CODEWITHSUNDEEP
javaandroid
John
John

Reputation: 74

How to get width and height of a view

I have a class called game that extends View that is added to a LinearLayout. I know that it is displaying my View but i need to get the width and height of the view in order to draw some of my images. Here is my constructor code:

public Game(Activity activ)
{
    activ.setContentView(R.layout.game);

    ...

    ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(LayoutParams.FILL_PARENT,
            LayoutParams.FILL_PARENT);
    setLayoutParams(lp);

    layout = (LinearLayout)activ.findViewById(R.id.game_layout);
    layout.addView(this);

    ...
}

now when i do this.getWidth() and this.getHeight() i keep getting a return value of 0. How can i get the width and the height of my view?

Upvotes: 0

Views: 1324

Answers (3)

blessanm86
blessanm86

Reputation: 31789

I answered a similar question today. Try that. It should work.

Android - getting the width of a button which is set to wrap_content

Upvotes: 2

Steve Bergamini
Steve Bergamini

Reputation: 14600

The View class has both a getHeight() and getWidth method:

http://developer.android.com/reference/android/view/View.html#getHeight() http://developer.android.com/reference/android/view/View.html#getWidth()

Here's a blog on the subject as well:

http://syedrakibalhasan.blogspot.com/2011/02/how-to-get-width-and-height-dimensions.html

Upvotes: 0

jeffreyveon
jeffreyveon

Reputation: 13830

You can use layout.getLayoutParams() to get the layout param, and then use the height attribute in it.

UPDATE: If you are getting zero value, it could also mean that the view has not been initialized yet.

Upvotes: 0

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