快速响应 (QR) 码^{(Quick Response (QR) codes)}是看起来像迷宫方块的现代条形码，它存储少量数据，如URL^(URLs)、文本或图像。您可以扫描二维码^{(QR Code)}并访问此信息或分享联系信息、WiFi 密码^{(share contact information, WiFi passwords)}或打开网站或指定应用程序的链接。

除了用于商业目的外，二维码还用于社交媒体应用程序。一个很好的例子是 Snapchat 的Snapcodes，您和您的朋友可以使用它来互相添加为朋友，而不是手动搜索朋友。^{(searching for friends)}

如果您收到了二维码，或者您最喜欢的商店提供只有在扫描二维码后才能访问的优惠，您可以使用智能手机轻松访问其背后的隐藏信息。

无论您出于何种原因使用 QR 码，我们都将向您展示如何在 iPhone 和Android设备上扫描 QR 码并读取代码内容或与之交互。

如何在 iPhone 和 Android 上扫描二维码^{(How to Scan a QR Code on iPhone and Android)}

如果您想在 iPhone 或Android设备上扫描 QR 码，有多种方法可以做到，包括使用本机相机应用程序或第三方 QR 码扫描仪。

随着智能手机和二维码变得越来越普遍，扫描过程将取决于您拥有的型号。

如何在 iPhone 上扫描二维码^{(How to Scan a QR Code on iPhone)}

您可以使用iPhone 的相机应用程序或^{(iPhone’s Camera app)}控制中心^{(Control Center)}的原生 QR 码阅读器对 QR 码中的信息进行解码。

使用相机应用程序扫描二维码^{(Scan a QR Code Using the Camera App)}

1. 转到 iPhone 的主^(Home)屏幕并打开相机^(Camera)应用程序。您也可以从锁定屏幕^{(Lock screen)}或控制中心^{(Control Center)}打开相机。

1. 接下来，点击后置摄像头并将二维码放置在取景器中。

1. 您的 iPhone 将检测并扫描二维码，然后显示通知。点击通知^{(notification)}以查看与代码相关的信息并运行您在其中找到的说明。

1. 如果^(I)未出现通知弹出窗口，请转到设置^{(Settings )}>相机^{( Camera)}并切换扫描二维码^{(Scan QR Codes)}开关以启用它。如果它变为绿色，则该设置已启用。

使用直接二维码阅读器扫描二维码^{(Scan a QR Code Using the Direct QR Code Reader)}

原生QR 码^{(QR Code)}功能在运行 iOS 11 或更高版本的 iPhone 上可用。您可以使用它比使用相机^(Camera)应用程序更快地扫描 QR 码。

1. 为此，请打开iPhone 上的控制中心。^{( Center)}对于 iPhone SE、iPhone 8 或更早机型，从屏幕底部边缘向上滑动^{(swipe up from the bottom edge)}，对于 iPhone X 或更新机型，从屏幕右上方向下滑动^{(swipe down from the upper right side)}以访问控制中心^{(Control Center)}。  

1. 接下来，点击二维码阅读器^{(QR Code reader)}，扫描您收到的代码并按照代码上的说明进行操作。

1. 如果 QR 码阅读器图标未出现在 iPhone 的控制中心^{(Control Center)}中，请转到设置^{(Settings )}>控制中心^{( Control Center )}>自定义控件^{( Customize controls)}，然后转到更多控件^{(More Controls)}部分。

1. 点击二维码阅读器^{(QR Code Reader)}（或扫描二维码^{(Scan QR Code)}）旁边的green + (plus) icon以添加它。您可以随时从控制中心^{(Control Center)}访问该功能。

与二维码关联的相应网站或应用程序将自动启动，以便您访问所需的信息。

有关如何使用 iPhone 进行扫描的^{(how to scan with an iPhone)}更多信息，请参阅我们用于扫描文档和图像的最佳 iOS 扫描仪应用程序^{(best iOS scanner apps to scan documents and images)}列表。 

如何在 Android 上扫描二维码^{(How to Scan a QR Code on Android)}

您还可以使用Android设备的内置摄像头扫描二维码。但是，如果您使用的是三星 Galaxy^{(Samsung Galaxy)}设备，则有更多选择，例如使用 Bixby^{(using Bixby)}、图库^(Gallery)应用程序或三星 Internet^{(Samsung Internet)}网络浏览器。

注意^(Note)：本指南中的说明适用于在Android OS版本 9.0 ( Pie )上运行的Samsung S8+根据您拥有的Galaxy^(Galaxy)型号，大多数步骤可能相似。

使用相机应用程序扫描二维码^{(Scan a QR Code Using the Camera App)}

您可以使用Android设备上的^(Android)相机^(Camera)应用程序指向 QR 码并立即访问联系信息、地理坐标、短信或URL链接。

1. 为此，请从屏幕顶部向下滑动，然后点击QR 扫描仪^{(QR Scanner)}图标。这样做将自动启动相机^(Camera)应用程序。

注意^(Note)：QR 扫描仪^{(QR Scanner)}功能仅适用于运行Android 9.0 ( Pie ) 或更高版本的Galaxy设备。^(Galaxy)

1. 将二维码^{(QR Code)}放置在框架内。二维码^{(QR Code)}扫描器将自动检测、扫描代码并显示带有代码说明的弹出通知。

使用 Bixby Vision 扫描二维码^{(Scan a QR Code Using Bixby Vision)}

1. 为此，请在您的Android设备上打开^(Android)相机^(Camera)应用程序，然后点击Bixby Vision。

1. 接下来，滚动并点击屏幕底部的二维码扫描仪图标。^{(QR Code)}

1. 扫描二维码，然后点击屏幕上显示的弹出消息。^{(popup message)}

1. 如果您的相机应用无法扫描二维码^{(QR Code)}，请检查您的设备是否启用了该设置。为此，请点击右上角的更多^(More)（三个点），然后选择设置^(Settings)。

1. 接下来，点击二维码^{(QR Code)}开关将其打开^(ON)，然后再次尝试扫描二维码。

注意^(Note)：您也可以打开Bixby应用程序，从图库^(Gallery)卡中选择带有二维码的图像，点击^{(QR Code)}Bixby Vision图标并使用^{(Bixby Vision)}二维码^{(QR Code)}功能扫描二维码。

使用 Gallery App 扫描二维码^{(Scan a QR Code Using the Gallery App)}

您还可以使用Android设备上的^(Android)Gallery应用程序扫描QR 码^{(QR Code)}。此方法不仅适用于多个Android设备品牌和型号，而且当您想在 Android 设备上查找 WiFi 密码^{(find your WiFi password on an Android device)}时也很方便。

1. 为此，请拍摄QR 码的照片或屏幕截图，在^{(QR Code)}Gallery应用程序中将其打开，然后点击屏幕底部的Bixby Vision 图标。^(icon)

1. 接下来，让Bixby Vision扫描并读取代码。

1. 点击弹出通知^{(popup notification)}以访问存储在 QR 码中的信息。

使用 Samsung Internet Web Browser 扫描 QR 码^{(Scan a QR Code Using Samsung Internet Web Browser)}

如果您的Samsung Galaxy设备缺少Bixby Vision，您仍然可以通过Samsung Internet Web 浏览器或Samsung Internet ( Beta ) 扫描二维码。该应用程序通常预装在较新的三星 Galaxy^{(Samsung Galaxy)}设备上，但如果您将其卸载或在应用程序^(Apps)托盘中找不到它，您可以从Google Play 商店下载它。^{(Google Play Store)}

1. 要使用Samsung Internet或其Beta版本扫描QR 码^{(QR Code)}，请打开应用程序并点击菜单^(menu)图标。

1. 点击设置^(Settings)。

1. 接下来，点击有用的功能^{(Useful Features)}。

1. 点击QR 码扫描仪^{(QR Code scanner)}开关将其切换为On。

注意^(Note)：确保您在最新版本的Samsung Internet（或Beta）应用程序上运行以获取QR 码^{(QR Code)}扫描器选项。您可以通过转到Google Play 商店^{(Google Play Store)} 设置^{(Settings )}>自动更新应用程序^{( Auto-update apps)}，然后选择您喜欢的自动更新设置（仅通过网络或WiFi）为您的应用程序启用自动更新。

1. 返回三星互联网^{(Samsung Internet)}浏览器主页并点击屏幕右上角的二维码扫描仪^{(QR Code scanner)} 图标。^(icon)

1. 将 QR 码放置在引导线^{(guide lines)}内，以供扫描仪检测和扫描。完成后，您将被自动重定向到网站或应用程序。

如何使用第三方二维码扫描仪扫描手机上的二维码^{(How to Scan QR Codes on Your Phone Using a Third-Party QR Code Scanner)}

如果您在 iPhone 或Android智能手机上使用上述任何一种方法都无法访问二维码^{(QR Code)}扫描仪，您可以下载并安装第三方二维码^{(QR Code)}扫描仪。

有多种适用于 iPhone 和Android的^(Android)QR 码^{(QR Code)}扫描仪应用程序，包括Google Lens、Kaspersky QR Scanner、NeoReader QR & Barcode Scanner、 QR Code Reader ϟ/QR Reader。

轻松读取二维码^{(Read QR Codes Easily)}

如今，二维码无处不在，但并非所有二维码都是合法的。出于安全原因，请确保您只扫描来自受信任公司或来源的二维码。黑客可以将代码链接到最初看起来合法的恶意网站，但在您尝试登录该网站时收集您的敏感数据。 

在输入您的登录凭据^{(login credentials)}之前检查该站点的URL ，并保护自己免受黑客^{(protect yourself from hackers)}或身份盗用。

您^(Were)是否能够使用本指南在您的 iPhone 或Android设备上扫描^(Android)二维码？^{(QR Code)}通过在下面发表评论，让我们知道什么对您有用。

How to Scan a QR Code on iPhone and Android

Quick Response (QR) codes are modern barcodes that look like maze squares, which store small amounts of data like URLs, text or images. You can scan the QR Code and access this information or share contact information, WiFi passwords, or a link to open a website or designated app.

Besides being used for business purposes, QR codes are also used on social media apps. A good example is Snapchat’s Snapcodes, which you and your friends can use to add each other as friends instead of searching for friends manually.

If you received a QR code or your favorite store has offers that are only accessible after scanning a QR code, you can easily access the hidden information behind it using your smartphone.

Whatever your reason for using a QR code, we’ll show you how to scan a QR code on an iPhone and Android device and read or interact with the code’s contents.

How to Scan a QR Code on iPhone and Android

If you want to scan a QR code on iPhone or Android devices, there are different ways to do it, including using the native camera app or third-party QR code scanners.

The scanning process will depend on which model you own, as smartphones and QR codes have become more ubiquitous.

How to Scan a QR Code on iPhone

You can decode the information in a QR code using your iPhone’s Camera app or the native QR code reader in the Control Center.

Scan a QR Code Using the Camera App

1. Go to your iPhone’s Home screen and open the Camera app. You can also open the Camera from the Lock screen or Control Center.

1. Next, tap the rear facing camera and position the QR code to appear in the viewfinder.

1. Your iPhone will detect and scan the QR code, and then display a notification. Tap the notification to see the information associated with the code and run the instructions you find therein.

1. If the notification popup doesn’t appear, go to Settings > Camera and toggle the Scan QR Codes switch to enable it. If it turns green, the setting is enabled.

Scan a QR Code Using the Direct QR Code Reader

The native QR Code feature is available on iPhones running iOS 11 or later. You can use it to scan a QR code faster than you would with the Camera app.

1. To do this, open the Control Center on your iPhone. For iPhone SE, iPhone 8 or earlier, swipe up from the bottom edge of your screen, and for iPhone X or later models, swipe down from the upper right side of the screen to access the Control Center.  

1. Next, tap on the QR Code reader, scan the code you received and follow the instructions on the code.

1. If the QR code reader icon doesn’t appear in your iPhone’s Control Center, go to Settings > Control Center > Customize controls and then go to More Controls section.

1. Tap the green + (plus) icon next to the QR Code Reader (or Scan QR Code) to add it. You can access the feature from the Control Center anytime you want.

The corresponding website or app associated with the QR code will automatically launch so you can access the information you want.

For more on how to scan with an iPhone, see our list of the best iOS scanner apps to scan documents and images. 

How to Scan a QR Code on Android

You can also scan QR codes with your Android device using the built-in camera. However, if you’re using a Samsung Galaxy device, you have more options such as using Bixby, the Gallery app or the Samsung Internet web browser.

Note: Instructions in this guide apply to Samsung S8+ operating on Android OS version 9.0 (Pie). Most of the steps may be similar depending on the Galaxy model you have.

Scan a QR Code Using the Camera App

You can use the Camera app on your Android device to point at the QR code and instantly access contact information, geo coordinates, text messages or URL links.

1. To do this, swipe down from the top of your screen and tap the QR Scanner icon. Doing this will automatically launch the Camera app.

Note: The QR Scanner feature is only available to Galaxy devices running Android 9.0 (Pie) or later versions.

1. Position the QR Code within the frame. The QR Code scanner will automatically detect, scan the code and display a popup notification with the instructions in the code.

Scan a QR Code Using Bixby Vision

1. To do this, open the Camera app on your Android device and tap Bixby Vision.

1. Next, scroll across and tap the QR Code scanner icon at the bottom of your screen.

1. Scan the QR Code and then tap the popup message that appears on your screen.

1. If your Camera app can’t scan the QR Code, check if the setting is enabled on your device. To do this, tap More (three dots) at the top right corner and select Settings.

1. Next, tap the QR Code switch to toggle it ON and try to scan the code again.

Note: You can also open Bixby app, select the image with the QR Code from the Gallery card, tap the Bixby Vision icon and scan the code using the QR Code feature.

Scan a QR Code Using the Gallery App

You can also use the Gallery app on your Android device to scan a QR Code. Not only does this method work with several Android device brands and models, but it also comes handy when you want to find your WiFi password on an Android device.

1. To do this, take a picture or screenshot of the QR Code, open it in the Gallery app and then tap the Bixby Vision icon at the bottom of your screen.

1. Next, allow Bixby Vision to scan and read the code.

1. Tap the popup notification to access the information stored in the QR code.

Scan a QR Code Using Samsung Internet Web Browser

If your Samsung Galaxy device lacks Bixby Vision, you can still scan a QR code through the Samsung Internet web browser or Samsung Internet (Beta). The app is usually pre-installed on newer Samsung Galaxy devices, but you can download it from Google Play Store if you uninstalled it or can’t find it in your Apps tray.

1. To scan a QR Code using Samsung Internet or its Beta version, open the app and tap the menu icon.

1. Tap Settings.

1. Next, tap Useful Features.

1. Tap the QR Code scanner switch to toggle it On.

Note: Make sure you’re running on the latest version of the Samsung Internet (or Beta) app to get the QR Code scanner option. You can enable auto-updates for your apps by going to Google Play Store Settings > Auto-update apps and then select your preferred auto-update settings (over network or WiFi only).

1. Go back to the Samsung Internet browser home page and tap on the QR Code scanner icon at the top right side of your screen.

1. Position the QR code within the guide lines for the scanner to detect and scan it. Once done, you’ll be redirected automatically to the website or app.

How to Scan QR Codes on Your Phone Using a Third-Party QR Code Scanner

If you can’t access the QR Code scanner using any of the above methods on your iPhone or Android smartphone, you can download and install a third-party QR Code scanner.

There are several QR Code scanner apps available for iPhone and Android including Google Lens, Kaspersky QR Scanner, NeoReader QR & Barcode Scanner, QR Code Reader ϟ/QR Reader.

Read QR Codes Easily

QR codes are everywhere these days but not all of them are legit. Make sure you only scan QR codes from trusted companies or sources for security reasons. Hackers could link the codes to malicious sites that look legit at first but instead gather your sensitive data as you try to sign in to the website. 

Check the site’s URL before entering your login credentials and protect yourself from hackers or identity theft.

Were you able to scan a QR Code on your iPhone or Android device using this guide? Let us know what worked for you by leaving a comment below.

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