SSExpandableRecyclerView
Expandable Recyclerview make it easy to integrate nested recyclerview
Features
- Simple and easy to use ( no complex adapter required )
- Just extend BaseRecyclerAdapter and good to go.
- Get onClick event for parent recycler item as well child item.
- Customize where you want to collapse/expand effect.
🎬
Preview
| Expandable RecyclerView | Expandable RecyclerView | Expandable RecyclerView |
|---|---|---|
 |
 |
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Installation
- Extend BaseRecyclerAdapter in recycler adapter and implement below methods.
class ListAdapter : BaseRecyclerAdapter<ListDataModel, ChildDataModel>() {
// Pass parent and child model in BaseRecyclerAdapter
override fun getLayoutIdForType(): Int = R.layout.item_parent // Provide parent recycler item id
override fun getLayoutIdForChild(): Int = R.layout.item_child // Provide child recycler item id
// Click event fot parent recycler item
override fun onParentItemClick(triple: Triple<Int, Any, View>, viewDataBinding: ViewDataBinding) {
val data = triple.second as ListDataModel // Here you can get parent item data for clicked item
val position = triple.first // Get position of clicked item
val view = triple.third // Get view of clicked item
when (view.id) {
R.id.text_movie_year -> {
// Call this function where you want to expand collapse childView
expandCollapse(triple.first, viewDataBinding)
}
}
}
// Click event for child rectycler item
override fun onChildItemClicked(triple: Triple<Int, Any, View>, parentIndex: Int) {
val data = triple.second as ChildDataModel // Here you can get child item data for clicked item
val position = triple.first // Get position of clicked item
val view = triple.third // Get view of clicked item
when (view.id) {
R.id.img_download_movie -> {
// Here you can perform your action
}
}
}
}
- Create variables in parent recycler item as par below and bind it as per requirement.
<data>
<variable
name="data" // Variable name should be same
type="com.expandable.recyclerview.model.ListDataModel" />
<variable
name="clickHandler" // Variable name should be same
type="android.view.View.OnClickListener" />
<variable
name="adapter" // Variable name should be same and give type BaseChildRecyclerAdapter
type="com.expandable.recyclerview.base.BaseChildRecyclerAdapter" />
<variable
name="isVisible" // Variable name should be same
type="Boolean" />
<import type="android.view.View" />
</data>
- SetUp child recyclerview with adapter and visiblty like this
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/childRecycler"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_8sdp"
android:visibility="@{isVisible ? View.VISIBLE : View.GONE }" // Important line
app:setAdapter="@{adapter}" //Important line
.... />
- Create variables in child recycler item as par below and bind it as per requirement.
<data>
<variable
name="data" // Variable name should be same
type="com.expandable.recyclerview.model.ChildDataModel" />
<variable
name="clickHandler" // Variable name should be same
type="android.view.View.OnClickListener" />
<import type="android.view.View" />
</data>
- Assign click handler where you want to recive click event
<TextView
android:id="@+id/movieTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="@{clickHandler::onClick}" /> // Important line
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How to Contribute
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Bugs and Feedback
For bugs, feature requests, and discussion please use GitHub Issues.
License
Copyright 2021 Simform Solutions
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.
17 Aug 18, 2022
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