Gencycler

Gencycler is a compile time annotation processor, that writes the RecyclerView adapter code for you.

The adapter gives you a thread-safe way to access the elements just like a list. It does that by using extension functions like add, in(contains), remove, and much more(Look below to see full function list) And it's written in kotlin <3.

Install

  //if your'e using java you don't need to add the plugin
apply plugin: 'kotlin-kapt'
 repositories {

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

}

dependencies {

compile 'com.github.gilgoldzweig.Gencycler:annotations:version'

kapt 'com.github.gilgoldzweig.Gencycler:compiler:version' // if your'e using java replace 'kapt' with 'annotationProcessor'

}
 

Usage

In order to use it, your data types must implement an empty interface, GencyclerDataType The class lets the adapter identify between multiple view types and determine which is needed to be inflated.

In order for the adapter to decide when each type is inflated and at what time you pass a list of the interface.

I'm using 'data class' but it could be anything that implements the interface.

data class PersonType(val name: String = "Rick Sanchez", val age: Int = 1000, val homeLocation: String = "Hahahahah"): GencyclerDataType 

And another class just to have better example

data class AdType(val adId: String, val adType: String): GencyclerDataType 

Now to the actual adapter

@GencyclerAdapter(

 GencyclerViewHolder(R.layout.person_layout, //the layout res you want to be created

  GencyclerViewField("name", //fieldName

R.id.type_one_one_text, // view's id

  AppCompatTextView::class), // view's type

GencyclerViewField("age",

  R.id.age_text,

  AppCompatTextView::class), //same as above

  GencyclerViewField("homeLocation",

  R.id.home_location_text,

  AppCompatImageView::class), //same as above

classType = PersonType::class), //the class you want to use when the holder is binded

//another view holder
  GencyclerViewHolder(R.layout.ad_layout,

GencyclerViewField("adTitle",

  R.id.ad_title_text,

  AppCompatTextView::class),

  GencyclerViewField("adPreview",

  R.id.ad_preview_image,

  AppCompatImageView::class),

classType = AdType::class),

customName = ""

  // You can define a custom name for your generated adapter, if nothing is provided the name would be the same as your class name with a "Gencycler" prefix, example: "GencyclerYourAdapter")  class YourAdapter(val context: Context, val elements: ArrayList<GencyclerDataType>) ` 

Build your app and the adapter will be generated to use it just extend it

class YourAdapter(context: Context, elements: ArrayList<GencyclerDataType>): GencyclerYourAdapter(context, elements) {
  //for each of your view types you'll need to implement the customized onBind

 the method is an extension function of the view type you provided

 all of your views are there

  override fun PersonTypeViewHolder

.onBindPersonTypeViewHolder(position: Int, element: ProfileType) {

// use it however you like,

it could be simple as below or with a complex business logic. Your adapter your rules.

name.text = element.name

  age.text = element.age

  homeLocation = element.homeLocation

//You're also provided with an onClick and OnLongClick functions for easier usage.

 onClick {

  
}

 onLongClick {

}

 
}

  override fun AdTypeViewHolder

.onBindAdTypeViewHolder(position: Int, element: AdType) {

//same as above

 
}
  
}
 

When you extend the adapter you receive the following open functions.

val customRecyclerAdapter = GencyclerYourAdapter(context, ArrayList())

customRecyclerAdapter - adType //removing item and notifying the adapter if you are on uiThread

customRecyclerAdapter - 2 //removing item and notifying the adapter if you are on uiThread

customRecyclerAdapter + adType //adding item and notifying the adapter if you are on uiThread

customRecyclerAdapter.add(personType, 5)

customRecyclerAdapter[personType] //getPosition by type

customRecyclerAdapter[12] //getType by position

customRecyclerAdapter - 1..4 //removing position range and notifying the adapter if you are on uiThread

customRecyclerAdapter - listOf(adType, personType) //removing list of types and notifying the adapter if you are on uiThread

customRecyclerAdapter.setItem(5, newPersonType) // replaces the type in position 5 to newPersonType

customRecyclerAdapter.clear() // removes all the items and notifying the adapter if you are on uiThread

customRecyclerAdapter.count() // returns the list count

customRecyclerAdapter.setItems(listOf(personType, adType, adType, personType, morganFreemanPersonType)) //replace the current list and notifying the adapter if you are on uiThread

customRecyclerAdapter.isEmpty()

customRecyclerAdapter.isNotEmpty()

More functions and features will come in the future follow me on GitHub and receive updates as soon as I make them.

MIT License

Copyright (c) 2017 Gil Goldzweig

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.