Feature custom Animation expand/collapse

[blogcat]

Feature custom Animation expand/collapse

[Cliffus]

I checked out the source code of the EasingInterpolator library, and it seems that this interpolator implements the TimeInterpolator interface from the Android framework.

public class EasingInterpolator implements TimeInterpolator {

    private final Ease ease;

    public EasingInterpolator(@NonNull Ease ease) {
        this.ease = ease;
    }

    @Override
    public float getInterpolation(float input) {
        return EasingProvider.get(this.ease, input);
    }

    public Ease getEase() {
        return ease;
    }
}

https://github.com/MasayukiSuda/EasingInterpolator/blob/master/ei/src/main/java/com/daasuu/ei/EasingInterpolator.java

Version 1.0.1 of ExpandableTextView added support for TimeInterpolators:

   /**
     * Sets a {@link TimeInterpolator} for expanding and collapsing.
     * @param interpolator the interpolator
     */
    public void setInterpolator(final TimeInterpolator interpolator)
    {
        this.expandInterpolator = interpolator;
        this.collapseInterpolator = interpolator;
    }

    /**
     * Sets a {@link TimeInterpolator} for expanding.
     * @param expandInterpolator the interpolator
     */
    public void setExpandInterpolator(final TimeInterpolator expandInterpolator)
    {
        this.expandInterpolator = expandInterpolator;
    }

    /**
     * Sets a {@link TimeInterpolator} for collpasing.
     * @param collapseInterpolator the interpolator
     */
    public void setCollapseInterpolator(final TimeInterpolator collapseInterpolator)
    {
        this.collapseInterpolator = collapseInterpolator;
    }

So the only thing you have to do is add ExpandableTextView (1.0.1) and EasingInterpolator as a dependency to your project and set EasingInterpolator as interpolator for ExpandableTextView.

Can you confirm this works for you?

[webserveis]

It works well with EasingInterpolator library.