package com.example.jetpackcompose
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.material.*
import androidx.compose.runtime.Composable
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import com.example.jetpackcompose.ui.theme.JetpackComposeTheme
class MainActivity : ComponentActivity() {
private lateinit var openDialog: MutableState<Boolean>
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
JetpackComposeTheme {
Surface(color = MaterialTheme.colors.background) {
openDialog = remember {
mutableStateOf(false)
}
addAlterDialog(openDialog = openDialog)
addButton(openDialog = openDialog)
}
}
}
}
}
@Composable
fun addButton(openDialog: MutableState<Boolean>) {
Button(onClick = { openDialog.value = true }) {
Text(text = "點擊彈窗")
}
}
@Composable
fun addAlterDialog(openDialog: MutableState<Boolean>) {
if (openDialog.value) {
AlertDialog(
onDismissRequest = { openDialog.value = false },
title = { Text(text = "標題") },
text = {
Text(
text = "文本內容"
)
}, confirmButton = {
TextButton(onClick = { openDialog.value = false }) {
Text(text = "確認")
}
}, dismissButton = {
TextButton(onClick = { openDialog.value = false }) {
Text(text = "取消")
}
})
}
}
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