CODEWITHSUNDEEP
javaandroiduser-interfacetransition
Jon
Jon

Reputation: 8021

Android: speeding up shared element transition between activities

I have a shared element transition between two activities that works in the following way:

Intent someintent = new Intent(this, someclass.class);

        if (Build.VERSION.SDK_INT >= 21) {

            ActivityOptions options = ActivityOptions.makeSceneTransitionAnimation(this
                    , new Pair<>(viewClicked.findViewById(R.id.someimage), "someimage")
                    , new Pair<>(viewClicked.findViewById(R.id.someicon), "someicon")
            );
            startActivity(someintent, options.toBundle());
        }
        else {
            startActivity(someintent);
        }

this works fine, but the transition is agonisingly slow. When the image is first clicked on it seems to stall for a second or two before the transition takes place. Is this due to the "weight" of the activity being loaded or is the delay configurable?

Upvotes: 20

Views: 10462

Answers (2)

Codeversed
Codeversed

Reputation: 9473

Another way that may help some that already have the Transitions setup in their styles:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
    getWindow().getSharedElementEnterTransition().setDuration(2000);
    getWindow().getSharedElementReturnTransition().setDuration(2000)
        .setInterpolator(new DecelerateInterpolator());
}

Upvotes: 17

Aleksandr
Aleksandr

Reputation: 4936

Did you try change duration of enterTransition and returntransition:

    private Transition enterTransition() {
        ChangeBounds bounds = new ChangeBounds();
        bounds.setDuration(2000);

        return bounds;
    }

    private Transition returnTransition() {
        ChangeBounds bounds = new ChangeBounds();
        bounds.setInterpolator(new DecelerateInterpolator());
        bounds.setDuration(2000);

        return bounds;
    }

And in onCreate:

getWindow().setSharedElementEnterTransition(enterTransition());
getWindow().setSharedElementReturnTransition(returnTransition());

Upvotes: 23

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