I'm new to Flutter! I need to realize the following shape as shown in the figure

And here is the code

SizedBox(
        height: 80,
        child: Stack(
          children: [
            Align(
              alignment: Alignment.bottomCenter,
              child: Container(
                color: Colors.grey.shade200,
                height: 50,
                child: Row(
                  children: [
                    const Spacer(flex: 1,),
                    Row(
                      children: [
                        const Text('Ti piace?'),
                        IconButton(icon: const Icon(CupertinoIcons.heart),
                        onPressed: (){
                          //do what you want
                        },),
                        const Text('0'),
                      ],
                    ),
                    const Spacer(flex: 2,),
                    Row(
                      children: [
                        const Text('0'),
                        IconButton(icon: const Icon(Icons.mail_outline),
                        onPressed: (){
                          //do what you want
                        },),
                        const Text('Contattami'),
                      ],
                    ),
                    const Spacer(flex: 1,),
                  ]
                ),
              ),
            ),
            Align(
              alignment: Alignment.center,
              child: RotationTransition(
                turns: const AlwaysStoppedAnimation(45 / 360),
                child: Container(
                  height: 45,
                    width: 45,
                    decoration: const BoxDecoration(
                        color: Colors.white,
                      boxShadow: [
                        BoxShadow(color: Colors.grey,spreadRadius: 2,blurRadius: 5),
                      ]
                    ),
                    child: RotationTransition(
                        turns: const AlwaysStoppedAnimation(-45 / 360),
                        child: IconButton(onPressed: (){}, icon: const Icon(Icons.share)))),
              ),
            )
          ],
        ),
      ),