<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background" android:height="5dp">
        <shape>
            <corners android:radius="5dp"/>
            <solid android:color="#C9C7C7"/>           <!--  颜色-->
        </shape>
    </item>

    <item android:id="@android:id/secondaryProgress" android:height="5dp">
        <clip>
            <shape>
                <corners android:radius="5dp"/>
                <solid android:color="#C9C7C7"/>            <!-- 颜色-->
            </shape>
        </clip>
    </item>

    <item android:id="@android:id/progress" android:height="5dp">
        <clip>
            <shape>
                <corners android:radius="5dp"/>
                <solid android:color="@color/colorPrimary"/>   <!--  颜色-->
            </shape>
        </clip>
    </item>
</layer-list>

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 按下状态-->
    <item  android:state_pressed="true"  android:drawable="@drawable/shape1"/>

    <!-- 有焦点状态 -->
    <item  android:state_focused="true"  android:drawable="@drawable/shape"/>

    <!-- 普通状态 -->
    <item android:drawable="@drawable/shape" />
</selector>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    android:useLevel="false">
    <solid android:color="@color/colorPrimary"></solid>  <!-- 颜色-->
    <size
        android:width="12dp"
        android:height="12dp"></size>
</shape>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    android:useLevel="false">
    <solid android:color="@color/colorAccent"></solid> <!-- 颜色-->
    <size
        android:width="14dp"
        android:height="14dp"></size>
</shape>

<SeekBar
    android:id="@+id/seekbar"
    android:layout_width="368dp"
    android:maxHeight="6dip"
    android:minHeight="6dip"
    android:layout_height="40dp"
    android:max="100"
    android:progressDrawable="@drawable/seekbar"
    android:thumb="@drawable/select_seekbar"
    android:progress="30" />

<!--maxHeight
    minHeight可以控制滑竿粗线-- >