Komponierbar wird nicht von Android Studio IDE identifiziert

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Expand view Topic review: Komponierbar wird nicht von Android Studio IDE identifiziert

by Anonymous » 11 Jul 2025, 15:34

Beim Erstellen von Navhost im Inhaltsblock kann Android Studio komponierbar nicht identifizieren: Ich habe auch Navigationsabhängigkeit hinzugefügt und sogar eine Anweisung importiert.

Code: Select all

`plugins {
alias(libs.plugins.android.application)
alias(libs.plugins.kotlin.android)
alias(libs.plugins.kotlin.compose)
//    id("androidx.navigation.safeargs.kotlin")
}

android {
namespace = "com.example.navigation"
compileSdk = 34

defaultConfig {
applicationId = "com.example.navigation"
minSdk = 24
targetSdk = 34
versionCode = 1
versionName = "1.0"

testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
release {
isMinifyEnabled = false
proguardFiles(
getDefaultProguardFile("proguard-android-optimize.txt"),
"proguard-rules.pro"
)
}
}
compileOptions {
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = "1.8"
}
buildFeatures {
compose = true
}
}

dependencies {
val nav_version = "2.8.2"

// Jetpack Compose integration
implementation("androidx.navigation:navigation-compose:$nav_version")

implementation(libs.androidx.core.ktx)
implementation(libs.androidx.lifecycle.runtime.ktx)
implementation(libs.androidx.activity.compose)
implementation(platform(libs.androidx.compose.bom))
implementation(libs.androidx.ui)
implementation(libs.androidx.ui.graphics)
implementation(libs.androidx.ui.tooling.preview)
implementation(libs.androidx.material3)
testImplementation(libs.junit)
androidTestImplementation(libs.androidx.junit)
androidTestImplementation(libs.androidx.espresso.core)
androidTestImplementation(platform(libs.androidx.compose.bom))
androidTestImplementation(libs.androidx.ui.test.junit4)
debugImplementation(libs.androidx.ui.tooling)
debugImplementation(libs.androidx.ui.test.manifest)
}`
< /code>
Und hier steckt es fest. < /p>
package com.example.navigation

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Scaffold
import androidx.navigation.compose.composable
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.tooling.preview.Preview
import androidx.navigation.NavController
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.rememberNavController
import com.example.navigation.ui.theme.NavigationTheme

class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
enableEdgeToEdge()
setContent {
NavigationTheme {
val navController= rememberNavController()
Scaffold(modifier = Modifier.fillMaxSize()) {   innerPadding ->
Greeting(
name = "Android",
modifier = Modifier.padding(innerPadding),
navController=navController
)
}
}
}
}
}

@Composable
fun Greeting(name: String, modifier: Modifier =   Modifier,navController: NavController) {
NavHost(navController,"Home"){
composable("Home"){

}
}
}
Hier in diesem komponierbaren wird rot hervorgehoben ....

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