Seamless Legacy Network Switching (Android 7-11) & UI Cleanup - #21
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LEGACY MODE VALUES - 5G Only: 23 - Preferred 5G: 33 - 4G Only: 11 - Preferred 4G: 9 - Preferred 3G: 0 - 2G Only: 1
…lers - Added explicit null handling for the active subscription list - Exposes the existing apllication context get context
- Routed Android 7 to 11 mode changes through the legacy backend - Kept Android 12+ mode changes the existing allowed-network-types backend
- Added a dedicated legacy network mode backend. - Added transactional mode writes and cellular modem restart. - Added airplane mode radio-list preservation and restoration. - Added clean up traps and post operation verification.
- Removed all legacy shell scripts that relied on settings put global and Airplane Mode toggling to force network changes. - Added dynamic path resolution (context.getApplicationInfo().sourceDir) to locate the app's base APK at runtime. - Refactored the apply() method to format and execute an app_process shell command using the APK as the CLASSPATH and targeting NetworkModePayload. - Simplified the legacy execution flow and error handling, relying on the Java payload's internal success/failure outputs.
…hing - Created a headless Java class with a main method designed to run natively via app_process outside the standard app lifecycle. - Implemented Java Reflection to securely hook into the hidden android.os.ServiceManager and retrieve the phone service binder. - Added logic to invoke ITelephony.setPreferredNetworkType(subId, mode) directly, bypassing standard Android permission restrictions. - Added @keep annotations to the class and main method to ensure R8/ProGuard does not strip or obfuscate the payload during release builds.
- Removed the unused segmented_selected color hex value. - Removed the unused segmented_text_selected color hex value. - Removed the unused accent_green color hex value. - Removed the unused cycle_badge_bg color hex value to resolve Android Lint warnings and clean up the resource file.
- Removed the unused segmented_selected color hex value. - Removed the unused segmented_text_selected color hex value. - Removed the unused accent_green color hex value. - Removed the unused cycle_badge_bg color hex value to maintain parity with the light theme cleanup and resolve Lint warnings.
Deleted the unused XML color state list selector (color_segmented_text.xml) identified during the Android Lint analysis to reduce APK size.
- Removed the ic_menu_book.xml Material Design vector drawable that was no longer referenced by any UI layouts.
- Removed the obsolete section_outline_bg.xml shape drawable to eliminate dead code and shrink the resource bundle.
- Deleted the unused selector_segmented_tab.xml background state selector based on the Lint dead-code analysis.
- Deleted the unused rectangular variant of the segmented tab background selector (selector_segmented_tab_rect.xml) to keep the codebase clean.
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📝 Summary
This Pull Request introduces full, seamless network mode switching support for older Android devices (Android 7 to 11). Since the
cmd phoneutility used for Android 12+ is unavailable on older versions, this PR implements a robust "Pro" fallback mechanism using a headless Java payload executed viaapp_process. It also includes housekeeping to remove unused resources flagged by Android Lint, reducing overall APK size.🚀 Key Changes
1. Legacy Java Payload Implementation (Seamless Switching)
NetworkModePayload) with amainmethod designed to run natively viaapp_processoutside the standard app lifecycle.android.os.ServiceManager, retrieve thephoneservice binder, and invokeITelephony.setPreferredNetworkType(subId, mode)directly.apply()method to dynamically resolve the app's base APK path (context.getApplicationInfo().sourceDir) to use as theCLASSPATHforapp_processexecution.@Keepannotations to the payload class and main method to ensure they are not stripped or obfuscated during release builds.settings put globaland Airplane Mode toggles.2. Architecture & Routing Dispatch
allowed-network-typesbackend.NetworkModeenum:5G Only: 23Preferred 5G: 334G Only: 11Preferred 4G: 9Preferred 3G: 02G Only: 13. Housekeeping & Dead Code Removal
Cleaned up unused XML files and resources to shrink the APK size and resolve Lint warnings:
segmented_selected,segmented_text_selected,accent_green,cycle_badge_bg) from both Light and Dark themecolors.xmlfiles.color_segmented_text.xml).ic_menu_book.xml,section_outline_bg.xml).selector_segmented_tab.xml,selector_segmented_tab_rect.xml).