android - 在 Kotlin 中将 SVG 文件从 API 加载到 Android 中的 ImageView 中

Question

我正在将 Nomics API 与我的 CryptoCurrencyTrackerApp 一起使用。我已经在 github 中搜索了我的问题，但找不到合适的解决方案。所以这是我的问题:我的应用程序工作完全正常，但我无法在回收器 View 中加载加密货币 Logo 。 这是我运行应用程序时的照片:

我已经设法获取价格、名称、符号，但如你所见，我无法加载图像 API nomics 使用 svg 格式作为图像 有人可以帮我加载 ImageView 吗 这是我的代码:

class CoinViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {

private val nameView: TextView = itemView.findViewById(R.id.coinName)

private val priceView: TextView = itemView.findViewById(R.id.priceUsd)

private val currencyView: TextView = itemView.findViewById(R.id.coinSymbol)

private val imageCurrencyView : 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)
        }

    }

}

} 我的货币 fragment

class 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



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()

        }

    })

}

} 我的币模型

data class CoinModel(

var currency: String?="",

var price: Double? = 0.0,

var name: String?="",

var logo_url: String? = "",

var rank: String = "",

) 我的 CoinAdapter

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()
}

} 最后是我的界面:

interface CryptoAPI {

@GET("ticker?key=mykey")

fun getData():Call<List<CoinModel>>

}

Answer 1

我找到了在 imageview 中显示 svg 的解决方案。我遇到了同样的问题，然后我使用了以下库。我可以很好地从 API 和本地文件在 android Imageview 中显示 SVG 图像

Sharp lib for SVG