olemd/tilt-shift-camera
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Fix landscape image rotating opposite to device

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OrientationDetector mapped the OrientationEventListener angle to
Surface.ROTATION_* with 90 and 270 swapped relative to the CameraX
docs example. The angle reports the device's physical clockwise
rotation, whereas Surface.ROTATION_* describes the screen's logical
rotation (opposite direction), so the values must be inverted.

Symptom: rotating the phone clockwise rotated the live preview counter-
clockwise (and vice versa), instead of keeping world-up at screen-up.
The bug was previously masked because the only consumer of the value
(deviceRotation in capturePhoto) is unused — the live preview commit
(d321f07) wired this same value into CameraX's setTargetRotation, which
exposed the inverted mapping.

Bump to 1.1.7.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ole-Morten Duesund 2026-05-11 13:51:17 +02:00
commit 5eb476a059
2 changed files with 10 additions and 4 deletions
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10
app/src/main/java/no/naiv/tiltshift/util/OrientationDetector.kt
View file

@ -24,11 +24,17 @@ class OrientationDetector(private val context: Context) {
override fun onOrientationChanged(orientation: Int) {
if (orientation == ORIENTATION_UNKNOWN) return
// OrientationEventListener reports the device's physical rotation
// (clockwise from natural). Surface.ROTATION_* describes the screen's
// logical rotation, which is the opposite direction — so device tilted
// 90° CW (orientation ≈ 90, "left side at top") maps to ROTATION_270,
// and 90° CCW (orientation ≈ 270) maps to ROTATION_90. Matches the
// CameraX docs example for setTargetRotation.
val rotation = when {
orientation >= 315 || orientation < 45 -> Surface.ROTATION_0
orientation >= 45 && orientation < 135 -> Surface.ROTATION_90
orientation >= 45 && orientation < 135 -> Surface.ROTATION_270
orientation >= 135 && orientation < 225 -> Surface.ROTATION_180
else -> Surface.ROTATION_270
else -> Surface.ROTATION_90
}
if (rotation != lastRotation) {

4
version.properties
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@ -1,4 +1,4 @@
versionMajor=1
versionMinor=1
versionPatch=6
versionCode=8
versionPatch=7
versionCode=9