hyzp_ybqx-Commit135：为了支持ios版在百度地图中显示文本图标，已经替换使用my_flutter_bmfmap-1.0.2插件，安卓版编译运行正常

2022-05-02 14:18:18 +08:00
parent 897adb2683
commit c4b9c508e0
207 changed files with 23733 additions and 5 deletions
@@ -0,0 +1,146 @@
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:path/path.dart' as mypath;
+import 'dart:ui' as ui;
+
+Future getIconWidget(String name) async {
+  // print("name length = ${name.length}");
+  double _widthBtn = name.length * 40.0;
+  double _text_height = 45;
+  double _icon_width = 40;
+  double _icon_height = 65;
+  double _edge = 16;
+
+  return Container(
+    width: _widthBtn * 1.5 + _icon_width,
+    height: _text_height + _icon_height,
+    color: Colors.transparent,
+    child: Column(
+      children: [
+        Row(
+          textDirection: TextDirection.ltr,
+          children: [
+            SizedBox(width: _widthBtn * 0.5 + _icon_width),
+            Container(
+              // margin: EdgeInsets.only(left: _widthBtn * 0.5),
+              // padding: EdgeInsets.only(left: _widthBtn * 0.5),
+              width: _widthBtn,
+              height: _text_height,
+              color: Colors.yellow,
+              child: Directionality(
+                  textDirection: TextDirection.ltr,
+                  child: Text(name,
+                      textAlign: TextAlign.center,
+                      style: TextStyle(
+                          color: Colors.black, fontWeight: FontWeight.bold, fontSize: 36.0))),
+            ),
+          ],
+        ),
+        Container(
+          width: _widthBtn,
+          height: _icon_height,
+          color: Colors.transparent,
+          child: Directionality(
+            textDirection: TextDirection.ltr,
+            child: RichText(
+              text: TextSpan(style: TextStyle(color: Colors.black, fontSize: 36.0), children: [
+                WidgetSpan(
+                    child: IconTheme(
+                  data: IconThemeData(size: 64, color: Colors.red),
+                  child: Icon(
+                    new IconData(0xe60b, fontFamily: 'myfont', matchTextDirection: true),
+                  ),
+                )),
+                // TextSpan(text: "\n白塔山公园", style: TextStyle(color: Colors.black, fontSize: 36.0)),
+              ]),
+              textAlign: TextAlign.center,
+            ),
+          ),
+        ),
+      ],
+    ),
+  );
+}
+
+Future createDir(String dirName) async {
+  final appDir = await getApplicationDocumentsDirectory();
+  final myDir = Directory('${appDir.path}/$dirName');
+
+  // 查看目录是否存在
+  bool isExist = await myDir.exists();
+  if (!isExist) {
+    myDir.create(recursive: true);
+  }
+  return myDir.path;
+}
+
+Future<void> saveImage(String dirName, String fileName, ByteData image) async {
+  final appDir = await getApplicationDocumentsDirectory();
+  final myDir = Directory('${appDir.path}/$dirName');
+
+  // 查看目录是否存在
+  bool isExist = await myDir.exists();
+  if (!isExist) {
+    myDir.create(recursive: true);
+  }
+
+  // final myDir = await Directory('${appDir.path}/$dirName').create(recursive: true);
+  final localPath = mypath.join(myDir.path, fileName);
+  print('localPath = $localPath');
+  // localPath = /data/user/0/com.example.hyzp_yibin_bmfmap/app_flutter/myIcons/myIcon1.png
+  File(localPath).writeAsBytesSync(image.buffer.asInt8List());
+}
+
+Future<ByteData> widgetToImage(Widget widget,
+    {Alignment alignment = Alignment.center,
+    Size size = const Size(double.maxFinite, double.maxFinite),
+    double devicePixelRatio = 1.0,
+    double pixelRatio = 1.0}) async {
+  RenderRepaintBoundary repaintBoundary = RenderRepaintBoundary();
+
+  RenderView renderView = RenderView(
+    child: RenderPositionedBox(alignment: alignment, child: repaintBoundary),
+    configuration: ViewConfiguration(
+      size: size,
+      devicePixelRatio: devicePixelRatio,
+    ),
+    window: ui.window,
+  );
+
+  PipelineOwner pipelineOwner = PipelineOwner();
+  pipelineOwner.rootNode = renderView;
+  renderView.prepareInitialFrame();
+
+  BuildOwner buildOwner = BuildOwner();
+  buildOwner.focusManager = FocusManager();
+  RenderObjectToWidgetElement rootElement = RenderObjectToWidgetAdapter(
+    container: repaintBoundary,
+    child: widget,
+  ).attachToRenderTree(buildOwner);
+  buildOwner.buildScope(rootElement);
+  buildOwner.finalizeTree();
+
+  pipelineOwner.flushLayout();
+  pipelineOwner.flushCompositingBits();
+  pipelineOwner.flushPaint();
+
+  ui.Image image = await repaintBoundary.toImage(pixelRatio: pixelRatio);
+  // E/flutter (10823): [ERROR:flutter/flow/layers/transform_layer.cc(24)] TransformLayer is constructed with an invalid matrix.
+  // E/flutter (10823): [ERROR:flutter/flow/layers/transform_layer.cc(24)] TransformLayer is constructed with an invalid matrix.
+  ByteData byteData = await image.toByteData(format: ui.ImageByteFormat.png);
+
+  return byteData;
+}
+
+// read image file from path
+Future<File> getLocalFile(String filename) async {
+  String dir = (await getApplicationDocumentsDirectory()).path;
+  final directoryName = "myIcons";
+  File file = new File('$dir/$directoryName/$filename');
+  return file;
+}