This paper introduces the basic functions of the e-commerce system implemented\non Android, including user management functions, product search\nfunctions, product browsing functions, and product tracking functions, etc. It\nis necessary to use technologies in Android in order to implement each module\nfunction. For example, network communication requires Androidâ??s network\nrequest technology and data analysis technology. The display of pictures\nrequires the use of Android controls and cache technology. The traceability of\nproducts requires camera scanning technology. And RSA decryption technology\nand so on. Through the above thread pool technology and the use of\ncaching mechanism, the user experience of UI will be improved and unnecessary\nnetwork resources consumption will be avoided.
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