app/lib/common/utils/base_utils.dart

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import 'package:fluent_ui/fluent_ui.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'dart:ui' as ui;
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import 'package:flutter/services.dart';
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void dPrint(src) {
if (kDebugMode) {
print(src);
}
}
Future showToast(BuildContext context, String msg,
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{BoxConstraints? constraints, String? title}) async {
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return showBaseDialog(context,
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title: title ?? "提示",
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content: Text(msg),
actions: [
FilledButton(
child: const Padding(
padding: EdgeInsets.only(top: 2, bottom: 2, left: 8, right: 8),
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child: Text('我知道了'),
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),
onPressed: () => Navigator.pop(context),
),
],
constraints: constraints);
}
Future<bool> showConfirmDialogs(
BuildContext context, String title, Widget content,
{String confirm = "确认",
String cancel = "取消",
BoxConstraints? constraints}) async {
final r = await showBaseDialog(context,
title: title,
content: content,
actions: [
if (confirm.isNotEmpty)
FilledButton(
child: Padding(
padding:
const EdgeInsets.only(top: 2, bottom: 2, left: 8, right: 8),
child: Text(confirm),
),
onPressed: () => Navigator.pop(context, true),
),
if (cancel.isNotEmpty)
Button(
child: Padding(
padding:
const EdgeInsets.only(top: 2, bottom: 2, left: 8, right: 8),
child: Text(cancel),
),
onPressed: () => Navigator.pop(context, false),
),
],
constraints: constraints);
return r == true;
}
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Future<String?> showInputDialogs(BuildContext context,
{required String title,
required String content,
BoxConstraints? constraints,
String? initialValue,
List<TextInputFormatter>? inputFormatters}) async {
String? userInput;
constraints ??=
BoxConstraints(maxWidth: MediaQuery.of(context).size.width * .38);
final ok = await showConfirmDialogs(
context,
title,
Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
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if (content.isNotEmpty)
Text(
content,
style: TextStyle(color: Colors.white.withOpacity(.6)),
),
const SizedBox(height: 8),
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TextFormBox(
initialValue: initialValue,
onChanged: (str) {
userInput = str;
},
inputFormatters: inputFormatters,
),
],
),
constraints: constraints);
if (ok == true) return userInput;
return null;
}
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Future showBaseDialog(BuildContext context,
{required String title,
required Widget content,
List<Widget>? actions,
BoxConstraints? constraints}) async {
return await showDialog(
context: context,
builder: (context) => ContentDialog(
title: Text(title),
content: content,
constraints: constraints ?? const BoxConstraints(
maxWidth: 512,
maxHeight: 756.0,
),
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actions: actions,
),
);
}
bool stringIsNotEmpty(String? s) {
return s != null && (s.isNotEmpty);
}
Future<Uint8List?> widgetToPngImage(GlobalKey repaintBoundaryKey,
{double pixelRatio = 3.0}) async {
RenderRepaintBoundary? boundary = repaintBoundaryKey.currentContext
?.findRenderObject() as RenderRepaintBoundary?;
if (boundary == null) return null;
ui.Image image = await boundary.toImage(pixelRatio: pixelRatio);
ByteData? byteData = await image.toByteData(format: ui.ImageByteFormat.png);
if (byteData == null) return null;
var pngBytes = byteData.buffer.asUint8List();
return pngBytes;
}
double roundDoubleTo(double value, double precision) =>
(value * precision).round() / precision;