android程序的简单调试，log.i方法，log.w方法，log.i方法，log.e方法，Log.v方法和程序的异常处理情况-Simple debugging Android programs

安卓端上传头像到服务器，包含拍照获取头像、本地相册获取头像，并且带有剪裁功能.(Android uploads an avatar to the server, which includes taking pictures, capturing avatars, and capturing avatars from local albums.)