How to use the Activity Launcher app on Android: Complete guide to hidden functions

A modern operating system Android hides from the user many powerful tools and settings, access to which is difficult through the standard menu. For advanced users who need full control over their device, there are special activity launcher utilities. One of the most popular and functional solutions in this niche is Activity Launcher. This application allows you to find and launch any Activity (activity screens) registered in the system or installed apps.

Using such software provides access to hidden engineering menus, advanced battery settings, hardware tests and functions that the interface developers decided not to display on the main screen. However, working with Activity Launcher requires some caution, since incorrect launch of system processes can lead to unstable operation of the shell or even cyclic reboot of the device.

In this article we will look in detail at how to install, configure and safely use this tool. You'll learn how to create your own desktop shortcuts, look for hidden features in specific apps, and what to do if the screen goes black after starting an activity. We will also look at the technical nuances of working with AndroidManifest.xml through the app interface.

What is Activity Launcher and why do you need it?

Application Activity Launcher is a tool for navigating through the internal structure of apps installed on a smartphone. Every application consists of components, and one of the main types of such components is Android consists of components, and one of the main types of such components is Activity. Usually we see only the main activities that open when you click on an icon in the menu. All other screens - settings, individual functions, diagnostic utilities - remain hidden.

The main task of the launcher is to scan all packages (packages) in the system and display a complete list of available activities. This is especially useful for smartphone owners Xiaomi, Samsung or OnePluswhere manufacturers often hide useful engineering codes and testing menus deep in the system. Using this tool, you can launch a hidden sensor calibration menu or advanced modem settings without entering complex USSD codes.

⚠️ Attention: Launching system activities intended only for debugging may lead to resets or app conflicts. Always make sure that you understand the purpose of the selected item before activating it.

The functionality of the application is not limited to simply viewing the list. It allows you to create shortcuts for quick access to the necessary functions directly on your desktop. This turns complex multi-step settings paths into one touch. For example, you can remove the permission management menu for a specific application or a hidden section for battery usage statistics.

Installing and initial configuration of the application

The installation process Activity Launcher is as simple as possible and does not require receipt root access, which makes it accessible to a wide range of users. The application is distributed free of charge through the official store Google Play, and is also available as an APK file on third-party resources such as XDA Developers. It is recommended to download software only from trusted sources to avoid the introduction of malicious code.

After installation and the first launch, the application automatically begins scanning the system. This process can take from a few seconds to a minute depending on the number of installed apps and the processor power of your smartphone. At this time, the screen displays a list of packages that have already been processed. It is not recommended to interrupt scanning, since the activity database may not be formed correctly.

The app interface is designed in a style Material Design and is intuitive. At the top of the screen is the search bar, which is a key navigation tool. Below is a tree-like list of all applications, grouped by package names. For ease of use, you can change the interface language in the settings of the launcher itself, selecting Russian if it is available in your version.

• 🔍 Search by name: Enter keywords in English or Russian to quickly find the function you need.
• 📂 Grouping: Applications are sorted by package name, which helps you find system services (for example, com.android.settings).
• ⭐ Favorites: Frequently used activities can be bookmarked for quick access in the future.

Searching and launching hidden activities

The main value Activity Launcher is the ability to find hidden functions. To do this, it is most effective to use the built-in search. Let's say you want to find hidden network settings. Enter the word "network" or "network" into the search bar. The application will display a list of all activities in all installed apps that contain this word in the name or description.

Search results can be extensive. System activities often have technical names such as com.android.settings.RadioInfo or Testing. To understand what is hidden behind a particular item, pay attention to the icon to the left of the name. If the icon matches the system settings icon, most likely it is part of the standard menu Settings. If the icon is a standard robot Android, this may indicate an activity without a graphical interface or a service process.

When you click on a found activity, an attempt is made to launch it. If the activity has a user interface, a corresponding window will open. In some cases, especially when launching system dialogs, a window may appear on top of the current application. If the activity is designed to run in the background or requires specific rights, the screen may blink and nothing will happen, or an error message will appear.

com.android.settings.Settings$TestingSettingsActivity

This path often points to a hidden testing menu in the settings. It is important to understand that not all activities can be started manually. Some of them require the transfer of special data (Intent extras), which a normal user cannot enter through the launcher interface. In such cases, the launch will end with an error or the application will crash.

Why are some items highlighted in gray?

Activities that do not have the "LAUNCHER" category in the manifest are often highlighted in gray in the list. This does not mean that they do not work, it’s just that the developer did not plan for them to be launched directly by the user.

Creating shortcuts on the desktop

One ​​of the most useful functions of the application is the ability to display hidden activities found directly on the main screen of the smartphone in the form of separate icons. This allows you to create a personalized shortcut menu to the features you use most often. The process of creating a shortcut takes only a few seconds.

To do this, find the desired activity in the list or through the search. Perform a long press (tap and hold) on the activity name. In the context menu that appears, select "Create shortcut". After this, a new icon will appear on your desktop. By default, it may have a standard icon Android, but in some versions of the launcher or on certain shells the original function icon may be pulled up.

You can rename the created shortcut to make it more understandable. Just click on the name under the icon on your desktop (if your phone's launcher supports this function) or delete the old shortcut and create a new one with a different name through the widget settings. This is especially convenient for organizing your workspace, eliminating unnecessary steps when accessing complex settings.

Activity type	Example package	Risk of failure	Recommendation
Settings systems	com.android.settings	Low	Safe for use
Engineering menu	com.android.engineeringmode	Medium	For diagnostics only
System services	com.android.phone	High	Do not change parameters without knowledge
Third-party applications	com.whatsapp	Low	May not have hidden functions

⚠️ Attention: The interface and available activities may differ depending on the version Android and specific firmware (MIUI, OneUI, ColorOS). What works on one smartphone may not be present or causes an error on another.

Working with system settings and security

Using Activity Launcher to access system settings requires an understanding of the security structure Android. Starting from version Android 10 and higher, Google has tightened its access policies for certain data and functions. Some activities that previously opened without problems may now require confirmation of rights or even be blocked by the system when attempting to launch externally.

Particular care should be taken when working with activities related to application management and permissions. Running the hidden uninstall or file access control menu may unintentionally remove important system components if you are not careful. Always check what action will be performed when you press a button inside a hidden menu.

If you are using a smartphone with custom firmware, remember that manufacturers often modify standard settings packages. The activity responsible for the battery in the stock Androidshell MIUI can be moved to the "Security" application or have a completely different path in the system. In such cases, keyword search becomes the only reliable way to find the desired function.

• 🛡️ Access restrictions: Some menus may not open without superuser rights.
• 🔄 Dependency on version: Functionality changes with each Android security update.
• 🚫 Launch blocking: The system can prohibit the launch of an activity from a third-party application.

Possible problems and solutions solutions

When actively using the activity launcher, users may encounter a number of typical problems. The most common situation is a “black screen” after starting an activity. This means that the application tried to open the window, but the GUI did not render. This usually happens with activities that wait to receive certain data or work in the background.

Another common error is the message “The application is not installed” or the launcher crashes when trying to open a certain item. This may indicate that the target application was removed, updated with a change in package structure, or the activity was removed by the developers in a new firmware version. In this case, the desktop shortcut will stop working and should be deleted.

If, after launching a certain activity, the phone begins to behave inappropriately (freezes, reboots), you need to boot into safe mode. In this mode, third-party shortcuts and autoruns do not work, which will allow you to remove the problematic shortcut or uninstall the application itself Activity Launcherif it caused instability. Clearing the settings cache can also help return the system to a working state.

adb shell pm list packages | grep settings

For advanced users with access to ADB (Android Debug Bridge), it is possible to check for activities and run them through the console, which is a more reliable diagnostic method than using the GUI. However, for most tasks the functionality of the application itself is quite sufficient.

⚠️ Attention: If after launching a hidden activity the device goes into a cyclic reboot (bootloop), do not panic. Boot into Recovery mode and perform wipe cache partition. This will not delete your personal data, but will clear the system cache, which may have become corrupted.

Frequently asked questions (FAQ)

Are root access required for Activity Launcher to work?

No, for basic Application functionality does not require root access. It can scan and run most user and system activities as normal. However, access to some deeply hidden engineering menus may be limited without superuser rights.

Why do some activity icons look like a standard Android robot?

This means that this activity does not have a unique icon set in the application manifest. The system substitutes the standard icon by default. This does not affect the functionality of the function, but it does make it difficult to visually identify the purpose of the activity.

Is it safe to delete shortcuts created through this application?

Yes, deleting a shortcut from the desktop is absolutely safe. You are only removing the link to the feature, not the feature or application itself. System settings and apps will remain untouched.

Is it possible to hide other applications using this application?

No, Activity Launcher is intended for launching activities, and not for controlling the visibility of applications in the menu. To hide icons, it is better to use the functions of the built-in launcher of your smartphone or specialized applications for hiding content.

Why does the search not find the desired setting, although it is definitely in the system?

Perhaps the name of the activity does not contain the keywords that you enter. Try searching in English, using technical terms, or searching by the name of the application package in which the setting is located (for example, com.google.android.settings).