Lesson Plan: Unit - 03
Subject: P15A2AAD - Android Application Development
Topic of Study: Using Indicators to Display Data to Users
Grade/Level: Master of Computer Applications
Objective: To understand Indicators to Display Data to Users with properties and events
Time Allotment: 55 Minutes
- Using Indicators to Display Data to Users
- The Android SDK provides a number of controls that can be used to visually show some form of information to the user.
- These indicator controls include progress bars, clocks, and other similar controls.
- Exa. of Rating Bar
- Exa. of Seek Bar
- Exa. of Progres Bar
- Using Progressbar
- The Android SDK provides several types of progress bars.
- Exa.
- The default style is for a medium-size circular progress indicator; not a “bar” at all.
- The other two styles for indeterminate progress bar are progressBarStyleLarge and progressBarStyleSmall.
- This style animates automatically.
- We can set the attribute for max in this sample to 100.
- Exa. of XML Code
- Exa. of JAVA Code
- Using Seek Bar
- You accomplish this by using the SeekBar control provided by the Android SDK.
- SeekBar is useful for allowing a user to set a value, such as the volume.
- Exa.
- It’s like the regular horizontal progress bar, but includes a thumb, or selector, that can be dragged by the user.
- A default thumb selector is provided, but you can use any drawable item as a thumb.
- Exa. of XML Code
- Exa. of JAVA Code
- Using Rating bar
- RatingBar has a more specific purpose: showing ratings or getting a rating from a user.
- By default, this progress bar uses the star paradigm with five stars.
- A user can drag across this horizontal to set a rating.
- A program can set the value, as well.
- Exa. of XML Code
- Exa. of JAVA Code
