Some user experience( or questions)

[ninjachen]

1. The record was not complete. My record contains the keyboard input, it is "deng wo 3 fenzhong", but replay is "eng wo 3 fenzhong ", miss the first character.
2. The virtual button was not record. I tap the home button, but this tap was not recorded.
3. Is the programe need root? There are some warning tips "adbd cannot run as root in production builds". If it is, could you add this to the readme file ?