AutoCompleteTextView
The display drop-down list displays similar content
MultiAutoCompleteTextView
Support multiple selection (e.g. email selection)
rendering
AutoCompleteTextView (e.g. Baidu search)
The unique properties
Android: completionThreshold = “2”
Sets how many characters are entered to be automatically matched
steps
1. Declare variables in MainActivity first
Initialize a variable
Error: findViewById returns the View parent class, which needs to be cast.
2. Write an adapter
Use string
3. Write data sources
4. Bind the Adapter to the AutoCompleteTextView
5. Set special properties in activity_mian. XML
MultiAutoCompleteTextView support alternative (such as email selection)
Special attributes
mttxt.setTokenizer(newMultiAutoCompleteTextView.CommaTokenizer());
Specify what delimiter indicates closure
1. Add the option
2. Initialize it in mainActivity. Java
3. Use the previous data source directly
4. Set the delimiter (comma)
(PS: this is directly connected to the new class written in the horse light)