TIME, UPDATE_SEEN -> fillView(holder, media as MediaWrapper)
UPDATE_SELECTION -> holder.selectView(multiSelectHelper.isSelected(position))
}
}
}
}
override fun onViewRecycled(holder: ViewHolder) {
holder.binding.setVariable(BR.cover, UiTools.getDefaultVideoDrawable(holder.itemView.context))
holder.job?.cancel()
holder.job = null
}
override fun getItem(position: Int) = if (isPositionValid(position)) super.getItem(position) else
null
private fun isPositionValid(position: Int) = position in 0 until itemCount
private fun fillView(holder: ViewHolder, item: MediaLibraryItem) {
when (item) {
is Folder -> holder.job = holder.itemView.scope.launch(start = CoroutineStart.UNDISPATCHED) {
val count = withContext(Dispatchers.IO) { item.mediaCount(Folder.TYPE_FOLDER_VIDEO) }
holder.binding.setVariable(BR.time,
holder.itemView.context.resources.getQuantityString(R.plurals.videos_quantity, count, count))
holder.title.text = item.title
if (!isListMode) holder.binding.setVariable(BR.resolution, null)
holder.binding.setVariable(BR.seen, 0L)
holder.binding.setVariable(BR.max, 0)
holder.job = null
}
is VideoGroup -> holder.itemView.scope.launch {
val count = item.mediaCount()
holder.binding.setVariable(BR.time, if (count < 2) null else
holder.itemView.context.resources.getQuantityString(R.plurals.videos_quantity, count, count))
holder.title.text = item.title
if (!isListMode) holder.binding.setVariable(BR.resolution, null)
holder.binding.setVariable(BR.seen, 0L)
holder.binding.setVariable(BR.max, 0)
}
is MediaWrapper -> {
holder.title.text = if (showFilename.get()) item.fileName else item.title
val text: String?
val resolution = generateResolutionClass(item.width, item.height)
var max = 0
var progress = 0
var seen = 0L
text = if (item.type == MediaWrapper.TYPE_GROUP) {
item.description
} else {
seen = if (isSeenMediaMarkerVisible) item.seen else 0L
/* Time / Duration */
if (item.length > 0) {
val lastTime = item.displayTime
if (lastTime > 0) {
max = (item.length / 1000).toInt()
progress = (lastTime / 1000).toInt()
}
if (isListMode && resolution !== null) {
"${Tools.millisToText(item.length)} | $resolution"
} else Tools.millisToText(item.length)
} else null
}
holder.binding.setVariable(BR.time, text)
holder.binding.setVariable(BR.max, max)
holder.binding.setVariable(BR.progress, progress)
holder.binding.setVariable(BR.seen, seen)
if (!isListMode) holder.binding.setVariable(BR.resolution, resolution)
}
}
}
fun setGridCardWidth(gridCardWidth: Int) {
this.gridCardWidth = gridCardWidth
}
override fun getItemId(position: Int) = 0L
@TargetApi(Build.VERSION_CODES.M)
inner class ViewHolder(binding: ViewDataBinding) : SelectorViewHolder<ViewDataBinding>(binding) {
val overlay: ImageView = itemView.findViewById(R.id.ml_item_overlay)
val title : TextView = itemView.findViewById(R.id.ml_item_title)
var job: Job? = null
init {
binding.setVariable(BR.holder, this)
binding.setVariable(BR.cover, UiTools.getDefaultVideoDrawable(itemView.context))
if (AndroidUtil.isMarshMallowOrLater)
itemView.setOnContextClickListener { v ->
onMoreClick(v)
true
}
}
fun onImageClick(v: View) {
val position = layoutPosition
if (isPositionValid(position)) getItem(position)?.let {
eventsChannel.safeOffer(VideoImageClick(layoutPosition, it)) }
}
fun onClick(v: View) {
val position = layoutPosition
if (isPositionValid(position)) getItem(position)?.let {
eventsChannel.safeOffer(VideoClick(layoutPosition, it)) }
}
fun onMoreClick(v: View) {
val position = layoutPosition
if (isPositionValid(position)) getItem(position)?.let {
eventsChannel.safeOffer(VideoCtxClick(layoutPosition, it)) }
}
fun onLongClick(v: View): Boolean {
val position = layoutPosition
return isPositionValid(position) && getItem(position)?.let {
eventsChannel.safeOffer(VideoLongClick(layoutPosition, it)) } == true
}
override fun selectView(selected: Boolean) {
overlay.setImageResource(if (selected) R.drawable.ic_action_mode_select_1610 else if
(isListMode) 0 else R.drawable.black_gradient)
if (isListMode) overlay.visibility = if (selected) View.VISIBLE else View.GONE
super.selectView(selected)
}
override fun isSelected() = multiSelectHelper.isSelected(layoutPosition)
}
private object VideoItemDiffCallback : DiffUtil.ItemCallback<MediaLibraryItem>() {
override fun areItemsTheSame(oldItem: MediaLibraryItem, newItem: MediaLibraryItem) = when {
oldItem is MediaWrapper && newItem is MediaWrapper -> {
oldItem === newItem || oldItem.type == newItem.type && oldItem.equals(newItem)
}
else -> oldItem === newItem || oldItem.itemType == newItem.itemType &&
oldItem.equals(newItem)
}
@SuppressLint("DiffUtilEquals")
override fun areContentsTheSame(oldItem: MediaLibraryItem, newItem: MediaLibraryItem): Boolean {
return if (oldItem is MediaWrapper && newItem is MediaWrapper) {
oldItem === newItem || (oldItem.displayTime == newItem.displayTime
&& TextUtils.equals(oldItem.artworkMrl, newItem.artworkMrl)
&& oldItem.seen == newItem.seen)
} //else if (oldItem is FolderImpl && newItem is FolderImpl) return oldItem === newItem ||
(oldItem.title == newItem.title && oldItem.artworkMrl == newItem.artworkMrl)
else oldItem.itemType == MediaLibraryItem.TYPE_FOLDER || oldItem.itemType ==
MediaLibraryItem.TYPE_VIDEO_GROUP
}
override fun getChangePayload(oldItem: MediaLibraryItem, newItem: MediaLibraryItem) = when {
(oldItem is MediaWrapper && newItem is MediaWrapper) && oldItem.displayTime !=
newItem.displayTime -> UPDATE_TIME
!TextUtils.equals(oldItem.artworkMrl, newItem.artworkMrl) -> UPDATE_THUMB
else -> UPDATE_SEEN
}
}
fun setSeenMediaMarkerVisible(seenMediaMarkerVisible: Boolean) {
isSeenMediaMarkerVisible = seenMediaMarkerVisible
}
}
@BindingAdapter("time", "resolution")
fun setLayoutHeight(view: View, time: String, resolution: String) {
val layoutParams = view.layoutParams
layoutParams.height = if (TextUtils.isEmpty(time) && TextUtils.isEmpty(resolution))
ViewGroup.LayoutParams.MATCH_PARENT
else
ViewGroup.LayoutParams.WRAP_CONTENT
view.layoutParams = layoutParams
}
阅读以下文档：
Admobhttps://developers.google.com/admob/android/native/start
脸书https://developers.facebook.com/docs/audience-network/guides/ad-formats/native/android