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I Wonder what is and does (this) in this code:

Button btn = new Button(this);
MByD
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asked Nov 27, 2011 at 8:02

2 Answers 2

5

this refers to the current object, which is probably the Activity. Activity extends Context, and it is passed as Context to the Button constructor.

answered Nov 27, 2011 at 8:06
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6 Comments

I see. Would it be fine if I omit (this)?
No! you need to pass the context to the Button constructor
Ok. May I write other words in parenthesis? If yes, what would they mean?
I think it is better that you explain the whole problem (in a new question) please add relevant code, and the error that you have. This way is kind of cryptic.
Oh, no, I don't program anything with Java right now. When I read such code, and I don't find explanation on it, I just wonder what it is like and what is its equivalent in Objective-C?
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4

Its a reference to the Context

answered Nov 27, 2011 at 8:06

1 Comment

I see. Would it be fine if I omit (this)?

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