Merge pull request #77 from DIdiHL/mia

Mia
Complete the hand shaking app.
Merge branch 'development' of https://github.com/DIdiHL/plugin_android_library into hanlin
Merge pull request #78 from DIdiHL/hanlin

Hanlin complete the hand shaking app
add alert sound and progress bar
Merge pull request #79 from DIdiHL/chenxi

add alert sound and progress bar
merge