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limit angular tolerance of gesture detection (see #59)

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Josia Pietsch 2024-10-22 12:41:52 +02:00
parent 5c28625b2a
commit 6cabcf51bd
Signed by: jrpie
GPG key ID: E70B571D66986A2D
1 changed files with 6 additions and 3 deletions
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9
app/src/main/java/de/jrpie/android/launcher/ui/HomeActivity.kt
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@ -28,6 +28,7 @@ import kotlin.concurrent.fixedRateTimer
import kotlin.math.abs import kotlin.math.abs
import kotlin.math.max import kotlin.math.max
import kotlin.math.min import kotlin.math.min
import kotlin.math.tan
/** /**
@ -203,13 +204,15 @@ class HomeActivity : UIObject, AppCompatActivity(),
val threshold = ViewConfiguration.get(this).scaledTouchSlop val threshold = ViewConfiguration.get(this).scaledTouchSlop
var gesture = if (abs(diffX) > abs(diffY)) { // horizontal swipe val angularThreshold = tan(Math.PI / 6)
var gesture = if (angularThreshold * abs(diffX) > abs(diffY)) { // horizontal swipe
if (diffX > threshold) if (diffX > threshold)
Gesture.SWIPE_LEFT Gesture.SWIPE_LEFT
else if (diffX < -threshold) else if (diffX < -threshold)
Gesture.SWIPE_RIGHT Gesture.SWIPE_RIGHT
else null else null
} else { // vertical swipe } else if (angularThreshold * abs(diffY) > abs(diffX)){ // vertical swipe
// Only open if the swipe was not from the phones top edge // Only open if the swipe was not from the phones top edge
// TODO: replace 100px by sensible dp value (e.g. twice the height of the status bar) // TODO: replace 100px by sensible dp value (e.g. twice the height of the status bar)
if (diffY < -threshold && e1.y > 100) if (diffY < -threshold && e1.y > 100)
@ -217,7 +220,7 @@ class HomeActivity : UIObject, AppCompatActivity(),
else if (diffY > threshold) else if (diffY > threshold)
Gesture.SWIPE_UP Gesture.SWIPE_UP
else null else null
} } else null
if (doubleActions && bufferedPointerCount > 1) { if (doubleActions && bufferedPointerCount > 1) {
gesture = gesture?.let(Gesture::getDoubleVariant) gesture = gesture?.let(Gesture::getDoubleVariant)