RecyclerView Presenter

RecyclerView Adapter Library with different models and different layouts as convenient as possible.

Description

Convenience library to handle different view types with different presenters in a single RecyclerView.

Programming language: Kotlin

License: Apache License 2.0

Tags: Kotlin     RecyclerView     Android     RecyclerView Adapter     Android-library     MVVM     Paging    

Latest version: v4.8.0

README

RecyclerView Presenter

Convenience library to handle different view types with different presenters in a single RecyclerView.

How to install

repositories {
    maven {
    url "https://jitpack.io"
    }
}

dependencies {
    implementation 'com.github.kibotu:RecyclerViewPresenter:-SNAPSHOT'
}

How to use

1. Create a presenter, e.g. [PhotoPresenter](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PhotoPresenter.kt#L14-L24) or [LabelPresenter](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/LabelPresenter.kt#L12-L19)

class LabelPresenter : Presenter<String>() {

    override val layout = R.layout.label_presenter_item

    override fun bindViewHolder(viewHolder: RecyclerView.ViewHolder, item: PresenterModel<String>, position: Int, payloads: MutableList<Any>?, adapter: Adapter) = with(viewHolder.itemView) {
    label.text = item.model
    }
}

1. [Add the PresenterAdapter to your RecyclerView](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L23-L29)

val adapter = PresenterAdapter()
list.adapter = adapter

1. [Register Presenter](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L24-L26)

adapter.registerPresenter(PhotoPresenter())
adapter.registerPresenter(LabelPresenter())
adapter.registerPresenter(NumberPresenter())

1. [Submit list of models with presenter matching layout](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L39-L51) to the adapter, e.g.:

val items = ArrayList<PresenterModel<String>>()

for (i in 0..99) {
    items.add(PresenterModel(createRandomImageUrl(), R.layout.photo_presenter_item))
    items.add(PresenterModel(createRandomImageUrl(), R.layout.label_presenter_item))
    items.add(PresenterModel(createRandomImageUrl(), R.layout.number_presenter_item))
}

adapter.submitList(items)

1. Add click listener [to adapter](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L31-L33)

adapter.onItemClick { item, view, position ->
    snack("$position. ${item.model}")
}

4.1 or pass [to your RecyclerViewModel](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L43-L45)

val item = PresenterModel(createRandomImageUrl()) {
    snack("$position. ${item.model}")
}

[Updating item](app/src/main/java/net/kibotu/android/recyclerviewpresenter/app/kotlin/PresenterActivity.kt#L55)

adapter.submitList(newItems)

Notes

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Let me know what you think: [email protected]

Contributions welcome!

License

Copyright 2019 Jan Rabe

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.