gitea/legado
gitea/legado
1
1
Fork 0
mirror of https://github.com/gedoor/legado.git synced 2024-07-19 01:17:25 +08:00
Code Issues Packages Projects Releases Wiki Activity

滚动阅读时,多指触摸造成闪烁的问题

Browse Source
This commit is contained in:
jaredtech 2023-03-30 15:31:30 +08:00
parent ed35e1749f
commit 982a0d8e45
2 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
app/src/main/java/io/legado/app/ui/book/read/page/ReadView.kt
View File

@ -27,10 +27,7 @@ import io.legado.app.ui.book.read.page.entities.TextPage
import io.legado.app.ui.book.read.page.entities.TextPos
import io.legado.app.ui.book.read.page.provider.ChapterProvider
import io.legado.app.ui.book.read.page.provider.TextPageFactory
import io.legado.app.utils.activity
import io.legado.app.utils.invisible
import io.legado.app.utils.screenshot
import io.legado.app.utils.showDialogFragment
import io.legado.app.utils.*
import java.text.BreakIterator
import java.util.*
import kotlin.math.abs
@ -184,6 +181,15 @@ class ReadView(context: Context, attrs: AttributeSet) :
}
}
//在多点触控时，事件不走ACTION_DOWN分支而产生的特殊事件处理
if (event.actionMasked == MotionEvent.ACTION_POINTER_DOWN){
//当多个手指同时按下的情况，将最后一个按下的手指的坐标设置为起始坐标，所以只有最后一个手指的滑动事件被处理
setStartPoint(event.getX(event.pointerCount - 1), event.getY(event.pointerCount - 1), false)
} else if(event.actionMasked == MotionEvent.ACTION_POINTER_UP){
//当多个手指同时按下的情况，当抬起一个手指时，起始坐标恢复为第一次按下的手指的坐标
setStartPoint(event.x, event.y, false)
return true
}
when (event.action) {
MotionEvent.ACTION_DOWN -> {
callBack.screenOffTimerStart()

10
app/src/main/java/io/legado/app/ui/book/read/page/delegate/ScrollPageDelegate.kt
View File

@ -58,10 +58,14 @@ class ScrollPageDelegate(readView: ReadView) : PageDelegate(readView) {
private fun onScroll(event: MotionEvent) {
mVelocity.addMovement(event)
mVelocity.computeCurrentVelocity(velocityDuration)
readView.setTouchPoint(event.getX(0), event.getY(0))
//取最后添加(即最新的)一个触摸点来计算滚动位置
//多点触控时即最后按下的手指产生的事件点
val pointX = event.getX(event.pointerCount - 1)
val pointY = event.getY(event.pointerCount - 1)
readView.setTouchPoint(pointX, pointY)
if (!isMoved) {
val deltaX = (event.getX(0) - startX).toInt()
val deltaY = (event.getY(0) - startY).toInt()
val deltaX = (pointX - startX).toInt()
val deltaY = (pointY - startY).toInt()
val distance = deltaX * deltaX + deltaY * deltaY
isMoved = distance > readView.slopSquare
}