Android点9图片Can't have more than one marked region解决方法

在Android Studio上使用点9图发生如下异常：

AAPT err(Facade for 367655640): Can't have more than one marked region along edge. AAPT err(Facade for 367655640): Found at pixel #23 along bottom edge. Error:Execution failed for task ':app:mergeDebugResources'. > Crunching Cruncher img_default.9.png failed, see logs

根据异常信息Can’t have more than one marked region along edge可知，点9图的边不能超过一条黑线。 懒得写了，解决方法见第一代码的原创文章http://www.diyidaima.com/article/detail/ehwbevou