Modern operating systems for mobile devices provide a wide range of possibilities for user interaction. One such feature is a permission that allows certain apps to display their interface elements on top of all other running windows. In Android security settings, this option is often called "on top of other applications" or "show on top of other apps." Without this right, many useful utilities simply will not be able to perform their tasks correctly.
When you install a messenger, launcher or screen recording application, the system may ask you for access to this function. Users often ignore such requests for security reasons or simply do not understand their purpose. However, refusal to grant this right may lead to the inoperability of key software functions. Let's take a look at how this mechanism works and why it is necessary.
It is important to understand that this permission gives the app a high level of privileges. It allows you to overlay visual layers on any content that is currently on your smartphone screen. This can range from a helpful pop-up with a message to dimming the screen to save energy. Control over this parameter is in the hands of the device owner, and proper management of it is the key to safe operation of the gadget.
Technical purpose of the permission and principle of operation
The “display on top of other applications" function (also known as Draw over other apps or SYSTEM_ALERT_WINDOW) is a critical component of the Android architecture. It allows developers to create interfaces that are independent of the currently active window. For example, when you are watching a video in the browser, and at the same time a message arrives in the messenger, a pop-up notification (heads-up notification) uses exactly this mechanism.
Without granting this right, the application will not be able to display its interface on top of the workspace of another app. This is a fundamental Android security limitation introduced to prevent abuse. If any app could draw on top of everything without asking, attackers could create invisible buttons on top of the banking application interface to intercept clicks.
Google and other OS developers strictly regulate the use of this API. The system tracks which processes are trying to access the screen on top of other layers. The user must always explicitly confirm their consent to such actions through the system settings menu. This creates a balance between the ease of use of multitasking functions and the protection of personal data.
Technically, this works through the creation of a special window with a high display priority (Z-order). This window floats above all other UI elements. It can be transparent, translucent, or completely cover the content. It is important to note that the presence of such a window does not pause the operation of the application located under it, unless the top layer blocks the input of touch commands.
What applications require access to this mode
Many users are surprised why a regular flashlight or calculator suddenly requests the right to display on top of other windows. This is often justified by functionality, but can sometimes be a sign of excessive requests. Below is a list of categories of apps for which this permission is a standard and necessary requirement.
- 📱 Messengers and social networks: To display pop-up chats (chat heads) when you are in another app, or to display call notifications over the locked screen.
- 🎮 Game launchers and overlays: apps like Discord or game panels (Game Tools) from smartphone manufacturers that show FPS, processor temperature or allow you to stream the screen.
- 🛡️ Antiviruses and cleaners: Security applications often use this mode to display warnings about malicious sites in the browser or to block unwanted calls in real time.
- 💡 Brightness and blue light utilities: Applications that adjust the color temperature of the screen (for example, Twilight or Blue Light Filter), apply a translucent filter over the entire display.
Also worth mentioning are apps for recording screens and taking scrolling screenshots. They use this mode to display a floating recording control button that should be available to the user at any time, regardless of what application is open. Without this right, the control button would simply disappear when switching between tasks.
Some specific utilities, such as clipboard managers or automation tools (for example, Tasker), also actively use this function. They can display tooltips, quick access menus, or visual indicators of script execution right on top of the desktop or open documents.
How to enable and configure resolution in the Android system
The process of activating this function may vary slightly depending on the version of the operating system and the manufacturer’s shell (MIUI, OneUI, ColorOS, etc.). However, the general algorithm of actions remains the same for most devices based on Android 6.0 and higher. You will need to go to the deep system settings to find the appropriate section.
First, open the main settings of your smartphone. Find the section that deals with security or accessibility. In pure Android this is usually located along the path Settings → Applications → Special access → On top of other applications. In shells from Samsung or Xiaomi the path may look different, for example, through the “Privacy” or “Advanced settings” menu.
☑️ Checking access settings
After going to the desired section, you will see a list of all installed apps that have the potential to use this mode. Initially, most of them will be turned off. You need to find the specific application that requested access and move the switch opposite its name to the active position. The system may show an additional risk warning before enabling.
⚠️ Attention: If you enable this permission for an unknown or suspicious app, it may draw an invisible button over the payment confirmation button in a banking app. Always check the reputation of the developer before granting such rights.
In some cases, especially on newer versions of Android, the system may automatically redirect you to the grant screen immediately after installing an application that requires this access. This simplifies the process, but requires the user to be careful. Do not click “Allow” mechanically, read why exactly the app needs this access.
Search for apps that use interface overlay
Sometimes the user is faced with a situation when an incomprehensible window, advertisement or blackout appears on the screen, and he cannot understand which application is responsible for it. In this case, it is necessary to audit the installed apps and identify the culprit. Android provides tools to track active overlays.
Go back to the special permissions menu we talked about above. In the “On top of other applications” list, pay attention to apps for which the switch is already active. If you see an unfamiliar title or an app you haven't used in a while but it's accessing your screen, that's a cause for concern. Advertising modules are often disguised as system utilities.
For a more detailed analysis, you can use developer mode or third-party monitoring utilities. However, a standard list is usually sufficient. Sort apps by name or installation date. If the problem appeared recently, look for apps installed during the same period. Often the culprits are battery “optimizers” or dubious antiviruses.
| Application type | Access requirement | Security risk | Recommendation |
|---|---|---|---|
| Messengers (Telegram, WhatsApp) | High (pop-up chats) | Low | Allow |
| Blue light filters | Critical (screen dimming) | Low | Allow |
| Unknown utilities | Doubtful | High | Deny and delete |
| Advertising networks (in-game) | Medium (banner display) | Medium | Limit background activity |
If you find malware that constantly displays ads on top of other windows, simply disabling access may not be enough. Such apps often have self-healing mechanisms. In this case, it is recommended to completely remove the application through the settings, and then scan the device with a reliable antivirus to clean residual files.
What to do if the “Delete” button is inactive?
Sometimes malicious applications gain device administrator rights. In this case, go to Settings → Security → Device Administrators, uncheck the suspicious app, and only then can it be removed.
Security issues and fraud protection
Permission to display on top of other applications is one of the most powerful tools in the arsenal of cyber fraudsters, targeting Android users. Attackers can use it to create so-called “overlay attacks”. The essence of the attack is simple: the malware draws an exact copy of the interface of a legitimate application, for example, a bank, on top of the original.
When the user enters his data (login, password, PIN code) into a fake window, the information is intercepted and sent to the hackers' server. At the same time, nothing suspicious happens visually for the user, since a copy of the interface can be made with pixel precision. This is why modern banking applications have built-in protection against such overlays and can block operation if suspicious layers are detected.
⚠️ Attention: Never enter sensitive data if there are any extraneous elements on the screen, floating buttons or blackouts that do not apply to the current application. This may be a sign of an active overlay attack.
Google is constantly updating Play Market security policies to prohibit the use of this permission for applications that do not objectively need it to function. However, applications distributed through third-party sources (APK files from forums or telegram channels) do not undergo such moderation and can pose a direct threat. Be extremely careful when installing software from untrusted sources.
In addition to data interception, malicious use of this right can lead to device blocking. The application can display a full-screen image that cannot be closed with standard gestures, requiring payment to unlock. In such situations, rebooting into safe mode often helps, where third-party applications do not run, which allows you to remove the virus.
Tip: Regularly check the list of applications with administrator rights and access on top of other windows. If you see a app there that you rarely use or don’t remember installing, immediately revoke its rights.
Specifics of working in different Android shells
Smartphone manufacturers often modify the standard Android interface, adding their own features to permission management. This can be confusing for users who are used to the stock version of the system. Understanding these differences will help you quickly find the settings you need on your specific device.
On smartphones Xiaomi with the MIUI or HyperOS shell, access to these settings is often hidden in the “Privacy” → “Special” section. capabilities" → "On top of other applications". In addition, MIUI has an aggressive autorun control system that can block floating windows from running even if allowed. You must additionally allow the AutoPlay application to work in the background.
Devices Samsung with the OneUI shell group these settings in the “Applications” menu. There is a special item “Special. access”, which contains the required parameter. A Samsung feature is the “Always on top of window” function for the video player, which is controlled separately through the settings of the Video application or gallery itself, and not through general permissions.
Smartphones Huawei and Honor with EMUI/MagicOS also have their own nuances. It is important to check your battery settings here. Even if the "over other applications" permission is granted, the system may "kill" the process in the background to save power, causing the floating window to disappear. You need to add the application to the list of protected ones or allow it to work in the background manually.
Manufacturer's shells (MIUI, OneUI) may have additional levels of protection that require not only granting permission, but also setting up autorun and work in the background to display windows correctly.
It is important to consider that settings interfaces may change with firmware updates. What worked on Android 11 may be moved to Android 13 or 14. If you can't find the item you need using the paths described, search inside your phone's settings menu by searching for "overlay" or "overlay." simple?
Frequently asked questions (FAQ)
Why does the application require this permission if it is simple?
Even simple apps can use this to display ads, tooltips or widgets. However, if the calculator asks for access to contacts and the screen on top of other applications at the same time, this is a reason to think about removing it and replacing it with an analogue from a more reliable developer.
Can this permission slow down the smartphone?
The presence of permission itself does not affect the speed. However, heavy use of complex graphical overlays (for example, constant FPS monitoring or animated widgets) can consume CPU and RAM resources, which will lead to poor performance in games or heavy tasks.
How to remove black squares or bars on the screen?
Most often, this is the result of an application with the “on top of other applications” function that has frozen or is not working correctly. Try rebooting your device. If the problem persists, go to the accessibility settings and disable access for recently installed apps one by one until the defect disappears.
Is it safe to give access to banking applications?
Official banking applications usually do not require “over other applications” rights for their main operation, as this is considered a security risk. If a bank asks for this permission for a currency rate widget, this is acceptable, but to enter your personal account, such a requirement should raise red flags.
What should I do if I accidentally allowed access to a virus?
Immediately turn off the Internet (Wi-Fi and mobile data) so that the virus does not transfer data. Then go to the application settings, find the suspicious app in the “On top of other applications” list, deny access and remove it. After this, it is recommended to change passwords for important services from another device.