MainActivity.kt

package com.example.practice

import android.os.Bundle
import android.service.autofill.OnClickAction
import android.util.Log
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.width
import androidx.compose.material3.Button
import androidx.compose.material3.ButtonColors
import androidx.compose.material3.ButtonDefaults
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.currentCompositionLocalContext
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.practice.ui.theme.PracticeTheme

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            PracticeTheme {

                SimpleCounterBtn()
            }
        }
    }
}


@Composable
fun SimpleCounterBtn(){
    var count by remember{mutableStateOf(0)}
    
    Button(onClick = {
        count ++
    },
        modifier = Modifier.fillMaxSize()
    ) {
        Text(
            text = "Count : $count",
            fontSize = 50.sp

        )

    }

}

@Preview(showBackground = true)
@Composable
fun GreetingPreview() {
    PracticeTheme {

    }
}