Setting the width of a view bigger than its parent's?

Question

Here is my xmls (there are basically two views: a linear [B] inside a relative [A])

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/A" android:layout_width= "wrap_content" android:layout_height= "wrap_content" > <LinearLayout android:id="@+id/B" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal"> </LinearLayout> </<RelativeLayout>

I'm setting the width of B as 10 times of the screen width, namely w*10:

RelativeLayout.LayoutParams para = new RelativeLayout.LayoutParams(w*10, h); B.setLayoutParams(para);

When I animate B,

ObjectAnimator animation2 = ObjectAnimator.ofFloat(B, "x", -w)

it shows that the width of B is w rather than w*10, as if A, who is being the parent view, is limiting its width.

What should I do to have B's width as w*10?

See stackoverflow.com/questions/31075220/…

mikm
– mikm

2022-09-15 10:16:23 +00:00
Commented Sep 15, 2022 at 10:16 — mikm
– mikm, Commented Sep 15, 2022 at 10:16

Gabe Sechan · Accepted Answer · 2013-05-22 02:50:55Z

A child view must layout completely within its parent. You cannot ever be bigger than your parent, in either direction. So yes, a parent will limit the width of a child. Of course, since your parent is set to wrap content it should grow to surround B. Have you tried calling requestLayout to make it resize itself?

Collectives™ on Stack Overflow

Setting the width of a view bigger than its parent's?

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related