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Meshtastic-Android/core/api/README.md

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# Meshtastic Android API
This module contains the stable AIDL interface and dependencies required to integrate with the Meshtastic Android app.
## Integration
[![](https://jitpack.io/v/meshtastic/Meshtastic-Android.svg)](https://jitpack.io/#meshtastic/Meshtastic-Android)
To communicate with the Meshtastic Android service from your own application, we recommend using **JitPack**.
Add the JitPack repository to your root `build.gradle.kts` (or `settings.gradle.kts`):
```kotlin
dependencyResolutionManagement {
repositories {
google()
mavenCentral()
maven { url = uri("https://jitpack.io") }
}
}
```
Add the dependencies to your module's `build.gradle.kts`:
```kotlin
dependencies {
// Replace 'v2.7.13' with the specific version you need
val meshtasticVersion = "v2.7.13"
// The core AIDL interface and Intent constants
implementation("com.github.meshtastic.Meshtastic-Android:meshtastic-android-api:$meshtasticVersion")
// Data models (DataPacket, MeshUser, NodeInfo, etc.)
implementation("com.github.meshtastic.Meshtastic-Android:meshtastic-android-model:$meshtasticVersion")
// Protobuf definitions (PortNum, Telemetry, etc.)
implementation("com.github.meshtastic.Meshtastic-Android:meshtastic-android-proto:$meshtasticVersion")
}
```
## Usage
### 1. Bind to the Service
Use the `IMeshService` interface to bind to the Meshtastic service. It is recommended to query the package manager to find the correct service component, as the package name may vary between build flavors (e.g., Play Store vs. F-Droid).
```kotlin
val intent = Intent("com.geeksville.mesh.Service")
val resolveInfo = packageManager.queryIntentServices(intent, 0)
if (resolveInfo.isNotEmpty()) {
val serviceInfo = resolveInfo[0].serviceInfo
intent.setClassName(serviceInfo.packageName, serviceInfo.name)
bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE)
}
```
### 2. Interact with the API
Once bound, cast the `IBinder` to `IMeshService`:
```kotlin
override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
val meshService = IMeshService.Stub.asInterface(service)
// Example: Send a broadcast text message
val packet = DataPacket(
to = DataPacket.ID_BROADCAST,
bytes = "Hello Meshtastic!".encodeToByteArray().toByteString(),
dataType = PortNum.TEXT_MESSAGE_APP.value,
id = meshService.packetId,
wantAck = true
)
meshService.send(packet)
}
```
### 3. Register a BroadcastReceiver
To receive packets and status updates, register a `BroadcastReceiver`. Use `MeshtasticIntent` constants for the actions.
**Important:** On Android 13+ (API 33), you **must** use `RECEIVER_EXPORTED` since you are receiving broadcasts from a different application.
```kotlin
// Using constants from org.meshtastic.core.api.MeshtasticIntent
val intentFilter = IntentFilter().apply {
addAction(MeshtasticIntent.ACTION_RECEIVED_TEXT_MESSAGE_APP)
addAction(MeshtasticIntent.ACTION_NODE_CHANGE)
addAction(MeshtasticIntent.ACTION_CONNECTION_CHANGED)
addAction(MeshtasticIntent.ACTION_MESH_DISCONNECTED)
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
registerReceiver(meshtasticReceiver, intentFilter, Context.RECEIVER_EXPORTED)
} else {
registerReceiver(meshtasticReceiver, intentFilter)
}
```
## Modules
* **`core:api`**: Contains `IMeshService.aidl` and `MeshtasticIntent`.
* **`core:model`**: Contains Parcelable data classes like `DataPacket`, `MeshUser`, `NodeInfo`.
* **`core:proto`**: Contains the generated Protobuf code (Wire).