Apple has very strict guidelines for how—and when—apps can run in the background.
The following are the only scenarios in which a third-party iOS app can use CPU in the background.
Any app can use "Background Fetch" (aka Background app refresh) to fetch content in the background for a few seconds, about once a day (on a timeframe ...
FWIW, Apple has always allowed some of their own apps or services to persist in the background, i.e. the Phone, Mail, push notifications, Find My iPhone, and so on, based on the need and functionality.
One thing to consider is that multitasking today on iOS is still limited, especially when compared to desktop operating systems (and perhaps some Android ...
The setting to enable or disable Background App Refresh is applicable for both WiFi and cellular. There is no way to disable it only for cellular data. So yes, apps that use location services can drain your cellular data plan.
Restrict which apps are allowed to use background refresh. You can thus limit the amount of data usage by ...
Apps are paused when backgrounded and resume when opened. If an app does not correctly resume to the state it was left in, this is something only the developer can fix.
It's not possible to run an app in the background as if it was in the foreground. Apps can only run a limited set of tasks in the background for a short period of time per Apple guidelines, ...
Background App Refresh allows apps to download information in the background under certain conditions.
After you switch to a different app, some apps run for a short period of time before they're set to a suspended state. Apps that are in a suspended state aren’t actively in use, open, or taking up system resources. With Background App ...
Initially, iOS did not have multitasking. Their first attempt was in 2010 (holy crap!). The iPhone just didn't have enough ram and wasn't optimized for it. In 2010, Apple enabled the core apps to multitask, but not 3rd party. I remember jailbreaking my device to bypass that to allow all apps to multitask, but it was buggy. iOS has come a long way folks, with ...
The easiest way to run a command in the background is to put an & at the end of the command. It will start, and return you to the prompt immediately.
Another way would be to suspend the current process with CTRLz, and type bg, the corollary to the fg command you already looked up.
Yes, the applications will continue to run in the background. This happens with Fast User Switching and when Locking then logging in.
You can see the other users' applications are running through the Activity Monitor application:
Applications > Utilities > Activity Monitor.app
To see other users' applications, select the menu item:
Yes, GPS can be used by more than one app at a time. I frequently use Runkeeper in the background for tracking my movement, and Zombies Run or Geocaching in the foreground. I've never had any issues with any of them not getting the data.
Double click the home button. Double tapping without clicking will do as you have observed.
Be sure to depress the home button twice.
The behavior of the double tap is to allow for easy reach of the top of the interface when using one hand.
The OP is talking about an old iPad so mentioning “split screen” will not be available. Something like the mini 2 which is what I have and I have the same issue.
Start Safari as normal so this is the main app.
Start Notes by dragging it from the dock and onto the right of the screen so this becomes the Overlay.
Swipe Notes right and then have a full screen ...
This is for sure an iPad Air 2, correct? It should have TouchID (a fingerprint sensor) on the front.
To verify the model, go to the settings app, General, About:
Model MH2P2LL/A is an iPad Air 2
Other ways to identify your iPad are at https://support.apple.com/en-us/HT201471
With the current version of Chrome (51.0.2704.106 (64-bit)) you can just right-click an url and then open it with the fourth menu choice from top: "Open Link as PROFILE" (your configured Chrome profile).
EDIT: with the current Chrome version: 81.0.4044.92 (Official Build) (64-bit) it's possibile open the link in a different PROFILE when the target profile ...
iOS will kill apps if it needs to.
There's not really much you can do about it, without jailbreaking. iOS will automatically manage an app's memory, and will kill an app if another app requests more memory. Also, apps using a large amount of CPU will cause iOS to kill other apps so that the foreground app always has the best experience.
If you find that it'...
Third parties Apps which are placed on the background won't actively consume resources unless they provide either Location Services, Audio playback or VoIP. As stated on Apple's iOS App Programming Guide:
In iOS, only specific app types are allowed to run in the background:
Apps that play audible content to the user while in the background, such as a music ...
Apps shown as "open" but that are not the foreground app are in the Suspended state (described below), with a couple of exceptions. So the apps you are seeing in the app switcher are generally not actively doing anything.
On a general level, these are the states an app can be in on iOS.
Not running: The app has not been launched or was running but ...
This happens because of a restriction put on all apps performing background tasks, specifically those fetching data. For example, this happens with the Spotify-app as well when it downloads songs for Offline Mode.
There isn't really any way to bypass these restrictions, at least not on a non-jailbroken device. It might be impractical, but the only option is ...
So hours and hour later i have worked out how to listen to my voice memos in iTunes app on my iPhone 5 - i managed to sync them from the voice memos app to my itunes library on my mac but then could not get them back onto my phone to be able to listen to them.
Once you have them in your iTunes library they will appear in a 'Voice Memos' folder
copy the ...
The only option I have found is in Settings -> General -> Background App Refresh that shows all apps that are currently capable and enabled to do the refreshing. Unfortunately there is no indication of which one was active recently.
This depends on several factors and is not generally tied to a fixed time schedule - active usage of the device, push notifications to apps, location based updates and iOS 7's learning ability to optimize based on your usage patterns for apps.
From iOS: Understanding multitasking (bold italic emphasis mine):
Certain tasks or services can continue to run in ...
You can configure Skim to do this by executing
defaults write -app Skim SKAutoReloadFileUpdate -boolean true
Which is a hidden preference:
When this is true, and Skim checks for file updates on disk, the document is automatically reloaded without asking when there are no notes or edits. We don't recommend using this.
Note: Preferences → Sync → Check ...
To launch an app in Finder in the background (hidden) you can use a simple Automator service. Open Automator app, select a service that accepts files or folders in Finder and add a Run Shell Script action with following contents:
for f in "$@"
open "$f" --hide
Save the service as Open in background. Open System Preferences./ Keyboard / ...
Do not confuse Suspended with Not Running. Suspended means the app is still in memory but otherwise not utilizing any resources. Not Running means the app is not in memory at all due to being involuntarily terminated, either because the system required resources for a foreground app, or because the user force-quit the app.
Background App Refresh (BAR) =/= "...
With background refresh an app more or less lets iOS take care of data refresh. If this is turned off it‘s up to the application on how data gets refreshed (on activation, on user demand etc). There is no general mechanism at work then.
While they will all continue to run, they may not keep doing the same thing. For example, if iTunes is playing a song, it will pause when you switch users. I haven't tried it with the new "Music" app.
All apps can be programmed to know if they have a visible window so they can take actions and do more work in the background or less work in the background. ...
This is related to iPadOS 14 and all apps that screen share will need to update and use a new SDK/API or Apple needs to ship a new update for one app to broadcast the content of another sandboxed app.
On iPadOS 14.0.1 only local recordings can record split screen multitasking, no apps I’ve tested can broadcast. We are evaluating if we use a video capture ...