yangyakun921/MoGoEagleEye
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[bugfix]

Browse Source 
[recycleview 居中问题]
This commit is contained in:
yangyakun
2023-04-24 12:55:05 +08:00
parent 5e66ff1e29
commit 17f425a186
2 changed files with 84 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/ui/M1SoftFragment.kt
View File

@@ -30,6 +30,7 @@ import com.mogo.och.bus.passenger.R
import com.mogo.och.bus.passenger.bean.Temperature
import com.mogo.och.bus.passenger.presenter.BusPassengerFunctionSoftPresenter
import com.mogo.och.bus.passenger.ui.adapter.TemperatureAdapter
import com.mogo.och.bus.passenger.ui.layoutmanage.PagerCenterSnapHelper
import com.mogo.och.bus.passenger.view.HorizontalDecoration
import com.mogo.och.bus.passenger.view.PickerLayoutManager
import com.mogo.och.common.module.utils.SoundPoolHelper
@@ -235,12 +236,12 @@ class M1SoftFragment :
val data = getData()
val adapter = TemperatureAdapter(requireContext(), data, rv_aircondition_temperature)
val snapHelper: SnapHelper = LinearSnapHelper()
val snapHelper = PagerCenterSnapHelper()
snapHelper.attachToRecyclerView(rv_aircondition_temperature)
rv_aircondition_temperature.layoutManager = pickerLayoutManager
rv_aircondition_temperature.adapter = adapter
HorizontalDecoration.distance = SharedPrefsMgr.getInstance(requireContext()).getInt(HorizontalDecoration.distancekey,0)
val space = AutoSizeUtils.dp2px(context, 22f)
val space = AutoSizeUtils.dp2px(context, 15f)
rv_aircondition_temperature.addItemDecoration(HorizontalDecoration(space,data.size-1))
pickerLayoutManager.setOnScrollStopListener { view ->

81
OCH/mogo-och-charter-passenger/src/m1/java/com/mogo/och/bus/passenger/ui/layoutmanage/PagerCenterSnapHelper.kt Normal file
View File

@@ -0,0 +1,81 @@
package com.mogo.och.bus.passenger.ui.layoutmanage
import android.view.View
import androidx.recyclerview.widget.OrientationHelper
import androidx.recyclerview.widget.PagerSnapHelper
import androidx.recyclerview.widget.RecyclerView
class PagerCenterSnapHelper : PagerSnapHelper() {
private var mHorizontalHelper: OrientationHelper? = null
private var pageScollListener: PageScollListener? = null
override fun findSnapView(layoutManager: RecyclerView.LayoutManager): View? {
if (layoutManager.canScrollVertically()) {
return super.findSnapView(layoutManager)
} else if (layoutManager.canScrollHorizontally()) {
return findCenterView(layoutManager, getHorizontalHelper(layoutManager))
}
return null
}
private fun findCenterView(
layoutManager: RecyclerView.LayoutManager,
helper: OrientationHelper
): View? {
val childCount = layoutManager.childCount
if (childCount == 0) {
return null
}
var closestChild: View? = null
val center = helper.startAfterPadding + helper.totalSpace / 2
var absClosest = Int.MAX_VALUE
for (i in 0 until childCount) {
val child = layoutManager.getChildAt(i)
val params = child!!.layoutParams as RecyclerView.LayoutParams
var childCenter = 0
childCenter = if (i == 0) {
helper.getDecoratedStart(child) + helper.getDecoratedMeasurement(child) - layoutManager.getDecoratedMeasuredWidth(
child
) / 2 - params.rightMargin / 2
} else if (i == childCount - 1) {
(helper.getDecoratedStart(child)
+ (helper.getDecoratedMeasurement(child) - layoutManager.getDecoratedMeasuredWidth(
child
) / 2 - params.leftMargin / 2 - params.rightMargin))
} else {
helper.getDecoratedStart(child) + helper.getDecoratedMeasurement(child) / 2
}
val absDistance = Math.abs(childCenter - center)
/* if child center is closer than previous closest, set it as closest */if (absDistance < absClosest) {
absClosest = absDistance
closestChild = child
}
}
if (pageScollListener != null) {
if (closestChild != null) {
pageScollListener!!.onPageSelected(layoutManager.getPosition(closestChild))
}
}
return closestChild
}
private fun getHorizontalHelper(
layoutManager: RecyclerView.LayoutManager
): OrientationHelper {
if (mHorizontalHelper == null || mHorizontalHelper!!.layoutManager !== layoutManager) {
mHorizontalHelper = OrientationHelper.createHorizontalHelper(layoutManager)
}
return mHorizontalHelper!!
}
fun setPageScollListener(pageScollListener: PageScollListener?) {
this.pageScollListener = pageScollListener
}
interface PageScollListener {
fun onPageSelected(i: Int)
}
companion object {
private const val TAG = "PagerSnapHelper "
}
}