September 2018
Intermediate to advanced
928 pages
24h 36m
English
Content preview from Professional Android, 4th Edition
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6Intents and Broadcast Receivers
USING INTENTS AND BROADCAST RECEIVERS
Intents are a message-passing mechanism you can use within your application, between applications, and between the system and your application. Intents are used to do the following:
- Explicitly start a particular Service, Broadcast Receiver, Activity, or sub-Activity using its class name
- Start an Activity, sub-Activity, or Service to perform an action with (or on) a particular piece of data
- Return information from a sub-Activity
- Broadcast that an event has occurred
Intents are a fundamental part of the Android OS, they’re also quite unique to Android, and as such can be a confusing concept to master.
Intents can be used to send information among any application components installed on an Android device, no matter which application they’re a part ...
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