Created
February 6, 2018 16:41
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class MainActivity : AppCompatActivity() { | |
private var selectedView: View? = null | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContentView(R.layout.activity_main) | |
animateConstraints() | |
} | |
private fun animateConstraints() { | |
main_layout.setOnClickListener { defaultLayout() } | |
wonderwoman_img.setOnClickListener { | |
if (selectedView != wonderwoman_img) { | |
updateLayout(R.layout.activity_main_wonderwoman) | |
selectedView = wonderwoman_img | |
} | |
} | |
superman_img.setOnClickListener { | |
if (selectedView != superman_img) { | |
updateLayout(R.layout.activity_main_superman) | |
selectedView = superman_img | |
} | |
} | |
batman_img.setOnClickListener { | |
if (selectedView != batman_img) { | |
updateLayout(R.layout.activity_main_batman) | |
selectedView = batman_img | |
} | |
} | |
} | |
private fun defaultLayout() { | |
if (selectedView != null) { | |
updateLayout(R.layout.activity_main) | |
selectedView = null | |
} | |
} | |
private fun updateLayout(@LayoutRes id: Int) { | |
val constraintSet = ConstraintSet() | |
constraintSet.clone(this, id) | |
constraintSet.applyTo(main_layout) | |
val transition = ChangeBounds() | |
transition.interpolator = OvershootInterpolator() | |
TransitionManager.beginDelayedTransition(main_layout, transition) | |
} | |
} |
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