Mixing
Positioned Widgets on SingleChildScrollView - Differences between smartphones - Flutter
I'm developing a small game with a scrollable map and levels.
I have a scrollable map in a SingleChildScrollView.
I want to put my Positioned Widgets (my levels) on my map.
I used this formula to find map resolution: width_map/height_map.
I used this formula to find left distance: MediaQuery_width * resolution_map * custom_width_position.
I used this formula to find height distance: MediaQuery_height * resolution_map * custom_height_position.
Positioned(
left: width * sizeMap * level['width'],
top: height * sizeMap * level['height'],
child: ...
)
This formula with different smartphones has different result => the levels are not on the identical place on map (they are near but places not corresponding).
Any ideas?
Thanks in advance.
scroll dart
flutter flutter-layout flutter-positioned asked Jan 1 at 23:23
CarloCarlo
6681926
add a comment |
I'm developing a small game with a scrollable map and levels.
I have a scrollable map in a SingleChildScrollView.
I want to put my Positioned Widgets (my levels) on my map.
I used this formula to find map resolution: width_map/height_map.
I used this formula to find left distance: MediaQuery_width * resolution_map * custom_width_position.
I used this formula to find height distance: MediaQuery_height * resolution_map * custom_height_position.
Positioned(
left: width * sizeMap * level['width'],
top: height * sizeMap * level['height'],
child: ...
)
This formula with different smartphones has different result => the levels are not on the identical place on map (they are near but places not corresponding).
Any ideas?
Thanks in advance.
scroll dart
flutter flutter-layout flutter-positioned asked Jan 1 at 23:23
CarloCarlo
6681926
Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53
add a comment |
I'm developing a small game with a scrollable map and levels.
I have a scrollable map in a SingleChildScrollView.
I want to put my Positioned Widgets (my levels) on my map.
I used this formula to find map resolution: width_map/height_map.
I used this formula to find left distance: MediaQuery_width * resolution_map * custom_width_position.
I used this formula to find height distance: MediaQuery_height * resolution_map * custom_height_position.
Positioned(
left: width * sizeMap * level['width'],
top: height * sizeMap * level['height'],
child: ...
)
This formula with different smartphones has different result => the levels are not on the identical place on map (they are near but places not corresponding).
Any ideas?
Thanks in advance.
scroll dart
flutter flutter-layout flutter-positioned asked Jan 1 at 23:23
CarloCarlo
6681926
I'm developing a small game with a scrollable map and levels.
I have a scrollable map in a SingleChildScrollView.
I want to put my Positioned Widgets (my levels) on my map.
I used this formula to find map resolution: width_map/height_map.
I used this formula to find left distance: MediaQuery_width * resolution_map * custom_width_position.
I used this formula to find height distance: MediaQuery_height * resolution_map * custom_height_position.
Positioned(
left: width * sizeMap * level['width'],
top: height * sizeMap * level['height'],
child: ...
)
This formula with different smartphones has different result => the levels are not on the identical place on map (they are near but places not corresponding).
Any ideas?
Thanks in advance.
scroll dart
flutter flutter-layout flutter-positioned scroll dart
flutter flutter-layout flutter-positioned asked Jan 1 at 23:23
CarloCarlo
6681926
asked Jan 1 at 23:23
CarloCarlo
6681926
asked Jan 1 at 23:23
CarloCarlo
6681926
asked Jan 1 at 23:23
CarloCarlo
6681926
asked Jan 1 at 23:23
CarloCarlo
6681926
6681926
Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53
add a comment |
Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53
Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53
add a comment |
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Have you tried using debugPaintSizeEnabled = true; p.s. you need to add import 'package:flutter/rendering.dart';
– guy
Jan 3 at 11:15
Thanks guy. I've understand my error. Map are different on same devices because I didn't manage width of my image.
– Carlo
Jan 8 at 22:53