app: be more careful about android redraw events

EGL is a poor source of window dimensions. On some fraction of
rotations, it reported the old dimensions. Switch to extracting the
data from ANativeWindow, which appears to be more reliable.

While here, plumb through orientation, and follow the recommendation
in the Android platform docs to block onNativeWindowRedrawNeeded
until the draw is complete.

Fixes golang/go#11741.

Change-Id: I6b29b6a1e5743c612c9af2a8cce4260c5d7e9ca6
Reviewed-on: https://go-review.googlesource.com/12381
Reviewed-by: Nigel Tao <nigeltao@golang.org>
3 files changed
tree: ec74e86b734c10600be20435c339b5813b202684
  1. app/
  2. asset/
  3. bind/
  4. cmd/
  5. doc/
  6. event/
  7. example/
  8. exp/
  9. geom/
  10. gl/
  11. internal/
  12. testdata/
  13. .gitattributes
  14. .gitignore
  15. AUTHORS
  16. codereview.cfg
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. LICENSE
  20. PATENTS
  21. README.md
README.md

Go support for Mobile devices

The Go mobile repository holds packages and build tools for using Go on mobile platforms.

Package documentation serves as a starting point:

Caution image

The Go Mobile project is experimental. Use this at your own risk. While we are working hard to improve it, neither Google nor the Go team can provide end-user support.

This is early work and installing the build system requires Go 1.5. Follow the build instructions on godoc.org/golang.org/x/mobile/cmd/gomobile to install the gomobile command and build the basic example.


Contributions to Go are appreciated. See https://golang.org/doc/contribute.html.