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@ -1,29 +1,47 @@
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package com.unicod.uarttest
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import android.annotation.SuppressLint
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import android.app.Application
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import android.content.Context
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import android.os.Bundle
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import androidx.activity.ComponentActivity
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import androidx.activity.compose.setContent
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import androidx.activity.enableEdgeToEdge
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import androidx.activity.viewModels
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.lazy.LazyColumn
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import androidx.compose.material3.Button
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import androidx.compose.material3.Scaffold
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.mutableStateListOf
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.lifecycle.AndroidViewModel
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import com.hoho.android.usbserial.driver.UsbSerialDriver
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import com.hoho.android.usbserial.driver.UsbSerialProber
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import com.unicod.uarttest.ui.theme.UartTestTheme
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import android.hardware.usb.UsbManager
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import androidx.compose.foundation.layout.WindowInsets
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import androidx.compose.foundation.layout.asPaddingValues
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import androidx.compose.foundation.layout.statusBars
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import androidx.compose.foundation.lazy.items
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import androidx.compose.material3.Card
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import androidx.compose.ui.unit.dp
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class MainActivity : ComponentActivity() {
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private val viewModel: UsbViewModel by viewModels()
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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enableEdgeToEdge()
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setContent {
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UartTestTheme {
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Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
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Greeting(
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name = "Android",
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modifier = Modifier.padding(innerPadding)
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)
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UsbDeviceList(viewModel)
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}
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}
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}
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@ -44,4 +62,53 @@ fun GreetingPreview() {
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UartTestTheme {
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Greeting("Android")
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}
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}
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}
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fun findUsbSerialDevices(context: Context): List<UsbSerialDriver> {
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val usbManager = context.getSystemService(Context.USB_SERVICE) as UsbManager
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return UsbSerialProber.getDefaultProber().findAllDrivers(usbManager)
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}
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class UsbViewModel(application: Application) : AndroidViewModel(application) {
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private val _devices = mutableStateListOf<UsbSerialDriver>()
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val devices: List<UsbSerialDriver> get() = _devices
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fun scanUsbDevices() {
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val found = findUsbSerialDevices(getApplication())
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_devices.clear()
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_devices.addAll(found)
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}
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}
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@Composable
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fun UsbDeviceList(viewModel: UsbViewModel) {
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val devices = viewModel.devices
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Column (
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modifier = Modifier
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.fillMaxSize()
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.padding(WindowInsets.statusBars.asPaddingValues())
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) {
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Button(onClick = { viewModel.scanUsbDevices() }) {
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Text("Scan USB Devices")
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}
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LazyColumn {
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items(viewModel.devices) { driver ->
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Card() {
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Column(modifier = Modifier.padding(8.dp)) {
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Text("Device: ${driver.device.deviceName}")
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Text("Vendor ID: ${driver.device.vendorId}, Product ID: ${driver.device.productId}")
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Text("Ports: ${driver.ports.size}")
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driver.ports.forEachIndexed { index, port ->
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Text("↳ Port #$index", modifier = Modifier.padding(start = 16.dp))
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}
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}
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}
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}
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}
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}
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}
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gnssuser