Question

我很难让这款应用运行起来。我似乎无法找到相关的情况作为某种指导。显然单词不被识别为字符串资源，然后我的 Scrape 方法是＆＃34;未解析的参考＆＃34;？

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    val texx: TextView=findViewById(R.id.text1) as TextView
    val button:Button=findViewById(R.id.button1) as Button

    button.setOnClickListener(object : View.OnClickListener{
        override fun onClick(v: View) {
            Scrape().execute() //should work tho

        }
    })


    class Scrape() :AsyncTask<Void, Void, Void>() {

        lateinit var words: String

        override fun doInBackground(vararg params: Void?): Void? {

        try {
            val html = Jsoup.connect("https://www.wikipedia.com/en/Canada").get()
            words = html.text()

        }
        catch (e: Exception) {
            e.printStackTrace()
        }

        return null
    }

        override fun onPostExecute(result: Void?) {
            super.onPostExecute(result)

            texx.text = getString(R.string.words)

        }

}

Answer 1

R.string.words将引用strings.xml文件中的值。尝试将值'words'发送到asynctask

的result参数中

字符串未正确初始化？

1 个答案: