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feat: Support % length values in SVG CSS animations #9011

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Merged
MatiPl01 merged 4 commits into from
Feb 27, 2026
Merged

feat: Support % length values in SVG CSS animations #9011

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5c85d15
Replace SVGLength with CSSLength, which finally works
MatiPl01 Feb 25, 2026
124fed9
Remove SVGLength and make other necessary changes
MatiPl01 Feb 25, 2026
722f900
Add some more changes
MatiPl01 Feb 25, 2026
a6e3a83
Merge branch 'main' into @matipl01/replace-svg-length-with-css-length
wisniewskij Feb 27, 2026
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2 changes: 1 addition & 1 deletion apps/common-app/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@
"react-native-reanimated": "workspace:*",
"react-native-safe-area-context": "5.6.1",
"react-native-screens": "4.19.0-nightly-20251125-46052f31e",
"react-native-svg": "15.14.0",
"react-native-svg": "15.15.3",
Comment thread
MatiPl01 marked this conversation as resolved.
"react-native-worklets": "workspace:*",
"react-strict-dom": "0.0.54"
},
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6 changes: 3 additions & 3 deletions apps/common-app/src/apps/css/examples/animations/screens/animatedProperties/svg/Circle.tsx
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Expand Up @@ -62,7 +62,7 @@ export default function CircleExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the circle radius is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
r: 10,
Expand Down Expand Up @@ -106,7 +106,7 @@ export default function CircleExample() {
},
{
description:
'Interpolation between absolute and relative values is not supported in SVG, thus the circle position is changed abruptly',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
cx: 50,
Expand Down Expand Up @@ -145,7 +145,7 @@ export default function CircleExample() {
},
{
description:
'Interpolation between absolute and relative values is not supported in SVG, thus the circle position is changed abruptly',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
cy: 50,
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10 changes: 5 additions & 5 deletions apps/common-app/src/apps/css/examples/animations/screens/animatedProperties/svg/Ellipse.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ export default function EllipseExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the ellipse radii are changed **abruptly**',
'Smoothly interpolates between absolute and percentage values by resolving them to the same unit',
keyframes: {
from: {
rx: 10,
Expand Down Expand Up @@ -107,7 +107,7 @@ export default function EllipseExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the horizontal radius is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
rx: 10,
Expand Down Expand Up @@ -146,7 +146,7 @@ export default function EllipseExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the vertical radius is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
ry: 10,
Expand Down Expand Up @@ -190,7 +190,7 @@ export default function EllipseExample() {
},
{
description:
'Interpolation between absolute and relative values is not supported in SVG, thus the ellipse position is changed abruptly',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
cx: 50,
Expand Down Expand Up @@ -229,7 +229,7 @@ export default function EllipseExample() {
},
{
description:
'Interpolation between absolute and relative values is not supported in SVG, thus the ellipse position is changed abruptly',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
cy: 50,
Expand Down
8 changes: 4 additions & 4 deletions apps/common-app/src/apps/css/examples/animations/screens/animatedProperties/svg/Image.tsx
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Expand Up @@ -67,7 +67,7 @@ export default function ImageExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the X position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
x: 20,
Expand Down Expand Up @@ -107,7 +107,7 @@ export default function ImageExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the Y position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
y: 20,
Expand Down Expand Up @@ -159,7 +159,7 @@ export default function ImageExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the width is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
width: 60,
Expand Down Expand Up @@ -200,7 +200,7 @@ export default function ImageExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the height is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
height: 60,
Expand Down
8 changes: 4 additions & 4 deletions apps/common-app/src/apps/css/examples/animations/screens/animatedProperties/svg/Line.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ export default function LineExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the start X position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
x1: 20,
Expand Down Expand Up @@ -100,7 +100,7 @@ export default function LineExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the start Y position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
y1: 15,
Expand Down Expand Up @@ -144,7 +144,7 @@ export default function LineExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the end X position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
x2: 80,
Expand Down Expand Up @@ -183,7 +183,7 @@ export default function LineExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the end Y position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
y2: 85,
Expand Down
12 changes: 6 additions & 6 deletions apps/common-app/src/apps/css/examples/animations/screens/animatedProperties/svg/Rect.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -61,7 +61,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the X position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
x: 20,
Expand Down Expand Up @@ -101,7 +101,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the Y position is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
y: 20,
Expand Down Expand Up @@ -153,7 +153,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the width is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
width: 60,
Expand Down Expand Up @@ -194,7 +194,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the height is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
height: 60,
Expand Down Expand Up @@ -239,7 +239,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the horizontal radius is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
rx: 5,
Expand Down Expand Up @@ -279,7 +279,7 @@ export default function RectExample() {
},
{
description:
'Interpolation between absolute and relative values is **not supported** in SVG, thus the vertical radius is changed **abruptly**',
'Smoothly interpolates between an absolute and a percentage value by resolving them to the same unit',
keyframes: {
from: {
ry: 5,
Expand Down
28 changes: 28 additions & 0 deletions ...mon-app/src/apps/css/examples/animations/screens/animatedProperties/svg/common/Stroke.tsx
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Expand Up @@ -171,6 +171,34 @@ export default function StrokeExample() {
},
title: 'Array value with different number of elements',
},
{
keyframes: {
from: {
strokeDasharray: ['10%', '5%'],
},
to: {
strokeDasharray: ['25%', '12%'],
},
},
props: {
strokeWidth: 5,
},
title: 'Percentage values',
},
{
keyframes: {
from: {
strokeDasharray: [8, '15%'],
},
to: {
strokeDasharray: ['5%', 5],
},
},
props: {
strokeWidth: 5,
},
title: 'Mixed values (number + percentage)',
},
],
title: 'strokeDasharray',
},
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2 changes: 1 addition & 1 deletion docs/docs-reanimated/package.json
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Expand Up @@ -57,7 +57,7 @@
"react-native": "0.83.0",
"react-native-gesture-handler": "2.28.0",
"react-native-reanimated": "4.2.0-nightly-20251017-235c127fd",
"react-native-svg": "15.14.0",
"react-native-svg": "15.15.3",
"react-native-web": "0.21.2",
"react-native-worklets": "0.7.0-nightly-20251015-0297d2990",
"source-map": "0.7.4",
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2 changes: 1 addition & 1 deletion docs/docs-worklets/package.json
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Expand Up @@ -58,7 +58,7 @@
"react-native": "0.83.0",
"react-native-gesture-handler": "2.28.0",
"react-native-reanimated": "4.2.0-nightly-20251017-235c127fd",
"react-native-svg": "15.14.0",
"react-native-svg": "15.15.3",
"react-native-web": "0.21.2",
"react-native-worklets": "0.7.0-nightly-20251015-0297d2990",
"source-map": "0.7.4",
Expand Down
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