android 开发笔记，自己刚接触android时看过的，还不错，总共13个pdf笔记-Android development notes, he just contact they saw android, good, altogether 13 PDF notes

Michel need to review a document, but there is another urgent things to deal with, so please friends help review about Jack. When Machel saw Jack the results of the review, found a problem, Jack is the first person review, now Machel needs to be Jack