กระพือภาพปิดกล่องโต้ตอบปุ่ม
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กระพือภาพปิดกล่องโต้ตอบ
showDialog(
context: context,
builder: (_) {
return AlertDialog(
title: Text('Wanna Exit?'),
actions: [
FlatButton(
onPressed: () => Navigator.pop(context, false), // passing false
child: Text('No'),
),
FlatButton(
onPressed: () => Navigator.pop(context, true), // passing true
child: Text('Yes'),
),
],
);
}).then((exit) {
if (exit == null) return;
if (exit) {
// user pressed Yes button
} else {
// user pressed No button
}
});หน้าคล้ายกัน
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