Application instance of Android spinner component
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Android
Android spinner components
Spinner: drop down component
Usage: the layout is implemented in XML, and the specific data is implemented in Java code;
Knowledge points used:
Array adapter: arrayadapter is used for relationship layer m and C;
Event: onitemselectedlistener;
Case list: view the renderings of the twelve constellations:
XML: the code is as follows:
The Java code is as follows:
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