Android audio_policy_configuration.xml Architecture & Setup
Learn how Android Audio HAL routes streams, maps mixPorts to devicePorts, and configures audio_policy_configuration.xml for custom BSP hardware.
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Android Framework
The Android platform provides Java framework APIs to expose the functionality of some of these native libraries to apps.
Understanding Android Properties: Get, Set, and Use System Properties with Examples
Android system properties are key-value pairs maintained by Android’s property service, used by the operating system and … Read more
Mastering Android PowerOff: Decode AOSP Shutdown Secrets!
The Android Open Source Project (AOSP) provides the foundation for understanding the inner workings of Android systems. … Read more
Different between WifiNetworkSpecifier and WifiNetworkSuggestion
WifiNetworkSpecifier and WifiNetworkSuggestion are both classes introduced in Android to facilitate the management and connection to Wi-Fi … Read more
How to generate platform key for Signing App using Android Studio ?
If we are working on Android platform and require certain applications to be signed using platform key, … Read more
Understanding Android Touch Event , onTouchEvent ( Motion Event )
When we just touched the touchscreen and printed the logs in application using “onTouchEvent” it printed following … Read more
How to identify and change input device location in Android ?
Identify what is the current location of the input device using getvent command as, So, the output … Read more
Identify Input Device Information in Android
To identify the information about the input device connected to Android platform, we can use “getevent” as … Read more
Android Bluetooth Architecture: From API to HCI
A practical map of Android Bluetooth from framework APIs and Binder calls through the Bluetooth module, JNI, native host stack, vendor boundary, transport, and controller—with release-aware AOSP paths and debugging checkpoints.
How Android System Properties Work Across Partitions
Android system properties are a system-wide string key/value mechanism, but they are not an unrestricted global preferences store. Reads use shared property areas; writes are validated by init’s property service and SELinux policy. Modern cross-partition contracts should use generated typed Sysprop APIs.
Monitor Android Network Connectivity Correctly
A connected Wi-Fi or cellular network is not proof that your server is reachable. Observe Android’s default network and capabilities, expose conservative UI state, and let each request handle DNS, TLS, timeout, authentication, and server failures independently.
Android Power OFF Sequence / How Android Shuts Down works
This post tries to brief about how android shutdown / poweroff sequence is with respect to the … Read more
How early suspend works in Android
This post briefs about the source code flow of how early suspend mechanism in power managerment works … Read more
Understanding Android Services with Example
A Service is an application component that can perform long-running operations in the background, and it does … Read more
Building Android AAR Libraries and Linking Module API Methods
Learn how to create an Android AAR library module in Gradle, define public API interfaces, link local module dependencies, and invoke library functions.
Extracting Audio and Video Metadata in Android using MediaMetadataRetriever
Extract video duration, resolution, audio album art, and frame thumbnails in Android using MediaMetadataRetriever for local files and remote HTTP URLs.
How Android Bluetooth Profiles are Enabled and Services Activated in AOSP
Trace how AOSP initializes Bluetooth profiles (A2DP, HFP, GATT) from SystemServer and AdapterService down to Fluoride HAL and Binder IPC.