Absolutely! Setting up your custom child-protection Android Launcher as a Kiosk app (single-app mode) is a perfect fit for your needs—it’s specifically designed to lock down system-level access like settings and notifications, which aligns perfectly with your child safety goals. Here’s a breakdown of how it works and what you need to do:

1. Get Device/Profile Owner Permissions #

First, your Launcher needs to be set as a Device Owner or Profile Owner on the device. This is a mandatory prerequisite for enabling Kiosk mode, as only apps with this elevated permission can enforce system-wide restrictions. You can set this up via:

• ADB commands (for manual setup/testing)
• An enterprise management platform (for mass deployment)

2. Block System Settings & Notifications #

Once your Launcher is the Kiosk app, use Android's DevicePolicyManager API to enforce these restrictions:

• Disable System Settings: Call addUserRestriction(UserManager.DISALLOW_SETTINGS) to prevent users from launching the Settings app entirely. You can also block access to quick settings panels to eliminate another entry point to system settings.
• Hide & Disable Notifications: Use setLockTaskFeatures() with the LOCK_TASK_FEATURE_DISABLE_NOTIFICATIONS flag to completely block notification bar interactions. Pair this with full-screen immersive mode in your Launcher to hide the status bar entirely.
• Lock to Your Launcher Only: Configure Kiosk mode to restrict the device to run only your Launcher app—this prevents users from switching to other apps that might offer workarounds to access settings.

3. Polish Your Custom Launcher for Kiosk Mode #

Since you already have a custom Launcher, add these child-safety tweaks:

• Remove any built-in links or shortcuts to system settings (e.g., long-press menu options, settings icons in your Launcher)
• Enable immersive full-screen mode to hide navigation and status bars, reducing accidental access to system controls
• Add a secure exit mechanism (like a password or PIN) for parents to exit Kiosk mode when needed—never leave Kiosk mode without a controlled way to exit!

Key Notes to Keep in Mind #

• Android version differences: Kiosk API behavior varies slightly across versions (e.g., Android 10+ has stricter notification restrictions), so be sure to test across the OS versions you support.
• Block workarounds: Don’t forget to disable other potential entry points like voice assistants (use UserManager.DISALLOW_VOICE_ASSISTANTS restriction) which could be used to launch settings.
• Clear setup instructions: Provide clear steps for parents to set your Launcher as Device Owner, since this can’t be done through standard system settings for regular users.

内容的提问来源于stack exchange，提问作者Meir