Android的action.MAIN和category.LAUNCHER功能 [英] Android action.MAIN and category.LAUNCHER function

问题描述

我们提到 android.intent.action.MAIN 和 android.intent.category.LAUNCHER 作为意图过滤器在的Manifest.xml发射活动。什么是小鬼。这两个？他们有什么功能？

We mention android.intent.action.MAIN and android.intent.category.LAUNCHER as Intent filter of the launcher activity in the Manifest.xml. What is imp. of these two? What are their functionality?

推荐答案

从文档

类别 - 提供额外的   有关行动信息   执行。例如，   CATEGORY_LAUNCHER意味着它应该   出现在发射器作为顶层   应用程序，而   CATEGORY_ALTERNATIVE意味着它应该   被包括在备选的列表   用户可以在执行操作   一段数据。

category -- Gives additional information about the action to execute. For example, CATEGORY_LAUNCHER means it should appear in the Launcher as a top-level application, while CATEGORY_ALTERNATIVE means it should be included in a list of alternative actions the user can perform on a piece of data.

主要手段，这项活动是当你启动应用程序，该活动创建的应用程序，即入口点。

MAIN means that this activity is the entry point of the application, i.e. when you launch the application, this activity is created.

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