When you start making apps for iOS, it’s really important to know about the app life cycle. This is the series of steps that shows what happens to your app from when it opens to when it closes. Let’s break down these steps in a simple way:
This is the first step. Here, your app isn’t open at all. It will move to the next step when someone taps on the app icon.
Next, your app is open but not really doing anything. This happens when something interrupts it, like a phone call or a notification. Even though your app is still there in memory, it’s getting ready to do something again.
Now, this is the best part! Your app is open and the user can interact with it. It's like when you’re fully focused on a task. Everything is working well, and you want to make sure your app runs smoothly during this time since it's the most visible part of the life cycle.
If the user leaves your app, it goes into the background. Here, your app can still do some work, like finishing a task or gathering information. But be careful! It only has a short time to do this (usually just a few seconds) before the system might pause it. During this time, try to save battery and not use too many resources.
In this step, your app is paused. It’s still there in memory, but it's not doing anything right now. The cool thing is that it can quickly go back to being active without needing to start over. The system takes care of these paused apps, but if it needs more resources, it might close them without any warning.
Throughout these steps, it’s really important to handle changes carefully. You should use special methods in your AppDelegate or SceneDelegate to keep track of what’s happening. Many developers also use notifications to help save data, update the user interface, or keep track of user sessions based on the current step.
Knowing these steps helps not just with coding but also with making a better experience for users. For example, you can save their progress or handle their data carefully. It might seem tricky at first, but with practice, it all comes together nicely. Happy coding!
When you start making apps for iOS, it’s really important to know about the app life cycle. This is the series of steps that shows what happens to your app from when it opens to when it closes. Let’s break down these steps in a simple way:
This is the first step. Here, your app isn’t open at all. It will move to the next step when someone taps on the app icon.
Next, your app is open but not really doing anything. This happens when something interrupts it, like a phone call or a notification. Even though your app is still there in memory, it’s getting ready to do something again.
Now, this is the best part! Your app is open and the user can interact with it. It's like when you’re fully focused on a task. Everything is working well, and you want to make sure your app runs smoothly during this time since it's the most visible part of the life cycle.
If the user leaves your app, it goes into the background. Here, your app can still do some work, like finishing a task or gathering information. But be careful! It only has a short time to do this (usually just a few seconds) before the system might pause it. During this time, try to save battery and not use too many resources.
In this step, your app is paused. It’s still there in memory, but it's not doing anything right now. The cool thing is that it can quickly go back to being active without needing to start over. The system takes care of these paused apps, but if it needs more resources, it might close them without any warning.
Throughout these steps, it’s really important to handle changes carefully. You should use special methods in your AppDelegate or SceneDelegate to keep track of what’s happening. Many developers also use notifications to help save data, update the user interface, or keep track of user sessions based on the current step.
Knowing these steps helps not just with coding but also with making a better experience for users. For example, you can save their progress or handle their data carefully. It might seem tricky at first, but with practice, it all comes together nicely. Happy coding!