CODEWITHSUNDEEP
androidandroid-toolbarandroid-recyclerview
Artem
Artem

Reputation: 4639

Hide/Show Toolbar programmatically on CoordinatorLayout

When I scroll my RecycleView ToolBar hide or show (with animation). enter image description here

How I can return ToolBar back programmatically?

Upvotes: 51

Views: 31712

Answers (3)

Jraco11
Jraco11

Reputation: 4586

If your toolbar is inside an AppBarLayout which is probably inside your CoordinatorLayout then something like this should work.

AppBarLayout appBarLayout = (AppBarLayout)findViewById(R.id.appBar);
            appBarLayout.setExpanded(true, true);

Or to collapse it

AppBarLayout appBarLayout = (AppBarLayout)findViewById(R.id.appBar);
            appBarLayout.setExpanded(false, true);

Here is the definition

setExpanded(boolean expanded, boolean animate)

Take note that this method is available from v23 of the support library, here is some documentation for reference, the key thing to note is "As with AppBarLayout's scrolling, this method relies on this layout being a direct child of a CoordinatorLayout."

Upvotes: 122

Johnett Mathew
Johnett Mathew

Reputation: 327

My problem was very similar to @Artem I tried many fix but none of them worked for me. @Jraco11's answer is correct when you use AppBarLayout. @johnrao07 not worked for me. But I found a perfect solution for this problem when we use Toolbar.

To hide Toolbar programatically

if (toolbar.getParent() instanceof AppBarLayout){
                    ((AppBarLayout)toolbar.getParent()).setExpanded(false,true);
                }

To show Toolbar programatically

if (toolbar.getParent() instanceof AppBarLayout){
                        ((AppBarLayout)toolbar.getParent()).setExpanded(true,true);

Refer original answer(answer by @Android HHT):- programmatically-show-toolbar-after-hidden-by-scrolling-android-design-library

Upvotes: 4

johnrao07
johnrao07

Reputation: 6908

Is that what you looking for?

Toolbar toolbar = findViewById(R.id.toolbar);  // or however you need to do it for your code
AppBarLayout.LayoutParams params = (AppBarLayout.LayoutParams) toolbar.getLayoutParams();
params.setScrollFlags(0);  // clear all scroll flags

link: How to enable/disable toolbar scrolling programmatically when using design support library

In order to hide the Toolbar your can just do something like this:

toolbar.animate().translationY(-toolbar.getBottom()).setInterpolator(new AccelerateInterpolator()).start();

If you want to show it again you call:

toolbar.animate().translationY(0).setInterpolator(new DecelerateInterpolator()).start();

Upvotes: 11

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