android-canvas Questions
2
Solved
I need to draw a rounded square, something like drawRoundRect, but only the outline.
something like this.
this image is drawn by hand, as I said I need it to look like drawRoundRect but without ou...
Diverticulum asked 13/7, 2022 at 23:20
4
Solved
background
i have a master bitmap that i need to draw on it other bitmaps.
the master bitmap has some semi-transparent pixels (pixels with variant values for the alpha channel) , so that the othe...
Comprehend asked 9/7, 2013 at 15:27
3
Solved
So I use Canvas.drawText to draw some string on a Canvas. The issue is that I want to draw a rectangle before it so that the text appears centred onto the rectangle. But I hit a real problem. The s...
Fukien asked 11/6, 2011 at 17:35
5
Solved
This is how I draw Bitmap on Canvas in my Android app:
canvas.save();
canvas.scale(scale, scale, x, y);
canvas.drawBitmap(bitmap, x, y, null);
canvas.restore();
However the Bitmap is not scaled ...
Rooke asked 27/11, 2010 at 21:48
8
Solved
What I want to do? (blue will be changed as white)
What I did?
I have found a class which extends TextView that able to outline textview very close to what I want. The problem is that I could not...
Foetid asked 26/2, 2013 at 14:36
4
Solved
I am using canvas.drawLine to draw some line in android but the lines are too sharp but i need a curved edges
Here the 1 is what i have and 2 is what i want to achieve, means a line with curved ed...
Florafloral asked 29/12, 2013 at 7:14
1
Solved
I was trying to draw text inside circle and square in Jetpack Compose and I encounter this issue.
The text holder/container (I am not sure what we call it), the light red rectangle, which holds the...
Depredate asked 23/4, 2023 at 18:11
1
Solved
I am trying to draw text inside a circle in Jetpack Compose.
I drew the circle with the center being the center of the canvas.
Now I want to draw text exactly at the center of the circle.
The drawT...
Scrutineer asked 23/4, 2023 at 2:48
3
I am able to draw a text on canvas on motion view now the problem is that when i draw text & go for the next draw on same canvas my draw text is getting disappear i mean screen is getting redra...
Ridenhour asked 27/11, 2014 at 12:16
2
Solved
I need to implement a donut chart with a legend for each sector in the center of the slice. I use compose and there are no problems with the chart itself, but I don't understand how to draw text in...
Blur asked 31/3, 2023 at 22:21
1
Solved
I have drawn a heart using path.cubicTo() method
Canvas(modifier = Modifier.size(100.dp)) {
val path = Path()
path.moveTo(0f, size.height / 3)
path.cubicTo(0f, 0f, size.width / 2, 0f, size.widt...
Cassidy asked 9/3, 2023 at 5:55
8
Solved
Is there a method which returns the width ( in pixels ) of a text to be drawn on an Android canvas using the drawText() method according to the Paint used to draw it?
Xylo asked 15/7, 2010 at 15:45
6
I need to draw three circles in my fragment ,the circles differ in size, I refer this link
The result i obtained is this
This is my XML Code : UPDATED
<?xml version="1.0" encoding="utf-8"?...
Racine asked 17/1, 2014 at 4:57
1
I am trying to achieve the blur effect like highlighted in this post:
I'm using Jetpack Compose:
@Composable
fun MainApp() {
val linearGradientBrush = Brush.linearGradient(
colors = listOf(
Col...
Denesedengue asked 26/1, 2022 at 15:45
1
Solved
Assume I have the following code in compose below.
A background magenta circle with a text on top with a default black color.
I would like to blend the text color to White when it is above the cir...
Supertax asked 7/12, 2022 at 22:9
19
Solved
A hopefully quick question, but I can't seem to find any examples... I'd like to write multi-line text to a custom View via a Canvas, and in onDraw() I have:
...
String text = "This is\nmulti-line...
Woolsey asked 20/7, 2011 at 4:21
1
Has anyone seen anything like this?
I'm drawing some rectangles on the canvas with the following code.
int col = pad.getColor();
paint.setColor(col);
Log.d("XXX","col " + Color....
Bryant asked 23/11, 2022 at 1:36
3
Solved
Basically, I have a rectangular bitmap and want to create a new Bitmap with squared dimensions which will contain the rectangular bitmap inside of it.
So, for example, if the source bitmap has wid...
Christyna asked 2/11, 2013 at 16:29
6
My application work very well on nougat emulator and many devices, but i found this exception in google play crash reporter, I don't know why it happened, The exception causes with nougat devices +...
Infectious asked 5/7, 2017 at 7:9
3
Solved
I'm using Jetpack Compose to implement my requirement of drawing a 'Gradual growing line', i.e a line that starts from a specified start and point and gradually 'grows' until it reaches a specified...
Poser asked 9/4, 2021 at 16:20
0
I have a Box layout in which I have a canvas composable that draws a circle animation. I also have another Test Composable in which I would be drawing a few other shapes(Denoted in Grey color in th...
Eelworm asked 9/8, 2022 at 20:57
3
Solved
I'm trying to apply a visual effect to a viewgroup. My idea is to grab a bitmap of the viewgroup, shrink it down, expand it back up, and draw it over the viewgroup to give it a blocky, low quality ...
Barcroft asked 12/11, 2012 at 15:33
1
Could someone explain how can i draw this lines using jetpack compose & canvas?
Strouse asked 12/6, 2022 at 12:51
11
Solved
I am creating a pixel-hunting game. So my activity shows an ImageView. And I want to create a hint "show me where is the object". For this I need to blur whole image except a circle around a point ...
Catinacation asked 13/11, 2013 at 7:27
2
Solved
im trying to learn drawing bitmap on canvas with the usage of
drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint);
Because i need one of my pngs to increase its size nearly every frame, i man...
Giffard asked 12/4, 2013 at 18:49
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