android - 在android中传递参数/参数

Question

对不起，如果这是一个愚蠢的问题，但我搜索了很多但找不到任何东西

我不完全理解这段代码 --

Intent intent = new Intent (this, MainActivity.class)

我对该行不了解的是 (this, MainActivity.class) 部分。有人会解释吗？

谢谢!

Answer 1

有据可查here :

public  Intent  (Context  packageContext, Class<?>  cls)
Since: API Level 1

Create an intent for a specific component. All other fields (action, data, type, class) are null, though they can be modified later with explicit calls. This provides a convenient way to create an intent that is intended to execute a hard-coded class name, rather than relying on the system to find an appropriate class for you; see setComponent(ComponentName) for more information on the repercussions of this.
Parameters
packageContext  A Context of the application package implementing this class.
cls     The component class that is to be used for the intent.