我有一个Nestedscrollview，当我向上滚动时，我必须隐藏一个当前未在屏幕上显示的视图。但是当我隐藏它时，Nestedscrollview会自动将自身滚动到adujst。我想阻止它滚动直到用户再次手动滚动
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<LinearLayout
android:id="@+id/clMain"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/toolbar_with_boarding_point"
layout="@layout/toolbar_with_boarding_point"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="visible" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="@+id/lytHeader"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/smart_bus_gradient_bg"
android:gravity="center_horizontal"
android:orientation="vertical"
android:visibility="gone">
<ImageView
android:id="@+id/ivFirstHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/dimen_60dp"
android:layout_marginTop="@dimen/gen_mar_pad_five"
android:layout_marginRight="@dimen/dimen_60dp" />
<ImageView
android:id="@+id/ivSecondHeader"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/gen_mar_pad_twenty"
android:layout_marginEnd="@dimen/gen_mar_pad_twenty" />
</LinearLayout>
<androidx.core.widget.NestedScrollView
android:id="@+id/nsvMain"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="@+id/lytMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/color_flexi"
android:gravity="center_horizontal"
android:orientation="vertical">
<FrameLayout
android:id="@+id/rytViewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<View
android:id="@+id/viewPagerBg"
android:layout_width="match_parent"
android:layout_height="@dimen/fast_scroll_overlay_text_size"
android:layout_gravity="bottom"
android:background="@drawable/half_arc_white_bg"
android:visibility="gone" />
<View
android:id="@+id/viewPagerBlueBg"
android:layout_width="match_parent"
android:layout_height="@dimen/fast_scroll_overlay_text_size"
android:layout_gravity="bottom"
android:background="@drawable/half_arc_blue_big_bg"
android:visibility="gone" />
<androidx.viewpager.widget.ViewPager
android:id="@+id/vpSmartBus"
android:layout_width="match_parent"
android:layout_height="@dimen/dimen_180dp"
android:layout_marginStart="@dimen/fab_margin"
android:layout_marginTop="@dimen/gen_mar_pad_five"
android:layout_marginBottom="@dimen/gen_mar_pad_two"
android:elevation="@dimen/gen_mar_pad_ten" />
</FrameLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/rytViewPager">
<LinearLayout
android:id="@+id/llytBusFeaturesBig"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:orientation="vertical">
<ImageView
android:id="@+id/ivBackgroundImage"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<RelativeLayout
android:id="@+id/rlytBusAmenities"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:id="@+id/lytBusAmenities"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/tvBusAmenities"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/rounded_right_side_only_12dp"
android:fontFamily="@font/roboto"
android:paddingStart="@dimen/fab_margin"
android:paddingTop="@dimen/gen_mar_pad_five"
android:paddingEnd="@dimen/gen_mar_pad_eight"
android:paddingBottom="@dimen/gen_mar_pad_five"
android:text="@string/str_smart_bus_amenities"
android:textColor="@color/color_blue_boarding_point"
android:textSize="@dimen/text_size_micro" />
<View
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_gravity="center_vertical"
android:background="@drawable/dashed_amenities_blue_line" />
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rvBusAmenities"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/lytBusAmenities"
android:layout_marginTop="@dimen/gen_mar_pad_ten"
android:visibility="visible"
tools:itemCount="1" />
</RelativeLayout>
<LinearLayout
android:id="@id/lytBusSchedule"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/gen_mar_pad_twenty"
android:background="@drawable/half_arc_blue_bg"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/gen_mar_pad_twenty"
android:background="@color/color_flexi"
android:orientation="vertical">
<TextView
android:id="@+id/tvBusSchedule"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="@font/roboto"
android:gravity="center_horizontal"
android:text="@string/str_smart_bus_schedule"
android:textColor="@color/white"
android:textSize="@dimen/text_size_medium" />
<com.railyatri.in.bus.common.FlowLayout
android:id="@+id/flytBusSchedule"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="@dimen/gen_mar_pad_ten"
android:layout_marginBottom="@dimen/gen_mar_pad_ten"
android:gravity="center"
android:orientation="vertical" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:id="@+id/lytLowerMain"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/llytBusFeaturesBig"
android:orientation="vertical">
<View
android:id="@+id/viewPagerBlueLowerBg"
android:layout_width="match_parent"
android:layout_height="@dimen/fast_scroll_overlay_text_size"
android:layout_gravity="bottom"
android:layout_marginBottom="-2dp"
android:background="@drawable/half_arc_blue_big_bg"
android:visibility="gone" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/color_flexi"
android:orientation="vertical">
<LinearLayout
android:id="@+id/llytBusFeaturesSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/gen_mar_pad_twenty"
android:orientation="vertical"
android:visibility="gone">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/gen_mar_pad_ten"
android:layout_marginBottom="@dimen/gen_mar_pad_twenty"
android:background="@color/color_flexi"
android:weightSum="3">
<LinearLayout
android:layout_width="@dimen/zero_dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ontime_promise_icon_new" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/gen_mar_pad_five"
android:text="@string/str_on_time_promise"
android:textColor="@color/white"
android:textSize="@dimen/text_size_micro"
app:fontFamily="@font/roboto" />
</LinearLayout>
<View
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginStart="@dimen/gen_mar_pad_ten"
android:layout_marginTop="@dimen/gen_mar_pad_five"
android:background="@color/color_white_30" />
<LinearLayout
android:layout_width="@dimen/zero_dp"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:orientation="horizontal"
android:visibility="visible">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/flexi_icon_new" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/gen_mar_pad_five"
android:text="@string/flexi_ticket"
android:textColor="@color/white"
android:textSize="@dimen/text_size_micro"
app:fontFamily="@font/roboto" />
</LinearLayout>
<View
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginStart="@dimen/gen_mar_pad_ten"
android:layout_marginTop="@dimen/gen_mar_pad_five"
android:background="@color/color_white_30" />
<LinearLayout
android:layout_width="@dimen/zero_dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="@drawable/safety_promise_new" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/gen_mar_pad_five"
android:text="@string/safety_promise"
android:textColor="@color/white"
android:textSize="@dimen/text_size_micro"
app:fontFamily="@font/roboto" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="@+id/tvExclusiveFeatures"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/gen_mar_pad_four"
android:background="@drawable/rounded_corner_exclusive_blue"
android:paddingLeft="@dimen/gen_mar_pad_ten"
android:paddingTop="@dimen/gen_mar_pad_five"
android:paddingRight="@dimen/gen_mar_pad_ten"
android:paddingBottom="@dimen/gen_mar_pad_five"
android:text="@string/str_exclusive_features"
android:textColor="@color/color_exclusive_offers"
android:textSize="@dimen/text_size_micro"
app:fontFamily="@font/roboto"
app:theme="@style/RippleTheme" />
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rvRyBusList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="visible" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
</RelativeLayout>
</androidx.core.widget.NestedScrollView>
</LinearLayout>
<Button
android:id="@+id/btnBookNow"
style="@style/Widget.Button"
android:layout_width="match_parent"
android:layout_alignParentBottom="true"
android:layout_marginStart="@dimen/gen_mar_pad_twenty_five"
android:layout_marginTop="@dimen/gen_mar_pad_twenty"
android:layout_marginEnd="@dimen/gen_mar_pad_twenty_five"
android:layout_marginBottom="@dimen/fab_margin"
android:background="@drawable/rounded_corner_flexi_green"
android:text="@string/str_book_bus"
android:textAllCaps="true"
android:textColor="@color/white"
android:textSize="@dimen/text_size_small"
android:visibility="gone"
app:theme="@style/RippleTheme" />
</RelativeLayout>
</LinearLayout>
</layout>
当我滚动到recyclerView rvRyBusList的第二个位置时，我隐藏了llytBusFeaturesBig和NestedScrollView开始滚动，但是我想在那时停止滚动。我正在使用以下方法在滚动时隐藏布局。
binding.smartBusListingLayout.nsvMain.setOnScrollChangeListener(object: NestedScrollView.OnScrollChangeListener {
override fun onScrollChange(v: NestedScrollView?, scrollX: Int, scrollY: Int, oldScrollX: Int, oldScrollY: Int) {
showHideExculsiveFeatures()
}
})
private fun showHideExculsiveFeatures() {
val scrollBounds = Rect()
binding.smartBusListingLayout.nsvMain.getHitRect(scrollBounds)
if (binding.smartBusListingLayout.rvRyBusList.getChildAt(2).getLocalVisibleRect(scrollBounds)) {
//showBusList()
binding.smartBusListingLayout.llytBusFeaturesBig.visibility = View.GONE
binding.smartBusListingLayout.llytBusFeaturesSmall.visibility = View.VISIBLE
showHideBtnFilterView()
}
}
答案 0 :(得分：1)
您可以使用VISIBILITY.INVISIBLE代替GONE。 像这样
return su.getText()
答案 1 :(得分：0)
您可以在嵌套滚动视图上设置setOnScrollChangeListener
NestedScrollView nsView= findViewById(R.id.nsView);
nsView.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
@Override
public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
if (scrollY > oldScrollY) {
Log.i("scroll", "Scroll DOWN....");
}
if (scrollY < oldScrollY) {
//you can write here
Log.i("scroll", "Scroll UP.....");
}
if (scrollY == 0) {
Log.i("scroll", "TOP SCROLL.....");
}
if (scrollY == ( v.getMeasuredHeight() - v.getChildAt(0).getMeasuredHeight() )) {
Log.i("scroll", "BOTTOM SCROLL...");
}
}
});