Rounded corners Image inside PageView keeping ratio Flutter - flutter

Question

I have a PageView with images list inside. I want to keep the image ratio and set a rounded corners to them.
Usually I had no problem to clip image inside simple list or single image.
But in this case, the ClipRRect is not wrapping the image and when I'm setting size to red Container nothing happened.
Result :
Code :
double maxiHeight = 250;
List<Widget> postList = [];
#override
void initState() {
for(Post p in Model.instance.postList) {
postList.add(post(p));
}
super.initState();
}
#override
Widget build(BuildContext context) {
return Container(
height: maxiHeight,
child: PageView(
controller: PageController(viewportFraction: 0.5),
children: postList
),
);
}
Widget post(Post post) {
return ClipRRect(
borderRadius: BorderRadius.circular(20),
child: Container(
margin: EdgeInsets.only(right: 10),
color: Colors.red,
child: Image.network(post.thumb, height: 50)
)
);
}
I want to keep my image ratio.
What am I missing here ?

Answer 1

About your code snippet, you are providing margin right 1st then wrapping with ClipRRect. Here the main Container is getting its size and then using margin, after wrapping with ClipRRect it is avoiding 10px from right to Clip. And this is how we are getting current output.
But we want padding outside The Container and without border radius. Means after decorating the image, just provide some padding. You can follow this and using fit: BoxFit.cover will cover the widget size.
Center(
child: Padding(
padding: EdgeInsets.only(right: 10),
child: ClipRRect(
borderRadius: BorderRadius.circular(20),
child: Container(
// margin: EdgeInsets.only(right: 10),// not here
color: Colors.red,
child: Image.network(
// post.thumb,
"https://unsplash.it/1440/3040?random",
// fit: BoxFit.fitHeight,
height: 150,
),
),
),
),
),

Answer 2

With the following modified code it should work:
#override
Widget build(BuildContext context) {
return Center(
child: SizedBox(
height: 500.0,
child: ListView(scrollDirection: Axis.horizontal, children: postList),
),
);
}
Widget post(String uri) {
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 5.0),
child: ClipRRect(
borderRadius: BorderRadius.circular(20),
child: Image.network(uri, fit: BoxFit.fitHeight)
),
);
}

Answer 3

Try to add BoxFit.cover to Image.network widget
Widget post(Post post) {
return ClipRRect(
borderRadius: BorderRadius.circular(20),
child: Container(
margin: EdgeInsets.only(right: 10),
color: Colors.red,
child: Image.network(post.thumb, height: 50, fit: BoxFit.cover,),
)
);
}