Android get inflated layout layout_width and layout_height values

Question

In Android, how can I get the values I set in my XML file ?

my_layout.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="300dp"
    android:layout_height="500dp"
    android:orientation="vertical" >
    .....
<RelativeLayout/>

I've tried the following with no success:

View v = ((LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
            R.layout.my_layout, null);

//this gave me -1(LayoutParams.FILL_PARENT), which is not what I want. I need 300
v.getLayoutParams().width
// same for height, it gives me -1
 v.getLayoutParams().width

I do not care about how the View would actually look, I just need the values...

I know I can get the width and height of a view after the measuring is done (onGlobalLayout), but that's NOT what I need. What I need is the values in my XML.

EDIT1: I know v.getWidth() and v.getHeight() works AFTER the View is displayed on the screen, they will not work before measuring happens

Answer 1

If what you want to do is parse your xml layout in order to get some attributes the try some like this:

 Resources r = getResources();
    XmlResourceParser parser = r.getLayout(R.layout.your_layout);

    int state = 0;
    do {
        try {
            state = parser.next();
        } catch (XmlPullParserException e1) {
            e1.printStackTrace();
        } catch (IOException e1) {
            e1.printStackTrace();
        }       
        if (state == XmlPullParser.START_TAG) {
            //here get the attributes you want..., with AttributeSet for example
            }
        }
    } while(state != XmlPullParser.END_DOCUMENT);