...rc/main/java/com/example/leo/fitnessdiy/ChatActivity.java

...rc/main/java/com/example/leo/fitnessdiy/HomeActivity.java

...c/main/java/com/example/leo/fitnessdiy/LevelActivity.java

...c/main/java/com/example/leo/fitnessdiy/LoginActivity.java

...c/main/java/com/example/leo/fitnessdiy/PlankActivity.java

.../main/java/com/example/leo/fitnessdiy/PushupActivity.java

...java/com/example/leo/fitnessdiy/RegistrationActivity.java

...main/java/com/example/leo/fitnessdiy/SettingActivity.java

...c/main/java/com/example/leo/fitnessdiy/SitupActivity.java

app/src/main/res/drawable/beach_theme.jpg

app/src/main/res/drawable/natural_theme.jpg

app/src/main/res/layout/activity_level.xml

app/src/main/res/layout/activity_setting.xml