Some sample apps on emulator are placed on /data
partition and are not pre-dexopted.
Enable them to make the emulator system image a
little faster, especially for arm.
bug: 28312444
This should only impact SDK system images, not
real devices.
Change-Id: Icdb34512a3a6d95b4d6ffd2415835c6ba8c77fcc
Add LOCAL_DEX_PREOPT := false to force the samples to build actual apks.
In addition, fix a couple of other small issues:
- TtsEngine didn't have the api level set properly.
- SimpleJNI used a non-ndk library and was using libc++.
Change-Id: I1fd7c187956eed4620049bb746f4d62babcd648a
