Android How to get a custom View s height and width

Question

Possible Duplicate    How to size an Android view based on its parent   s dimensions       how do I use getMeasuredWidth   and getMeasuredHeight  It always returns 0  what is the diffrence between this and getHeight   and getWidth

User · Answer

I was also lost around getMeasuredWidth   and getMeasuredHeight   getHeight   and getWidth   for a long time           later i found onSizeChanged   method to be REALLY helpful   New Blog Post  how to get width and height dimensions of a customView  extends View  in Android http   syedrakibalhasan blogspot com 2011 02 how-to-get-width-and-height-dimensions html

User · Answer

The difference between getHeight   and getMeasuredHeight   is that first method will return actual height of the View  the second one will return summary height of View s children  In ohter words  getHeight   returns view height  getMeasuredHeight   returns height which this view needs to show all it s elements

User · Answer

You can use the following method to get the width and height of the view  For example   int height   yourView getLayoutParams   height  int width   yourView getLayoutParams   width    This gives the converted value of the view which specified in the XML layout    Say if the specified value for height is 53dp in XML  you will get the converted value in integer as 80

User · Answer

Well getheight gets the height  and getwidth gets the width  But you re calling those methods too soon  If you re calling them in oncreate or onresume  the view isn t drawn yet  You have to call it after the view has been drawn

User · Answer

Don t try to get them inside its constructor  Try Call them in onDraw   method

User · Answer

Just got a solution to get height and width of a custom view    Override protected void onSizeChanged int xNew  int yNew  int xOld  int yOld       super onSizeChanged xNew  yNew  xOld  yOld        viewWidth   xNew      viewHeight   yNew      Its working in my case

[android] Android: How to get a custom View's height and width?

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