Created
November 10, 2019 10:12
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after adding the state variable to show the alert dialog
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package com.death.demo | |
import android.os.Bundle | |
import androidx.appcompat.app.AppCompatActivity | |
import androidx.compose.Composable | |
import androidx.compose.State | |
import androidx.compose.state | |
import androidx.compose.unaryPlus | |
import androidx.ui.core.Text | |
import androidx.ui.core.setContent | |
import androidx.ui.layout.Column | |
import androidx.ui.layout.Container | |
import androidx.ui.material.AlertDialog | |
import androidx.ui.material.Button | |
import androidx.ui.material.MaterialTheme | |
// Here i created the variable of type State<Boolean> which will be used to | |
// show/hide the alert dialog | |
private val showDialog = +state{ | |
false | |
} | |
class MainActivity : AppCompatActivity() { | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContent { | |
MaterialTheme { | |
Column { | |
showAlertButton() | |
presentDialog() | |
} | |
} | |
} | |
} | |
@Composable | |
fun showAlertButton(){ | |
Button("Show Alert", | |
onClick = { | |
// Here changing the value to true so that the alert dialog can be shown | |
showDialog.value = true | |
} | |
) | |
} | |
@Composable | |
fun presentDialog() { | |
if(showDialog.value) | |
AlertDialog( | |
onCloseRequest = { | |
}, | |
title = { | |
Text(text = "Alert Dialog") | |
}, | |
text = { | |
Text("JetPack Compose Alert Dialog!") | |
}, | |
confirmButton = { | |
Button("Confirm", onClick = { | |
}) | |
} | |
) | |
} | |
} |
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