Ios App In Background

When your app is in the background it should do as little as possible and preferably nothing.

Ios app in background. If your app enters the background to process an important event process the event and exit as quickly as possible. Instead just disable background refresh for such apps. If you re concerned about iphone and ipad apps tracking you or transmitting data when they re not in use as discussed in a recently popularized washington post article an easy way to prevent much of that type of activity is to disable a feature on ios called background app refresh.

And if an app communicates to bluetooth accessories like the pebble app communicating with the pebble smartwatch it can stay awake permanently in the background. As compiled by macrumors numerous ios 13 users say the os is killing apps in the background far too aggressively in what appears to be a memory management issue. That has resulted in some users.

Disable background refresh for an app and it won t have permission to run in the background. Application states and application delegate methods. To do this open the settings screen tap general and tap background app refresh.

If your app was previously in the foreground use the background transition to stop tasks and release any shared resources. If an app allows you to make data based phone calls like whatsapp or skype calls in the background it can stay active using cpu for the duration of the call. Background fetch is a mode introduced in ios 7 that lets your app appear always up to date with the latest information while minimizing the impact on battery life.

If an app plays audio in the background over airplay or through the phone s speakers ios permits it to run in the background until it ceases to play the music. Prior to background fetch you might do this by getting new data in viewwillappear. Suppose for example you were implementing a news feed in your app.

To prevent an app from running in the background in this way you don t need to use the multitasking view.