ch8n

// create properties 
data class SharedToolbarProps(
    val title: String,
    val subtitle: String,
    val isMenuIconVisible: Boolean,
    val onMenuIconClicked: () -> Unit
) {
    companion object {
        val default: SharedToolbarProps = SharedToolbarProps(
            title = "Lorem Title",

ch8n

/*
 * MIT License
 *
 * Copyright (c) 2022 Albert Chang
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is

ch8n

@Composable
fun Foo() {
    val countState = remember { mutableStateOf(0) }
    
    Button(onClick = {
        
        val count = countState.value //👈 count is 0
        
        val setCount = { lastestCount: Int ->
            countState.value = lastestCount

ch8n

// Create a counter state
var count by remember {
   mutableStateOf(value = 0)
}
Column(
   modifier = Modifier
   .fillMaxSize()
   .background(Color.White),
   verticalArrangement = Arrangement.Center,
   horizontalAlignment = Alignment.CenterHorizontally

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Button(
   onClick = {
      // thing that is happening is :
      setCount(count + 1) //👉 0 + 1
      setCount(count + 1) //👉 0 + 1
   }
) {
   Text(text = "Increment by 2")
} // button end

ch8n

// Create a counter state
val(count, setCount) = remember {
   mutableStateOf(0)
}
Column(
   modifier = Modifier
   .fillMaxSize()
   .background(Color.White),
   verticalArrangement = Arrangement.Center,
   horizontalAlignment = Alignment.CenterHorizontally

ch8n

// Create a counter state
val(count, setCount) = remember {
   mutableStateOf(0)
}
Column(
   modifier = Modifier
   .fillMaxSize()
   .background(Color.White),
   verticalArrangement = Arrangement.Center,
   horizontalAlignment = Alignment.CenterHorizontally

ch8n

val(isChecked, setChecked) = remember {
   mutableStateOf(value = false)
}

Checkbox(
   checked = isChecked,
   onCheckedChange = setChecked
)

// vs

ch8n

// dont forget these imports
import androidx.compose.runtime.getValue
import androidx.compose.runtime.setValue

// for read only from state
val count by mutableStateOf(0) 

// for read and write on state
var count by mutableStateOf(0)

ch8n

inline operator fun <T> State<T>.getValue(thisObj: Any?, property: KProperty<*>): T = value

inline operator fun <T> MutableState<T>.setValue(thisObj: Any?, property: KProperty<*>, value: T) {
    this.value = value
}