BottomSheetDialogFragment - 允许滚动子项

问题描述 投票:9回答:3

我有一个BottomSheetDialogFragmentRecyclerView。问题是,我想禁用BottomSheetDialogFragment的拖动关闭功能,只要RecyclerView没有向上滚动(目前我无法滚动我的RecyclerView,因为尝试将始终关闭BottomSheetDialogFragment)。任何想法如何实现这一目标?

android bottom-sheet
3个回答
1
投票

只需将其视为BottomSheetDialog,并在触摸时简单地禁用其拖动或滑动。

创建BottomSheetDialog时,它会自动将您的布局包装在CoordinatorLayout中,因此如果您想从视图中获取行为,请调用

final BottomSheetBehavior behavior = BottomSheetBehavior.from((View)view.getParent());

然后通过这种行为,你可以做你需要的。

final BottomSheetBehavior behavior = BottomSheetBehavior.from((View) view.getParent());
    behavior.setHideable(false);
    behavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
        @Override
        public void onStateChanged(@NonNull View bottomSheet, int newState) {

        }

        @Override
        public void onSlide(@NonNull View bottomSheet, float slideOffset) {
            behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
        }
    });

这对我有用。希望它有所帮助。


1
投票

BottomSheetDialog中的RecyclerView滚动问题可以通过这种方式解决。

来自:https://android.jlelse.eu/recyclerview-within-nestedscrollview-scrolling-issue-3180b5ad2542

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

<android.support.v4.widget.NestedScrollView
        android:id="@+id/nestedScrollView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:overScrollMode="never">


        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/recyclerView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </LinearLayout>
    </android.support.v4.widget.NestedScrollView>
</LinearLayout>

0
投票

在setupDialog方法中更改BottomSheetDialogFragment中的行为:

CoordinatorLayout.LayoutParams layoutParams = (CoordinatorLayout.LayoutParams) ((View) contentView.getParent()).getLayoutParams();
        final CoordinatorLayout.Behavior behavior = layoutParams.getBehavior();
        if (behavior != null && behavior instanceof BottomSheetBehavior) {
            ((BottomSheetBehavior) behavior).setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
                @Override
                public void onStateChanged(@NonNull View bottomSheet, int newState) {
                    if (newState == BottomSheetBehavior.STATE_HIDDEN) {
                        dismiss();
                    }

                    if (newState == BottomSheetBehavior.STATE_DRAGGING) {
                        ((BottomSheetBehavior) behavior).setState(BottomSheetBehavior.STATE_EXPANDED);
                    }


                }

                @Override
                public void onSlide(@NonNull View bottomSheet, float slideOffset) {

                }
            });
        }

-1
投票

把你的RecyclerView放在NestedScrollView下,其中NestedScroll是回收者的父母

© www.soinside.com 2019 - 2024. All rights reserved.