android oreo
Back in Android Marshmallow, Google introduced a feature that allowed apps to display on top of other apps. Things like Facebook Messenger and Twilight take advantage of this feature to be able to essentially run on-screen at the same time as other foreground applications.
早在Android Marshmallow中，Google引入了一项功能，该功能允许应用程序显示在其他应用程序之上。 诸如Facebook Messenger和Twilight之类的东西都利用此功能，能够与其他前台应用程序同时在屏幕上同时运行。
But that presented a problem in itself: some apps wouldn’t run when something was running on top of them—like Waze, for example. This generated a “Screen Overlay Detected” error that was incredibly difficult to decipher once you got it.
但这本身就带来了一个问题：例如，某些应用程序在某些应用程序之上运行时将无法运行，例如Waze。 这会产生“检测到屏幕重叠”错误 ，一旦发现，将很难破译。
With Oreo, Android makes it very clear when an app is running on top of other applications by generating a system notification to let you know what’s happening. This is incredibly useful (as is any setting that shows you what’s happening in the background), but at the same time some people just don’t care and see this as just another notification cluttering up the bar every time something is happening behind the scenes(ish).
借助Oreo，Android可以通过生成系统通知来让您知道发生了什么，从而使应用程序在其他应用程序之上运行时变得非常清晰。 这是非常有用的(任何显示背景情况的设置都是如此)，但是与此同时，有些人不在乎，并且每当幕后发生任何事情时，这只是另一条通知而变得混乱(ish)。
如何禁用“在其他应用程序上显示”通知 (How to Disable the “Displaying Over Other Apps” Notification)
The good news is that you turn the notification off. The bad news is that you’ll have to do this for every app that you get the notification for. Really, though, it shouldn’t be that many—and technically, this is a good thing, since it means you’ll still get the notification when something is displaying unexpectedly.
好消息是您关闭了通知。 坏消息是，您必须为收到通知的每个应用程序执行此操作。 但是，实际上应该不应该那么多-从技术上讲，这是一件好事，因为这意味着当出现意外显示时，您仍然会收到通知。
To get started, wait until you see the notification pop up and long-press it.
要开始使用，请等待直到弹出通知并长按它。
NOTE: You’ll long press the “[APP NAME] is displaying over other apps” notification, not the notification for the app itself (if one is present, like in our text example here).
注意：您将长按“ [[APP NAME]正在通过其他应用显示””通知， 而不是针对该应用本身的通知(如果存在该通知，例如此处的文本示例)。
This will open the Android System notification settings panel.
这将打开“ Android系统通知设置”面板。
To quickly disable the notification, just toggle the slider to off. A note will display letting you know this notification won’t show up anymore. Again, this is only for the app that’s currently running—a new notification will show up if another app is displaying over other apps. This is a very granular setting.
要快速禁用通知，只需将滑块切换为关闭即可。 将显示一条注释，让您知道此通知将不再显示。 同样，这仅适用于当前正在运行的应用程序-如果另一个应用程序正在其他应用程序上显示，则会显示新的通知。 这是一个非常精细的设置。
When you’re finished, just tap “Done.”
完成后，只需点击“完成”。
如何重新启用“在其他应用程序上显示”通知 (How to Re-Enable the “Displaying Over Other Apps” Notification)
If you decide you miss this setting, you can easily get it back.
如果您决定错过此设置，则可以轻松将其恢复。
Give the notification bar a tug and tap the gear icon to open the Settings menu.
给通知栏拖船，然后点击齿轮图标以打开“设置”菜单。
From there, tap into the Apps & Notifications menu.
从那里，点击“应用程序和通知”菜单。
Tap “Notifications,” then “Notifications (On for all apps).”
点击“通知”，然后点击“通知(对所有应用程序都打开)”。
Tap the three dot menu button in the top right corner, then select “Show system.” This will show system apps and apps installed from the Play Store in the list.
点击右上角的三点菜单按钮，然后选择“显示系统”。 这将在列表中显示系统应用程序和从Play商店安装的应用程序。
Choose “Android System.”
选择“ Android系统”。
Find the notification you disabled earlier—it’s Messenger in our test scenario—then re-enable it by toggling the slider to the on position.
找到您之前禁用的通知(在我们的测试场景中为Messenger)，然后通过将滑块切换到打开位置来重新启用它。
Done and done.
做完了。
android oreo