(PopupWindow implements the pop-up menu used by Android. This source code allows Android novices to understand the menu layout framework, menu bar, option view, menu item switching, setting option click events, adding title bar and options, adding menu view, menu menu getting focus. If the control events in the menu menu cannot respond if the focus is not obtained, and the serial number of the selected menu item can be obtained! Android novices can refer to this source code.)
收藏
