JSONparsing.kt

private fun startWork(path: String) {
        Thread {
            val reader: BufferedReader? = null
            val buf = StringBuilder()
            try {
                val url = URL(path)
                val c = url.openConnection() as HttpURLConnection
                c.setRequestMethod("GET")
                c.setReadTimeout(10000)
                c.connect()
                if (c.responseCode != HttpURLConnection.HTTP_OK) {
                    runOnUiThread({
                        Toast.makeText(this, "responce isn't OK", Toast.LENGTH_SHORT).show()
                    })
                }
                val reader = BufferedReader(InputStreamReader(c.getInputStream()))
                var line = reader.readLine()
                while (line != null) {
                    buf.append(line + "\n")
                    line = reader.readLine()
                }
            } catch (e: Exception) {
                e.printStackTrace()
            }
            finally {
                reader?.close()
            }

            val subString = buf.toString().substring(buf.toString().indexOf("(") + 1,
                    buf.toString().indexOf(")"))
            val jsonObject = JSONObject(subString)
            val showMyIPobject = jsonObject.getString("ip")

            runOnUiThread({
                ipText.text = showMyIPobject
            })

        }.start()
    }