android开发--ProgressBar 颜色/样式的设置

有时候，调用系统原生ProgressBar有时样式不能满足需求，这里介绍如何简单修改进度条的样式。

布局文件代码：

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<ProgressBar   

                android:id="@+id/progressbar"  

                android:layout_width="wrap_content"  

                android:layout_height="wrap_content"  

                android:indeterminateDrawable="@drawable/progressbar"  

            />  

此XML文件新建在drawable目录下：文件名为：progressbar

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<?xml version="1.0" encoding="utf-8"?>  

<animated-rotate  

   xmlns:android="http://schemas.android.com/apk/res/android"  

 android:pivotX="50%" android:pivotY="50%"      

 android:fromDegrees="0"    

 android:toDegrees="360">  

      

    <shape   

     android:shape="ring"   

     android:innerRadiusRatio="3"    

  android:thicknessRatio="8"   

  android:useLevel="false">    

  <gradient   

   android:type="sweep"   

   android:useLevel="false"    

   android:startColor="#6BD3FF"           

    android:centerColor="#FF7121"    

   android:centerY="0.50"   

   android:endColor="#FFFF00" />    

 </shape>    

      

</animated-rotate>  



至于设置水平进度条的颜色:

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<LinearLayout android:gravity="center"  

    android:orientation="horizontal"  

    android:padding="10dp"   

    android:layout_width="fill_parent"  

    android:layout_height="wrap_content">  

    <SeekBar android:layout_gravity="center" android:id="@android:id/progress"  

        android:paddingLeft="8.0dip" android:paddingRight="8.0dip"  

        android:paddingBottom="4.0dip" android:layout_width="fill_parent"  

        android:layout_height="wrap_content" android:maxHeight="2.0px"  

        android:progressDrawable="@drawable/progressbar_drawable" android:minHeight="2.0px"  

        android:thumb="@drawable/seekbar_thumb" style="?android:attr/progressBarStyleHorizontal" />  

</LinearLayout>  

progressbar_drawable.xml如下：

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<?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="2.0dip" />  

            <gradient android:startColor="#ff000000" android:centerColor="#ff000000" android:endColor="#ff000000" android:angle="270.0" android:centerY="2.0"  />  

        </shape>  

    </item>  

    <item android:id="@android:id/progress">  

        <clip>  

            <shape>  

                <corners android:radius="2.0dip" />  

                <gradient android:startColor="#ff33b5e5" android:centerColor="#ff33b5e5" android:endColor="#ff33b5e5" android:angle="270.0" android:centerY="2.0"  />  

            </shape>  

        </clip>  

    </item>  

</layer-list>  



参考：http://blog.csdn.NET/mars2639/article/details/6620836