SearchFragment.kt

package com.izibizy.mvp.fragments.add.address.search

import android.os.Bundle
import android.text.Editable
import android.text.TextWatcher
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import com.izibizy.R
import com.izibizy.common.base.BaseFragment
import com.izibizy.mvp.fragments.add.address.search.adapter.SearchResultsAdapter
import com.yandex.mapkit.MapKitFactory
import com.yandex.mapkit.geometry.Geometry
import com.yandex.mapkit.search.*
import com.yandex.mapkit.search.internal.SearchManagerBinding
import com.yandex.runtime.Error
import kotlinx.android.synthetic.main.fragment_search.*


class SearchFragment : BaseFragment() {

    private var searchManager: SearchManager? = null
    private var searchSession: Session? = null

    private val adapter = SearchResultsAdapter({ item, position ->

    })

    private val searchTextWatcher = object : TextWatcher {
        override fun afterTextChanged(s: Editable) {
            submitQuery(s.toString())
        }

        override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}

        override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}
    }

    private fun submitQuery(query: String) {
        searchSession = (searchManager as SearchManagerBinding).submit(query, Geometry(),
                SearchOptions(), object : Session.SearchListener {
            override fun onSearchError(error: Error) {
                Toast.makeText(context, "Error", Toast.LENGTH_SHORT).show()
            }

            override fun onSearchResponse(response: Response) {
                adapter.data.clear()
                adapter.data.addAll(response.collection.children)
                adapter.notifyDataSetChanged()
            }
        })
    }

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
        return inflater.inflate(R.layout.fragment_search, container, false)
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        setUpViews()
        setUpListeners()
    }

    override fun onStop() {
        MapKitFactory.getInstance().onStop()
        super.onStop()
    }

    override fun onStart() {
        super.onStart()
        MapKitFactory.getInstance().onStart()
    }

    private fun setUpViews() {
        MapKitFactory.setApiKey(resources.getString(R.string.yandex_maps_api_key))
        MapKitFactory.initialize(activity)
        SearchFactory.initialize(context)
        searchManager = SearchFactory.getInstance().createSearchManager(SearchManagerType.COMBINED)

        addressesList.adapter = adapter
    }

    private fun setUpListeners() {
        searchEtx.addTextChangedListener(searchTextWatcher)
    }

    override fun getName() = "search_fragment"
}