Setting android:animateLayoutChanges programmatically

Question

I am creating linearLayouts programmatically and would like them to fade in and out when the visibility is set to visible/gone.

I can set

android:animateLayoutChanges="true" 

in the xml-file, but since I am creating the views programmatically, I need to set it programmatically. How can I do that?

Solution 1

Use this code:

container.setLayoutTransition(new LayoutTransition());

or

LayoutTransition lt = new LayoutTransition();
lt.disableTransitionType(LayoutTransition.DISAPPEARING);
container.setLayoutTransition(lt);

Solution 2

To disable the fade-out effect try this:

LinearLayout layout = (LinearLayout) findViewById(R.id.test_layout);
layout.setLayoutTransition(null);

Comments

[deimos1988]

Thank you for your comment, but unfortunately disableTransitionType is only available from API level 16, however I am using API level 15.

[user3709904]

It's optional, you can use simply container.setLayoutTransition(new LayoutTransition())

[deimos1988]

Okay, but if I wanted to disable the fade-out effect, is there a way for API level 15?

[Louis CAD]

Why disable disappearing transition?

[sky]

To do it in api level less than 16, just disable Animators for this transition types. This is mentioned in the documentation: developer.android.com/intl/ru/reference/android/animation/… LayoutTransition lt = cardsGroup.getLayoutTransition(); // disabling appearing / disappearing layout transitions lt.setAnimator(LayoutTransition.APPEARING, null); lt.setAnimator(LayoutTransition.DISAPPEARING, null); lt.setAnimator(LayoutTransition.CHANGE_DISAPPEARING, null);

[Srujan Barai]

This is giving me NullPointerException.

[Paul Woitaschek]

@SrujanBarai Then there is no view with the id R.id. test_layout in your layout.