init project

example/lib/widgets/amap_gridview.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+
+class AMapGradView extends StatefulWidget {
+  ///子控件列表
+  final List<Widget> childrenWidgets;
+
+  ///一行的数量
+  final int? crossAxisCount;
+
+  ///宽高比
+  final double? childAspectRatio;
+
+  AMapGradView(
+      {Key? key,
+      this.crossAxisCount,
+      this.childAspectRatio,
+      required this.childrenWidgets})
+      : super(key: key);
+  @override
+  _GradViewState createState() => _GradViewState();
+}
+
+class _GradViewState extends State<AMapGradView> {
+  @override
+  Widget build(BuildContext context) {
+    return GridView.count(
+        primary: false,
+        physics: new NeverScrollableScrollPhysics(),
+        //水平子Widget之间间距
+        crossAxisSpacing: 1.0,
+        //垂直子Widget之间间距
+        mainAxisSpacing: 0.5,
+        //一行的Widget数量
+        crossAxisCount: widget.crossAxisCount ?? 2,
+        //宽高比
+        childAspectRatio: widget.childAspectRatio ?? 4,
+        children: widget.childrenWidgets,
+        shrinkWrap: true);
+  }
+}