我的布局在NestedScrollView中包含RecyclerView,如下所示:
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<androidx.core.widget.NestedScrollView 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"
android:id="@+id/scrollView2"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="@dimen/default_margin"
android:layout_marginLeft="@dimen/default_margin"
android:layout_marginRight="@dimen/default_margin"
android:layout_marginTop="@dimen/default_margin"
android:maxLength="32"
app:layout_constraintBottom_toTopOf="@+id/linear2"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0">
<androidx.constraintlayout.widget.ConstraintLayout
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"
android:layout_width="match_parent"
android:layout_height="match_parent">
...some controls unrelated
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/parametersList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:fadeScrollbars="false"
android:paddingTop="8dp"
android:paddingBottom="32dp"
android:scrollbars="vertical"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/add_event_phone_number"/>
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.core.widget.NestedScrollView>
<LinearLayout
android:id="@+id/linear2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="@dimen/default_margin"
android:layout_marginLeft="@dimen/default_margin"
android:layout_marginRight="@dimen/default_margin"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
<Button
android:id="@+id/add_event_confirm_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_weight="1"
android:background="@android:color/holo_green_dark"
android:elevation="0dp"
android:text="@string/button_confirm"
android:textColor="@android:color/white"/>
<Button
android:id="@+id/add_event_cancel_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:background="@color/cardview_dark_background"
android:text="@string/button_cancel"
android:textColor="@android:color/white"/>
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
在Java代码中,这是初始化RecyclerView的方式:
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(parametersAdapter);
recyclerView.parametersList.setNestedScrollingEnabled(false);
某些回收站视图项目包含微调框。问题:选择微调器值时,“回收者”视图将自动滚动以开始。我不明白为什么,如何预防?微调器的选定事件仅更新绑定到适配器的集合。每次发生时,recyclerview都会滚动开始。
答案 0 :(得分:0)
您是否可以尝试在滚动视图ConstraintLayout的第一个元素中添加android:descendantFocusability =“ blocksDescendants”)