Questions tagged [custom-painter]
53 questions
1
vote
1 answer
Get the height of a widget in a List
I'm working on a CustomPainter widget that receives a List as an argument.
I would like to know the size of each of my Widget so I can adjust my paint.
The List will be a user-selected List so I can't use GlobalKeys here.
I watched…
BLKKKBVSIK
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Custom navigation drawer flutter
I am trying to create custom navigation drawer just like bottom navigation but in navigation drawer.I am not able to achieve the view we want.I tried using custom painter but i am not expert in it.Suggest some websites where i can learn custom…
siva
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Flutter CustomPainter Resize
So I've been trying to resize a CustomPainter and keep the look as if it was pixel art, but I haven't been able to make it.
// for example, I have this widget, that sets an specific size to a CustomPainter,
// in this case width and height are 16
…
Gustavo Guzman
- 136
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Flutter CustomPainter: Keep path although repaint should't be done
I have a CustomPainter like the one in the example. Where I don't always need to repaint, but I need to keep the previously drawn path because it is used in hitTest. It is also not a solution to create the path in the constructor because the Size…
Alonsormm
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How to make a Flutter painter APP with layers
I want to make a painter APP with layers like PhotoShop, and I choose Flutter as the language.
The problem is that I don't know how to make the layers with high performance, because I have tried CustomPainter following online tutorials and open…
wey
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1 answer
Flutter - Center a CustomPaint Shape
I am building a CustomPaint heart shape that has animation on the size. An optimal state is the cirle GIF below. However, what i have been able to achieve so far is the heart GIF below.
Here is the code for my CustomPaint:
class MyPainter extends…
iampapagray
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Independent Effect of Custom Paint widget in flutter
When I click on List view item it changes. I want when index changes custom paint effect of previous image save and want to move this paint part only to next widget if user selects apply changes to "yes". When I change by clicking paint and eraser…
Nimra
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How can I change the color of a drawn object using CustomPainter in Flutter?
Currently I have a CustomPainter that is using the touchable flutter package
class MapPainter extends CustomPainter {
final BuildContext context;
MapPainter(this.context);
@override
void paint(Canvas canvas, Size size) {
var myCanvas =…
Landon Pattison
- 25
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0
votes
1 answer
How to create a bottom navigation bar with Custom Painter in Flutter?
How can I create a bottom navigation bar with a CustomPainter like this?
Especially the FloatingActionButton notch / edges.
Update: I did it using custom FloatingActionButtonLocation
class CustomFABLocation extends FloatingActionButtonLocation {
…
Aljan
- 13
- 4
0
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1 answer
Prevent background rebuidling when calling emit()
I have a background that is drawn using Flutter custom painter and it uses the Random() function to draw shapes at random positions (ex.: stars), also I have a widget that has a timer, this timer ticks every second and every second I use emit()…
Saif
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2 answers
How can i call variables in my custompainter class and used it in my main
I have 2 variables ( midX and midY which are the middle point position of the x and y axis) in the custom painter class that i want to call from my main program to do something with the variables value(e.g. printing the values) Methods that I have…
Tan K
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Flutter Canvas Set Frame Rate
I have a custom painter that I'm using to build a small game engine for fun. I have the following code that is supposed to call the draw function of my custom painter 60 times per second:
SceneRenderChangeNotifier repaintNotifer =…
Hans Donkersloot
- 123
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I try to make custom progress indicator with Custom painter but painter is not updating the value
I try to make custom progress indicator with Custom painter but painter is not updating the value
help:
can you help me to use custom painter?
also can we change circle pointer to square box with arrow pointing to progress
class MyCsPaint extends…
Kundan mandal
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1 answer
manage state for small part of screen
I have screen which contains two main parts the upper part is dynamic and the lower part is static so my question is I want to rebuild only the upper part every second using BLoC, here's the code of my upper part:
Expanded(
flex:…
Saif
- 46
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0
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1 answer
How to make attached image using Custom Painter in flutter
I'm trying to make custom shape same as attached image. How can i make this custom shape using custom Painter
