android - LinearLayout height returns -1

Question

Getting height of LinearLayout return -1.

Code :

LinearLayout layout = (LinearLayout)findViewById(R.id.create_trip_layout);
android.view.ViewGroup.LayoutParams param = layout.getLayoutParams();
Log.d("Layout height : ", param.height + "");

Answer 1

Use layout.getHeight(); it returns its height.

From the doc

returns:
    The height of your view, in pixels. 

to work you have to wait until Android has drawn the root of your Layout.