企业网站推广价格,wordpress单页面网站怎么做,广州网站优化专家,wordpress微信防红插件需求#xff1a;同一个页面的两个不同的入口#xff0c;同一个控件的位置有变化#xff0c;显示引导页时对应这个控件的引导内容的位置也需要改变#xff1b;同时半透明底部显示出真实的页面内容。 这样的需要如果切图然后再往页面上贴位置无法精确的对准。 思路#xff1…需求同一个页面的两个不同的入口同一个控件的位置有变化显示引导页时对应这个控件的引导内容的位置也需要改变同时半透明底部显示出真实的页面内容。 这样的需要如果切图然后再往页面上贴位置无法精确的对准。 思路先绘制一层半透明遮罩覆盖页面在需要显示的控件位置绘制为全透明然后再将引导内容绘制在遮罩上面共有三层真实页面、透明遮罩。控件对应的那些说明内容,获取控件的位置确定在哪里全透明。
入口一进入时 入口二进入时
import package:common/sp_util.dart;
import package:jade/configs/CommonConfig.dart;
import package:jade/configs/PathConfig.dart;
import package:jade/utils/JadeColors.dart;
import package/jade/utils/Utils.dart;
import package:util/navigator_util.dart;
import package:flutter/material.dart;
import package:flutter_screenutil/flutter_screenutil.dart;
/*
* 引导页
* */
class SharedPurchaseGuidePage extends StatelessWidget {final double width;final double height;final Offset offset;const SharedPurchaseGuidePage({this.width,this.height,this.offset});overrideWidget build(BuildContext context) {return WillPopScope(child: Stack(children: [CustomPaint(size: Size(Utils().screenWidth(context), Utils().screenHeight(context)), // 自定义Widget的大小painter: MyCustomPainter(width,height,offset),),Positioned(left: offset.dx width,top: offset.dy,child: _leftView(context))],),onWillPop: () async false,);}_leftView(context){return Container(width: Utils().screenWidth(context) * 0.68,height: 210.w,padding: EdgeInsets.symmetric(vertical: 28.w),decoration: BoxDecoration(image: DecorationImage(image: AssetImage(PathConfig.imageSharedPurchaseGuideBg),fit: BoxFit.fill)),child: Column(crossAxisAlignment: CrossAxisAlignment.end,children: [Row(mainAxisAlignment: MainAxisAlignment.end,children: [Text(点击了解共享购,style: TextStyle(color: Colors.white,fontSize: 28.sp,fontWeight: FontWeight.w600)),SizedBox(width: 54.w),GestureDetector(child: Container(width: 100.w,height: 40.w,alignment: Alignment.center,margin: EdgeInsets.only(right: 20.w),decoration: BoxDecoration(color: Colors.white,borderRadius: BorderRadius.circular(20),),child: Text(知道了,style: TextStyle(color: JadeColors.blue,fontSize: 22.sp,fontWeight: FontWeight.w600),),),onTap: (){SpUtil.putBool(CommonConfig.havePostDetailSharedPurchaseGuide, true);NavigatorUtil.pop();},)],),Container(margin: EdgeInsets.only(right: 20.w,top: 26.w),child: Text(为促进交易本版块加入了独特的共\n享购功能与传统的团购与拼单很不\n一样欢迎体验,style: TextStyle(color: Colors.white,fontSize: 22.sp)))],),);}
}class MyCustomPainter extends CustomPainter {final double width;final double height;final Offset offset;const MyCustomPainter(this.width,this.height,this.offset);overridevoid paint(Canvas canvas, Size size) {//背景Paint backgroundPaint Paint()..color Colors.black45..style PaintingStyle.fill;//添加背景一个路径Path path Path()..addRect(Rect.fromLTWH(0, 0, size.width, size.height));//留白的圆角矩形路径Path holePath Path()// ..addRect(Rect.fromLTWH(offset.dx, offset.dy, width, height));..addRRect(RRect.fromRectAndRadius(Rect.fromLTWH(offset.dx-5, offset.dy, width5, height), Radius.circular(5)));Path combinedPath Path.combine(PathOperation.difference, path, holePath);canvas.drawPath(combinedPath, backgroundPaint);}overridebool shouldRepaint(covariant CustomPainter oldDelegate) {return false; // 不需要重绘因为我们只是绘制一次并没有动画或状态更改}
}GlobalKey _sharedPurchaseKey new GlobalKey();
//需要全透明的控件
Row(key: _sharedPurchaseKey,children: [Text(S.current.sharedPurchase,style: TextStyle(color: JadeColors.blue,fontSize: 24.sp,fontWeight: FontWeight.bold)),GestureDetector(child: Container(color: Colors.transparent,padding: EdgeInsets.all(4),child: Image.asset(PathConfig.iconQuestion,width: 34.w,height: 34.w),),onTap: (){NavigatorUtil.push(SharedPurchaseDesc());},),],),//获取共享购文字加问号的坐标跳转这个方法需要在页面加载完成后调用_getOffset() {if(_sharedPurchaseKey.currentContext ! null){_sharedPurchaseWidth _sharedPurchaseKey.currentContext.size.width;_sharedPurchaseHeight _sharedPurchaseKey.currentContext.size.height;_offset WidgetUtil.getWidgetLocalToGlobal(_sharedPurchaseKey.currentContext);bool sharedPurchaseGuide SpUtil.getBool(CommonConfig.havePostDetailSharedPurchaseGuide,defValue: false);if(!sharedPurchaseGuide){//跳转一个透明页面NavigatorUtil.pushTransparentRoute(SharedPurchaseGuidePage(width: _sharedPurchaseWidth,height: _sharedPurchaseHeight,offset: _offset));}}}///Get the coordinates of the widget on the screen.Widgets must be rendered completely.///获取widget在屏幕上的坐标,widget必须渲染完成static Offset getWidgetLocalToGlobal(BuildContext context) {RenderBox box context.findRenderObject();return box null ? Offset.zero : box.localToGlobal(Offset.zero);}
