yasea is an RTMP streaming client in pure Java for Android for those who hate JNI development. It is based on the source code of both srs-sea and SimpleRtmp to hard encode video in H.264 frome camera and audio from phone in AAC and upload packets to server over RTMP. Moreover, hard encoding produces less CPU overhead than software does. And the code does not depend on any native library.
You may watch the live broadcast at srs.net. Note to change the URL yourself. Have fun!