如何在某一点驳回的Andr​​oid previous活动？ [英] How to dismiss previous activities in android at a certain point?

问题描述

我有活动A - > B - > C，其中A和B是用于登录和验证的目的。当用户到达活动C，A和B是没有必要了。这意味着，如果用户preSS BACK在C，应用不应该去直通A和B，而是应该回到主屏。

I have activities A -> B -> C where A and B are for login and verification purpose. When a user reaches activity C, A and B are not necessary any more. That means if a user press BACK in C, the application should not go thru A and B, instead it should go back to HOME screen.

什么是android系统中实现这个常规的方法是什么？谢谢你。

What's the conventional way to implement this in android? Thanks.

编辑：澄清一点，用户应该能够登录/验证阶段时回到A从B，而不是从C到A或B，一旦用户到达ç

to clarify a bit, user should be able to go back to A from B during login/verification phase, but not from C to A or B once the user reaches C.

推荐答案

在去下一个活动通话

finish();

从明年开始活动之前。

before starting next activity.

或者，如果没有pressing回来，但要下一个活动：

Or, if not pressing back but going to next activity:

Intent intent = new Intent(this, A.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

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