How to find the Width of the a view before the view is displayed?

Question

How to find the Width of the a view before the view is displayed? I do not want to add a custom view and tap the dimensions in the OnChanged().

what you exactly want ?? describe more – Shailendra Singh Rajawat Nov 20 '11 at 10:30 — Shailendra Singh Rajawat, Nov 20 '11 at 10:30

Dmytro Danylyk · Answer 1 · 2011-11-20T11:25:24.783

50

Display display = getWindowManager().getDefaultDisplay();
View view = findViewById(R.id.YOUR_VIEW_ID);
view.measure(display.getWidth(), display.getHeight());

view.getMeasuredWidth(); // view width
view.getMeasuredHeight(); //view height

edited Nov 20 '11 at 11:25

answered Nov 20 '11 at 11:02

Dmytro Danylyk

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You might also keep in mind that if the view isn't inflated it's width and height will be 0. – Joru Nov 20 '11 at 13:12
You are right Joru. I used the ViewTreeObserver and resolved my issue. Thanks to all who tried to answer. – Pavankumar Vijapur Nov 20 '11 at 14:44
4

view.measure(display.getWidth(), display.getHeight()) is deprecated – jcaruso Oct 14 '15 at 02:33
view.measure takes View.MeasureSpec as an arguments. [@Sandip Jadhav's answer](https://stackoverflow.com/a/9426895/7599300) is up to date. – Hrishikesh Kadam Sep 26 '18 at 14:07

score 39 · Answer 2 · answered Feb 24 '12 at 07:20

39

@dmytrodanylyk -- I think it will return width & height as 0 so you need to use following thing

LayoutInflater inflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
View contentview = inflater.inflate(R.layout.YOURLAYOUTNAME, null, false);
contentview.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
int width = contentview.getMeasuredWidth();
int height = contentview.getMeasuredHeight();

It will give you right height & width.

answered Feb 24 '12 at 07:20

Sandip Jadhav

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That is what I need to determine if I should start a new row of checkboxes, first making it a single line and then prevent overflow by calculating the width...perfect thank you. coming from -> http://stackoverflow.com/a/24054428/1815624 – CrandellWS Apr 30 '16 at 10:16
Yes, this is a handy way to figure out the intrinsic size of a view based on its initial xml layout, and useful if say you're doing some dynamic calculations later on for layouts. – qix Aug 10 '18 at 06:18

score 13 · Answer 3 · edited May 08 '13 at 10:15

13

You should use OnGlobalLayoutListener which is called for changes on the view, but before it is drawn.

costumView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {

    @Override
    public void onGlobalLayout() {

      costumView.getWidth();

    }
});

edited May 08 '13 at 10:15

nhahtdh

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answered May 08 '13 at 10:09

AdrianoCelentano

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score 10 · Answer 4 · answered Sep 17 '14 at 06:54

10

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
view.measure(size.x, size.y);
int width = view.getMeasuredWidth();
int height = view.getMeasuredHeight();

answered Sep 17 '14 at 06:54

Jason Yin

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score 4 · Answer 5 · edited May 23 '17 at 12:32

I like to use this technique as per my answer on a related question:

Post a runnable from onCreate() that will be executed when the view has been created:

    contentView = findViewById(android.R.id.content);
    contentView.post(new Runnable()
    {
        public void run()
        {
            contentHeight = contentView.getHeight();
        }
    });

This code will run on the main UI thread, after onCreate() has finished.

score 0 · Answer 6 · answered Aug 06 '14 at 19:22

This is the best way...... WORK!!!

public void onWindowFocusChanged(boolean hasFocus) {          
  super.onWindowFocusChanged(hasFocus);

  if (fondo_iconos_height==0) { // to ensure that this does not happen more than once
      fondo_iconos.getLocationOnScreen(loc);
      fondo_iconos_height = fondo_iconos.getHeight();
      redraw_function();
  }

 }

How to find the Width of the a view before the view is displayed?

6 Answers6

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