Crear una aplicación con Swift desde Xcode que envía un mensaje TCP a una aplicación servidor creada en Android Studio | Operating systems, scripting, PowerShell and security

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.MyApplication"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true"
            android:label="@string/app_name"
            android:theme="@style/Theme.MyApplication">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

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<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools">

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<application

android:allowBackup="true"

android:dataExtractionRules="@xml/data_extraction_rules"

android:fullBackupContent="@xml/backup_rules"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/Theme.MyApplication"

tools:targetApi="31">

<activity

android:name=".MainActivity"

android:exported="true"

android:label="@string/app_name"

android:theme="@style/Theme.MyApplication">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

package com.example.myapplication

import android.os.Bundle
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import java.io.BufferedReader
import java.io.InputStreamReader
import java.net.ServerSocket

class MainActivity : ComponentActivity() {
    private val port = 3333 // Puerto para la conexión

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            startServer()
        }
    }

    private fun startServer() {
        GlobalScope.launch(Dispatchers.IO) {
            try {
                val serverSocket = ServerSocket(port)

                while (true) {
                    val client = serverSocket.accept()
                    val inputStream = client.getInputStream()
                    val bufferedReader = BufferedReader(InputStreamReader(inputStream))

                    val message = bufferedReader.readLine()
                    showMessage(message)

                    bufferedReader.close()
                    client.close()
                }
            } catch (e: Exception) {
                e.printStackTrace()
            }
        }
    }

    private fun showMessage(message: String?) {
        runOnUiThread {
            Toast.makeText(this, "Mensaje recibido: $message", Toast.LENGTH_SHORT).show()
        }
    }
}

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package com.example.myapplication

import android.os.Bundle

import android.widget.Toast

import androidx.activity.ComponentActivity

import androidx.activity.compose.setContent

import kotlinx.coroutines.Dispatchers

import kotlinx.coroutines.GlobalScope

import kotlinx.coroutines.launch

import java.io.BufferedReader

import java.io.InputStreamReader

import java.net.ServerSocket

class MainActivity : ComponentActivity() {

private val port = 3333 // Puerto para la conexión

override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

setContent {

startServer()

}

private fun startServer() {

GlobalScope.launch(Dispatchers.IO) {

try {

val serverSocket = ServerSocket(port)

while (true) {

val client = serverSocket.accept()

val inputStream = client.getInputStream()

val bufferedReader = BufferedReader(InputStreamReader(inputStream))

val message = bufferedReader.readLine()

showMessage(message)

bufferedReader.close()

client.close()

}

} catch (e: Exception) {

e.printStackTrace()

}

private fun showMessage(message: String?) {

runOnUiThread {

Toast.makeText(this, "Mensaje recibido: $message", Toast.LENGTH_SHORT).show()

}

import SwiftUI

@main
struct helloApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

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import SwiftUI

@main

struct helloApp: App {

var body: some Scene {

WindowGroup {

ContentView()

}

import SwiftUI
import Foundation

struct ContentView: View {
    let serverAddress = "192.168.0.18"
    let serverPort = 3333
    let messageToSend = "Hello, TCP!"

    var body: some View {
        VStack {
            Button("Enviar Mensaje") {
                sendMessage()
            }
            .padding()
            .foregroundColor(.white)
            .background(Color.blue)
            .cornerRadius(8)
        }
        .padding()
    }

    func sendMessage() {
        var inputStream: InputStream?
        var outputStream: OutputStream?

        Stream.getStreamsToHost(withName: serverAddress, port: serverPort, inputStream: &inputStream, outputStream: &outputStream)

        guard let inputStreamUnwrapped = inputStream, let outputStreamUnwrapped = outputStream else {
            print("Error al establecer la conexión")
            return
        }

        inputStreamUnwrapped.open()
        outputStreamUnwrapped.open()

        let data = messageToSend.data(using: .utf8)!
        let bytesWritten = outputStreamUnwrapped.write((data as NSData).bytes.bindMemory(to: UInt8.self, capacity: data.count), maxLength: data.count)

        if bytesWritten > 0 {
            print("Mensaje enviado con éxito")
        } else {
            print("Error al enviar el mensaje")
        }

        inputStreamUnwrapped.close()
        outputStreamUnwrapped.close()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

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import SwiftUI

import Foundation

struct ContentView: View {

let serverAddress = "192.168.0.18"

let serverPort = 3333

let messageToSend = "Hello, TCP!"

var body: some View {

VStack {

Button("Enviar Mensaje") {

sendMessage()

}

.padding()

.foregroundColor(.white)

.background(Color.blue)

.cornerRadius(8)

}

.padding()

}

func sendMessage() {

var inputStream: InputStream?

var outputStream: OutputStream?

Stream.getStreamsToHost(withName: serverAddress, port: serverPort, inputStream: &inputStream, outputStream: &outputStream)

guard let inputStreamUnwrapped = inputStream, let outputStreamUnwrapped = outputStream else {

print("Error al establecer la conexión")

return

}

inputStreamUnwrapped.open()

outputStreamUnwrapped.open()

let data = messageToSend.data(using: .utf8)!

let bytesWritten = outputStreamUnwrapped.write((data as NSData).bytes.bindMemory(to: UInt8.self, capacity: data.count), maxLength: data.count)

if bytesWritten > 0 {

print("Mensaje enviado con éxito")

} else {

print("Error al enviar el mensaje")

}

inputStreamUnwrapped.close()

outputStreamUnwrapped.close()

}

struct ContentView_Previews: PreviewProvider {

static var previews: some View {

ContentView()

}

Crear una aplicación con Swift desde Xcode que envía un mensaje TCP a una aplicación servidor creada en Android Studio (Swift, Lo mejor, Kotlin, Android)

Servidor en Android Studio

AndroidManifest.xml

MainActivity.kt

Cliente con Swift desde Xcode

helloApp.swift

ContentView.swift

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