Android 用户界面之重写onKeyDown方法源码

源码介绍：
      用户可以使用两个级别与您的 UI 进行交互，即活动级别和视图级别。在活动级别，Activity 类公开了一些您可以覆盖的方法。您可以在 Activity 中覆盖一些常用方法：
以下示例重写了活动中的一些方法，以显示用户如何与各种活动进行交互。
    onKeyDown
    onKeyUp
    onMenuItemSelected
    onMenuOpened

(Source code introduction:
Users can interact with your UI at two levels, the activity level and the view level. At the activity level, the activity class exposes some methods that you can override. You can override some common methods in the activity:
The following example rewrites some methods in an activity to show how users interact with various activities.
onKeyDown
onKeyUp
onMenuItemSelected
onMenuOpened)

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2022-5-24 16:42 上传

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