recyclerview 中的项目重叠

Question

我想在回收站视图中将第一项重叠在第二项上。

这就是我想要达到的效果：

这是我的回收站视图现在的样子：

[]

绿色边框内的内容实际上是一个 recyclerView 父 recycler view 中的第一项，评级栏布局是父 recyclerview 中的第二项。请建议我如何将第一项重叠到第二项我试过了

item_rating_layout:

 <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        style="@style/LayoutHeightWrapWidthMatchStyling"
        android:layout_width="match_parent"
        android:gravity="center_horizontal"
        android:orientation="vertical"
        android:padding="@dimen/padding_large">

        <TextView
            android:id="@+id/tvRatingMessage"
            style="@style/TextStyleNormal.XXLarge"
            android:text="@string/rating_exp" />

        <RatingBar
            android:id="@+id/ratingBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_margin="@dimen/margin_medium"
            android:numStars="5"
            android:progressBackgroundTint="@color/gray"
            android:stepSize="1.0"
            android:progressTint="@color/primaryColor"
            android:rating="2.5" />

        <TextView
            android:id="@+id/tvWriteFeedBack"
            style="@style/TextStyleNormal.XXXLarge.primary"
            android:padding="@dimen/padding_medium"
            android:text="Write Feedback"
            android:visibility="gone" />

    </LinearLayout>

item_recycler_view:

 <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tool="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="@dimen/margin_24dp"
        android:layout_marginEnd="@dimen/margin_24dp"
        android:background="@color/warranty_card_background">

        <androidx.core.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fillViewport="true">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@drawable/btn_shap_without_solid_green"
                android:gravity="center_horizontal"
                android:orientation="vertical">


                <ImageView
                    android:id="@+id/ivProductImage"
                    android:layout_width="100dp"
                    android:layout_height="100dp"
                    android:layout_marginTop="@dimen/margin_medium"
                    android:scaleType="fitXY"
                    app:srcCompat="@drawable/ic_original_placeholder" />

                <TextView
                    android:id="@+id/tvName"
                    style="@style/TextStyleNormal.XXLarge.black"
                    android:textStyle="bold"
                    tool:text="Steelbird Air" />

                    <TextView
                        android:id="@+id/tvModel"
                        style="@style/TextStyleNormal.XXLarge"
                        tool:text="SBA-2 Horn Matt Black With Red " />

                <TextView
                    android:id="@+id/tvId"
                    style="@style/TextStyleNormal.XXLarge.gray"
                    android:text="@string/product_id" />

                <TextView
                    android:id="@+id/tvViewProductDetails"
                    style="@style/TextStyleNormal.XLarge.primary"
                    android:text="View product Details" />

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@+id/rvWarrantyCard"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/margin_medium"
                    android:layout_marginBottom="@dimen/margin_medium">

                </androidx.recyclerview.widget.RecyclerView>
            </LinearLayout>
        </androidx.core.widget.NestedScrollView>
    </LinearLayout>

Answer 1

使用主布局Relative否则Frame布局

Answer 2

您可以使用以下 ItemDecoration：

  public class OverlapDecoration extends RecyclerView.ItemDecoration {

  private final static int vertOverlap = -90;

  @Override
  public void getItemOffsets (Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {

    outRect.set(0, vertOverlap, 0, 0);

  }
}

现在，当您添加上面的装饰时，您的下一行将绘制在您的前一行之上。要纠正此问题，请使用 setReverseLayout(true)

使您的 recyclerview 反向

可以参考几乎一样的要求

Answer 3

我只是在第一个项目的底部添加了一些与评级栏背景相同的颜色，以某种方式解决了我的问题。

现在这是最终的 xml 相似之处：

item_recycler_view:

<?xml version="1.0" encoding="utf-8"?>

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tool="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:id="@+id/llOverlapView"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_gravity="bottom"
        android:background="@color/rating_bar"
        android:orientation="vertical"/>

        <androidx.core.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginStart="@dimen/margin_24dp"
            android:layout_marginEnd="@dimen/margin_24dp"
            android:fillViewport="true">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@drawable/btn_shap_without_solid_green"
                android:gravity="center_horizontal"
                android:orientation="vertical">


                <ImageView
                    android:id="@+id/ivProductImage"
                    android:layout_width="100dp"
                    android:layout_height="100dp"
                    android:layout_marginTop="@dimen/margin_medium"
                    android:scaleType="fitXY"
                    app:srcCompat="@drawable/ic_original_placeholder" />

                <TextView
                    android:id="@+id/tvName"
                    style="@style/TextStyleNormal.XXLarge.black"
                    android:textStyle="bold"
                    tool:text="Steelbird Air" />

                <TextView
                    android:id="@+id/tvModel"
                    style="@style/TextStyleNormal.XXLarge"
                    tool:text="SBA-2 Horn Matt Black With Red " />

                <TextView
                    android:id="@+id/tvId"
                    style="@style/TextStyleNormal.XXLarge.gray"
                    android:text="@string/product_id" />

                <TextView
                    android:id="@+id/tvViewProductDetails"
                    style="@style/TextStyleNormal.XLarge.primary"
                    android:text="View product Details" />

                <androidx.recyclerview.widget.RecyclerView
                    android:id="@+id/rvWarrantyCard"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="@dimen/margin_medium"
                    android:layout_marginBottom="@dimen/margin_medium">

                </androidx.recyclerview.widget.RecyclerView>
            </LinearLayout>
        </androidx.core.widget.NestedScrollView>
</FrameLayout>

非常感谢@Pawel

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