OverScrollDecoratorHelper 从视图中获取 onOverScrollUpdate 回调

Question

我正在使用 "me.everything:overscroll-decor-android:1.0.4"。我可以从图像视图中获取偏移值，我试图向下滑动吗？文档说
OverScrollDecoratorHelper.setUpStaticOverScroll（视图，OverScrollDecoratorHelper.ORIENTATION_VERTICAL）；我的密码是

@BindView(R.id.swipeDownImgV)
ImageView swipeDownImgV;


@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.no_orders_fragment, container, false);
    ButterKnife.bind(this, view);

    setUpSwipeListener();

    return view;
}

private void setUpSwipeListener() {

    OverScrollDecoratorHelper.setUpStaticOverScroll(swipeDownImgV, OverScrollDecoratorHelper.ORIENTATION_VERTICAL)
            .setOverScrollUpdateListener(new IOverScrollUpdateListener() {
                @Override
                public void onOverScrollUpdate(IOverScrollDecor decor, int state, float offset) {
                    Log.d(Tag.SWIPE, offset + " offset");
                }
            });

但是没有效果，我做错了什么？谢谢！

Answer 1

已解决！只需要将图像放入 ScrollView

 <ScrollView
    android:id="@+id/swipeDownContainerScrlV"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/v16dp"
        android:rotation="-90"
        android:src="@drawable/no_order_swipe_arrow"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</ScrollView>

D/SWIPE: 2.3315098 偏移量

D/SWIPE: 5.9953127 偏移量

D/SWIPE: 8.992973 偏移量

D/SWIPE: 10.325269 偏移量

D/SWIPE: 11.990633 偏移量

OverScrollDecoratorHelper 从视图中获取 onOverScrollUpdate 回调

OverScrollDecoratorHelper get onOverScrollUpdate callback from view

android

overscroll