bg_round_rectangle_white.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <!-- 填充 -->
    <solid android:color="#FFFFFF" />

    <!-- 圆角 -->
    <corners
        android:radius="2dp"/>

    <!-- 描边 -->
    <stroke
        android:width="1dp"
        android:color="#D5D5D5"/>

</shape>

bg_round_rectangle_white_dash.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <!-- 填充 -->
    <solid android:color="#FFFFFF" />

    <!-- 圆角 -->
    <corners
        android:radius="2dp"/>

    <!-- 虚线描边 -->
    <stroke
        android:width="1dp"
        android:color="#DD4041"
        android:dashWidth="1dp"
        android:dashGap="2dp"/>

</shape>

bg_round_rectangle_red.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <!-- 填充 -->
    <solid android:color="#F15C5D" />

    <!-- 圆角 -->
    <corners
        android:radius="2dp"/>

    <!-- 描边 -->
    <stroke
        android:width="1dp"
        android:color="#D42D2E"/>

</shape>

bg_round_rectangle_green.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <!-- 填充 -->
    <solid android:color="#88C14E" />

    <!-- 圆角 -->
    <corners
        android:radius="2dp"/>

    <!-- 描边 -->
    <stroke
        android:width="1dp"
        android:color="#6FA13C"/>

</shape>

triangle_white_arrow_up.xml

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="45"
    android:toDegrees="45"
    android:pivotX="-40%"
    android:pivotY="80%">

    <shape android:shape="rectangle">
        <solid android:color="#000000"/>
    </shape>

</rotate>

triangle_white_arrow_down.xml

<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromDegrees="45"
    android:toDegrees="45"
    android:pivotX="135%"
    android:pivotY="15%">

    <shape android:shape="rectangle">
        <solid android:color="#000000"/>
    </shape>

</rotate>