图层列表中心项目未达到全高

Question

我有一个图层列表，开头是椭圆形，中间是直线，结尾是矩形； booth oval 和 rectangle 有 8dpx8dp，我一直在尝试不使用高度或 32dp 的高度 x 8dp 宽度的线

    <?xml version="1.0" encoding="utf-8"?>
    <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
        <item
            android:gravity="top"
            android:bottom="40dp"
            android:top="0dp">
            <shape android:shape="oval">
                <solid android:color="@color/colorAccent" />
                <size android:width="8dp" android:height="8dp"
                    />
            </shape>
        </item>
        <item
            android:top="0dp"
            android:bottom="0dp"
            >
        <rotate
            android:fromDegrees="90"
            android:toDegrees="90">
            <shape
                android:shape="line">
                <stroke
                    android:width="1dp"
                    android:color="#ff00ff"
                    android:dashWidth="1dp"
                    android:dashGap="2dp"
                    />
                <size android:width="8dp"
                    />
            </shape>
        </rotate>
        </item>
        <item
            android:gravity="bottom"
            android:top="40dp"
            android:bottom="0dp">
            <shape android:shape="rectangle">
                <solid android:color="@color/colorAccent" />
                <size android:width="8dp" android:height="8dp"
                    />
            </shape>
        </item>

</layer-list>

这是我显示它的 ImageView。

<ImageView
                    android:layout_width="8dp"
                    android:layout_height="@dimen/image_large"
                    android:src="@drawable/place_selector_left_image"
                    android:layout_gravity="center_vertical"
                    />

但它没有像预期的那样工作，线条没有占据我分配给它的完整高度。

Answer 1

好像我创建的时候线是水平的所以它只能占容器的宽度，当我旋转它时它不是我想要的高度，我给项目添加了左右偏移。这是我的最终代码。

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:bottom="40dp"
        android:top="0dp">
        <shape android:shape="oval">
            <solid android:color="@color/colorAccent" />
            <size
                android:width="8dp"
                android:height="8dp" />
        </shape>
    </item>
    <item
        android:bottom="8dp"
        android:top="8dp"
        android:right="-32dp"
        android:left="-32dp">
        <rotate xmlns:android="http://schemas.android.com/apk/res/android"
            android:fromDegrees="90"
            android:toDegrees="90">
            <shape
                android:shape="line">
                <stroke
                    android:width="1dp"
                    android:color="#ff00ff"
                    android:dashWidth="1dp"
                    android:dashGap="2dp" />
                <size android:width="8dp"
                    android:height="32dp"
                    />
            </shape>
        </rotate>
    </item>

    <item
        android:bottom="0dp"
        android:top="40dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/colorAccent" />
            <size
                android:width="8dp"
                android:height="8dp" />
        </shape>
    </item>
</layer-list>

图层列表中心项目未达到全高

Layer-list center item not getting full height

android-layout

android-imageview

android-drawable