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ConstraintLayout 1.0 is now available
Android Studio 2.3 RC 1 is Now Available
ConstraintLayout beta 5 is now available
Android Studio 2.3 Beta 4 is now available
Android Emulator Revision 25.3.0 (Feb 2017)
Android SDK Tools Revision 25.3.0 (Feb 2017)
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Release Updates
ConstraintLayout 1.0 is now available
āĻŦুāϧāĻŦাāϰ, ⧍⧍ āĻĢেāĻŦ্āϰুāϝ়াāϰি, ⧍ā§Ļā§§ā§
After months of intensive development, we are delighted to announce the 1.0 release of the ConstraintLayout library. It's available as a small unbundled library, in the Android Studio SDK Manager (under the "Support Repository" section), compatible with API level 9 (Gingerbread and above). We recommend updating to this version, particularly if used in production.
Note:
with Android Studio 2.3 reaching release candidate status, we also encourage people to switch to it for editing layouts (ConstraintLayout included). Many improvements have been made since 2.2, providing a smoother experience.
The ConstraintLayout library allows you to create complex layouts easily, avoiding deep nested hierarchies and providing many powerful features for designing UIs:
Relative positioning of widgets to parent or siblings
Centering positioning and bias control
Flexible size control (min/max/wrap/constrained)
Per axis group behavior (chains, weights)
Advanced visibility behavior (gone handling and margins)
Horizontal and Vertical virtual guidelines (fixed positions or percentage-based)
Aspect Ratio support
Advanced API to set constraints programmatically, allowing easy animations between layouts
A
code lab
is available as an introduction to ConstraintLayout as well as a
developer guide
. A complete online
documentation
is also available. Many excellent tutorials have also been created by the developers’ community; you can find them on
YouTube
,
Medium
, or your
favorite search engine
.
Changes since beta5:
bug fixes related to wrap_content, support for MEASURE_STATE_TOO_SMALL.