我必须将参数从float按钮传递给Future异步函数我的代码喜欢FloatingActionButton(onPressed:getImageFromCam,tooltip:'PickImage',child:Icon(Icons.add_a_photo),),和FuturegetImageFromCam()async{//forcameravarimage=awaitImagePicker.pickImage(source:ImageSource.camera);setState((){_image=image;});}它是多个按钮，所以我必须将索引传递给异步函数。谁能帮忙解决这个

我必须将参数从float按钮传递给Future异步函数我的代码喜欢FloatingActionButton(onPressed:getImageFromCam,tooltip:'PickImage',child:Icon(Icons.add_a_photo),),和FuturegetImageFromCam()async{//forcameravarimage=awaitImagePicker.pickImage(source:ImageSource.camera);setState((){_image=image;});}它是多个按钮，所以我必须将索引传递给异步函数。谁能帮忙解决这个