(For example, the taskmanager command manager for Android source code is provided by the xmobileapp team, with rich comments in the source code, which can be used as a reference for learning to write Android command managers. Some practical skills in the process of implementing Android taskmanager: integrating ListView with the new list through the LayoutInflator object_ main. The layout defined in the xml can read and write the contents of each control by setting TAG, adding a click event management mechanism to support the pop-up menu to obtain the process list. When switching back from other activities to the current activity, the process list should be rewritten)