From e5251a694ca789e4f7e7d2c7996c3e021a2c6976 Mon Sep 17 00:00:00 2001 From: toly <1981462002@qq.com> Date: Tue, 11 Aug 2020 12:59:31 +0800 Subject: [PATCH] =?UTF-8?q?:sparkles:=20=E6=9B=B4=E6=96=B0flutter=20unit?= =?UTF-8?q?=20mac=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- assets/flutter.db | Bin 774144 -> 778240 bytes .../RepaintBoundary/node1_base.dart | 182 ++++++++++++++++++ .../RepaintBoundary/node2_save.dart | 68 +++++++ lib/views/widgets/exp/render_object_unit.dart | 2 + lib/views/widgets/widgets_map.dart | 5 + macos/Flutter/GeneratedPluginRegistrant.swift | 2 + macos/Podfile.lock | 11 ++ pubspec.lock | 58 +++++- pubspec.yaml | 1 + 9 files changed, 328 insertions(+), 1 deletion(-) create mode 100644 lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node1_base.dart create mode 100644 lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node2_save.dart diff --git a/assets/flutter.db 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O96@KmJO5$zV*dla`)H&9 diff --git a/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node1_base.dart b/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node1_base.dart new file mode 100644 index 0000000..2cf57af --- /dev/null +++ b/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node1_base.dart @@ -0,0 +1,182 @@ +import 'dart:ui'; + +import 'package:flutter/cupertino.dart'; +import 'package:flutter/material.dart'; + +/// create by 张风捷特烈 on 2020/7/22 +/// contact me by email 1981462002@qq.com +/// 说明: 264 RepaintBoundary 重绘边界 为子组件创建一个单独的显示列表,提升性能。源码中在TextField、DrawerController、Scrollbar、Sliver等组件中均有应用。 +// { +// "widgetId": 264, +// "name": "RepaintBoundary基本使用", +// "priority": 1, +// "subtitle": "【child】 : 子组件 【Widget】\n" +// "比如上面的绘制视图，即使shouldRepaint为false,在滑动中会也会不断执行paint方法,使用RepaintBoundary可以避免不必要的绘制。", +// } + +class RepaintBoundaryDemo extends StatelessWidget{ + @override + Widget build(BuildContext context) { + return RepaintBoundary( + child: TempPlayBezier3Page(), + ); + } +} + +class TempPlayBezier3Page extends StatefulWidget { + @override + _TempPlayBezier3PageState createState() => _TempPlayBezier3PageState(); +} + +class _TempPlayBezier3PageState extends State { + List _pos = []; + int selectPos; + + @override + void initState() { + _initPoints(); + super.initState(); + } + + void _initPoints() { + _pos = List(); + _pos.add(Offset(0, 0)); + _pos.add(Offset(60, -60)); + _pos.add(Offset(-90, -90)); + _pos.add(Offset(-120, -40)); + } + + @override + Widget build(BuildContext context) { + return Container( + height: 200, + width: MediaQuery.of(context).size.width, + child: CustomPaint( + painter: TempBezierPainter(pos: _pos, selectPos: selectPos), + ), + ); + } +} + +class TempBezierPainter extends CustomPainter { + Paint _gridPaint; + Path _gridPath; + + Paint _mainPaint; + Path _mainPath; + int selectPos; + Paint _helpPaint; + + List pos; + + TempBezierPainter({this.pos, this.selectPos}) { + _gridPaint = Paint()..style = PaintingStyle.stroke; + _gridPath = Path(); + + _mainPaint = Paint() + ..color = Colors.orange + ..style = PaintingStyle.stroke + ..strokeWidth = 2; + _mainPath = Path(); + + _helpPaint = Paint() + ..color = Colors.purple + ..style = PaintingStyle.stroke + ..strokeWidth = 2 + ..strokeCap = StrokeCap.round; + } + + @override + void paint(Canvas canvas, Size size) { + print('----------Paint-------'); + canvas.clipRect(Offset.zero & size); + canvas.translate(size.width / 2, size.height / 2); + _drawGrid(canvas, size); //绘制格线 + _drawAxis(canvas, size); //绘制轴线 + + _mainPath.moveTo(pos[0].dx, pos[0].dy); + _mainPath.cubicTo( + pos[1].dx, pos[1].dy, pos[2].dx, pos[2].dy, pos[3].dx, pos[3].dy); + canvas.drawPath(_mainPath, _mainPaint); + _drawHelp(canvas); + _drawSelectPos(canvas); + } + + @override + bool shouldRepaint(CustomPainter oldDelegate) => false; + + void _drawGrid(Canvas canvas, Size size) { + _gridPaint + ..color = Colors.grey + ..strokeWidth = 0.5; + _gridPath = _buildGridPath(_gridPath, size); + canvas.drawPath(_buildGridPath(_gridPath, size), _gridPaint); + + canvas.save(); + canvas.scale(1, -1); //沿x轴镜像 + canvas.drawPath(_gridPath, _gridPaint); + canvas.restore(); + + canvas.save(); + canvas.scale(-1, 1); //沿y轴镜像 + canvas.drawPath(_gridPath, _gridPaint); + canvas.restore(); + + canvas.save(); + canvas.scale(-1, -1); //沿原点镜像 + canvas.drawPath(_gridPath, _gridPaint); + canvas.restore(); + } + + void _drawAxis(Canvas canvas, Size size) { + canvas.drawPoints( + PointMode.lines, + [ + Offset(-size.width / 2, 0), + Offset(size.width / 2, 0), + Offset(0, -size.height / 2), + Offset(0, size.height / 2), + Offset(0, size.height / 2), + Offset(0 - 7.0, size.height / 2 - 10), + Offset(0, size.height / 2), + Offset(0 + 7.0, size.height / 2 - 10), + Offset(size.width / 2, 0), + Offset(size.width / 2 - 10, 7), + Offset(size.width / 2, 0), + Offset(size.width / 2 - 10, -7), + ], + _gridPaint + ..color = Colors.blue + ..strokeWidth = 1.5); + } + + Path _buildGridPath(Path path, Size size, {step = 20.0}) { + for (int i = 0; i < size.height / 2 / step; i++) { + path.moveTo(0, step * i); + path.relativeLineTo(size.width / 2, 0); + } + for (int i = 0; i < size.width / 2 / step; i++) { + path.moveTo(step * i, 0); + path.relativeLineTo( + 0, + size.height / 2, + ); + } + return path; + } + + void _drawHelp(Canvas canvas) { + canvas.drawPoints(PointMode.lines, pos, _helpPaint..strokeWidth = 1); + canvas.drawPoints(PointMode.points, pos, _helpPaint..strokeWidth = 8); + } + + void _drawSelectPos(Canvas canvas) { + if (selectPos == null) return; + canvas.drawCircle( + pos[selectPos], + 10, + _helpPaint + ..color = Colors.green + ..strokeWidth = 2); + } +} diff --git a/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node2_save.dart b/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node2_save.dart new file mode 100644 index 0000000..7d700f2 --- /dev/null +++ b/lib/views/widgets/SingleChildRenderObjectWidget/RepaintBoundary/node2_save.dart @@ -0,0 +1,68 @@ +import 'dart:io'; +import 'dart:typed_data'; +import 'dart:ui'; + +import 'package:flutter/cupertino.dart'; +import 'package:flutter/material.dart'; +import 'package:flutter/rendering.dart'; +import 'package:path_provider/path_provider.dart'; +import 'dart:ui' as ui; +import 'node1_base.dart'; + +/// create by 张风捷特烈 on 2020/7/22 +/// contact me by email 1981462002@qq.com +/// 说明: +// { +// "widgetId": 264, +// "name": "保存Widget成为图片", +// "priority": 2, +// "subtitle": "通过RenderRepaintBoundary可以获取子组件的Image信息，从而获取字节保存为图片文件。", +// } + +class RepaintBoundarySave extends StatelessWidget { + final GlobalKey _globalKey = GlobalKey(); + + @override + Widget build(BuildContext context) { + return Stack( + children: [ + RepaintBoundary( + key: _globalKey, + child: TempPlayBezier3Page(), + ), + Positioned(right: -10, child: _buildButton3(context)) + ], + ); + } + + Widget _buildButton3(context) => MaterialButton( + child: Icon( + Icons.save_alt, + size: 15, + color: Colors.white, + ), + color: Colors.green, + shape: CircleBorder( + side: BorderSide(width: 2.0, color: Color(0xFFFFDFDFDF)), + ), + onPressed: () async { + var bits = await _widget2Image(_globalKey); + var dir = await getApplicationSupportDirectory(); + var file = File(dir.path + "/save_img.png"); + var f = await file.writeAsBytes(bits); + Scaffold.of(context).showSnackBar(SnackBar( + backgroundColor: Theme.of(context).primaryColor, + content: Text('保存成功后! 路径为:${f.path}'), + )); + }); + + Future _widget2Image(GlobalKey key) async { + RenderRepaintBoundary boundary = key.currentContext.findRenderObject(); + //获得 ui.image + ui.Image img = await boundary.toImage(); + //获取图片字节 + var byteData = await img.toByteData(format: ui.ImageByteFormat.png); + Uint8List bits = byteData.buffer.asUint8List(); + return bits; + } +} diff --git a/lib/views/widgets/exp/render_object_unit.dart b/lib/views/widgets/exp/render_object_unit.dart index 3197d96..b18d292 100644 --- a/lib/views/widgets/exp/render_object_unit.dart +++ b/lib/views/widgets/exp/render_object_unit.dart @@ -29,6 +29,8 @@ export '../SingleChildRenderObjectWidget/Align/node1_base.dart'; export '../SingleChildRenderObjectWidget/Align/node2_other.dart'; export '../SingleChildRenderObjectWidget/CustomSingleChildLayout/node1_base.dart'; export '../SingleChildRenderObjectWidget/CustomSingleChildLayout/node2_offset.dart'; +export '../SingleChildRenderObjectWidget/RepaintBoundary/node1_base.dart'; +export '../SingleChildRenderObjectWidget/RepaintBoundary/node2_save.dart'; export '../SingleChildRenderObjectWidget/ConstrainedBox/node1_base.dart'; export '../SingleChildRenderObjectWidget/FractionalTranslation/node1_base.dart'; diff --git a/lib/views/widgets/widgets_map.dart b/lib/views/widgets/widgets_map.dart index 9d849db..c876aff 100644 --- a/lib/views/widgets/widgets_map.dart +++ b/lib/views/widgets/widgets_map.dart @@ -149,6 +149,11 @@ class WidgetsMap { CustomVisibility(), ReplacementVisibility(), ]; + case "RepaintBoundary": + return [ + RepaintBoundaryDemo(), + RepaintBoundarySave(), + ]; case "Chip": return [ CustomChip(), diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift index affe9be..fd853e1 100644 --- a/macos/Flutter/GeneratedPluginRegistrant.swift +++ b/macos/Flutter/GeneratedPluginRegistrant.swift @@ -5,11 +5,13 @@ import FlutterMacOS import Foundation +import path_provider_macos import shared_preferences_macos import sqflite import url_launcher_macos func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) { + PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin")) SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin")) SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin")) UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin")) diff --git a/macos/Podfile.lock b/macos/Podfile.lock index 7218929..1ccf80d 100644 --- a/macos/Podfile.lock +++ b/macos/Podfile.lock @@ -3,6 +3,9 @@ PODS: - FMDB (2.7.5): - FMDB/standard (= 2.7.5) - FMDB/standard (2.7.5) + - path_provider (0.0.1) + - path_provider_macos (0.0.1): + - FlutterMacOS - shared_preferences (0.0.1) - shared_preferences_macos (0.0.1): - FlutterMacOS @@ -15,6 +18,8 @@ PODS: DEPENDENCIES: - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64`) + - path_provider (from `Flutter/ephemeral/.symlinks/plugins/path_provider/macos`) + - path_provider_macos (from `Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos`) - shared_preferences (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences/macos`) - shared_preferences_macos (from `Flutter/ephemeral/.symlinks/plugins/shared_preferences_macos/macos`) - sqflite (from `Flutter/ephemeral/.symlinks/plugins/sqflite/macos`) @@ -28,6 +33,10 @@ SPEC REPOS: EXTERNAL SOURCES: FlutterMacOS: :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64 + path_provider: + :path: Flutter/ephemeral/.symlinks/plugins/path_provider/macos + path_provider_macos: + :path: Flutter/ephemeral/.symlinks/plugins/path_provider_macos/macos shared_preferences: :path: Flutter/ephemeral/.symlinks/plugins/shared_preferences/macos shared_preferences_macos: @@ -42,6 +51,8 @@ EXTERNAL SOURCES: SPEC CHECKSUMS: FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9 FMDB: 2ce00b547f966261cd18927a3ddb07cb6f3db82a + path_provider: e0848572d1d38b9a7dd099e79cf83f5b7e2cde9f + path_provider_macos: a0a3fd666cb7cd0448e936fb4abad4052961002b shared_preferences: 9fec34d1bd906196a4da48fcf6c3ad521cc00b8d shared_preferences_macos: 5e5c2839894accb56b7d23328905b757f2bafaf6 sqflite: 6c1f07e1d4399d619ea619fea9171251dd24d058 diff --git a/pubspec.lock b/pubspec.lock index 3c28c02..06b8cc3 100644 --- a/pubspec.lock +++ b/pubspec.lock @@ -71,6 +71,13 @@ packages: url: "https://pub.flutter-io.cn" source: hosted version: "1.1.0" + file: + dependency: transitive + description: + name: file + url: "https://pub.flutter-io.cn" + source: hosted + version: "5.2.1" flutter: dependency: "direct main" description: flutter @@ -135,6 +142,41 @@ packages: url: "https://pub.flutter-io.cn" source: hosted version: "1.7.0" + path_provider: + dependency: "direct main" + description: + name: path_provider + url: "https://pub.flutter-io.cn" + source: hosted + version: "1.6.11" + path_provider_linux: + dependency: transitive + description: + name: path_provider_linux + url: "https://pub.flutter-io.cn" + source: hosted + version: "0.0.1+2" + path_provider_macos: + dependency: transitive + description: + name: path_provider_macos + url: "https://pub.flutter-io.cn" + source: hosted + version: "0.0.4+3" + path_provider_platform_interface: + dependency: transitive + description: + name: path_provider_platform_interface + url: "https://pub.flutter-io.cn" + source: hosted + version: "1.0.2" + platform: + dependency: transitive + description: + name: platform + url: "https://pub.flutter-io.cn" + source: hosted + version: "2.2.1" plugin_platform_interface: dependency: transitive description: @@ -142,6 +184,13 @@ packages: url: "https://pub.flutter-io.cn" source: hosted version: "1.0.2" + process: + dependency: transitive + description: + name: process + url: "https://pub.flutter-io.cn" + source: hosted + version: "3.0.13" provider: dependency: transitive description: @@ -308,6 +357,13 @@ packages: url: "https://pub.flutter-io.cn" source: hosted version: "2.0.8" + xdg_directories: + dependency: transitive + description: + name: xdg_directories + url: "https://pub.flutter-io.cn" + source: hosted + version: "0.1.0" sdks: dart: ">=2.9.0-14.0.dev <3.0.0" - flutter: ">=1.12.13+hotfix.4 <2.0.0" + flutter: ">=1.12.13+hotfix.5 <2.0.0" diff --git a/pubspec.yaml b/pubspec.yaml index b3abdb2..474837e 100644 --- a/pubspec.yaml +++ b/pubspec.yaml @@ -29,6 +29,7 @@ dependencies: flutter_star: ^0.1.2 # 星星组件 shared_preferences: ^0.5.6+3 # xml 固化 url_launcher: ^5.4.2 # url + path_provider: ^1.6.11 intl: ^0.16.1 # 格式化 share: ^0.6.3+6 dev_dependencies: