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A Super simple library can be used for inserting elements in between RecyclerView's elements.
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README.md

SuperAdapter

License

A Super simple library can be used for inserting elements in between RecyclerView's elements.

Gradle Dependency

Repository

Add this in your root build.gradle file (not your module build.gradle file):

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

Dependency

Add this to your module's build.gradle file:

dependencies {
	...
	implementation 'com.github.pwnjeswani:SuperAdaper:0.1'
	}
}

Usage

To use this library simply add dependency in your project and follow the steps --

STEP 1 ->
Create your adapter and extend SuperAdapter like this,(Refer sample module) 
We have created useradapter which is used 
for displaying users in RecyclerView.
class UserAdapter : SuperAdapter {
    constructor(context: Context){
        createOtherItemList()
    }
    ....
  }
STEP 2 ->
We want to have ad banners (or any other banner) on specfic positions in the useradapter,
for that we are adding dummyobjects (see class DummyObject) 
which takes itemViewType and position as parameters in the constructor 
override fun createOtherItemList() {
        var dummyObject = DummyObject(1, 1)
	var dummyObject2 = DummyObject(1, 3)
        super.otherViewPositions.add(dummyObject)
	super.otherViewPositions.add(dummyObject2)
    }
STEP 3 ->
After adding the dummy objects, we have to override getItemViewType function 
	override fun getItemViewType(position: Int): Int {
        val itemViewType = super.getItemViewType(position)
        return if (itemViewType != -1) {
		//it's dummy object hence returning the actual viewtype 
		//which was mentioned while creating other item list
            itemViewType
        } else {
		//it's item from your list (i.e, useritem) hence returning viewtype 0(User position)
            0
        }
    }
    
STEP 4 ->
Here is the createViewHolder and 
onBindViewHolder function's code for your reference. 
 override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
        when (viewType) {
            0 -> {
                val view = LayoutInflater.from(parent.context).inflate(R.layout.user_item_view, parent, false)
                return UserViewHolder(view)

            }
            1 -> {
                val view = LayoutInflater.from(parent.context).inflate(R.layout.ad_item_view, parent, false)
                return AdViewHolder(view)
            }
        }
    }
    
    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
        when (holder.itemViewType) {
            0 -> {
                val holderr = holder as UserViewHolder
                var user = super.baseList[position] as User
                holderr.tv_user_id.text = user.id.toString()
                holderr.tv_user_name.text = user.name
                holderr.tv_user_phone.text = user.phoneNo.toString()

            }
            1 -> {
	    //write your own logic here
            }
        }
    }
    
STEP 5 -> Using this adapter in your activity/fragment
var userAdapter = UserAdapter(this)
userAdapter.setUserList(usersList)
var llm = LinearLayoutManager(this,RecyclerView.VERTICAL,false)
rv_useres.layoutManager = llm
rv_useres.adapter = userAdapter

Inspiration

In our company, we had frequent requirement of inserting elements in various lists. Earlier we were doing all tasks in the adapter itself, but that was getting frustating & also error prone code which requires long hours to fix and this cycle was repeating every week. To solve this problem Mr.CTO Avneesh Kumar seeded the idea of creating SuperAdapter.

LinkedIn

Contribution

Please fork repository and contribute using pull requests.

Any contributions, large or small, major features, bug fixes, additional language translations, unit/integration tests are welcomed and appreciated but will be thoroughly reviewed and discussed.

License

Copyright 2019 pwnjeswani

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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