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In this video, I want to look at the Home button on the iPhone, and the iPod touch. This is the Home button here on the front of the iPhone and its primary purpose is to immediately get you back to your Home screen. Now when the screen is locked, as it currently is here, pressing the Home button is like pressing the Sleep/Wake button. It activates the screen but you still have to slide your finger across this area to unlock the phone. This is the Home screen of the iPhone where you access the various functions and apps that are available. As we'll see later, you can install additional apps, which can be spread out across multiple screens, which you can access by flicking screens to the left.
Pressing the Home button instantly brings you back to the first and main screen no matter how many screens deep you are. If you're running an app, pressing the Home button always brings you back to the Home screen. Pressing the Home button while on the Home screen brings up the Spotlight Search screen where you can search your entire phone for words or phrases. This is useful for quickly looking up info in some email, or finding an address for one of the people in your contacts. Pressing the Home button again takes you back to the Home screen. Double-clicking the Home button, meaning giving it two quick clicks, opens up the multitasking bar at the bottom of the screen, allowing you to switch among different apps.
We'll take a closer look at the multitasking bar in its own movie later in this chapter. Double-clicking the Home button again closes the multitasking bar and keeps you in whichever app you're currently using. While we're here on the home screen, I want to take a moment to discuss how things work here. We've already seen that tapping an icon opens that app and then you can page through your multiple screens of apps, if you have multiple screens, by flicking left and right. Notice as I do that, the four icons at the bottom of the screen stay where they are. This is where you can store up to four apps that you always want immediate access to no matter what screen of applications you're on.
We'll talk about how to customize your app placement later in this chapter. Across the top of the iPhone's Home screen, we see the name of the wireless carrier, in this case, AT&T. Next to that, we see the Wi-Fi symbol indicating I'm currently connected to a WiFi network. You'll see the same thing on the iPod touch. On the iPhone however, you may also see a 4G here indicating that you're on a 4G cellular network; or possibly the letter E indicating you're on AT&T's slower EDGE data network; or even LTE if you're on the latest generation of high-speed cellular network. If you're not in the U.S., you may see other icons or representations of your wireless carrier's network.
On the iPod touch, you'll only ever see the Wi-Fi symbol if you have Wi-Fi turned on, which we'll talk about how to do in an upcoming movie. In the center is the current time, and to the right is the battery indicator, which will show you how much battery time remains or if you're currently plugged into a charger. Other icons may appear across the top from time to time, depending on what you're doing. For instance, if you've turned on the alarm clock function in the Clock app, you'll see a small clock letting you know that the alarm is set, or if you have a Bluetooth headset connected, you'll see a Bluetooth icon. I'll be pointing more of these out as they come up throughout the course. But for now, that's the extent of what I wanted to cover about the Home button and the Home screen in this movie.
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