View bring to front doesnt work

Question

I want to change z order of some views during animation

On Androids above 4.1.2 it works just fine, and on androids below 4.1.2 the Z order doesnt change, the top view remains on top.

This is what i am trying.

myView.bringToFront();
((View)myView.getParent()).invalidate();

How to make it work on older devices ?

You are correct, I edited this post from a different question i wanted to ask, and decided not to, the title didnt seem to have changed, fixed it, thanks — Lena Bru, Aug 14 '14 at 10:53

score 30 · Accepted Answer · answered Aug 14 '14 at 15:09

   /**
     * Change the view's z order in the tree, so it's on top of other sibling
     * views. This ordering change may affect layout, if the parent container
     * uses an order-dependent layout scheme (e.g., LinearLayout). Prior
     * to {@link android.os.Build.VERSION_CODES#KITKAT} this
     * method should be followed by calls to {@link #requestLayout()} and
     * {@link View#invalidate()} on the view's parent to force the parent to redraw
     * with the new child ordering.
     *
     * @see ViewGroup#bringChildToFront(View)
     */
    public void bringToFront() {
        if (mParent != null) {
            mParent.bringChildToFront(this);
        }
    }

according to this I was simply missing the line

((View)myView.getParent()).requestLayout();

and it worked!

Based in your response I do: myView.bringToFront(); myView.requestLayout(); And works also in Android 4.1.1 — Gilian, Apr 20 '16 at 18:18
Confirmed while testing on sdkVersion 16 :). I didn't noticed as I was working previously on sdkVersion25. — Juan Mendez, Apr 04 '17 at 05:20

score 17 · Answer 2 · answered Oct 19 '16 at 07:31

17

I tried all that. A RelativeLayout was supposed to be on top of a Button but it just didn't want to obey.

In the end I solved it by adding android:elevation="2dp" to the RelativeLayout.

The elevation value is only used in API level 21 and higher. In my case everything below the API level 21 was fine and everything above wasn't.

Hope this might help someone :)

answered Oct 19 '16 at 07:31

Colibri

713
12
16

Awesome :D Glad I could help! – Colibri May 02 '18 at 07:35
1

Great approach. Thank you. – Adarsh Vijayan P Apr 30 '19 at 05:41

Adrian Buciuman · Answer 3 · 2018-06-12T09:44:23.770

6

I hope this will be useful for somebody. None of the above solutions worked for me. Why? Because my view that I wanted to be in the frond had an elevation smaller than other view. So the view with bigger elevation was always in front, no matter what.

edited Jun 12 '18 at 09:44

answered Dec 07 '16 at 20:29

Adrian Buciuman

185
3
13

1

This is true for devices above Lollipop. – tasomaniac Aug 24 '17 at 07:55

score 2 · Answer 4 · answered Jun 21 '16 at 08:54

If the parent view is a relativelayout, then it might work or it might not work. I tried bringToFront, requestLayout, and removeView; addView, but no luck. My solution was to put everything inside a framelayout. What I needed on top was moved the buttom of the framelayout with visibility invisible, and then in code it was made visible.

score 2 · Answer 5 · answered Jan 07 '18 at 02:23

2

For Api's 21 or above There is an xml attribute known as translateZ which lets you define the elevation level on the view.

You can pretty much use that too.

android:translateZ="30dp"

*APIs >=21

answered Jan 07 '18 at 02:23

Tilak Raj

1,369
5
31
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score 0 · Answer 6 · edited Jan 05 '22 at 12:04

0

According to this I was simply missing the line

This Simple line work for you

yourView.bringToFront();

edited Jan 05 '22 at 12:04

Suraj Rao

29,388
11
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103

answered Jan 05 '22 at 11:53

Adnan Gulzar

3
1

View bring to front doesnt work

6 Answers6

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