Android代码设置Shape渐变色

http://stackoverflow.com/questions/4177401/gradientdrawable-in-code

< shape android:shape="rectangle" xmlns...">
     < gradient
         android:startColor="#255779"
         android:centerColor="#3e7492"
         android:endColor="#a6c0cd"
         android:angle="90" />

    < stroke android:width="1dp" android:color="#0d202e" />
</shape>




int colors[] = { 0xff255779 , 0xff3e7492, 0xffa6c0cd };
GradientDrawable g = new GradientDrawable(GradientDrawable.Orientation.TOP_BOTTOM, colors);
setBackgroundDrawable(g);