In what ways can an application be brought out of Suspended state and moved to the background?

In an iOS application, it enters the Suspended state when it is not active and not executing code. To bring the application out of Suspended and move it to the background, you can:

• Use local notifications that activate the app when tapped by the user.
• Schedule Background Fetch so the system periodically wakes the app to update data.
• Use Background Tasks (BGTaskScheduler) to perform tasks in the background.

However, you cannot directly bring the app out of Suspended — this is controlled by the system. You can only set up events that allow the system to activate the app, such as notifications or system events.