diff options
Diffstat (limited to 'fastadapter-databinding/src/main/kotlin/ca/allanwang')
2 files changed, 167 insertions, 0 deletions
diff --git a/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/BindingItem.kt b/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/BindingItem.kt new file mode 100644 index 0000000..e52838b --- /dev/null +++ b/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/BindingItem.kt @@ -0,0 +1,122 @@ +package ca.allanwang.fastadapter.databinding + + +import android.content.Context +import android.view.LayoutInflater +import android.view.View +import android.view.ViewGroup +import android.widget.ImageView +import android.widget.TextView +import androidx.databinding.DataBindingUtil +import androidx.databinding.ViewDataBinding +import androidx.recyclerview.widget.RecyclerView +import ca.allanwang.gitdroid.logger.L +import ca.allanwang.gitdroid.views.BR +import com.bumptech.glide.Glide +import com.mikepenz.fastadapter.FastAdapter +import com.mikepenz.fastadapter.items.AbstractItem +import com.mikepenz.fastadapter.listeners.ClickEventHook + +typealias GenericBindingItem = BindingItem<*> + +abstract class BindingItem<Binding : ViewDataBinding>(open val data: Any?) : AbstractItem<BindingItem.ViewHolder>(), + BindingLayout<Binding> { + + override val type: Int + get() = layoutRes + + override fun createView(ctx: Context, parent: ViewGroup?): View { + val binding: ViewDataBinding = DataBindingUtil.inflate( + LayoutInflater.from(ctx), + layoutRes, parent, + false, + null + ) + return binding.root + } + + final override fun bindView(holder: ViewHolder, payloads: MutableList<Any>) { + super.bindView(holder, payloads) + val binding = DataBindingUtil.getBinding<Binding>(holder.itemView) ?: return + binding.bindView(holder, payloads) + binding.executePendingBindings() + } + + open fun Binding.bindView(holder: ViewHolder, payloads: MutableList<Any>) { + setVariable(BR.model, data) + } + + final override fun unbindView(holder: ViewHolder) { + super.unbindView(holder) + val binding = DataBindingUtil.getBinding<Binding>(holder.itemView) ?: return + binding.unbindView(holder) + binding.unbind() + } + + open fun Binding.unbindView(holder: ViewHolder) {} + + final override fun getViewHolder(v: View): ViewHolder = ViewHolder(v, layoutRes) + + override fun failedToRecycle(holder: ViewHolder): Boolean { + L.e { "Failed to recycle" } + return super.failedToRecycle(holder) + } + + companion object { + @JvmStatic + protected fun unbindGlide(vararg imageView: ImageView) { + if (imageView.isEmpty()) { + return + } + val manager = Glide.with(imageView.first().context) + imageView.forEach { manager.clear(it) } + } + + @JvmStatic + protected fun unbind(vararg imageView: ImageView) { + imageView.forEach { it.setImageDrawable(null) } + } + + @JvmStatic + protected fun unbind(vararg textView: TextView) { + textView.forEach { it.text = null } + } + } + + class ViewHolder(itemView: View, internal val layoutRes: Int) : RecyclerView.ViewHolder(itemView) + +} + +interface BindingLayout<Binding : ViewDataBinding> { + val layoutRes: Int +} + + +abstract class BindingClickEventHook<Binding : ViewDataBinding, Item : BindingItem<Binding>>(val identifier: BindingLayout<Binding>) : + ClickEventHook<Item>() { + + private fun RecyclerView.ViewHolder.binding(): Binding? { + val holder = this as? BindingItem.ViewHolder ?: return null + if (holder.layoutRes != identifier.layoutRes) { + return null + } + return DataBindingUtil.getBinding(itemView) + } + + final override fun onBind(viewHolder: RecyclerView.ViewHolder): View? = + viewHolder.binding()?.onBind(viewHolder) ?: super.onBind(viewHolder) + + open fun Binding.onBind(viewHolder: RecyclerView.ViewHolder): View? = super.onBind(viewHolder) + + final override fun onBindMany(viewHolder: RecyclerView.ViewHolder): List<View>? = + viewHolder.binding()?.onBindMany(viewHolder) ?: super.onBindMany(viewHolder) + + open fun Binding.onBindMany(viewHolder: RecyclerView.ViewHolder): List<View>? = super.onBindMany(viewHolder) + + final override fun onClick(v: View, position: Int, fastAdapter: FastAdapter<Item>, item: Item) { + val binding: Binding = DataBindingUtil.findBinding(v) ?: return + binding.onClick(v, position, fastAdapter, item) + } + + abstract fun Binding.onClick(v: View, position: Int, fastAdapter: FastAdapter<Item>, item: Item) +}
\ No newline at end of file diff --git a/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/FastBindingAdapter.kt b/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/FastBindingAdapter.kt new file mode 100644 index 0000000..2270b5d --- /dev/null +++ b/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/FastBindingAdapter.kt @@ -0,0 +1,45 @@ +package ca.allanwang.fastadapter.databinding + +import com.mikepenz.fastadapter.FastAdapter +import com.mikepenz.fastadapter.IAdapter +import com.mikepenz.fastadapter.IItemAdapter +import com.mikepenz.fastadapter.adapters.ItemAdapter +import com.mikepenz.fastadapter.diff.FastAdapterDiffUtil + +class FastBindingAdapter private constructor(private val adapter: ItemAdapter<GenericBindingItem>) : + FastAdapter<GenericBindingItem>(), + IItemAdapter<GenericBindingItem, GenericBindingItem> by adapter { + + constructor() : this(ItemAdapter()) + + var lastClearTime: Long = -1 + + init { + super.addAdapter(0, adapter) + } + + override fun clear(): FastBindingAdapter { + if (itemCount != 0) { + adapter.clear() + lastClearTime = System.currentTimeMillis() + } + return this + } + + override fun <A : IAdapter<GenericBindingItem>> addAdapter( + index: Int, + adapter: A + ): FastAdapter<GenericBindingItem> { + throw IllegalArgumentException("FastBindingAdapter only allows one adapter") + } + + fun setWithDiff(items: List<GenericBindingItem>, detectMoves: Boolean = true) { + FastAdapterDiffUtil.set( + adapter, + items, + null, + detectMoves + ) + } + +}
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