WebView is an essential component in both Android and iOS platforms, enabling. In this paper, we will only focus on the Android platform. We first give a brief tutorial on. Initially, research would focus on how to optimize Web content to. A simple music player is provided as instance to illustrate the basic working processes of Android application components. This paper could provide guidance to. This paper seeks to better understand smart- phone application security by studying 1,100 popular free Android applications. We introduce the ded decom-.