RecyclerViewPresenter

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RecyclerViewPresenter

(★ 85)

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

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- FUNDING.yml
- .gitignore
- build.gradle
- proguard-rules.pro
- - gradle-wrapper.jar
  - gradle-wrapper.properties
- .gitignore
- build.gradle
- proguard-rules.pro
.gitignore
.travis.yml
build.gradle
dependencies.gradle
gradle.properties
gradlew
gradlew.bat
jitpack.yml
LICENSE
README.md
screenshot.png
settings.gradle
utils.gradle

// repository documentation

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# RecyclerView Presenter [![](https://jitpack.io/v/kibotu/RecyclerViewPresenter.svg)](https://jitpack.io/#kibotu/RecyclerViewPresenter) [![](https://jitpack.io/v/kibotu/RecyclerViewPresenter/month.svg)](https://jitpack.io/#kibotu/RecyclerViewPresenter) [![Hits-of-Code](https://hitsofcode.com/github/kibotu/RecyclerViewPresenter)](https://hitsofcode.com/view/github/kibotu/RecyclerViewPresenter) [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-RecyclerViewPresenter-green.svg?style=true)](https://android-arsenal.com/details/1/3593) [![appetize.io](https://img.shields.io/badge/appetize.io-Live%20Demo-blue.svg)](https://appetize.io/app/twkuv0xydcy5h8whmkcmx81kur) [![Javadoc](https://img.shields.io/badge/javadoc-SNAPSHOT-green.svg)](https://jitpack.io/com/github/kibotu/RecyclerViewPresenter/master-SNAPSHOT/javadoc/index.html) [![Build Status](https://app.travis-ci.com/kibotu/RecyclerViewPresenter.svg?branch=master)](https://app.travis-ci.com/kibotu/RecyclerViewPresenter)  [![API](https://img.shields.io/badge/API-15%2B-brightgreen.svg?style=flat)](https://android-arsenal.com/api?level=15) [![Gradle Version](https://img.shields.io/badge/gradle-7.2-green.svg)](https://docs.gradle.org/current/release-notes)  [![Kotlin](https://img.shields.io/badge/kotlin-1.5.31-green.svg)](https://kotlinlang.org/) [![GitHub license](https://img.shields.io/badge/license-Apache%202-blue.svg)](https://raw.githubusercontent.com/kibotu/RecyclerViewPresenter/master/LICENSE) [![androidx](https://img.shields.io/badge/androidx-brightgreen.svg)](https://developer.android.com/topic/libraries/support-library/refactor)

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

[![Screenshot](https://raw.githubusercontent.com/kibotu/RecyclerViewPresenter/master/screenshot.png)](https://raw.githubusercontent.com/kibotu/RecyclerViewPresenter/master/screenshot.png)
  
### How to install

```groovy
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/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PhotoPresenter.kt#L21-L51) or [LabelPresenter](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/LabelPresenter.kt#L14-L23)

```kotlin
class LabelPresenter : Presenter<String, LabelPresenterItemBinding>(
    layout = R.layout.label_presenter_item,
    viewBindingAccessor = LabelPresenterItemBinding::bind
) {

override fun bindViewHolder(
        viewBinding: LabelPresenterItemBinding,
        viewHolder: RecyclerView.ViewHolder,
        item: PresenterViewModel<String>,
        payloads: MutableList<Any>?
    ) = with(viewBinding) {
        Logger.v( "bindViewHolder ${viewHolder.adapterPosition} $item payload=$payloads" )
        label.text = "${item.model}"
    }
}
```

2. [Add the PresenterAdapter to your RecyclerView](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L26)

```kotlin
val adapter = PresenterAdapter()
list.adapter = adapter
```

3. [Register Presenter](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L33-L35)

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

4. [Submit list of models with presenter matching layout](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L50-L70) to the adapter, e.g.:

```kotlin
val items = mutableListOf<PresenterViewModel<*>>()

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)
```

5.1 Add click listener [to adapter](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L37-L40)

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

5.2 or pass [to your RecyclerViewModel](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L65-L67)

```kotlin
val item = PresenterViewModel(createRandomImageUrl(), R.layout.photo_presenter_item) { item, view, position -> 
	snack("$position. $item")
})
```

#### [Updating item](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/kotlin/PresenterActivity.kt#L56)

```kotlin
adapter.submitList(newItems)
```

#### [Circular](app/src/main/kotlin/net/kibotu/android/recyclerviewpresenter/app/screens/circular/CircularPresenterActivity.kt#L37)

```kotlin
adapter.isCircular = true

// Note: use adapter scroll methods for correct scroll position when using circular
adapter.smoothScrollToPosition(0)
adapter.scrollToPosition(0)
```

### Notes

Follow me on Twitter: [![Twitter Follow](https://img.shields.io/twitter/follow/wolkenschauer.svg?style=social)](https://twitter.com/wolkenschauer)

Let me know what you think: [jan.rabe@kibotu.net](mailto:jan.rabe@kibotu.net)

Contributions welcome!

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.
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