由于我想要在布局中进行某些动画处理和转换,因此我在NestedScrollView中拥有一个Web视图。现在,问题是垂直滚动工作得非常好(我猜这是由于嵌套滚动视图的滚动而不是Web视图的滚动),而水平滚动是平滑的。水平滚动与Web视图内内容的水平滚动一样(例如,Web视图内的轮播)。
这是我的布局:-
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/bg">
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:id="@+id/coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.SearchView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:background="@color/white"
app:layout_scrollFlags="scroll|enterAlways" />
</com.google.android.material.appbar.AppBarLayout>
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="@+id/activity_main_swipe_refresh_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<androidx.core.widget.NestedScrollView
android:id="@+id/nested_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" >
<WebView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</androidx.core.widget.NestedScrollView>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
<fr.castorflex.android.smoothprogressbar.SmoothProgressBar
android:id="@+id/progress_bar"
android:layout_width="match_parent"
android:layout_height="3.5dp"
android:indeterminate="true"
app:layout_constraintTop_toTopOf="parent"
app:spb_color="#FB9043"
app:spb_mirror_mode="false"
app:spb_reversed="false"
android:layout_marginTop="60dp"
app:spb_sections_count="5"
app:spb_speed="1.0"
app:spb_stroke_separator_length="4.0dp"
app:spb_stroke_width="4.0dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
有人可以帮我吗?
答案 0 :(得分:1)
我可以在此链接https://stackoverflow.com/a/34310846/6840443
的帮助下获得解答所以他要做的是,他基本上制作了一个自定义的NestedScrollView,并覆盖了onInterceptTouchEvent
方法并处理了应如何使用它的触摸动作,因此,尽管垂直滚动仍由NestedScrollView处理,水平滚动没有被它处理,随后传播到恰好是已经处理了这种滚动的webView的子视图。
这是它的代码:-
package com.smartprix.main
import android.content.Context
import android.util.AttributeSet
import android.view.MotionEvent
import android.view.ViewConfiguration
import androidx.core.widget.NestedScrollView
class SmartNestedScrollView : NestedScrollView {
private var slop: Int = 0
private val mInitialMotionX: Float = 0.toFloat()
private val mInitialMotionY: Float = 0.toFloat()
private var xDistance: Float = 0.toFloat()
private var yDistance: Float = 0.toFloat()
private var lastX: Float = 0.toFloat()
private var lastY: Float = 0.toFloat()
constructor(context: Context) : super(context) {
init(context)
}
private fun init(context: Context) {
val config = ViewConfiguration.get(context)
slop = config.scaledEdgeSlop
}
constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {
init(context)
}
constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {
init(context)
}
override fun onInterceptTouchEvent(ev: MotionEvent): Boolean {
val x = ev.x
val y = ev.y
when (ev.action) {
MotionEvent.ACTION_DOWN -> {
yDistance = 0f
xDistance = yDistance
lastX = ev.x
lastY = ev.y
// This is very important line that fixes
computeScroll()
}
MotionEvent.ACTION_MOVE -> {
val curX = ev.x
val curY = ev.y
xDistance += Math.abs(curX - lastX)
yDistance += Math.abs(curY - lastY)
lastX = curX
lastY = curY
if (xDistance > yDistance) {
return false
}
}
}
return super.onInterceptTouchEvent(ev)
}
}```