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Allow to specify export flags for broadcast receivers; log incoming broadcasts (#729)

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Ricki Hirner 2024-04-14 21:17:19 +02:00 committed by GitHub
parent 0a58f0a269
commit ab4244a533
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1 changed files with 16 additions and 4 deletions
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20
app/src/main/kotlin/at/bitfire/davdroid/util/BroadcastReceiverFlow.kt
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@ -5,6 +5,7 @@ import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import androidx.core.content.ContextCompat
import at.bitfire.davdroid.log.Logger
import kotlinx.coroutines.channels.awaitClose
import kotlinx.coroutines.flow.Flow
@ -15,14 +16,22 @@ import kotlinx.coroutines.flow.callbackFlow
*
* @param context the context to register the receiver with
* @param filter specifies which broadcasts shall be received
* @param flags flags to pass to [Context.registerReceiver] (usually [ContextCompat.RECEIVER_EXPORTED] or
* [ContextCompat.RECEIVER_NOT_EXPORTED]; `null` if only system broadcasts are received)
* @param immediate if `true`, send an empty [Intent] as first value
*
* @return cold flow of [Intent]s
*/
@SuppressLint("UnspecifiedRegisterReceiverFlag")
fun broadcastReceiverFlow(context: Context, filter: IntentFilter, immediate: Boolean = true): Flow<Intent> = callbackFlow {
fun broadcastReceiverFlow(
context: Context,
filter: IntentFilter,
flags: Int? = null,
immediate: Boolean = true
): Flow<Intent> = callbackFlow {
val receiver = object: BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
Logger.log.fine("broadcastReceiverFlow received $intent")
trySend(intent)
}
}
@ -30,8 +39,11 @@ fun broadcastReceiverFlow(context: Context, filter: IntentFilter, immediate: Boo
// register receiver
var filterDump = filter.toString()
filter.dump({ filterDump = it }, "")
Logger.log.fine("Registering broadcast receiver for $filterDump")
context.registerReceiver(receiver, filter)
Logger.log.fine("Registering broadcast receiver for $filterDump (flags=$flags)")
if (flags != null)
ContextCompat.registerReceiver(context, receiver, filter, flags)
else
context.registerReceiver(receiver, filter)
// send empty Intent as first value, if requested
if (immediate)
@ -58,5 +70,5 @@ fun packageChangedFlow(context: Context, immediate: Boolean = true): Flow<Intent
addAction(Intent.ACTION_PACKAGE_REMOVED)
addDataScheme("package")
}
return broadcastReceiverFlow(context, filter, immediate)
return broadcastReceiverFlow(context = context, filter = filter, immediate = immediate)
}