MainActivity.kt
package com.cfsuman.jetpackcompose
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.shape.RoundedCornerShape
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.draw.clip
import androidx.compose.ui.unit.dp
class MainActivity : AppCompatActivity() {
override fun onCreate(savedObjectState: Bundle?) {
super.onCreate(savedObjectState)
setContent {
GetScaffold()
}
}
@Composable
fun GetScaffold() {
Scaffold(
topBar = {
TopAppBar(
title = {
Text(
text = "Compose - Pass onClick event to function"
)
},
backgroundColor = Color(0xFFB9966a),
)
},
content = { MainContent() },
backgroundColor = Color(0xFFfaf0e6)
)
}
@Composable
fun MainContent() {
val counter = remember { mutableStateOf(0)}
Column(
horizontalAlignment = Alignment.CenterHorizontally,
verticalArrangement = Arrangement.spacedBy(8.dp),
modifier = Modifier
.fillMaxSize()
.padding(12.dp)
) {
Text(
text = "Counter " + counter.value,
style = MaterialTheme.typography.h4,
modifier = Modifier.padding(24.dp)
)
GetButton(text = "Add One", onClick = {counter.value++})
GetButton(text = "Add Two") {
counter.value +=2
}
GetButton(text = "Add Five") {
counter.value +=5
}
GetButton(text = "Minus Three") {
counter.value -=3
}
}
}
@Composable
fun GetButton(
text:String,
onClick: ()-> Unit,
){
Button(
onClick = onClick,
shape = RoundedCornerShape(8.dp)
){
Text(
text = text,
Modifier.padding(horizontal = 16.dp, vertical = 8.dp)
)
}
}
}
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