Google Assistant是一款非常智能且实用的应用程序，可让Android用户的生活更轻松。它是您的个人助理，它使用人工智能(Artificial) 来(Intelligence)优化您的用户体验。它可以用于多种实用目的，例如管理您的日程安排、设置提醒、拨打电话、发送短信、搜索网络、讲笑话、唱歌等。最重要的是，您甚至可以与它进行简单而诙谐的对话。它会了解您的偏好和选择，并逐渐改进自己。因为它是一个人工智能（人工智能(Artificial Intelligence))，随着时间的推移，它会不断变得更好，并且变得越来越有能力做更多的事情。换句话说，它不断地添加到它的功能列表中，这使它成为Android智能手机的一个有趣的部分。
现在，为了使用Google Assistant，你需要解锁你的手机。默认情况下，谷歌助手(Google Assistant)在屏幕关闭时不起作用。这意味着说“Ok Google”或“Hey Google”不会解锁你的手机，而且理由也很充分。这背后的主要目的是保护您的隐私并确保您设备的安全。尽管它可能很先进(Advanced)，但使用Google Assistant解锁手机并不那么安全。这是因为本质上，您将使用语音匹配技术(match technology)来解锁您的设备，而且它不是很准确。人们可能会模仿您的声音并解锁您的设备。也可以使用录音和Google Assistant将无法区分两者。
但是，如果安全不是您的首要任务，并且您希望始终保持Google 助理(Google Assistant)开启，即即使屏幕关闭，也有一些解决方法。在本文中，我们将讨论一些技术或方法，您可以尝试在屏幕关闭时使用“Hey Google”或“Ok Google”功能。
屏幕关闭时如何使用 OK Google(How to use OK Google when the screen is off)
1.启用语音匹配解锁(1. Enable Unlock with Voice Match)
现在，此功能在大多数 Android 设备上不可用。您根本无法通过说“Ok Google ”或“Hey Google ”来解锁手机。但是，某些设备（例如Google Pixel 或 Nexus(Google Pixel or Nexus)）具有内置功能，可通过语音解锁您的设备。如果您的设备是这些手机之一，那么您根本不会有任何问题。但谷歌(Google)并未发布任何官方声明提及支持语音解锁的设备名称，以了解您的手机是否具有此功能。只有一种方法可以找到，那就是导航到Google Assistant的(Google Assistant)语音匹配(Voice match)设置. 按照给出的步骤检查您是否是幸运用户之一，如果是，请启用该设置。
1. 打开手机上的设置，然后点击(Settings)Google选项。
2. 在这里，点击账户服务(Account Services)。
3. 其次是搜索、助手和语音(Search, Assistant, and Voice)选项卡。
4. 接下来，单击语音(Voice)选项。
5. 在Hey Google选项卡下，您会找到Voice Match选项。点击它。
6. 现在，如果您找到通过语音匹配(voice match)解锁(Unlock)的选项，请打开(toggle on the switch)旁边的开关。
启用此设置后，您将能够在屏幕关闭时使用Google Assistant 。您可以通过说“Ok Google”或“Hey Google”来触发 Google 助理，因为(trigger Google Assistant by saying “Ok Google” or “Hey Google” as your phone)即使手机已锁定，您的手机也会一直在听您的声音。但是，如果此选项(option isn)在您的手机上不可用，您将无法通过说Ok Google来解锁您的设备。但是，您可以尝试几种解决方法。
2.使用蓝牙耳机(2. Using a Bluetooth Headset)
另一种选择是在屏幕锁定时使用蓝牙耳机(Bluetooth headset)访问Google Assistant 。现代蓝牙耳机(Bluetooth headsets)支持Google Assistant。长按播放按钮(play button)或点击听筒三次等(earpiece three)快捷方式(Shortcuts)应该可以激活Google Assistant。但是，在您开始通过蓝牙耳机(Bluetooth headset)发送命令之前，您需要从设置中启用访问 Google Assistant 的权限。(enable permission to access Google Assistant from the settings.)请按照以下步骤了解如何：
1. 打开手机上的设置，然后点击(Settings)Google选项。
2. 在这里，单击帐户服务(Account Services) ，然后单击搜索、助手和语音选项卡(Search, Assistant, and Voice tab)。
3. 现在点击语音(Voice)选项。
4. 在免提部分下，打开“允许设备锁定的蓝牙请求”旁边的开关。(“Allow Bluetooth requests with device locked.”)
另请阅读：(Also Read:)修复“OK Google”不起作用的6种方法(Ways)
3. 使用安卓汽车(3. Using Android Auto)
屏幕关闭时使用Ok Google的愿望的一个相当不寻常的解决方案是使用Android Auto。Android Auto本质上是一款驾驶辅助应用(driving aid app)。它旨在充当您汽车的GPS 导航和信息娱乐系统(GPS navigation and infotainment system)。当您将手机连接到汽车显示屏时，您可以使用Android的某些功能和应用程序，例如Google 地图(Google Maps)、音乐播放器(music player)、Audible，以及最重要的Google Assistant。Android Auto可让您在Google Assistant的帮助下接听电话和消息。
开车时，您只需说“Hey Google”或“ Ok Google ”即可激活(Ok Google)Google Assistant，然后让它为您拨打电话或给某人发短信(call or text someone)。这意味着在使用Google Auto时，语音激活功能(voice activation feature)始终有效，即使您的屏幕已关闭。您可以利用此优势，并使用 Google Auto(advantage and use Google Auto)作为解决方法，使用Ok Google解锁您的设备。
然而，这有其自身的某些缺点。首先，您需要让Android Auto始终在后台运行。这意味着它会耗尽您的电池并消耗RAM。接下来(Next)，Android Auto旨在用于驾驶，因此它将限制谷歌地图(Google Maps)仅提供驾驶路线建议。您手机的通知中心也将随时被(notification center)Android Auto大量占用。
现在，上面提到的一些问题可以在一定程度上得到缓解。例如，为了处理电池消耗问题(battery consumption issue)，您可以从手机上的电池优化器应用程序中获取帮助。(battery optimizer app)
请按照以下步骤了解如何：
1.在您的设备上打开设置。(Settings)现在点击应用程序(Apps)选项。
2. 点击屏幕右上角的菜单按钮（三个垂直点）(menu button (three vertical dots))。
3. 单击下拉菜单中的特殊访问选项。(Special access)之后，选择电池优化(Battery optimization)选项。
4. 现在从应用程序列表中搜索Android Auto并点击(apps and tap)它。
5. 确保为 Android Auto 选择允许选项( Allow option)。
这样做会在一定程度上减少应用程序消耗的电池电量。一旦解决了这个问题，让我们继续处理通知问题。如前所述，Android Auto通知覆盖了一半以上的屏幕。点击(Tap)并按住这些通知，直到您看到最小化它们的选项。单击最小化按钮(Minimize button)，这将显着减小通知的大小。
但是，最后一个问题是谷歌地图(Google Maps)的可操作性有限，这是您无法更改的。仅当您搜索任何目的地时，才会为您提供行车路线。由于这个原因，如果您需要步行路线，则必须先关闭Android Auto，然后再使用Google 地图(Google Maps)。
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有了这个，我们来到了即使在屏幕关闭时也可以使用Google Assistant的各种方式列表的末尾。(Google Assistant)请(Please)注意，大多数 Android 设备默认不允许这样做的原因是迫在眉睫的安全威胁(security threat)。通过说“Ok Google”允许您的设备解锁将迫使您的设备依赖语音匹配(voice match)的弱安全协议(security protocol)。但是，如果您愿意为此功能牺牲安全性，那么它完全取决于您。
How to use OK Google when the screen is off
Google Assistant is an extremely smart and useful app that makes life easier for Android users. It is your persоnаl assistant that uses Artificial Intelligence to optimize your user experience. It can serve multiple utilіty purposes like managіng your schedule, setting reminders, making phone сalls, sending texts, searching the web, cracking jokes, singing songs, etc. On top of that, you can even have simple yet witty converѕationѕ with it. It learns about your preferences and choices and іmproves itself gradually. Since it is an A.I. (Artificial Intelligence), it is constantly getting better with time and is becoming capable of doing more and more. In other words, it keeps adding to its list of features continuously and this makes it an interesting part of Android smartphones.
Now, in order to use Google Assistant, you need to unlock your phone. Google Assistant, by default, does not work when the screen is turned off. This implies that saying “Ok Google” or “Hey Google” will not unlock your phone and for good reasons too. The primary intention behind this is to protect your privacy and ensure your device’s security. Advanced as it may be, but unlocking your phone using Google Assistant is not that secure. This is because essentially, you would be using voice match technology to unlock your device and it is not very accurate. Chances are that people might imitate your voice and unlock your device. An audio recording can also be used and Google Assistant won’t be able to distinguish between the two.
However, if security isn’t your priority and you would like to keep your Google Assistant on at all times, i.e. even when the screen is turned off, then there are a few workarounds. In this article, we are going to discuss some techniques or methods that you can try in order to use the “Hey Google” or “Ok Google” feature when the screen is off.
How to use OK Google when the screen is off
1. Enable Unlock with Voice Match
Now, this feature is not available on most Android devices. You simply can’t unlock your phone by saying “Ok Google” or “Hey Google”. However, some devices like Google Pixel or Nexus come with the in-built feature to unlock your device with your voice. If your device is one of these phones, then you won’t have any problem at all. But Google has not released any official statement mentioning the name of the devices that support voice unlocking to know if your phone has this feature. There is just one way to find out and that is, by navigating to the Voice match settings of Google Assistant. Follow the steps given to check if you are one of the lucky users and if so, enable the setting.
1. Open Settings on your phone then tap on the Google option.
2. In here, click on the Account Services.
3. Followed by the Search, Assistant, and Voice tab.
4. Next, click on the Voice option.
5. Under Hey Google tab you will find the Voice Match option. Click on it.
6. Now, if you find the option to Unlock with voice match, then toggle on the switch next to it.
Once you enable this setting, you will be able to use Google Assistant when the screen is off. You can trigger Google Assistant by saying “Ok Google” or “Hey Google” as your phone will always be listening to you, even if the phone is locked. However, if this option isn’t available on your phone you won’t be able to unlock your device by saying Ok Google. There are, however, are a couple of workarounds that you can try.
2. Using a Bluetooth Headset
The other alternative is to use a Bluetooth headset to access Google Assistant when the screen is locked. Modern Bluetooth headsets come with support for Google Assistant. Shortcuts like long-pressing the play button or tapping the earpiece three times is supposed to activate Google Assistant. However, before you start shooting commands via your Bluetooth headset, you need to enable permission to access Google Assistant from the settings. Follow the steps given below to learn how:
1. Open Settings on your phone then tap on the Google option.
2. In here, click on the Account Services then click on the Search, Assistant, and Voice tab.
3. Now click on the Voice option.
4. Under the Hands-Free section, toggle the switch on next to the “Allow Bluetooth requests with device locked.”
Also Read: 6 Ways to Fix “OK Google” Not Working
3. Using Android Auto
A rather unusual solution to this desire to use Ok Google when the screen is off is to use Android Auto. Android Auto is essentially a driving aid app. It is meant to act as the GPS navigation and infotainment system for your car. When you connect your phone to the car’s display then you can use certain features and apps of Android like Google Maps, music player, Audible, and most importantly Google Assistant. Android Auto allows you to attend to your calls and messages with the help of Google Assistant.
While driving, you can simply activate Google Assistant by saying “Hey Google” or “Ok Google” and then ask it to make a call or text someone for you. This means that while using Google Auto, the voice activation feature works all the time, even when your screen is off. You can use this to your advantage and use Google Auto as a workaround to unlock your device using Ok Google.
However, this has certain drawbacks of its own. Firstly, you need to keep Android Auto running in the background at all times. This means that it would drain your battery and also consume RAM. Next up, Android Auto is meant for driving and thus it would limit Google Maps to provide driving route suggestions only. The notification center of your phone will also be significantly occupied by Android Auto at all times.
Now, some of the problems mentioned above can be mitigated to some degree. For example, in order to deal with the battery consumption issue, you can take help from the battery optimizer app on your phone.
Follow the steps given below to learn how:
1. Open Settings on your device. Now tap on the Apps option.
2. Here tap on the menu button (three vertical dots) on the top right-hand side of the screen.
3. Click on the Special access option from the drop-down menu. After that, select the Battery optimization option.
4. Now search for Android Auto from the list of apps and tap on it.
5. Make sure that you select the Allow option for Android Auto.
Doing so will somewhat reduce the amount of battery consumed by the app. Once that problem is taken care of, let’s move on to deal with the problem of notifications. As mentioned earlier, Android Auto notifications cover more than half of the screen. Tap and hold these notifications until you see the option to Minimize them. Click on the Minimize button and this would significantly reduce the size of the notifications.
However, the last problem that was the limited operability of Google Maps is something that you can’t change. You will only be provided with driving routes if you search for any destination. Due to this reason, if you ever need a walking route you will have to switch off Android Auto first and then use Google Maps.
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With this, we come to the end of the list of various ways in which you can use Google Assistant even when the screen is off. Please take note that the reason why this is not allowed on most Android devices by default is the impending security threat. Allowing your device to be unlocked by saying “Ok Google” would compel your device to depend on the weak security protocol of voice match. However, if you are willing to sacrifice your security for this feature, then its completely up to you.
