flutter运行报错RenderStack object was given an infinite size during layout.

不能在row或者column里面直接使用stack，需要在stack外面包裹一个大小确定的Container
错误写法为：

Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text('身份证照片(选填)',style: TextStyle(color: Color.fromRGBO(51, 51, 51, 1),fontSize: 14.sp),),
          SizedBox(height: 6.h,),
          Stack(
              children: [
                Positioned(child: Image.asset('images/img1@3x.png'),left: 0,width: 160.w,top: 0,height: 100.h,),
                Positioned(child: IconButton(icon: Image.asset('images/paishe@3x.png'),onPressed: (){},),left: 58.w,top: 28.h,width: 44.w,height: 44.w,),
                Positioned(child: Image.asset('images/img2@3x.png'),right: 0,width: 160.w,top: 0,height: 100.h,),
                Positioned(child: IconButton(icon: Image.asset('images/paishe@3x.png'),onPressed: (){},),right: 58.w,top: 28.h,width: 44.w,height: 44.w,)
              ],
            )
        ],
      )

正确写法：

Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text('身份证照片(选填)',style: TextStyle(color: Color.fromRGBO(51, 51, 51, 1),fontSize: 14.sp),),
          SizedBox(height: 6.h,),
          Container(
            width: 335.w,
            height: 120.h,
            child: Stack(
              children: [
                Positioned(child: Image.asset('images/img1@3x.png'),left: 0,width: 160.w,top: 0,height: 100.h,),
                Positioned(child: IconButton(icon: Image.asset('images/paishe@3x.png'),onPressed: (){},),left: 58.w,top: 28.h,width: 44.w,height: 44.w,),
                Positioned(child: Image.asset('images/img2@3x.png'),right: 0,width: 160.w,top: 0,height: 100.h,),
                Positioned(child: IconButton(icon: Image.asset('images/paishe@3x.png'),onPressed: (){},),right: 58.w,top: 28.h,width: 44.w,height: 44.w,)
              ],
            ),
          )
        ],
      )

flutter运行报错RenderStack object was given an infinite size during layout.

推荐阅读更多精彩内容