alt="check"/> Discover Control Center
Now it’s time to get into even more aspects of using the iPhone and its interface (how you interact with your device).
In this chapter, you look at updating your iOS version (the operating system that your iPhone uses), multitasking, checking out the cameras, discovering the apps that come preinstalled on your iPhone, and more.
Update the Operating System to iOS 15
This book is based on the latest version of the iPhone operating system at the time of this writing: iOS 15. To be sure that you have the latest and greatest features, update your iPhone to the latest iOS now (and do so periodically to receive minor upgrades to iOS 15 or future versions of the iOS). If you’ve set up an iCloud account on your iPhone, you’ll receive an alert and can choose to install the update or not, or you can update manually:
1 Tap Settings.Be sure you have Wi-Fi enabled and that your phone is connected to a Wi-Fi network to perform these steps.
2 Tap General.
3 Tap Software Update (see Figure 3-1).Your iPhone checks to find the latest iOS version and walks you through the updating procedure if an update is available.
Learn App Switcher Basics
App Switcher in iOS 15 lets you easily switch from one app to another without closing the first one and returning to the Home screen. This is accomplished by previewing all open apps and jumping from one to another; you can completely quit an app by simply swiping it upward. To learn the ropes of App Switcher, follow these steps:
1 Open an app.
2 Press the Home button twice. Or for iPhone models without a Home button, drag up from the very bottom of the screen and pause a moment with your finger still on the screen. App Switcher appears and displays a list of open apps (see Figure 3-2).FIGURE 3-2
3 To locate another app that you want to switch to, flick to scroll to the left or right.
4 Tap an app to switch to it.
Examine the iPhone Cameras
iPhones have front- and back-facing cameras. You can use the cameras to take still photos (covered in more detail in Chapter 19) or shoot videos (covered in Chapter 20).
For now, take a quick look at your camera by tapping the Camera app icon on the Home screen. The app opens, as shown in Figure 3-3.
You can use the controls on the screen to
Switch between the front and rear cameras.
Change from still camera to video camera operation by using the slider at the bottom of the screen.
Take a picture or start recording a video.
Choose a 3- or 10-second delay with the timer icon.
Change aspect ratios.
Turn HDR (high dynamic range for better contrast) on or off.
Tap the flash icon to set the flash to On, Off, or Auto.
Use color filters when taking photos or videos.FIGURE 3-3
Take a burst of photos by tapping and dragging left or down (depending on the phone’s orientation) on the camera’s button. A small photo count will display above the button to show how many photos you’ve taken.
Open previously captured images or videos.
When you view a photo or video, you can use an iPhone sharing feature to send the image by AirDrop (iPhone 5 and later), Message, Notes, Mail, and other options (depending on which apps you’ve installed). You can also share through iCloud Photo Sharing, a tweet, Facebook, Instagram, and other apps.
You can do even more things with images: Print them, create a slideshow, use a still photo as wallpaper (that is, as your Home or lock screen background image), assign a still photo to represent a contact. See Chapters 19 and 20 for more detail about using the iPhone cameras.
Take a Look at Face ID
Many newer iPhone models don’t have a Home button, so Touch ID (which uses fingerprints to authenticate a user) isn’t available. However, they do use a different — and very cool — method of authenticating a user: Face ID. Face ID uses your iPhone’s built-in cameras and scanners to scan your face and save a profile of it. It then remembers the information and compares it to whoever is facing the iPhone. If the face doesn’t match the profile, the person can’t access the iPhone (unless they know and use your passcode, which you have to set up to use Face ID). Face ID is so advanced that it can even work in total darkness.
