(The Android video tutorial is explained by a senior Android development engineer. It covers a wide range of knowledge points, and the teaching ideas are clear and easy to understand. It is suitable for introductory learning. Course directory: [Android development video teaching] 01_ One day tour of Android platform [Android development video teaching] 02_ Build an Android development environment [Android development video teaching] 03_ say_ hello_ to_ Android [Android development video teaching] 04_ Activity starts [Android development video teaching] 05_ Activity and Intent [Android development video teaching] 06_ Common controls beside Android [Android development video teaching] 07_ Activity Life Cycle (I) [Android Development Video Teaching] 07_ Activity Life Cycle (I) [Android Development Video Teaching] 09_ Activity Layout Start (I) [Android Development Video Teaching] 10_ Activity Layout Start (II) [Android Development Video Teaching] 11_ Start of Activity Layout (III) [Android Development Video Teaching] 12_ Common Android Controls (II) [Android Development Video Teaching] 13_ Common Controls (III) [Android Development Video Teaching] 14_ Use of Handler (I) [Android Development Video Teaching] 15_ Use of Handler (II) [Android development video teaching] 16_ SQLite usage [Android development video teaching] 17_ Debugging program [Android development video teaching] 18_ File download [Android development video teaching] 19_ ContentProvider starts [Android development video teaching] 20_ XML file parsing [Android development video teaching] 21_ Broadcasting mechanism (I) [Android development video teaching] 22_ Broadcasting mechanism (II) [Android development video teaching] 23_ WIFI network operation [Android development video teaching] 24_ Socket programming [Android development video teaching] 25_ Service Start (I) [Android Development Video Teaching] 27_ Project function analysis [Android development video teaching] 28_ Project specific design [Android development video teaching] 29_ Code Writing (I) (I) [Android Development Video Teaching] 29_ Under code preparation (I), this document includes the following annexes:)