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bsky-app
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Make view-selector swipes easier to trigger

zio/stable
Paul Frazee 2022-09-09 11:58:28 -05:00
parent e6ebb213cc
commit acaa8c5c11
1 changed files with 11 additions and 3 deletions
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14
src/view/com/util/ViewSelector.tsx
View File

@ -8,7 +8,8 @@ const HEADER_ITEM = {_reactKey: '__header__'}
const SELECTOR_ITEM = {_reactKey: '__selector__'} const SELECTOR_ITEM = {_reactKey: '__selector__'}
const STICKY_HEADER_INDICES = [1] const STICKY_HEADER_INDICES = [1]
const SWIPE_GESTURE_MAX_DISTANCE = 200 const SWIPE_GESTURE_MAX_DISTANCE = 200
const SWIPE_GESTURE_HIT_SLOP = {left: -20, top: 0, right: 0, bottom: 0} // we ignore the left 20 pixels to avoid conflicts with the page-nav gesture const SWIPE_GESTURE_VEL_TRIGGER = 2000
const SWIPE_GESTURE_HIT_SLOP = {left: -50, top: 0, right: 0, bottom: 0} // we ignore the left 20 pixels to avoid conflicts with the page-nav gesture
export function ViewSelector({ export function ViewSelector({
sections, sections,
@ -55,7 +56,11 @@ export function ViewSelector({
swipeGestureInterp.value = scaled swipeGestureInterp.value = scaled
}) })
.onEnd(e => { .onEnd(e => {
if (swipeGestureInterp.value >= 0.5) { const vx = e.velocityX
if (
swipeGestureInterp.value >= 0.5 ||
(vx < 0 && Math.abs(vx) > SWIPE_GESTURE_VEL_TRIGGER)
) {
// swiped to next // swiped to next
if (selectedIndex < sections.length - 1) { if (selectedIndex < sections.length - 1) {
// interp to the next item's position... // interp to the next item's position...
@ -66,7 +71,10 @@ export function ViewSelector({
} else { } else {
swipeGestureInterp.value = withTiming(0, {duration: 100}) swipeGestureInterp.value = withTiming(0, {duration: 100})
} }
} else if (swipeGestureInterp.value <= -0.5) { } else if (
swipeGestureInterp.value <= -0.5 ||
(vx > 0 && Math.abs(vx) > SWIPE_GESTURE_VEL_TRIGGER)
) {
// swiped to prev // swiped to prev
if (selectedIndex > 0) { if (selectedIndex > 0) {
// interp to the prev item's position... // interp to the prev item's position...