這裏只用到基本的 CIO Engine 來取得文字資料，並開啟簡單的 logging 功能，讓初次使用的人能有個簡單的認識。
權限與依賴
AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" />
libs.versions.toml
[versions]
...
kotlinx-serialization = "1.7.3"
ktor = "3.0.2"
[libraries]
...
ktor-client-core = { module = "io.ktor:ktor-client-core", version.ref = "ktor" }
ktor-client-cio = { module = "io.ktor:ktor-client-cio", version.ref = "ktor" }
ktor-client-logging = { module = "io.ktor:ktor-client-logging", version.ref = "ktor" }
[bundles]
ktor = [
"ktor-client-core",
"ktor-client-cio",
"ktor-client-logging",
]
build.gradle.kts (module level :app)
...
dependencies {
...
implementation(libs.bundles.ktor)
}主要程式碼
KtorClient.kt
class KtorClient {
private val client = HttpClient(CIO) {
defaultRequest{ url("https://apidemo.kirin.app/api/v1/") }
install(Logging) {
logger = Logger.SIMPLE
}
}
suspend fun getVersion(): String {
return client.get("version").body()
}
}MainActivity.kt
class MainActivity : ComponentActivity() {
private val ktorClient = KtorClient()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
enableEdgeToEdge()
setContent {
var version by remember {
mutableStateOf("")
}
LaunchedEffect(key1 = Unit) {
version = ktorClient.getVersion()
}
KtorKata20250624Theme {
Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
Column(
modifier = Modifier
.padding(innerPadding)
) {
Text(
text = version,
fontSize = 20.sp,
)
}
}
}
}
}
}如果無法使用 by remember，請加上
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue
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