# nordicsemi/android-ble-library

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2,386 stars · 457 forks · Java · BSD-3-Clause

## Links

- GitHub: https://github.com/nordicsemi/Android-BLE-Library
- awesome-repositories: https://awesome-repositories.com/repository/nordicsemi-android-ble-library.md

## Description

This library provides a development framework for managing Bluetooth Low Energy connections and data exchange on Android devices. It functions as both a client manager for executing read and write operations with hardware peripherals and a server framework for configuring local devices to host GATT services.

The library distinguishes itself through a managed, queue-based architecture that serializes asynchronous requests to prevent command collisions and ensure reliable transmission. It automates complex tasks such as packet splitting, service discovery, and connection retries, while maintaining persistent links across application lifecycle transitions.

Beyond basic connectivity, the framework includes tools for performance optimization and real-time state synchronization. It exposes hardware connection events and data updates through reactive streams, allowing applications to monitor status changes and trigger interface updates automatically. The library is distributed as an Android-specific development package.

## Tags

### Hardware & IoT

- [Bluetooth Connectivity](https://awesome-repositories.com/f/hardware-iot/bluetooth-connectivity.md) — Provides a framework for managing Bluetooth Low Energy connections, GATT operations, and peripheral data exchange on Android. ([source](https://github.com/nordicsemi/android-ble-library#readme))
- [GATT Service Hierarchies](https://awesome-repositories.com/f/hardware-iot/gatt-service-hierarchies.md) — Performs read and write requests using a managed queue to ensure reliable communication with hardware. ([source](https://github.com/nordicsemi/android-ble-library#readme))
- [GATT Client Managers](https://awesome-repositories.com/f/hardware-iot/gatt-service-hierarchies/gatt-client-managers.md) — Executes reliable read and write operations with automatic packet handling and service discovery for hardware peripherals.
- [GATT Server Hosting](https://awesome-repositories.com/f/hardware-iot/integration-performance/hardware-interfacing-integration/hardware-integration/device-sensors/ble-sensor-monitors/gatt-server-hosting.md) — Configures the local device as a peripheral to expose services and characteristics to external clients.
- [Bluetooth Connection Parameter Configurators](https://awesome-repositories.com/f/hardware-iot/bluetooth-connectivity/bluetooth-interface-configuration/bluetooth-connection-parameter-configurators.md) — Improves data transfer speeds and link stability by adjusting Bluetooth connection parameters. ([source](https://github.com/nordicsemi/android-ble-library#readme))
- [Bluetooth LE Performance Optimizers](https://awesome-repositories.com/f/hardware-iot/bluetooth-connectivity/bluetooth-le-performance-optimizers.md) — Maximizes data transfer speeds and link stability by adjusting connection parameters and managing operation queues.

### Data & Databases

- [BLE Data Exchange](https://awesome-repositories.com/f/data-databases/data-exchange-protocols/runtime-data-exchange/ble-data-exchange.md) — Enables reading and writing data to connected hardware while subscribing to live notifications. ([source](https://github.com/nordicsemi/android-ble-library#readme))

### Networking & Communication

- [Bluetooth](https://awesome-repositories.com/f/networking-communication/network-reliability-diagnostics/connection-session-management/connection-management/connection-lifecycle-managers/bluetooth.md) — Maintains persistent Bluetooth links by automating connection state handling and service discovery across application lifecycle transitions.

### Security & Cryptography

- [Android GATT Server Frameworks](https://awesome-repositories.com/f/security-cryptography/authentication-clients/client-to-server-authentication/remote-server-additions-to-clients/android-gatt-server-frameworks.md) — Configures local devices to act as GATT servers that respond to data requests from external clients.

### Software Engineering & Architecture

- [GATT Operation Queues](https://awesome-repositories.com/f/software-engineering-architecture/priority-based-request-queues/image-request-queues/asynchronous-task-queues/gatt-operation-queues.md) — Ensures reliable data transmission by serializing asynchronous Bluetooth requests into a managed pipeline.
- [Bluetooth State Streams](https://awesome-repositories.com/f/software-engineering-architecture/reactive-data-streams/bluetooth-state-streams.md) — Exposes hardware connection events and data updates through reactive streams for real-time synchronization.
- [Reactive Bluetooth Streams](https://awesome-repositories.com/f/software-engineering-architecture/reactive-data-streams/reactive-bluetooth-streams.md) — Synchronizes application interfaces in real time by observing hardware state changes through live data streams.
- [Bluetooth Packet Batching](https://awesome-repositories.com/f/software-engineering-architecture/request-batching/bluetooth-packet-batching.md) — Optimizes data transmission by automatically splitting and merging packets to fit Bluetooth hardware constraints.

### System Administration & Monitoring

- [Device Connection Monitoring](https://awesome-repositories.com/f/system-administration-monitoring/administrative-operations/remote-access-interface-tools/administrative-interfaces/management-interfaces/device-connection-monitoring.md) — Tracks real-time Bluetooth connection status and hardware state changes to trigger automatic interface updates and background synchronization tasks. ([source](https://github.com/nordicsemi/android-ble-library#readme))

### Web Development

- [Bluetooth State Observers](https://awesome-repositories.com/f/web-development/reactive-state-management/bluetooth-state-observers.md) — Updates application interfaces automatically by tracking connection status and hardware updates through live data streams. ([source](https://github.com/nordicsemi/android-ble-library#readme))
- [Reactive Bluetooth Observers](https://awesome-repositories.com/f/web-development/state-update-handlers/state-synchronization-handlers/ui-state-synchronization/reactive-state-synchronization/reactive-bluetooth-observers.md) — Tracks connection status and hardware updates through live data streams to synchronize application state automatically.