android:layerType="software"
android:layout_marginTop="18dp"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="@drawable/split_line"
android:layout_marginLeft="20dip"/>
android:shape="line">
android:dashGap="3dp"
android:dashWidth="6dp"
android:width="0.5dp"
android:color="#19000000"/>
记住用虚线的ｖｉｅｗ一定要添加android:layerType="software"