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936 lines
25 KiB
936 lines
25 KiB
import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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/// 手势 tap
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typedef GestureOnTapChangeCallback = void Function<T>(T val);
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/// 扩展 Widget
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extension ExWidget on Widget {
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/// 对齐
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Widget align(
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AlignmentGeometry alignment, {
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Key? key,
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}) =>
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Align(
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key: key,
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alignment: alignment,
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child: this,
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);
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/// 对齐 中间
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Widget alignCenter() => align(Alignment.center);
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/// 对齐 左边
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Widget alignLeftCenter() => align(Alignment.centerLeft);
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/// 对齐 右边
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Widget alignRightCenter() => align(Alignment.centerRight);
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/// 对齐 顶部
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Widget alignTopCenter() => align(Alignment.topCenter);
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/// 对齐 底部
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Widget alignBottomCenter() => align(Alignment.bottomCenter);
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Widget alignLeftTop() => align(Alignment.topLeft);
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Widget alignRightTop() => align(Alignment.topRight);
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Widget alignLeftBottom() => align(Alignment.bottomLeft);
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Widget alignRightBottom() => align(Alignment.bottomRight);
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// 比例布局
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Widget aspectRatio({
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Key? key,
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required double aspectRatio,
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}) =>
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AspectRatio(
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key: key,
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aspectRatio: aspectRatio,
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child: this,
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);
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/// 背景颜色
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Widget backgroundColor(
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Color color, {
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Key? key,
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}) =>
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DecoratedBox(
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key: key,
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decoration: BoxDecoration(color: color),
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child: this,
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);
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/// 背景图片
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Widget backgroundImage(
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DecorationImage image, {
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Key? key,
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}) =>
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DecoratedBox(
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key: key,
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decoration: BoxDecoration(image: image),
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child: this,
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);
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/// 边框
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Widget border({
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Key? key,
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double? all,
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double? left,
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double? right,
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double? top,
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double? bottom,
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Color color = const Color(0xFF000000),
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BorderStyle style = BorderStyle.solid,
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}) {
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BoxDecoration decoration = BoxDecoration(
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border: Border(
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left: (left ?? all) == null
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? BorderSide.none
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: BorderSide(color: color, width: left ?? all ?? 0, style: style),
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right: (right ?? all) == null
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? BorderSide.none
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: BorderSide(color: color, width: right ?? all ?? 0, style: style),
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top: (top ?? all) == null
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? BorderSide.none
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: BorderSide(color: color, width: top ?? all ?? 0, style: style),
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bottom: (bottom ?? all) == null
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? BorderSide.none
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: BorderSide(color: color, width: bottom ?? all ?? 0, style: style),
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),
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);
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return DecoratedBox(
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key: key,
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decoration: decoration,
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child: this,
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);
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}
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/// 圆角
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Widget borderRadius({
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Key? key,
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double? all,
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double? topLeft,
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double? topRight,
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double? bottomLeft,
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double? bottomRight,
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}) {
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BoxDecoration decoration = BoxDecoration(
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(topLeft ?? all ?? 0.0),
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topRight: Radius.circular(topRight ?? all ?? 0.0),
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bottomLeft: Radius.circular(bottomLeft ?? all ?? 0.0),
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bottomRight: Radius.circular(bottomRight ?? all ?? 0.0),
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),
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);
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return DecoratedBox(
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key: key,
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decoration: decoration,
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child: this,
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);
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}
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/// 阴影
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Widget boxShadow({
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Key? key,
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Color color = const Color(0xFF000000),
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Offset offset = Offset.zero,
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double blurRadius = 0.0,
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double spreadRadius = 0.0,
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}) {
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BoxDecoration decoration = BoxDecoration(
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boxShadow: [
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BoxShadow(
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color: color,
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blurRadius: blurRadius,
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spreadRadius: spreadRadius,
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offset: offset,
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),
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],
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);
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return DecoratedBox(
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key: key,
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decoration: decoration,
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child: this,
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);
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}
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Widget card({
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Key? key,
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double? radius,
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Color? color,
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Color? shadowColor,
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double? blurRadius,
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}) =>
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Container(
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decoration: BoxDecoration(
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color: color ?? Colors.white,
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borderRadius: BorderRadius.all(
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Radius.circular(radius ?? 5),
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),
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boxShadow: [
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BoxShadow(
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// x偏移量 | y偏移量
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offset: const Offset(0, 3),
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color: shadowColor ?? Colors.black.withOpacity(0.15),
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// 阴影模糊半径
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blurRadius: blurRadius ?? 8,
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// 阴影扩散半径
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spreadRadius: 0,
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blurStyle: BlurStyle.normal,
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),
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],
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),
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child: this,
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);
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// 居中
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Widget center({
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Key? key,
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double? widthFactor,
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double? heightFactor,
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}) =>
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Center(
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key: key,
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widthFactor: widthFactor,
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heightFactor: heightFactor,
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child: this,
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);
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/// 裁剪 oval
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Widget clipOval({Key? key}) => ClipOval(
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key: key,
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child: this,
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);
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/// 裁剪 rect
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Widget clipRect({
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Key? key,
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CustomClipper<Rect>? clipper,
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Clip clipBehavior = Clip.hardEdge,
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}) =>
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ClipRect(
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key: key,
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clipper: clipper,
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clipBehavior: clipBehavior,
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child: this,
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);
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/// 裁剪圆角
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Widget clipRRect({
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Key? key,
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double? all,
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double? topLeft,
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double? topRight,
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double? bottomLeft,
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double? bottomRight,
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CustomClipper<RRect>? clipper,
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Clip clipBehavior = Clip.antiAlias,
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}) =>
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ClipRRect(
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key: key,
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clipper: clipper,
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clipBehavior: clipBehavior,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(topLeft ?? all ?? 0.0),
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topRight: Radius.circular(topRight ?? all ?? 0.0),
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bottomLeft: Radius.circular(bottomLeft ?? all ?? 0.0),
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bottomRight: Radius.circular(bottomRight ?? all ?? 0.0),
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),
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child: this,
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);
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/// 约束
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// Widget constrained({
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// Key? key,
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// double? width,
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// double? height,
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// double minWidth = 0.0,
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// double maxWidth = double.infinity,
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// double minHeight = 0.0,
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// double maxHeight = double.infinity,
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// }) {
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// BoxConstraints constraints = BoxConstraints(
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// minWidth: minWidth,
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// maxWidth: maxWidth,
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// minHeight: minHeight,
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// maxHeight: maxHeight,
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// );
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// constraints = (width != null || height != null)
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// ? constraints.tighten(width: width, height: height)
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// : constraints;
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// return ConstrainedBox(
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// key: key,
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// constraints: constraints,
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// child: this,
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// );
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// }
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// 取消父级约束
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// Widget unconstrained({
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// Key? key,
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// TextDirection? textDirection,
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// AlignmentGeometry alignment = Alignment.center,
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// Axis? constrainedAxis,
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// Clip clipBehavior = Clip.none,
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// }) =>
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// UnconstrainedBox(
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// key: key,
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// textDirection: textDirection,
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// alignment: alignment,
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// constrainedAxis: constrainedAxis,
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// clipBehavior: clipBehavior,
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// child: this,
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// );
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/// 盒子装饰器
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Widget decorated({
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Key? key,
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Color? color,
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DecorationImage? image,
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BoxBorder? border,
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BorderRadius? borderRadius,
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List<BoxShadow>? boxShadow,
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Gradient? gradient,
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BlendMode? backgroundBlendMode,
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BoxShape shape = BoxShape.rectangle,
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DecorationPosition position = DecorationPosition.background,
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}) {
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BoxDecoration decoration = BoxDecoration(
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color: color,
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image: image,
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border: border,
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borderRadius: borderRadius,
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boxShadow: boxShadow,
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gradient: gradient,
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backgroundBlendMode: backgroundBlendMode,
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shape: shape,
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);
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return DecoratedBox(
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key: key,
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decoration: decoration,
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position: position,
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child: this,
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);
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}
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/// elevation
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Widget elevation(
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double elevation, {
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Key? key,
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BorderRadiusGeometry borderRadius = BorderRadius.zero,
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Color shadowColor = const Color(0xFF000000),
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}) =>
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Material(
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key: key,
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color: Colors.transparent,
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elevation: elevation,
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borderRadius: borderRadius,
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shadowColor: shadowColor,
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child: this,
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);
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/// expanded 撑满
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Widget expanded({
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Key? key,
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int flex = 1,
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}) =>
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Expanded(
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key: key,
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flex: flex,
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child: this,
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);
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// Widget fittedBox({
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// Key? key,
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// BoxFit fit = BoxFit.contain,
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// AlignmentGeometry alignment = Alignment.centerLeft,
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// Clip clipBehavior = Clip.none,
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// }) =>
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// FittedBox(
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// key: key,
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// fit: fit,
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// alignment: alignment,
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// clipBehavior: clipBehavior,
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// child: this,
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// );
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/// 弹性布局 flexible
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Widget flexible({
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Key? key,
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int flex = 1,
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FlexFit fit = FlexFit.loose,
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}) =>
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Flexible(
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key: key,
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flex: flex,
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fit: fit,
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child: this,
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);
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//
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// Widget fractionallySizedBox({
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// Key? key,
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// AlignmentGeometry alignment = Alignment.center,
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// double? widthFactor,
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// double? heightFactor,
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// }) =>
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// FractionallySizedBox(
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// key: key,
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// alignment: alignment,
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// widthFactor: widthFactor,
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// heightFactor: heightFactor,
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// child: this,
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// );
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/// 手势
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// Widget gestures({
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// Key? key,
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// GestureOnTapChangeCallback? onTapChange,
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// GestureTapDownCallback? onTapDown,
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// GestureTapUpCallback? onTapUp,
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// GestureTapCallback? onTap,
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// GestureTapCancelCallback? onTapCancel,
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// GestureTapDownCallback? onSecondaryTapDown,
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// GestureTapUpCallback? onSecondaryTapUp,
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// GestureTapCancelCallback? onSecondaryTapCancel,
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// GestureTapCallback? onDoubleTap,
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// GestureLongPressCallback? onLongPress,
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// GestureLongPressStartCallback? onLongPressStart,
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// GestureLongPressMoveUpdateCallback? onLongPressMoveUpdate,
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// GestureLongPressUpCallback? onLongPressUp,
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// GestureLongPressEndCallback? onLongPressEnd,
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// GestureDragDownCallback? onVerticalDragDown,
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// GestureDragStartCallback? onVerticalDragStart,
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// GestureDragUpdateCallback? onVerticalDragUpdate,
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// GestureDragEndCallback? onVerticalDragEnd,
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// GestureDragCancelCallback? onVerticalDragCancel,
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// GestureDragDownCallback? onHorizontalDragDown,
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// GestureDragStartCallback? onHorizontalDragStart,
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// GestureDragUpdateCallback? onHorizontalDragUpdate,
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// GestureDragEndCallback? onHorizontalDragEnd,
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// GestureDragCancelCallback? onHorizontalDragCancel,
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// GestureDragDownCallback? onPanDown,
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// GestureDragStartCallback? onPanStart,
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// GestureDragUpdateCallback? onPanUpdate,
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// GestureDragEndCallback? onPanEnd,
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// GestureDragCancelCallback? onPanCancel,
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// GestureScaleStartCallback? onScaleStart,
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// GestureScaleUpdateCallback? onScaleUpdate,
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// GestureScaleEndCallback? onScaleEnd,
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// GestureForcePressStartCallback? onForcePressStart,
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// GestureForcePressPeakCallback? onForcePressPeak,
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// GestureForcePressUpdateCallback? onForcePressUpdate,
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// GestureForcePressEndCallback? onForcePressEnd,
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// HitTestBehavior? behavior,
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// bool excludeFromSemantics = false,
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// DragStartBehavior dragStartBehavior = DragStartBehavior.start,
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// }) =>
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// GestureDetector(
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// key: key,
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// onTapDown: (TapDownDetails tapDownDetails) {
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// if (onTapDown != null) onTapDown(tapDownDetails);
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// if (onTapChange != null) onTapChange(true);
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// },
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// onTapCancel: () {
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// if (onTapCancel != null) onTapCancel();
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// if (onTapChange != null) onTapChange(false);
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// },
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// onTap: () {
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// if (onTap != null) onTap();
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// if (onTapChange != null) onTapChange(false);
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// },
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// onTapUp: onTapUp,
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// onDoubleTap: onDoubleTap,
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// onLongPress: onLongPress,
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// onLongPressStart: onLongPressStart,
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// onLongPressEnd: onLongPressEnd,
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// onLongPressMoveUpdate: onLongPressMoveUpdate,
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// onLongPressUp: onLongPressUp,
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// onVerticalDragStart: onVerticalDragStart,
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// onVerticalDragEnd: onVerticalDragEnd,
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// onVerticalDragDown: onVerticalDragDown,
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// onVerticalDragCancel: onVerticalDragCancel,
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// onVerticalDragUpdate: onVerticalDragUpdate,
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// onHorizontalDragStart: onHorizontalDragStart,
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// onHorizontalDragEnd: onHorizontalDragEnd,
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// onHorizontalDragCancel: onHorizontalDragCancel,
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// onHorizontalDragUpdate: onHorizontalDragUpdate,
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// onHorizontalDragDown: onHorizontalDragDown,
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// onForcePressStart: onForcePressStart,
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// onForcePressEnd: onForcePressEnd,
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// onForcePressPeak: onForcePressPeak,
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// onForcePressUpdate: onForcePressUpdate,
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// onPanStart: onPanStart,
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// onPanEnd: onPanEnd,
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// onPanCancel: onPanCancel,
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// onPanDown: onPanDown,
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// onPanUpdate: onPanUpdate,
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// onScaleStart: onScaleStart,
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// onScaleEnd: onScaleEnd,
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// onScaleUpdate: onScaleUpdate,
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// behavior: behavior ?? HitTestBehavior.opaque,
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// excludeFromSemantics: excludeFromSemantics,
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// dragStartBehavior: dragStartBehavior,
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// child: this,
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// );
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/// 手势
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Widget onTap(
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GestureTapCallback? onTap, {
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Key? key,
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HitTestBehavior? behavior,
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bool excludeFromSemantics = false,
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DragStartBehavior dragStartBehavior = DragStartBehavior.start,
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}) =>
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GestureDetector(
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key: key,
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onTap: onTap,
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behavior: behavior ?? HitTestBehavior.opaque,
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excludeFromSemantics: excludeFromSemantics,
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dragStartBehavior: dragStartBehavior,
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child: this,
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);
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/// 长按手势
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// Widget onLongPress(
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// GestureTapCallback? onLongPress, {
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// Key? key,
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// HitTestBehavior? behavior,
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// bool excludeFromSemantics = false,
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// DragStartBehavior dragStartBehavior = DragStartBehavior.start,
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// }) =>
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// GestureDetector(
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// key: key,
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// onLongPress: onLongPress,
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// behavior: behavior ?? HitTestBehavior.opaque,
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// excludeFromSemantics: excludeFromSemantics,
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// dragStartBehavior: dragStartBehavior,
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// child: this,
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// );
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/// 约束 高度
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Widget height(
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double height, {
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Key? key,
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}) =>
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ConstrainedBox(
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key: key,
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constraints: BoxConstraints.tightFor(height: height),
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child: this,
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);
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|
|
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/// 限制盒子 最大宽高
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// Widget limitedBox({
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// Key? key,
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// double maxWidth = double.infinity,
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// double maxHeight = double.infinity,
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// }) =>
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// LimitedBox(
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// key: key,
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// maxWidth: maxWidth,
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// maxHeight: maxHeight,
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// child: this,
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// );
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//
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// /// 偏移
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// Widget offstage({
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// Key? key,
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// bool offstage = true,
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// }) =>
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// Offstage(
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// key: key,
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// offstage: offstage,
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// child: this,
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// );
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/// 透明度
|
|
Widget opacity(
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double opacity, {
|
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Key? key,
|
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bool alwaysIncludeSemantics = false,
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}) =>
|
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Opacity(
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key: key,
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opacity: opacity,
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alwaysIncludeSemantics: alwaysIncludeSemantics,
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child: this,
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);
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|
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/// 溢出
|
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Widget overflow({
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Key? key,
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AlignmentGeometry alignment = Alignment.center,
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double? minWidth,
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double? maxWidth,
|
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double? minHeight,
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double? maxHeight,
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}) =>
|
|
OverflowBox(
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key: key,
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alignment: alignment,
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minWidth: minWidth,
|
|
maxWidth: minWidth,
|
|
minHeight: minHeight,
|
|
maxHeight: maxHeight,
|
|
child: this,
|
|
);
|
|
|
|
/// 内间距
|
|
Widget padding({
|
|
Key? key,
|
|
EdgeInsetsGeometry? value,
|
|
double? all,
|
|
double? horizontal,
|
|
double? vertical,
|
|
double? top,
|
|
double? bottom,
|
|
double? left,
|
|
double? right,
|
|
}) =>
|
|
Padding(
|
|
key: key,
|
|
padding: value ??
|
|
EdgeInsets.only(
|
|
top: top ?? vertical ?? all ?? 0.0,
|
|
bottom: bottom ?? vertical ?? all ?? 0.0,
|
|
left: left ?? horizontal ?? all ?? 0.0,
|
|
right: right ?? horizontal ?? all ?? 0.0,
|
|
),
|
|
child: this,
|
|
);
|
|
|
|
// /// 内间距 全
|
|
// Widget paddingAll(double val) => padding(all: val);
|
|
|
|
/// 内间距 下
|
|
Widget paddingBottom(double val) => padding(bottom: val);
|
|
|
|
/// 内间距 横向
|
|
Widget paddingHorizontal(double val) => padding(horizontal: val);
|
|
|
|
/// 内间距 左
|
|
Widget paddingLeft(double val) => padding(left: val);
|
|
|
|
/// 内间距 右
|
|
Widget paddingRight(double val) => padding(right: val);
|
|
|
|
/// 内间距 上
|
|
Widget paddingTop(double val) => padding(top: val);
|
|
|
|
/// 内间距 纵向
|
|
Widget paddingVertical(double val) => padding(vertical: val);
|
|
|
|
/// 内间距
|
|
Widget sliverPadding({
|
|
Key? key,
|
|
EdgeInsetsGeometry? value,
|
|
double? all,
|
|
double? horizontal,
|
|
double? vertical,
|
|
double? top,
|
|
double? bottom,
|
|
double? left,
|
|
double? right,
|
|
}) =>
|
|
SliverPadding(
|
|
key: key,
|
|
padding: value ??
|
|
EdgeInsets.only(
|
|
top: top ?? vertical ?? all ?? 0.0,
|
|
bottom: bottom ?? vertical ?? all ?? 0.0,
|
|
left: left ?? horizontal ?? all ?? 0.0,
|
|
right: right ?? horizontal ?? all ?? 0.0,
|
|
),
|
|
sliver: this,
|
|
);
|
|
|
|
// /// 内间距 下
|
|
// Widget sliverPaddingBottom(double val) => sliverPadding(bottom: val);
|
|
//
|
|
// /// 内间距 横向
|
|
// Widget sliverPaddingHorizontal(double val) => sliverPadding(horizontal: val);
|
|
//
|
|
// /// 内间距 左
|
|
// Widget sliverPaddingLeft(double val) => sliverPadding(left: val);
|
|
//
|
|
// /// 内间距 右
|
|
// Widget sliverPaddingRight(double val) => sliverPadding(right: val);
|
|
//
|
|
// /// 内间距 上
|
|
// Widget sliverPaddingTop(double val) => sliverPadding(top: val);
|
|
//
|
|
// /// 内间距 纵向
|
|
// Widget sliverPaddingVertical(double val) => sliverPadding(vertical: val);
|
|
|
|
Widget marginAll(double margin) =>
|
|
Container(margin: EdgeInsets.all(margin), child: this);
|
|
|
|
Widget marginSymmetric({double horizontal = 0.0, double vertical = 0.0}) =>
|
|
Container(
|
|
margin:
|
|
EdgeInsets.symmetric(horizontal: horizontal, vertical: vertical),
|
|
child: this);
|
|
|
|
Widget marginOnly({
|
|
double left = 0.0,
|
|
double top = 0.0,
|
|
double right = 0.0,
|
|
double bottom = 0.0,
|
|
}) =>
|
|
Container(
|
|
margin: EdgeInsets.only(
|
|
top: top, left: left, right: right, bottom: bottom),
|
|
child: this);
|
|
|
|
Widget get marginZero => Container(margin: EdgeInsets.zero, child: this);
|
|
|
|
/// stack布局 位置
|
|
// Widget positioned({
|
|
// Key? key,
|
|
// double? left,
|
|
// double? top,
|
|
// double? right,
|
|
// double? bottom,
|
|
// double? width,
|
|
// double? height,
|
|
// }) =>
|
|
// Positioned(
|
|
// key: key,
|
|
// left: left,
|
|
// top: top,
|
|
// right: right,
|
|
// bottom: bottom,
|
|
// width: width,
|
|
// height: height,
|
|
// child: this,
|
|
// );
|
|
|
|
// 墨水纹
|
|
// Widget inkWell({
|
|
// Key? key,
|
|
// Function()? onTap,
|
|
// double? borderRadius,
|
|
// }) =>
|
|
// Material(
|
|
// color: Colors.transparent,
|
|
// child: Ink(
|
|
// child: InkWell(
|
|
// borderRadius: borderRadius != null
|
|
// ? BorderRadius.all(
|
|
// Radius.circular(borderRadius),
|
|
// )
|
|
// : null,
|
|
// onTap: onTap ?? () {},
|
|
// child: this,
|
|
// ),
|
|
// ),
|
|
// );
|
|
|
|
/// 涟漪
|
|
// Widget ripple({
|
|
// Key? key,
|
|
// Color? focusColor,
|
|
// Color? hoverColor,
|
|
// Color? highlightColor,
|
|
// Color? splashColor,
|
|
// InteractiveInkFeatureFactory? splashFactory,
|
|
// double? radius,
|
|
// ShapeBorder? customBorder,
|
|
// bool enableFeedback = true,
|
|
// bool excludeFromSemantics = false,
|
|
// FocusNode? focusNode,
|
|
// bool canRequestFocus = true,
|
|
// bool autoFocus = false,
|
|
// bool enable = true,
|
|
// }) =>
|
|
// enable
|
|
// ? Builder(
|
|
// key: key,
|
|
// builder: (BuildContext context) {
|
|
// GestureDetector? gestures =
|
|
// context.findAncestorWidgetOfExactType<GestureDetector>();
|
|
// return Material(
|
|
// color: Colors.transparent,
|
|
// child: InkWell(
|
|
// focusColor: focusColor,
|
|
// hoverColor: hoverColor,
|
|
// highlightColor: highlightColor,
|
|
// splashColor: splashColor,
|
|
// splashFactory: splashFactory,
|
|
// radius: radius,
|
|
// customBorder: customBorder,
|
|
// enableFeedback: enableFeedback,
|
|
// excludeFromSemantics: excludeFromSemantics,
|
|
// focusNode: focusNode,
|
|
// canRequestFocus: canRequestFocus,
|
|
// autofocus: autoFocus,
|
|
// onTap: gestures?.onTap,
|
|
// child: this,
|
|
// ),
|
|
// );
|
|
// },
|
|
// )
|
|
// : Builder(
|
|
// key: key,
|
|
// builder: (context) => this,
|
|
// );
|
|
|
|
// 刘海屏 特殊屏幕 留白
|
|
// Widget safeArea({
|
|
// Key? key,
|
|
// bool top = true,
|
|
// bool bottom = true,
|
|
// bool left = true,
|
|
// bool right = true,
|
|
// }) =>
|
|
// SafeArea(
|
|
// key: key,
|
|
// top: top,
|
|
// bottom: bottom,
|
|
// left: left,
|
|
// right: right,
|
|
// child: this,
|
|
// );
|
|
|
|
/// 比例缩放
|
|
// Widget scale({
|
|
// Key? key,
|
|
// double? all,
|
|
// double? x,
|
|
// double? y,
|
|
// Offset? origin,
|
|
// AlignmentGeometry alignment = Alignment.center,
|
|
// bool transformHitTests = true,
|
|
// }) =>
|
|
// Transform(
|
|
// key: key,
|
|
// transform: Matrix4.diagonal3Values(x ?? all ?? 0, y ?? all ?? 0, 1.0),
|
|
// alignment: alignment,
|
|
// origin: origin,
|
|
// transformHitTests: transformHitTests,
|
|
// child: this,
|
|
// );
|
|
|
|
/// 滚动视图
|
|
// Widget scrollable({
|
|
// Key? key,
|
|
// Axis scrollDirection = Axis.vertical,
|
|
// bool reverse = false,
|
|
// bool? primary,
|
|
// ScrollPhysics? physics,
|
|
// ScrollController? controller,
|
|
// DragStartBehavior dragStartBehavior = DragStartBehavior.start,
|
|
// EdgeInsetsGeometry? padding,
|
|
// }) =>
|
|
// SingleChildScrollView(
|
|
// key: key,
|
|
// scrollDirection: scrollDirection,
|
|
// reverse: reverse,
|
|
// primary: primary,
|
|
// physics: physics,
|
|
// controller: controller,
|
|
// dragStartBehavior: dragStartBehavior,
|
|
// padding: padding,
|
|
// child: this,
|
|
// );
|
|
|
|
/// 语义调试
|
|
/// MaterialApp.showSemanticsDebugger: true,
|
|
// Widget semanticsLabel(
|
|
// String label, {
|
|
// Key? key,
|
|
// }) =>
|
|
// Semantics.fromProperties(
|
|
// key: key,
|
|
// properties: SemanticsProperties(label: label),
|
|
// child: this,
|
|
// );
|
|
|
|
/// 约束 宽高
|
|
// Widget tight({
|
|
// double? width,
|
|
// double? height,
|
|
// Key? key,
|
|
// }) =>
|
|
// ConstrainedBox(
|
|
// key: key,
|
|
// constraints: BoxConstraints.tightFor(width: width, height: height),
|
|
// child: this,
|
|
// );
|
|
|
|
/// 约束 宽高 size
|
|
// Widget tightSize(
|
|
// double size, {
|
|
// Key? key,
|
|
// }) =>
|
|
// ConstrainedBox(
|
|
// key: key,
|
|
// constraints: BoxConstraints.tightFor(width: size, height: size),
|
|
// child: this,
|
|
// );
|
|
|
|
/// transforms Matrix4
|
|
// Widget transform({
|
|
// Key? key,
|
|
// required Matrix4 transform,
|
|
// Offset? origin,
|
|
// AlignmentGeometry? alignment,
|
|
// bool transformHitTests = true,
|
|
// }) =>
|
|
// Transform(
|
|
// key: key,
|
|
// transform: transform,
|
|
// alignment: alignment,
|
|
// origin: origin,
|
|
// transformHitTests: transformHitTests,
|
|
// child: this,
|
|
// );
|
|
|
|
/// translate 变化位置
|
|
// Widget translate({
|
|
// Key? key,
|
|
// required Offset offset,
|
|
// bool transformHitTests = true,
|
|
// }) =>
|
|
// Transform.translate(
|
|
// key: key,
|
|
// offset: offset,
|
|
// transformHitTests: transformHitTests,
|
|
// child: this,
|
|
// );
|
|
|
|
/// 约束 宽度
|
|
Widget width(
|
|
double width, {
|
|
Key? key,
|
|
}) =>
|
|
ConstrainedBox(
|
|
key: key,
|
|
constraints: BoxConstraints.tightFor(width: width),
|
|
child: this,
|
|
);
|
|
|
|
/// SliverToBoxAdapter
|
|
// Widget sliverToBoxAdapter({
|
|
// Key? key,
|
|
// }) =>
|
|
// SliverToBoxAdapter(key: key, child: this);
|
|
}
|
|
|
|
class HabiPreventFastClick {
|
|
static const Duration _duration = Duration(seconds: 1);
|
|
static DateTime? _lastTime;
|
|
|
|
static bool canClick(BuildContext context) {
|
|
final now = DateTime.now();
|
|
if (_lastTime != null && now.difference(_lastTime!) < _duration) {
|
|
// 如果上次点击的时间距离现在不超过1秒，则不允许点击
|
|
return false;
|
|
}
|
|
// 更新最后点击时间
|
|
_lastTime = now;
|
|
return true;
|
|
}
|
|
}
|