Crear una aplicación en Android Studio que permita leer un fichero JSON con rutinas de entrenamiento que hay que hacer cada día de la semana | Operating systems, scripting, PowerShell and security

Android, Kotlin

MainActivity.kt

package com.example.leerjson

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.withContext
import org.json.JSONArray
import java.io.BufferedReader
import java.io.InputStreamReader
import java.net.HttpURLConnection
import java.net.URL

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
            Surface(
                modifier = Modifier.padding(16.dp),
            ) {
                val routines = runBlocking {
                    withContext(Dispatchers.IO) {
                        val url = "https://www.jesusninoc.com/rutinasp.json"
                        val json = getJsonFromUrl(url)
                        parseJson(json)
                    }
                }
                DisplayRoutines(routines)
            }
        }
    }

    @Composable
    fun DisplayRoutines(routines: List<String>) {
        Column {
            Text(text = "Routines:")
            routines.forEach { routine ->
                Text(text = routine)
            }
        }
    }

    suspend fun getJsonFromUrl(urlString: String): String {
        val url = URL(urlString)
        val connection = url.openConnection() as HttpURLConnection
        val bufferedReader = BufferedReader(InputStreamReader(connection.inputStream))
        val response = StringBuilder()

        var line: String?
        while (bufferedReader.readLine().also { line = it } != null) {
            response.append(line)
        }

        return response.toString()
    }

    suspend fun parseJson(jsonString: String): List<String> {
        val jsonArray = JSONArray(jsonString)
        val routines = mutableListOf<String>()
        for (i in 0 until jsonArray.length()) {
            val jsonObject = jsonArray.getJSONObject(i)
            val dia = jsonObject.getString("dia")
            val tipo = jsonObject.getString("tipo")
            val rutina = jsonObject.getString("rutina")
            routines.add("Día: $dia, Tipo: $tipo, Rutina: $rutina")
        }
        return routines
    }
}

package com.example.leerjson

import android.os.Bundle

import androidx.activity.ComponentActivity

import androidx.activity.compose.setContent

import androidx.compose.foundation.layout.Column

import androidx.compose.foundation.layout.padding

import androidx.compose.material3.MaterialTheme

import androidx.compose.material3.Surface

import androidx.compose.material3.Text

import androidx.compose.runtime.Composable

import androidx.compose.ui.Modifier

import androidx.compose.ui.tooling.preview.Preview

import androidx.compose.ui.unit.dp

import kotlinx.coroutines.Dispatchers

import kotlinx.coroutines.runBlocking

import kotlinx.coroutines.withContext

import org.json.JSONArray

import java.io.BufferedReader

import java.io.InputStreamReader

import java.net.HttpURLConnection

import java.net.URL

class MainActivity : ComponentActivity() {

override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

setContent {

Surface(

modifier = Modifier.padding(16.dp),

) {

val routines = runBlocking {

withContext(Dispatchers.IO) {

val url = "https://www.jesusninoc.com/rutinasp.json"

val json = getJsonFromUrl(url)

parseJson(json)

}

DisplayRoutines(routines)

}

@Composable

fun DisplayRoutines(routines: List<String>) {

Column {

Text(text = "Routines:")

routines.forEach { routine ->

Text(text = routine)

}

suspend fun getJsonFromUrl(urlString: String): String {

val url = URL(urlString)

val connection = url.openConnection() as HttpURLConnection

val bufferedReader = BufferedReader(InputStreamReader(connection.inputStream))

val response = StringBuilder()

var line: String?

while (bufferedReader.readLine().also { line = it } != null) {

response.append(line)

}

return response.toString()

}

suspend fun parseJson(jsonString: String): List<String> {

val jsonArray = JSONArray(jsonString)

val routines = mutableListOf<String>()

for (i in 0 until jsonArray.length()) {

val jsonObject = jsonArray.getJSONObject(i)

val dia = jsonObject.getString("dia")

val tipo = jsonObject.getString("tipo")

val rutina = jsonObject.getString("rutina")

routines.add("Día: $dia, Tipo: $tipo, Rutina: $rutina")

}

return routines

}

Crear una aplicación en Android Studio que permita leer un fichero JSON con rutinas de entrenamiento que hay que hacer cada día de la semana (Kotlin, Android)

MainActivity.kt

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