iOS 18：10 個新的主螢幕和鎖定螢幕功能

在 iOS 18 中，Apple 徹底改造了主螢幕，引入了允許更多客製化和個性化的設計變更。您可以將圖標放在您想要的位置，更改其大小，並賦予它們新的顏色，此外您還可以隱藏應用程式並更換鎖定螢幕按鈕。

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本指南重點介紹了所有新內容iOS 18 主畫面和鎖定畫面。

重新排列圖示

使用 iOS 18，您可以重新排列主螢幕和應用程式頁面上的應用程式圖示和小部件，並在它們之間留出空間，提供豐富的新佈局選項。

Apple 堅持使用網格系統，因此您只能在網格位置內移動應用程式圖標，但圖標可以放置在網格中周圍有空白區域的任何位置。這聽起來很複雜，但在 iOS 17 中，如果您在主螢幕上添加了新應用程序，它會自動轉到下一個打開的位置。

在 iOS 18 中，您可以選擇放置位置。您可以在應用程式之間設定應用程式圖示大小的空間、全空行和全空列。由於不可見的網格限制，您不能將圖示和小部件放在間距不均勻的地方，因此請記住這一點。

您可以將單個應用程式放在頁面中間，在頂部有一排應用程序，然後在底部的一排應用程式、創建一列應用程式等等。 Apple 創建此設計是為了讓您可以將應用程式和小部件放置在壁紙周圍，並將它們排列成更有用的佈局。

以下是移動圖示的方法：

1. 長按主畫面或應用程式頁面以啟動擺動模式。
2. 將應用程式移至所需的位置。
3. 點擊完成。

增加圖示大小

您可以透過刪除應用程式名稱來在 iOS 18 中使應用程式圖示更大。應用程式名稱到位後，Apple 需要空間來顯示它們，但刪除它們會為更大的圖示和資料夾大小打開大量區域。更改應用程式大小不會改變可見應用程式的數量，它只是刪除文字並用完空白空間。

使用較大的圖標，您仍然可以獲得最多六個圖標行，每行四個圖標，與打開圖標名稱時所受到的限制相同。若要變更圖示大小，請依照下列步驟操作：

1. 長按主畫面或應用程式頁面。
2. 點選「編輯」。
3. 點選「自訂」。
4. 選擇“小”以打開應用程式名稱，或大以將其關閉。

請注意，此設定是通用的，因此您不能在一個應用程式頁面上使用小圖標，而在不同的應用程式頁面上使用大圖標。

更改小部件大小

您可以直接更改小部件的大小從主螢幕，無需進入自訂選項。小部件現在在角落裡有一個白色的圓條，您可以拖曳它來放大或縮小它們。

1. 長按主螢幕或應用程式頁面即可進入擺動模式。
2. 使用用手指將小部件調整為更小或更大。

您僅限於任何給定小部件可用的最小和最大尺寸。例如，電池小部件的大小可以是四個應用程式圖示的大小、兩行中的六個水平應用程式圖示的大小，或者是四個圖示寬、四個圖示高的正方形形狀。當您調整電池小部件的大小時，您只能使用這些尺寸選項，但無需進入完整的小部件設定來更改大小。

小部件仍會以相同的方式添加到您的主螢幕和應用程式頁面，儘管一些標籤已經改變了。長按並點擊“編輯”，然後選擇“新增小工具”選項。由於有了新的自訂選項，比以前多了一次點擊。

如果應用程式有小部件，您還可以長按其圖示來查看小部件選項，將應用程式的圖示變成小部件。

新小部件

Apple 在 iOS 18 中添加了一個新的「健康」小部件，該小部件顯示來自「健康」應用程式和 Apple Watch 中的新「生命體徵」功能的資訊。它提供了每日生命體徵或每週生命體徵的概述，此外還有一個用於週期追蹤的新小部件。

Vitals aggregates information from the Apple Watch to provide a daily readout of how your heart rate, sleep patterns, respiration, and blood oxygen change from day to day and week to week.

There is a new Journal widget as well, with options that provide a writing prompt that you can tap on to open up the app to answer. You can also select a Streaks widget that keeps track of how many days in a row you've used the Journal app.

For the new Training Load feature on Apple Watch, Apple has added a corresponding widget in the Fitness widget section.

In the Home widget section, there are new widgets for electricity usage and electricity rates (a feature coming to select users in iOS 18 later this year).

Dark Mode Icons

Apple's built-in apps have both Light and Dark color options in iOS 18, which allows you to change the color of your icons when you have Dark Mode turned on. The Dark icons are all redesigned with a black background rather than a white or colored background, which makes them blend in better with the Dark Mode setting.

You can turn on Dark icons independently of having Dark Mode enabled, so you can leave Light mode on while using the Dark icon option. You can also set icons to an automatic mode, which means they'll change color depending on whether Dark Mode or Light Mode is active.

Right now, it's only Apple's apps that have a Dark option, but third-party developers will presumably also be able to include two color options for their icons when iOS 18 launches.

To go along with the Dark Mode icons, Apple also introduced a toggle that makes your wallpaper darker. Here's how to change your icon and wallpaper color:

1. Long press on the Home Screen or an app page.
2. Tap on "Edit."
3. Tap on "Customize."
4. Select Automatic, Dark, Light, or Tinted, an option described below. This is also the interface used to change app icon size, and darken your wallpaper (the sun icon).

The wallpaper option makes your chosen wallpaper a bit darker in color, dimming bright shades when enabled. Tapping toggles Light and Dark modes, with Light being your standard wallpaper color.

Icon Tints

In addition to choosing a Dark Mode for your app icons, you can opt to put a tint over all of them, which is an aesthetic that's useful if you want to match a wallpaper.

You cannot change icon colors individually, and the tint changes the shade of all of the icons en masse. You can use an eyedropper to choose a color from your wallpaper, or you can use the two bars to tweak both hue and saturation. Tinting works with all icons because it desaturates and then places a color over the desaturated icon, so you do lose individual colors in app icons and widgets. It's a very monochromatic look.

As with icon size, this is a universal setting so you cannot have different tints for different app pages. Tinting affects not only your app pages and Home Screen, but also the App Library. To change an icon tint:

1. Long press on the Home Screen or an app page.
2. Tap on "Edit."
3. Tap on "Customize."
4. Select Tinted and use the sliders to adjust the tint to your ideal color.

To turn off a tint, follow these same steps and then choose "Light" or "Dark" to get back to the standard app icon colors.

Hiding and Locking Apps

iOS 18 includes a security feature for locking apps or even hiding them entirely from your Home Screen and app pages. A locked app requires a Face ID or Touch ID scan to open, so if someone is using your unlocked iPhone, they still won't be able to open apps you've disabled.

Hiding an app does the same thing as locking it, but goes a step further and removes it from view entirely. You'll only see it in a Hidden folder in the App Library, which also requires authentication to access. Locked and Hidden apps do not show up in searches on the iPhone, they're not accessible by Siri without authentication, and notifications and alerts like calls from the app are disabled, so they're entirely private without authentication.

The option to lock and hide apps is useful for when you need to hand your phone over to someone for viewing photos, playing games, or similar situations.

For a locked app, there is no sign that it's locked until someone attempts to open it, at which point there's a Face ID or Touch ID authentication prompt. For hidden apps, they simply don't show up anywhere except the App Library.

Apps do show up in your App Store purchase/download list, but they don't show up in the Settings app. Settings for hidden apps can be accessed in a separate "Hidden Apps" folder that does require authentication to open up. How to lock or hide an app:

1. Long press on the icon of the app that you want to lock or hide.
2. Tap on "Require Face ID."
3. If you want to simply lock an app, tap on "Require Face ID" again. If you want to hide it, choose "Hide and Require Face ID."
4. Authenticate with a Face ID or Touch ID scan.
5. For a locked app, that's it. For a hidden app, you'll see a screen letting you know that you won't get notifications or calls from the app.
6. Tap "Hide App."

To remove the lock on an app, long press again on the icon on the Home Screen or app page and choose "Don't Require Face ID." You will need to authenticate to turn it off.

To unhide an app, go to the App Library, select the Hidden section, authenticate with Face ID or Touch ID, long press on the app icon, and choose "Don't Require Face ID or "Unhide App." The first option turns off the lock and keeps the app off of the Home Screen, while the second both turns off the authentication requirement and adds it back to the first available opening on an app page.

If you turn off the lock and do not add it back to the Home Screen, you'll need to find it in the App Library to put it back on the Home Screen later.

Lock Screen Updates

Apple didn't make major changes to the Lock Screen because it was just overhauled with iOS 17, but there are a few updates worth noting.

Rainbow Time and Other New Lock Screen Widget Options

With iOS 17, Apple added an option to customize the font and the color of the time on the Lock Screen, and in iOS 18, there's a new rainbow color option that adds a variegated rainbow shade for the time. There are no other changes to font or color options.

Above the time, you can add a new Journal widget that presents a journaling prompt and opens the app when you tap it.

For widget options, there are new Health app Vitals widgets, and new entries for electricity usage and rates. These match the new Home Screen widgets.

Quick Buttons

For the first time, you can change the Flashlight and Camera icons on the Lock Screen, picking something more useful or turning them off entirely.

You can choose any Control Center option for the Lock Screen buttons, including Shortcuts, Dark Mode, Airplane Mode, Remote, Alarm Calculator, Translate, and more. This change ties into a redesign of the Control Center, and it gives you a lot more possibilities for what you can launch from the Lock Screen.

Apple is allowing third-party apps to add Control Center icons, so you can also choose from those. Depending on what you pick, you may need to use Face ID or Touch ID to authenticate before being able to access an app from the Lock Screen in order to preserve user privacy and keep sensitive data from being easily accessible.

To change your Lock Screen buttons, follow these steps:

1. Long press on the Lock Screen after authenticating.
2. Tap on Customize.
3. Tap on Lock Screen.
4. From this interface, tap on the "-" icon to remove any apps that are already assigned to those buttons. If you're doing this for the first time, you'll have the Flashlight and Camera apps set to the default, which need to be removed.
5. From there, tap on the "+" button and choose a new control to add.
6. Tap on Done in the upper right corner.

iOS 18 Wallpaper

There are four new iOS 18 wallpaper options in pink, yellow, azure, and purple with a matching darker colored swoop. These all have a Light Mode and a Dark Mode shade customized by Apple, with the Dark Mode featuring a background glow for the darker part of the design.

You can find the new wallpapers by long pressing on the Lock Screen, and choosing Customize to modify an existing wallpaper or "+" to add a new one entirely.

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