Hello everyone recently i want to add crypto currency api to my app
I am taking every data good. like 'symbol' 'name' 'current-price' but when it comes to
retrive icon and showing it in recycler view i am really stuck
Here is my Adapter
class CoinAdapter(var context: Context, var cryptoList: ArrayList<CoinModel>):RecyclerView.Adapter<CoinViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CoinViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.currency_item,parent,false)
return CoinViewHolder(view)
}
override fun onBindViewHolder(holder: CoinViewHolder, position: Int) {
holder.bind(cryptoList[position])
}
override fun getItemCount(): Int {
return cryptoList.count()
}
}
Here is my ViewHolder :
class CoinViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val nameView: TextView = itemView.findViewById(R.id.coinName)
val priceView: TextView = itemView.findViewById(R.id.priceUsd)
val currencyView: TextView = itemView.findViewById(R.id.coinSymbol)
var imgCurrencyIcon: ImageView = itemView.findViewById(R.id.imgCurrencyIcon)
fun bind(cryptoModel: CoinModel) {
this.nameView.text = cryptoModel.name
this.currencyView.text = cryptoModel.currency
when {
cryptoModel.price ?: 0.0 > 100.0 -> {
this.priceView.text = String.format("%.0f", cryptoModel.price)
}
cryptoModel.price ?: 0.0 > 1.0 -> {
this.priceView.text = String.format("%.2f", cryptoModel.price)
}
else -> {
this.priceView.text = String.format("%.4f", cryptoModel.price)
}
}
}
} Here is my dataClass
data class CoinModel(
var currency: String?="",
var price: Double? = 0.0,
var name: String?="",
var logo_url: String = ""
)
class CoinAdapter(var context: Context, var cryptoList: ArrayList<CoinModel>):RecyclerView.Adapter<CoinViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CoinViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.currency_item,parent,false)
return CoinViewHolder(view)
}
override fun onBindViewHolder(holder: CoinViewHolder, position: Int) {
holder.bind(cryptoList[position])
}
override fun getItemCount(): Int {
return cryptoList.count()
}
}
My Fragment
CurrencyFragment : Fragment() {
private val baseUrl = "https://api.nomics.com/v1/currencies/"
private var cryptoModels: ArrayList<CoinModel>? = arrayListOf()
private var fragmentView: View? = null
private var recyclerView: RecyclerView? = null
private var coinAdapter: CoinAdapter? = null
//https://api.nomics.com/v1/currencies/ticker?key=9aaf5b50f60d58d38fab838fe5b37aa3175f7d52
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
if (fragmentView == null) {
fragmentView = inflater.inflate(R.layout.fragment_currency, container, false)
}
return fragmentView
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
recyclerView = view.findViewById(R.id.coin_recycler_view)
coinAdapter = context?.let { CoinAdapter(it, arrayListOf()) }
recyclerView?.layoutManager =
LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
recyclerView?.adapter = coinAdapter
loadData()
}
private fun loadData() {
val retrofit = Retrofit.Builder()
.baseUrl(baseUrl)
.addConverterFactory(GsonConverterFactory.create())
.build()
val service = retrofit.create(CryptoAPI::class.java)
val call = service.getData()
call.enqueue(object : Callback<List<CoinModel>> {
@SuppressLint("NotifyDataSetChanged")
override fun onResponse(
call: Call<List<CoinModel>>,
response: Response<List<CoinModel>>
) {
if (response.isSuccessful) {
response.body()?.let {
cryptoModels = ArrayList(it)
coinAdapter?.cryptoList = cryptoModels ?: arrayListOf()
coinAdapter?.notifyDataSetChanged()
}
}
}
override fun onFailure(call: Call<List<CoinModel>>, t: Throwable) {
t.printStackTrace()
}
})
}
}
Note: I didn't paste my method for imageView because i can't figure it out. name text and symbol is perfectly fine and working. Note2: API sends me icons as 'svg' format so i can't use Fresco too. Please help me to find solution on this
