3. DroidKaigi 2019
ConstraintLayout 2.0
• Helpers, Virtual Layouts, MotionLayout
• Announced at Google IO’18
• Built upon ConstraintLayout 1.1
• currently : alpha 3
• alpha 4 in a few weeks (?)
4. ConstraintSet
Encapsulate all the rules for a layout
Apply ConstraintSet to an existing layout
Switch between multiple ConstraintSets
Basic animation capabilities using TransitionManager
5. Droidkaigi 2019
Documentation
• Medium Articles:
• Introduction to MotionLayout part I http://bit.ly/2O4AmIz
• Introduction to MotionLayout part II http://bit.ly/2uPuWbw
• Introduction to MotionLayout part III http://bit.ly/2zRjCSj
• Introduction to MotionLayout part IV http://bit.ly/2QqfJaF
• GitHub:
• https://github.com/googlesamples/android-ConstraintLayoutExamples
39. Custom Attributes
• Extension to ConstraintSet
• Define values for any attribute
• Specify the type
• Specify the setter name
string
color
integer
float
dimension
boolean
85. Introducing CycleEditor
• Explore the capabilities of KeyCycles
• XML shown compatible with alpha3
• Features:
• Graph multiple cycles
• Simulate keyCycles effect on a button
86. KeyTimeCycle
•Period - 1/s (Hz)
•Offset - shifts the envelope
•Attributes - set amplitude of wave
Same attributes as KeyCycle
137. Droidkaigi 2019
Documentation
• Medium Articles:
• Introduction to MotionLayout part I http://bit.ly/2O4AmIz
• Introduction to MotionLayout part II http://bit.ly/2uPuWbw
• Introduction to MotionLayout part III http://bit.ly/2zRjCSj
• Introduction to MotionLayout part IV http://bit.ly/2QqfJaF
• GitHub:
• https://github.com/googlesamples/android-ConstraintLayoutExamples
138. Droidkaigi 2019
Give us feedback!
• Issue tracker:
• http://issuetracker.google.com
• ConstraintLayout component
• Twitter
• Nicolas Roard - @camaelon
• John Hoford - @johnhoford
• Takeshi Hagikura - @thagikura