自定义seekBar的样式

<SeekBar
    android:id="@+id/seekBar"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/iv_music_mark"
    android:focusable="true"
    android:maxHeight="4dp"
    android:minHeight="4dp"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:layout_marginTop="10dp"
    android:progressDrawable="@drawable/po_seekbar"
    android:thumb="@drawable/seekbar_thumb" />

po_seekbar.xml 文件：

<?xml version="1.0" encoding="utf-8"?>
<layer-list
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@android:id/background">
        <shape>
            <solid android:color="#999999" />
        </shape>
    </item>
    <item android:id="@android:id/secondaryProgress">
        <clip>
            <shape>
                <solid android:color="#999999" />
            </shape>
        </clip>
    </item>
    <item android:id="@*android:id/progress">
        <clip>
            <shape>
                <solid android:color="@color/title_blue" />
            </shape>
        </clip>
    </item>
</layer-list>

seekbar_thumb.xml 文件：

<?xml version="1.0" encoding="utf-8"?>
<selector
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/seekbar_thumb_icon" />
    <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/seekbar_thumb_icon" />
    <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/seekbar_thumb_icon" />
    <item android:drawable="@drawable/seekbar_thumb_icon" />
</selector>

这样自己可以随意修改进度条的颜色和滑块图片。。