Compose Broadcasts

🚀 Introduction

Compose Broadcasts is a powerful Jetpack Compose library that simplifies the process of working with Android's BroadcastReceivers in a composable environment. It provides an intuitive API to observe and react to system-wide events and changes in your Compose UI.

✨ Features

• 🔄 Easy integration with Jetpack Compose
• 📡 Observe system events like battery level, airplane mode, and more
• 🎛️ Custom BroadcastReceiver support
• 🧩 Composable functions for common system events
• 🛠️ Flexible API for creating custom broadcast listeners
• ☮️ No need to worry about registering / unregistering listeners anymore

📦 Installation

Add the following to your app's build.gradle.kts:

// Get the latest version from GitHub Releases/Tags (or the badge shown above)
implementation("io.github.shubhamsinghshubham777:composebroadcasts:x.y.z")

🛠️ Usage

Here's the complete list of composables Compose Broadcasts provides at the moment:

Composable	Return Type
rememberBroadcastReceiverAsState	Generic (T)
rememberIsAirplaneModeOn	Boolean
rememberBatteryLevel	Int
rememberIsCharging	Boolean
rememberPackageInfo	CBPackageInfo?
rememberCurrentTimeMillis	Long
rememberSystemLocale	Locale
rememberIsScreenOn	Boolean
rememberIsHeadsetConnected	Boolean
rememberCurrentInputMethod	CBInputMethodInfo?

And here are some examples of how to use them in your project:

Observe Airplane Mode

val isAirplaneModeOn by rememberIsAirplaneModeOn()
Text("Airplane mode is ${if (isAirplaneModeOn) "ON" else "OFF"}")

Monitor Battery Level

val batteryLevel by rememberBatteryLevel()
Text("Current battery level: $batteryLevel%")

Track Device Charging Status

val isCharging by rememberIsCharging()
Text("Device is ${if (isCharging) "charging" else "not charging"}")

Observe Package Changes

Check out the 🧩 Custom BroadcastReceivers section below to learn how to create PackageInfoReceiver.

val packageInfoReceiver = PackageInfoReceiver()
val packageInfo by rememberPackageInfo(packageInfoReceiver)
Text("Last package change: $packageInfo")

Monitor System Time

val currentTimeMillis by rememberCurrentTimeMillis()
Text("Current time: ${convertMillisToTimeString(currentTimeMillis)}")

Track System Locale Changes

Check out the 🧩 Custom BroadcastReceivers section below to learn how to create LocaleReceiver.

val localeReceiver = LocaleReceiver()
val currentLocale by rememberSystemLocale(localeReceiver)
Text("Current system locale: ${currentLocale.toLanguageTag()}")

🧩 Custom BroadcastReceivers

You can create custom BroadcastReceivers by extending the CBBroadcastReceiver class:

class MyCustomReceiver : CBBroadcastReceiver(tag = "my_custom_receiver") {
    override fun onReceive(context: Context?, intent: Intent?) {
        super.onReceive(context, intent)
        // Your custom logic here (if you like the old way of writing receivers)
        // Ideally, your logic should be a part of the composable itself
        // This class should just be left blank, for example:
        // class MyCustomReceiver : CBBroadcastReceiver(tag = "my_custom_receiver")
    }
}

Then, register the receiver in your AndroidManifest.xml file:

<manifest>
    <application>
        <receiver android:name=".MyCustomReceiver" android:exported="false">
            <intent-filter>
                <!-- Example: android.intent.action.PACKAGE_ADDED -->
                <action android:name="YOUR_CUSTOM_ACTION" />
            </intent-filter>
        </receiver>
    </application>
</manifest>

Finally, use it in your composable:

val customState by rememberBroadcastReceiverAsState(
    initialValue = initialState,
    // Example: CBIntentAction.Custom(Intent.ACTION_PACKAGE_ADDED)
    intentFilters = listOf(CBIntentFilter(CBIntentAction.Custom("YOUR_CUSTOM_ACTION"))),
    broadcastReceiver = MyCustomReceiver(),
) { context, intent ->
    // Map the received intent to your state
}

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

📄 License

This library is licensed under the Apache 2.0 License. See the LICENSE file for details.