57 lines
2.0 KiB
Dart
57 lines
2.0 KiB
Dart
import 'package:cpnav/pages/pass_track/view.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:get/get.dart';
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import 'aimPointer.dart';
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final SightController controller = Get.put(SightController());
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class SightGview extends GetView<SightController> {
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const SightGview({super.key});
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@override
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Widget build(BuildContext context) {
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final Size size = MediaQuery.of(context).size;
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return Obx(() => Positioned(
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left: controller.sightOffset.value.dx,
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top: controller.sightOffset.value.dy,
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width: size.width / 5 * 1.5,
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height: size.width / 5 * 1.5,
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child: GestureDetector(
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onScaleStart: (details) {
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// 正确计算初始偏移量：当前手指位置与卡片当前位置之间的差值
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controller.sightInit.value =
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details.localFocalPoint - controller.sightOffset.value;
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},
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onScaleUpdate: (details) {
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// 使用初始偏移量来更新卡片的位置
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controller.sightOffset.value =
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details.localFocalPoint - controller.sightInit.value;
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},
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child: Visibility(
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visible: mapcontroller.isCardVisible.value, // 控制可见性
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child: Container(
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decoration: const BoxDecoration(color: Colors.transparent),
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child: Stack(children: [
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const Card(
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elevation: 5.0,
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child: SightView(),
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),
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Positioned(
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right: 0,
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top: 0,
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child: IconButton(
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icon: const Icon(Icons.close),
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onPressed: () {
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// 关闭按钮的回调函数
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mapcontroller.isCardVisible.value = false;
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},
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),
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),
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]),
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)))));
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}
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}
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