startActivityForResult（）和startActivity（）之间的区别？ [英] Difference between startActivityForResult() and startActivity()?

问题描述

什么是 startActivityForResult之间的差值（）和 startActivity（）？

当，为了什么，我应该使用每个人？

When, and for what, should I use each one ?

推荐答案

开始活动，就像你启动应用程序：比如：你有一个主屏和用户信息界面的应用程序：如果您preSS用户信息按钮，启动用户可信息活动与此有关。

startActivity

Start an activity, like you would start an application: for instance: you have an app with a home-screen and a user-info screen: if you press the user-info button, you start the user-info activity with this.

启动活动，并期待回报。例如，您的用户信息屏幕上，您可以上传个人资料图片。你用明确的目标来获得一个URI回来的preferred画面启动画廊活动。你literaly启动该活动取得的结果（图片。有一些techinical的方式，以确保你真正得到的结果，但他们在手册中很清楚的。

Start an activity and expect something in return. For instance, on your user-info screen, you can upload a profile picture. You start the gallery-activity with the explicit goal to get a URI back with the preferred picture. You start this activity literaly to obtain a result (the picture. There are some techinical ways to make sure you actually get the result, but they are quite clear in the manual.

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