MainActivity.kt
package com.cfsuman.jetpackcompose
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.*
import androidx.compose.material.*
import androidx.compose.runtime.*
import androidx.compose.ui.graphics.Color
import androidx.compose.material.Text
import androidx.compose.material.TopAppBar
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.TextStyle
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {GetScaffold()}
}
@Composable
fun GetScaffold() {
Scaffold(
topBar = {TopAppBar(
title = {Text(text = "Compose - TabRow")},
backgroundColor = Color(0xFF89CFF0),
)},
content = { MainContent() },
backgroundColor = Color(0xFFF0FFFF)
)
}
@Composable
fun MainContent() {
var selectedIndex by remember { mutableStateOf(0)}
val tabs = listOf("Tab A","Tab B","Tab C","Tab D")
Column(Modifier.fillMaxSize()) {
TabRow(
selectedTabIndex = selectedIndex,
backgroundColor = Color(0xFF2E5894),
contentColor = Color(0xFFBCD4E6)
) {
tabs.forEachIndexed { index, tab ->
Tab(
selected = selectedIndex == index,
onClick = { selectedIndex = index},
) {
Text(
text = tab,
modifier = Modifier.padding(12.dp)
)
}
}
}
Box(Modifier.fillMaxSize().wrapContentSize(Alignment.Center)) {
Text(
text = tabs[selectedIndex],
style = TextStyle(fontSize = 30.sp)
)
}
}
}
}
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