1. Set APP_ABI:=all in almost all samples
2. Enhance hello-jni to report more ABIs
3. Fix warnings
Change-Id: I2851c42b77ef8225e32143d225edcf973633e782
Fixes two issues:
1. Remove redundant check for hard-float in Teapot/MoreTeapots and ndk_helper
they depend. The ndk-build system add those flags already for armeabi-v7a-hard
2. native-audio in debug build: assert on the non-existance var
Change-Id: Id6b2d38a264c2f2d0e0c7fe625991fcee1762800
Additions:
- volume
- stereo position
- mute / solo
- explicit pause / play / loop buttons
- spinner for URI strings
Change-Id: I92f3a191f715567531d03998d4b80e32cc9aceed
