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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(view, OverScrollDecoratorHelper.ORIENTATION_VERTICAL); 我的代码是

@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");
                }
            });

但它没有效果，我做错了什么？谢谢！

4

1 回答 1

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解决了！只需将图像放入 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

D/SWIPE：5.9953127 偏移

D/SWIPE：8.992973 偏移

D/SWIPE：10.325269 偏移

D/SWIPE：11.990633 偏移

于 2017-07-21T10:01:18.970 回答