how to start a new activity from anther activity … in android?

Question

i want to start a new activity from ab activity that (extends from Linearlayout) .. but this code is not right

Intent i = new Intent(SearchResultForm.this, MainActivity.class);
startActivity(i);

... ...

public class SearchResultForm extends LinearLayout{ ...

and i get this error ..

No enclosing instance of the type SearchResultForm is accessible in scope

how can i do it ?

Answer 1

Just guessing since I can't see the rest of your code, but try:

Intent i = new Intent(this, MainActivity.class);
startActivity(i);

Answer 2

Try this:

Intent i = new Intent(this, MainActivity.getPackageName());
startActivity(i);

Answer 3

如果此代码在活动的方法内，则只需将this作为第一个参数传递即可。