Mobile Kotlin units

This is a Kotlin MultiPlatform library that provides RecyclerView/UITableView/UICollectionView filling from common code.

Table of Contents

• Features
• Requirements
• Installation
• Usage
• Samples
• Set Up Locally
• Contributing
• License

Features

• Control UI lists from common code - content for RecyclerView/UITableView/UICollectionView creating from common kotlin code.

Requirements

• Gradle version 6.8+
• Android API 16+
• iOS version 11.0+

Installation

root build.gradle

buildscript {
    repositories {
        mavenCentral()
    }

    dependencies {
        classpath("dev.icerock.moko:units-generator:0.6.0")
    }
}


allprojects {
    repositories {
       mavenCentral()
    }
}

project build.gradle

apply plugin: "dev.icerock.mobile.multiplatform-units"

dependencies {
    commonMainApi("dev.icerock.moko:units:0.6.0")
    commonMainImplementation("dev.icerock.moko:units-basic:0.6.0")

    commonTestImplementation("dev.icerock.moko:units-test:0.6.0")
}

multiplatformUnits {
    classesPackage = "org.example.library.units"
    dataBindingPackage = "org.example.library"
    layoutsSourceSet = "androidMain"
}

On iOS, in addition to the Kotlin library add Pod in the Podfile.

pod 'MultiPlatformLibraryUnits', :git => 'https://github.com/icerockdev/moko-units.git', :tag => 'release/0.6.0'

MultiPlatformLibraryUnits CocoaPod requires that the framework compiled from Kotlin be named MultiPlatformLibrary and be connected as a CocoaPod MultiPlatformLibrary. Here's an example. To simplify integration with MultiPlatformFramework you can use mobile-multiplatform-plugin.
MultiPlatformLibraryUnits CocoaPod contains an swift additions for UnitDataSources of UITableView/UICollectionView.

Usage

common:

interface UnitFactory {
    fun createHeader(text: String): TableUnitItem
    fun createProfileTile(profileId: Long, avatarUrl: String, username: String): TableUnitItem
}

class ViewModel(unitFactory: UnitFactory) {
    val items = listOf(
        unitFactory.createHeader("Programmers"),
        unitFactory.createProfileTile(1, "url", "Mikhailov"),
        unitFactory.createProfileTile(2, "url", "Babenko"),
        unitFactory.createProfileTile(3, "url", "Tchernov"),
        unitFactory.createHeader("Designers"),
        unitFactory.createProfileTile(4, "url", "Eugeny")
    )
}

android:

<androidx.recyclerview.widget.RecyclerView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:bindValue="@{viewModel.items}"
            app:adapter="@{`dev.icerock.moko.units.adapter.UnitsRecyclerViewAdapter`}"
            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"/>

object UnitFactoryImpl: UnitFactory {
    fun createHeader(text: String): TableUnitItem {
        return LayoutHeader()
            .setText(text)
            .setItemId(text.hashCode())
    }
    
    fun createProfileTile(profileId: Long, avatarUrl: String, username: String): TableUnitItem {
        return LayoutProfileTile()
            .setAvatarUrl(avatarUrl)
            .setUserName(username)
            .setItemId(profileId)
    }
}

mBinding.viewModel = ViewModel(UnitFactoryImpl)

iOS:

class UnitFactoryImpl: NSObject, UnitFactory {

  func createHeader(text: String) -> TableUnitItem {
    let data = HeaderTableViewCell.CellModel(text: text)
    return UITableViewCellUnit<HeaderTableViewCell>(
      data: data,
      itemId: text.hashCode(),
      configurator: nil)
  }
  
  func createProfileTile(profileId: Long, avatarUrl: String, username: String) -> TableUnitItem {
    let data = ProfileTableViewCell.CellModel(avatarUrl: avatarUrl, username: username)
    return UITableViewCellUnit<ProfileTableViewCell>(
      data: data,
      itemId: profileId,
      configurator: nil)
  }
}

let viewModel = ViewModel(unitFactory: UnitFactoryImpl())
let tableDataSource = TableUnitsSourceKt.default(for: tableView)
tableDataSource.units = viewModel.items
tableView.reloadTable()

Samples

Please see more examples in the sample directory.

Set Up Locally

• The units directory contains the units library;
• The gradle-plugin directory contains a gradle plugin with a MR class generator;
• The sample directory contains sample apps for Android and iOS; plus the mpp-library connected to the apps.

Contributing

All development (both new features and bug fixes) is performed in the develop branch. This way master always contains the sources of the most recently released version. Please send PRs with bug fixes to the develop branch. Documentation fixes in the markdown files are an exception to this rule. They are updated directly in master.

The develop branch is pushed to master on release.

For more details on contributing please see the contributing guide.

License

Copyright 2019 IceRock MAG Inc.

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.