1.水平进度条
(1)水平样式一(progress_horizontal.xml)
<?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>
<corners android:radius="6dip" />
<gradient
android:angle="270"
android:centerColor="#b4b4b4"
android:centerY="0.2"
android:endColor="#000000"
android:startColor="#000000" />
</shape>
</item>
<item android:id="@android:id/secondaryProgress">
<clip>
<shape>
<corners android:radius="6dip" />
<gradient
android:angle="270"
android:centerColor="#b4b4b4"
android:centerY="0.2"
android:endColor="#000000"
android:startColor="#000000" />
</shape>
</clip>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<corners android:radius="6dip" />
<gradient
android:angle="270"
android:centerColor="#0070de"
android:centerY="0.2"
android:endColor="#0060ce"
android:startColor="#0185f2" />
</shape>
</clip>
</item>
</layer-list>
(2)水平样式二(progress_horizontal_ninpatch.xml)
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="@android:id/background">
<nine-patch android:src="@drawable/seekbar_n" />
</item>
<item android:id="@android:id/progress">
<clip>
<nine-patch android:src="@drawable/seekbar_d" />
</clip>
</item>
</layer-list>
(3)在activity_main.xml中引用
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<SeekBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="65dip"
android:layout_marginRight="65dip"
android:layout_marginTop="85dip"
android:max="100"
android:maxHeight="45dp"
android:minHeight="45dp"
android:progress="50"
android:progressDrawable="@drawable/progress_horizontal_ninpath"
android:thumb="@drawable/seekbar_thumb"
android:thumbOffset="0dp" />
<SeekBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="65dip"
android:layout_marginRight="65dip"
android:layout_marginTop="45dip"
android:max="100"
android:maxHeight="10dp"
android:minHeight="10dp"
android:progress="50"
android:progressDrawable="@drawable/progress_horizontal"
android:thumb="@drawable/seekbar_thumb"
android:thumbOffset="0dp" />
</LinearLayout>