The document outlines a session on Android UI components, focusing on customizing ListView and other UI features such as ScrollView, CheckBox, and ProgressBar. It emphasizes the importance of good UI design for user engagement and outlines methods for data handling in ListView. The document also includes a brief introduction about the author, Paramvir Singh, an Android developer and trainer.

1. Android
Session 6 - UI

2. Previous Sessions
Permissions
UI Components - ScrollView and ListView

3. Today’s agenda
ListView - more customization, GridView
More UI - CheckBox, ProgressBar, Pickers
...and Some more UI - WebView, Dialogs

4. ListView - Customization

5. ListView - Customization
Add ImageView, Buttons and other views in rows.
Change background, font sizes, font colors etc.
Add animations.

6. Animations

7. ListView - getView()
Inflate row layout
Get reference to the UI components in the row view (TextViews, ImageViews,
Buttons)
Get the Item Object to be used for the row using ‘position’.
Fill the data from Object in the row views.
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8. More UI - CheckBox

9. More UI - ProgressBar

10. More UI - Date Picker and Time Picker

11. WebView
To show HTML content in app.
To show a website url in your app.
Acts as a mini browser embedded in the app.

12. Dialogs

13. Dialogs

14. Dialogs
To show alert messages to user.
To ask for user confirmation before doing some critical task.
To ask user to select an option from given options.
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15. Why Good UI is Important
Smooth performance.
Attracts users and keeps them.
Does not irritate users.
Does what is expected.

16. Hardware
Camera
GPS
Speakers/ Audio Jack
Mic
Screen
Charging point/ usb port
Power Button
Wi-fi

17. Hardware
Volume Button
Battery
Sensors
● Light sensor
● Proximity sensor
● Motion sensors - accelerometer, gravity sensors
● Orientation sensors
Finger scanner

18. About Me
Paramvir Singh, Android Developer and Trainer
paramvir.singh88@gmail.com
https://in.linkedin.com/in/paramvir-singh-android-developer-b45b5321