如果您的Android手机开始变慢或完全冻结，重新启动可能有助于将其恢复到正常功能。关闭手机过去就像按住电源按钮一样简单，但随着最近的更新——最显着的是Android 12的发布——这已经发生了轻微的变化。
以下是使用硬件键、系统设置和ADB命令
关闭Android手机的五种方法。(Android)
方法1：使用电源按钮(Power Button)关闭手机
在较旧的Android型号上，按住电源按钮将打开电源关闭菜单。之后，只需点击关机(Power)即可关闭手机。
但是，从Android 12开始，按住电源按钮将不再打开关机菜单。相反，它将激活三星设备上的Google Assistant或Bixby Voice。
相反，要使用电源按钮关闭手机，您必须同时长按电源键和降低音量按钮才能访问电源菜单。
注意：您也可以在紧要关头使用硬件键硬重置手机。为此，请按住电源键、降低音量键和提高音量按钮几秒钟，让您的手机进入恢复模式(Recovery Mode)。在那里，使用音量键选择擦除(Wipe)数据/ Factory设置，然后使用电源键选择您的选择。
方法 2：使用快速设置(Quick Settings)关闭您的Android手机
使用“快速设置”(Quick Settings)菜单是关闭或重启 Android(reboot your Android)设备的另一种简单方法：
- 在主屏幕上，从顶部向下滑动一次以访问快速设置。如果您已解锁手机，则需要向下滑动两次。
- 按电源图标。
- 点击关机。
方法 3：使用语音命令关闭您的 Android(Shut Down Your Android Using Voice Commands)
如果您有三星(Samsung)设备，例如三星 Galaxy ，您可以使用(Samsung Galaxy)Bixby将其关闭。首先(First)，您需要设置Bixby 语音(Bixby Voice)。然后，按住Bixby按钮（旧的电源键），等待Bixby激活，说“关闭手机”，然后确认您的选择。
显然，谷歌助手(Google Assistant)很快就能通过语音命令关闭你的手机。但是，尚不清楚这是否是谷歌 Pixel(Google Pixel)手机独有的。
方法 4：使用辅助功能菜单(Accessibility Menu)关闭您的Android
辅助功能(Accessibility)或助手(Assistant)菜单（三星(Samsung)上）专为有身体障碍的用户设计，提供了一种使用辅助触摸选项访问硬件按钮的方法。
在三星(Samsung)手机
上打开助手(Assistant)菜单：
- 打开设置。
- 向下滚动并点击辅助功能。
- 点击交互和灵活性。
- 在助手菜单上切换。
点击主屏幕上的浮动助手(Assistant)图标，向左滑动，然后选择关机(Power)菜单。
在非三星手机上
打开辅助功能菜单：(Accessibility)
- 前往设置。
- 查找辅助功能(Find Accessibility)。根据您的型号，这可以在Additional settings 或System中找到。
- 点击辅助功能(Accessibility)菜单并将其打开。
然后，您可以点击浮动辅助功能图标并选择关机(Power)按钮。
方法 5：使用 ADB 命令(Android Using ADB Commands)关闭您的Android
Android 调试桥(Android Debug Bridge)( ADB )是一个命令行工具，使开发人员能够执行各种功能。这是关闭手机最复杂的方法，但如果您的手机突然变得无响应，这是一种有用的方法。
启用开发人员(Developer) 选项(Options)和USB 调试(USB Debugging)
您需要为您的计算机启用开发人员(Developer) 选项(Options)和USB 调试(USB debugging)才能识别您的Android设备。
为此：
- 打开设置。
- 点击关于手机（在某些型号上，
这可能在系统下找到）。(System)
- 点击软件信息。
- 找到内部版本(Find Build)号并点击七次。出现提示时输入您的PIN码。您应该会看到一条消息：“您现在是开发人员了。”
- 返回设置(Settings)并滚动到页面底部。
- 点击开发者选项。
- 切换 USB 调试。
- 按确定。
设置亚行
下一步是下载SDK 平台工具(SDK Platform Tools)。此命令行软件将使您能够与您的Android设备进行交互。下载后，使用WinRAR(WinRAR)或 7-Zip文件管理(File Manager)器等文件存档器从存档中提取平台工具文件夹。
准备好SDK 平台工具(SDK Platform-Tools)后，请按照以下步骤关闭手机：
- 通过USB数据线将手机连接到计算机。
- 通过按Win键并搜索“命令提示符(Command Prompt)”打开命令(Command Prompt)提示符。如果您是Apple Mac 用户(Apple Mac user)，请改用终端。
- 接下来，您应该更改命令提示符(Command Prompt)目录，使其与ADB程序位于同一文件夹中。为此，您需要使用命令“cd”，后跟文件夹位置。例如：
cd C:UsersWORKDownloadsplatform-tools
- 输入“(Type “) adb devices”并按下回车键再次检查ADB程序是否已识别您的Android设备。如果被识别，它将显示您的Android的序列号。如果不是，请尝试重新连接充电器。
- 输入“(Type “) adb shell reboot -p”并回车。对于终端(Terminal)，键入“ .\adb shell reboot -p”并按Enter。
- 您应该会看到一条消息“完成”。
注意：如果您的硬件键不起作用，您将无法在手机关机后使用ADB命令打开手机。(ADB)相反，使用命令“adb reboot”来确保它重新启动。
再次开火
现在您已成功关闭手机电源，您可以通过按住电源按钮再次启动它。请记住(Remember)，如果您的电源按钮不起作用，则无法重新打开手机。在这种情况下，您应该重新启动手机而不是将其关闭。
How to Turn Off Your Android Phone
If уour Android phone has begun to slow down or has frozen entirely, a reboot might help restorе it to рroper functionality. Turning off а phone uѕed to be as simple as holding down the power button, bυt with recеnt updates — most notably the release of Android 12 — this has changed slightly.
Here are five ways to turn off your Android phone using the hardware keys, system settings, and ADB commands.
Method 1: Switch Off Your Phone Using the Power Button
On older Android models, pressing and holding the power button will open the power off menu. After that, simply tap Power off to turn off your phone.
However, from Android 12 onwards, pressing and holding the power button will no longer open the power off menu. Instead, it will activate either Google Assistant or Bixby Voice on Samsung devices.
Instead, to power off your phone using the power button, you must long-press both the power key and the volume down button to access the power menu.
Note: You can also use the hardware keys to hard reset your phone in a pinch. To do so, press and hold the power key, volume down key, and volume up button for a few seconds to put your phone into Recovery Mode. Once there, select Wipe data / Factory reset using the volume keys and select your choice with the power key.
Method 2: Turn Off Your Android Phone With Quick Settings
Using the Quick Settings menu is another simple way to turn off or reboot your Android device:
- From your home screen, swipe down once from the top to access quick settings. You’ll need to swipe down twice if you’ve unlocked your phone.
- Press the power icon.
- Tap Power off.
Method 3: Shut Down Your Android Using Voice Commands
If you have a Samsung device such as a Samsung Galaxy, you can power it off using Bixby. First, you need to set up Bixby Voice. Then, press and hold the Bixby button (the old power key), wait for Bixby to activate, say “Turn off the phone,” and confirm your choice.
Apparently, Google Assistant will soon be able to turn your phone off via voice commands. However, it isn’t clear if this will be exclusive to Google Pixel phones.
Method 4: Power Off Your Android Using the Accessibility Menu
The Accessibility or Assistant menu (on Samsung) is designed for users with physical impairments, offering a way to access hardware buttons with assistive touch options.
To turn on the Assistant menu on a Samsung phone:
- Open Settings.
- Scroll down and tap Accessibility.
- Tap Interaction and dexterity.
- Toggle on the Assistant menu.
Tap the floating Assistant icon on the home screen, swipe to the left, and select the Power off menu.
To turn on the Accessibility menu on a non-Samsung phone:
- Go to Settings.
- Find Accessibility. Depending on your model, this can be found in either Additional settings or System.
- Tap the Accessibility menu and toggle it on.
You can then tap the floating accessibility icon and choose the Power off button.
Method 5: Turn Off Your Android Using ADB Commands
The Android Debug Bridge (ADB) is a command-line tool that enables developers to perform various functions. It’s the most complicated way to turn off your phone, but it’s a useful method if your phone suddenly becomes unresponsive.
Enable Developer Options and USB Debugging
You need to enable Developer Options and USB debugging for your computer to be able to recognize your Android device.
To do so:
- Open Settings.
- Tap About phone (this may be found under System on some models).
- Tap Software information.
- Find Build number and tap this seven times. Put in your PIN code when prompted. You should see a message saying, “You’re now a developer.”
- Go back to Settings and scroll to the bottom of the page.
- Tap Developer options.
- Toggle on USB debugging.
- Press OK.
Set Up ADB
The next step is to download the SDK Platform Tools. This command-line software will enable you to interact with your Android device. Once downloaded, extract the platform-tools folder from the archive using a file archiver like WinRAR or 7-Zip File Manager.
With SDK Platform-Tools ready to go, follow these steps to power off your phone:
- Connect your phone to your computer via a USB cable.
- Open Command Prompt by pressing the Win key and searching for “Command Prompt.” If you’re an Apple Mac user, use Terminal instead.
- Next, you should change the Command Prompt directory so it’s in the same folder as the ADB program. To do so, you need to use the command “cd” followed by the folder location. For example:
cd C:\Users\WORK\Downloads\platform-tools
- Type “adb devices” and press enter to double-check that the ADB program has recognized your Android device. If recognized, it will display your Android’s serial number. If not, try reconnecting the charger.
- Type “adb shell reboot -p” and press enter. For Terminal, type “.\adb shell reboot -p” and press Enter.
- You should see a message saying “Done.”
Note: If your hardware keys don’t work, you will not be able to turn on your phone using ADB commands after it has powered down. Instead, use the command “adb reboot” to ensure that it restarts.
Fire It Up Again
Now that you’ve successfully powered down your phone, you can start it back up again by pressing and holding the power button. Remember that it’s impossible to turn your phone back on if your power button doesn’t work. In this case, you should restart your phone rather than turn it off.
