Do the Loco-MotionLayout: Building animations with MotionLayout

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@mikescamell Do the Loco-MotionLayout @mikescamell HERE!!!

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@mikescamell by Nikita Duhovny

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– Nicolas Roard “A mix between the property animation framework, layout transitions with TransitionManager, and CoordinatorLayout” MotionLayout

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@mikescamell Scene 1 - Part 1

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@mikescamell Scene 1 - Part 1

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@mikescamell Scene 1 - Part 1

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@mikescamell (Yes yes yes I know!) dependencies { implementation 'com.android.support.constraint:constraint-layout:2.0.0-alpha3' }

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell 2019-03-20 19:45:26.529 28239-28239/? E/MotionLayout: WARNING NO app:layoutDescription tag 2019-03-20 19:45:26.683 28239-28239/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.mikescamell.locomotionlayout, PID: 28239 java.lang.NullPointerException: Attempt to invoke virtual method 'int androidx.constraintlayout.motion.widget.MotionScene.getDuration()' on a null object reference Scene 1 - Part 2

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@mikescamell

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell ... Scene 1 - Part 2

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@mikescamell ... Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2 ... …

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@mikescamell Scene 1 - Part 2 ...

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@mikescamell Scene 1 - Part 2 ...

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@mikescamell Scene 1 - Part 2 ...

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@mikescamell Scene 1 - Part 2 ...

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@mikescamell ... Scene 1 - Part 2

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@mikescamell Scene 1 - Part 2

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@mikescamell Scene 1 - Part 3

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@mikescamell Scene 1 - Part 3

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@mikescamell Scene 1 - Part 3

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@mikescamell … … … Scene 1 - Part 3

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@mikescamell … … … Scene 1 - Part 3

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@mikescamell … … … Scene 1 - Part 3

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@mikescamell … … Scene 1 - Part 3

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@mikescamell … … Scene 1 - Part 3

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@mikescamell … … Scene 1 - Part 3

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@mikescamell … Scene 1 - Part 3

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@mikescamell … Scene 1 - Part 3

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@mikescamell Scene 1 - Part 3

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@mikescamell Scene 1 - Part 3

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@mikescamell Scene 1 - Part 4

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@mikescamell Scene 1 - Part 4

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@mikescamell Scene 1 - Part 5

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@mikescamell Scene 1 - Part 6

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@mikescamell Scene 1 - Part 6 • KeyAttribute • KeyPosition • KeyCycle • KeyTimeCycle • KeyTrigger KeyFrames

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@mikescamell ... Scene 1 - Part 6

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@mikescamell Frame 0 Frame 100 Frame 70 Synopsis Scene 1 - Part 6

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@mikescamell Scene 1 - Part 6

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@mikescamell Scene 1 - Part 7 Liquidy background Liquidy background

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@mikescamell Scene 1 - Part 7

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@mikescamell Scene 1 - Part 7 shapeshifter.design

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@mikescamell topLeftAnimationForward ?.registerAnimationCallback(object : Animatable2Compat.AnimationCallback() { override fun onAnimationEnd(drawable: Drawable?) { topLeftImageView.setImageDrawable(topLeftAnimationReverse) topLeftAnimationReverse ?.start() } }) Scene 1 - Part 7 topLeftAnimationReverse ?.registerAnimationCallback(object : Animatable2Compat.AnimationCallback() { override fun onAnimationEnd(drawable: Drawable?) { topLeftImageView.setImageDrawable(topLeftAnimationForward) topLeftAnimationForward ?.start() } })

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@mikescamell Scene 1 - Part 7

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@mikescamell Scene 2 - Part 1

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@mikescamell Scene 2 - Part 1

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@mikescamell Scene 2 - Part 1

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@mikescamell ... Scene 2 - Part 1

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@mikescamell Scene 2 - Part 1

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@mikescamell ... Scene 2 - Part 1

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@mikescamell ... Scene 2 - Part 1

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@mikescamell • Color • Integer • Float • String • Dimension • Boolean CustomAttribute Scene 2 - Part 1

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@mikescamell ... ... Scene 2 - Part 1

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@mikescamell ... ... Scene 2 - Part 1

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@mikescamell ... Scene 2 - Part 1

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@mikescamell ... Scene 2 - Part 1

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@mikescamell Scene 2 - Part 1

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@mikescamell Scene 2 - Part 2

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@mikescamell ... ... Scene 2 - Part 2

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@mikescamell ... ... Scene 2 - Part 2

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@mikescamell ... ... Scene 2 - Part 2

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@mikescamell ... ... Scene 2 - Part 2

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@mikescamell Scene 2 - Part 2 ... ...

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@mikescamell Scene 2 - Part 2 ... ...

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@mikescamell Scene 2 - Part 2 ... ...

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@mikescamell Scene 2 - Part 2

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@mikescamell Scene 2 - Part 3

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@mikescamell KEYATTRIBUTES Scene 2 - Part 3

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@mikescamell ... Scene 2 - Part 3

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@mikescamell ... Scene 2 - Part 3

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@mikescamell ... ... ... Scene 2 - Part 3

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@mikescamell ... ... Scene 2 - Part 3

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@mikescamell Scene 2 - Part 3

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@mikescamell Scene 2 - Part 4

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@mikescamell Scene 2 - Part 4

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@mikescamell Scene 2 - Part 4

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@mikescamell ... ... Scene 2 - Part 4

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@mikescamell ... ... Scene 2 - Part 4

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@mikescamell Scene 2 - Part 4

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@mikescamell motionLayout.setTransitionListener(object : MotionLayout.TransitionListener { override fun onTransitionTrigger( motionLayout: MotionLayout, startId: Int, endId: Boolean, progress: Float ) { } override fun onTransitionStarted( motionLayout: MotionLayout, startId: Int, endId: Int ) { } override fun onTransitionChange( motionLayout: MotionLayout, startId: Int, endId: Int, progress: Float ) { } override fun onTransitionCompleted(motionLayout: MotionLayout, currentId: Int) { } }) Scene 2 - Part 4

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@mikescamell motionLayout.setTransitionListener(object : MotionLayout.TransitionListener { ... override fun onTransitionChange( motionLayout: MotionLayout, startId: Int, endId: Int, progress: Float ) { val color = ColorUtils.setAlphaComponent(Color.WHITE, calculateProgressAlpha(progress)) bottomRightAnimationForward ?.setColorFilter(color, PorterDuff.Mode.SRC_ATOP) bottomRightAnimationReverse ?.setColorFilter(color, PorterDuff.Mode.SRC_ATOP) } ... }) Scene 2 - Part 4

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@mikescamell Scene 2 - Part 4

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@mikescamell Scene 2 - Part 5

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@mikescamell ... Scene 2 - Part 5

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@mikescamell ... Scene 2 - Part 5

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@mikescamell ... Scene 2 - Part 5

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@mikescamell ... Scene 2 - Part 5

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@mikescamell Scene 2 - Part 5

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@mikescamell Scene 2 - Part 5

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6 Start Position End Position X Y 1.0 1.0 Delta Relative

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@mikescamell Scene 2 - Part 6 X Y 1.0 1.0 End Position Start Position Parent Relative

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@mikescamell Scene 2 - Part 6 X Y 1.0 1.0 End Position Start Position Path Relative

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@mikescamell Scene 2 - Part 6 Start Position End Position X Y 1.0 1.0 Delta Relative

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@mikescamell Scene 2 - Part 6 Start Position End Position X Y 1.0 1.0 2.0 Delta Relative

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell ... ... Scene 2 - Part 6

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@mikescamell Scene 2 - Part 6

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@mikescamell Scene 2 - Part 7

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@mikescamell Scene 2 - Part 7 ... ...

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@mikescamell Scene 2 - Part 7 ... ...

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@mikescamell ... ... Scene 2 - Part 7

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@mikescamell Scene 2 - Part 7

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@mikescamell ... Combined Scene - Part 1,2,3

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@mikescamell ... Combined Scene - Part 1,2,3

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@mikescamell Considerations • No GUI (in progress) • Doesn’t work with RecyclerViews (coming soon) • It’s in alpha! • Performance? • Elevation shadow tweaking is only 28+ • Difficult to have multiple transitions using same target

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@mikescamell

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@mikescamell Summary • Start out simple • Use an empty project • Read the blog posts & ask questions! #motionlayout • Take advantage of Apply Changes • HAVE FUN!

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@mikescamell But wait…

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@mikescamell

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@mikescamell MWUHAHAHAHAHA HAHAHAHAHAHAH AHAHAHHAHAHAH AHAHAHAHAHAHA HAHAHAHAHAHAH AHAHAHAHAHA!!!!! L O L O L O L O L O L O L O L @johnhoford

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@mikescamell THANK YOU! Want to read the latest blog posts from Android Developers around the world? Checkout: androiddev.io (please it’s costing me $5 a month) Twitter: @mikescamell Website: mikescamell.com Podcast (on hiatus): androidsnacks.com (Skip to the “funny” bits at the end) Slides: http:/ /bit.ly/loco-motionlayout

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@mikescamell Links • Slides - http:/ /bit.ly/loco-motionlayout • Loco-MotionLayout Repo - https:/ /github.com/mikescamell/Loco-MotionLayout • Nicolas Roard’s MotionLayout Series: - https:/ /medium.com/google-developers/introduction-to-motionlayout-part-i-29208674b10d - https:/ /medium.com/google-developers/introduction-to-motionlayout-part-ii-a31acc084f59 - https:/ /medium.com/google-developers/introduction-to-motionlayout-part-iii-47cd64d51a5 - https:/ /medium.com/google-developers/deﬁning-motion-paths-in-motionlayout-6095b874d37 • Google Constraint/MotionLayout Example Repo - https:/ /github.com/googlesamples/android-ConstraintLayoutExamples

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@mikescamell Links • MotionLayout Sunday ™ (where the idea for this talk originated): - https:/ /twitter.com/MikeScamell/status/1071810532888457217 - https:/ /twitter.com/MikeScamell/status/1074342193102495746 - https:/ /twitter.com/MikeScamell/status/1076790689659322368 - https:/ /twitter.com/MikeScamell/status/1079508256857436160 - https:/ /twitter.com/MikeScamell/status/1082037771362029574 • ShapeShifter (Creating AnimatedVectorDrawables) - https:/ /shapeshifter.design/ • PorterDuff.Mode - https:/ /developer.android.com/reference/android/graphics/PorterDuff.Mode

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@mikescamell • TODO add more videos • Check for todo slides