Fix recorder crash on various Android devices

Changes

1. Fix: Fixed the crash on various Android devices Ziggeo/android-sdk-demo#26.
2. Fix: Fixed the crash while switching the camera Ziggeo/android-sdk-demo#31.
3. Improvement: Stop & close button not needed with sendImmediate is set to true Ziggeo/android-sdk-demo#32.

Code Diff

v1.0.1...v1.0.2