如何进行其他活动? [英] How to access another activity?

问题描述

为了清楚起见，此不是我想要的.我想访问另一个活动的上下文.

Just to make it clear, this is not I want. I want to access another Activity's context.

假设我有两个活动，MainActivity和WebActivity.在MainActivity中，我使用oAuth2登录，登录后，我启动WebActivity.在WebActivity中，我需要使用功能mTencent.logout(MainActivity.this);注销，问题是如何从WebActivity访问MainActivity?

Suppose I've two activities, MainActivity and WebActivity. In MainActivity I used oAuth2 login, and after login I start the WebActivity. In WebActivity I need to logout with the function mTencent.logout(MainActivity.this);, the question is how can I access MainActivity from WebActivity?

如果直接执行此操作，则会收到错误消息，

If I do this directly, I get the error,

MainActivity不是封闭类吗?

MainActivity is not an enclosing class?

考虑到我是android的初学者，这可能不是实现它的确切方法.

Considering I'm a starter of android, here may be not the exact way to implement it.

有人会帮忙吗?谢谢！

API:void com.tencent.tauth.Tencent.logout(Context context)

推荐答案

在login和logout方法中使用Application上下文.因为它们将在应用程序级别进行管理.

Use Application context in your login and logout methods. As they will be managed at Application level.

因此将mTencent.logout(MainActivity.this);更改为mTencent.logout(getApplicationContext());.

还更改您的login方法以在应用程序上下文中工作.

Also change your login method to work in application context.

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