Use application in Android to share data between multiple activities

Source: Internet
Author: User

In Android, the application is only used to save the application.ProgramContext, the core is activity. However, we can simply define public static variables in the application to call multiple activities for data sharing.CodeAs follows:

Public class MyApp extends application {public static hashmap <string, Object> hashmap = new hashmap <string, Object> (); public static arraylist <string> strlist = new arraylist <string> (); public static arraylist <integer> intlist = new arraylist <integer> ();}
Hashmap <string, Object> can be used to store any data type, or arraylist can be used to store simple data types. You only need to simply use MyApp. hashmap and MyApp. strlist.
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