Asynchronous updating ramsey and beth halloway dating

Posted by / 06-Jan-2018 15:54

Asynchronous updating

When you run a time-consuming section of code on the user interface thread, it blocks other actions from occurring.To a user, this looks like the application has frozen.Consequently, in this example, it makes sense to add actions for the start and the return of my API call.I’ll also abstract the logic of the API into a utility file instead of handling it directly in a view or action.Here, the user can select a subreddit to display: These were the actions governed by the user interaction.We will also have another kind of action, governed by the network requests.

This means that user events in a view and the return of an API call are both updating the application state by calling an action to start the update process.If a user performs an action while the user interface thread is blocked, and the application doesn’t respond within 5 seconds, the Android system will show an “Application Not Responding” dialog: If you attempt to make a network call on more recent versions of Android (Honeycomb and newer) your application will actually crash, as these newer versions are much stricter about misusing the user interface thread.Anything that makes your app crash (or users think it’s crashed) can definitely be called “Ugly”.When writing Android code, there are many situations in where you’ll need to make network calls.There are several different ways of performing these network calls, and after reviewing them all, we’ve determined some are good, some are bad, and one in particular is just plain ugly.

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To avoid freezing and crashing of an Android application, network calls need to be performed in the background.