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Send messages to the UI from threads

Send messages to the UI from threads: Android Development: Concurrent Programming
Send messages to the UI from threads: Android Development: Concurrent Programming

You can only communicate with the user interface from the UI, or main thread. If you try to work directly with the UI’s View objects, it’ll cause an exception. But you can send the UI messages by using a Handler object. A message contains a bundle—a collection of key-value pairs. You can create a message and send it to a particular handler, and if the handler is owned by the UI thread. It can interpret the message and take whatever action is required.

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Skill Level Intermediate
1h 52m
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Developer Mobile Apps Android

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