- Linearlayout, Framelayout, Relativelayout, Tablelayout
- Seekbar, Progressbar
- Timepicker, Datepicker
- Image zoom control
- Custom Toast
- CheckBox, RadioButton, RatingBar
- ArrayList, ArrayAdapter
- CustomAdapter, Custom Dialog Box
- SearchView
- ListView
- Expandable ListView
- Send data from Activity to Activity
- Send data from Activity to Fragment
- Send data from Fragment to Activity
- Send data from Fragment to Fragment
- MenuBar, ActionBar, ToolBar
- CardView
- Scroll Tab
- Notification, Alarm
- File Data Storage
- SQLite Database
- SharedPreferences
- Transition Animation
- Converter App (Area, Mass, Temperature)
- Android Studio
- Java
- XML