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October 28, 2018 14:34
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Show toolbar elevation using a NestedScrollView
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| scrollView.setOnScrollChangeListener(NestedScrollView.OnScrollChangeListener { _, _, scrollY, _, _ -> | |
| if (toolbar == null) { | |
| return@OnScrollChangeListener | |
| } | |
| if (scrollY > 0) { | |
| ViewCompat.animate(this).translationZ(toolbarElevation).run { | |
| interpolator = DecelerateInterpolator() | |
| duration = animationDuration | |
| start() | |
| } | |
| } else { | |
| ViewCompat.animate(this).translationZ(0f).run { | |
| interpolator = DecelerateInterpolator() | |
| duration = animationDuration | |
| start() | |
| } | |
| } | |
| }) |
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