How to convert RGB24 into BMP?

I am facing convertion problem in android

problem is unable to convert RGB24 into BMP so that i can use imageview to draw bmp.But BitmapFactory.decodeByteArray failed to decode . it r开发者_StackOverflow中文版eturns null. I tried using OpenGL to render the rgb data but the problem is facing color related issue instead of blue it is showing red color.

any idea?