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author | Allan Wang <me@allanwang.ca> | 2019-09-15 01:43:43 -0700 |
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committer | GitHub <noreply@github.com> | 2019-09-15 01:43:43 -0700 |
commit | bfba246d84aa6a22bc02837f9fcbd97780867d10 (patch) | |
tree | a4340255cb7bf74d0f56cc00d097ab06748faded /fastadapter-databinding/src | |
parent | b936230b609071cda99fb81436c29c45d916494a (diff) | |
parent | eafb4881cc6c33d7ae94b1f1e1b5b34fb18ebd03 (diff) | |
download | kau-bfba246d84aa6a22bc02837f9fcbd97780867d10.tar.gz kau-bfba246d84aa6a22bc02837f9fcbd97780867d10.tar.bz2 kau-bfba246d84aa6a22bc02837f9fcbd97780867d10.zip |
Merge pull request #228 from AllanWang/databinding
FastAdapter Databinding
Diffstat (limited to 'fastadapter-databinding/src')
-rw-r--r-- | fastadapter-databinding/src/main/AndroidManifest.xml | 1 | ||||
-rw-r--r-- | fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/BindingItem.kt | 123 |
2 files changed, 124 insertions, 0 deletions
diff --git a/fastadapter-databinding/src/main/AndroidManifest.xml b/fastadapter-databinding/src/main/AndroidManifest.xml new file mode 100644 index 0000000..acd1012 --- /dev/null +++ b/fastadapter-databinding/src/main/AndroidManifest.xml @@ -0,0 +1 @@ +<manifest package="ca.allanwang.kau.fastadapter.databinding" /> 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..b2b0f26 --- /dev/null +++ b/fastadapter-databinding/src/main/kotlin/ca/allanwang/fastadapter/databinding/BindingItem.kt @@ -0,0 +1,123 @@ +/* + * Copyright 2019 Allan Wang + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * 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 ca.allanwang.fastadapter.databinding + +import android.content.Context +import android.view.LayoutInflater +import android.view.View +import android.view.ViewGroup +import androidx.databinding.DataBindingUtil +import androidx.databinding.ViewDataBinding +import androidx.recyclerview.widget.RecyclerView +import ca.allanwang.kau.logging.KL +import com.mikepenz.fastadapter.FastAdapter +import com.mikepenz.fastadapter.GenericItem +import com.mikepenz.fastadapter.items.AbstractItem +import com.mikepenz.fastadapter.listeners.ClickEventHook + +interface VhModel { + fun vh(): GenericItem +} + +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 + ) + return binding.root + } + + fun getBinding(holder: ViewHolder): Binding? = + DataBindingUtil.getBinding<Binding>(holder.itemView) + + final override fun bindView(holder: ViewHolder, payloads: MutableList<Any>) { + super.bindView(holder, payloads) + val binding = getBinding(holder) ?: return + binding.bindView(holder, payloads) + binding.executePendingBindings() + } + + abstract fun Binding.bindView(holder: ViewHolder, payloads: MutableList<Any>) + + 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 { + KL.e { "Failed to recycle" } + return super.failedToRecycle(holder) + } + + override fun equals(other: Any?): Boolean { + if (this === other) return true + if (other !is BindingItem<*>) return false + return identifier == other.identifier && data == other.data + } + + override fun hashCode(): Int = data.hashCode() + + 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) +} |