Lesson Plan: Unit - 03Subject: P15A2AAD - Android Application Development
Topic of Study: Displaying Text with Spinner Control
Grade/Level: Master of Computer Applications
Objective: To understand the Spinner and its properties
Time Allotment: 55 Minutes
- Giving Users input choice using Spinner Control
- You want to limit the choices available for users to type.
- Exa. if users are going to enter the name of a state.
- You could do this by letting them type something and then blocking invalid entries
- You can also provide similar functionality with a Spinner control.
- As with the auto-complete method, the possible choices for a spinner can come from an Adapter.
- You can also set the available choices in the layout definition by .using the entries attribute with an array resource
- The Spinner control isn’t actually an EditText.
- Exa. Step 01
- Exa. Step 02
- Because the Spinner control is not a TextView, but a list of TextView objects, you can’t directly request the selected text from it.
- Instead, you have to retrieve the selected View and extract the text directly:
- Exa.
- Exa. Step 03 (Sample code of .Java file)
