Add isInBackground property to dachlatten-android module

sipgate · Nov 2, 2023 · 08cce29 · 08cce29
1 parent 9368c94
commit 08cce29
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diff --git a/dachlatten-android/build.gradle.kts b/dachlatten-android/build.gradle.kts
@@ -6,6 +6,7 @@ plugins {
 
 dependencies {
     implementation(libs.coroutines)
+    implementation(libs.lifecycle.process)
     implementation(libs.annotation.jvm)
 
     testImplementation(libs.coroutines)

diff --git a/dachlatten-android/src/main/kotlin/de/sipgate/dachlatten/android/lifecycle/ApplicationExt.kt b/dachlatten-android/src/main/kotlin/de/sipgate/dachlatten/android/lifecycle/ApplicationExt.kt
@@ -0,0 +1,48 @@
+package de.sipgate.dachlatten.android.lifecycle
+
+import android.util.Log
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.lifecycle.ProcessLifecycleOwner
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.SharingStarted
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.stateIn
+
+private val lifecycleEventFlow =
+    callbackFlow {
+        val lifecycleListener = LifecycleEventObserver { _, event -> trySend(event) }
+
+        ProcessLifecycleOwner
+            .get()
+            .lifecycle
+            .addObserver(lifecycleListener)
+
+        awaitClose {
+            ProcessLifecycleOwner
+                .get()
+                .lifecycle
+                .removeObserver(lifecycleListener)
+        }
+    }
+
+val isInForeground =
+    lifecycleEventFlow.map { event ->
+        when (event) {
+            Lifecycle.Event.ON_CREATE,
+            Lifecycle.Event.ON_START,
+            Lifecycle.Event.ON_RESUME,
+            -> true
+
+            Lifecycle.Event.ON_PAUSE,
+            Lifecycle.Event.ON_STOP,
+            Lifecycle.Event.ON_DESTROY,
+            Lifecycle.Event.ON_ANY,
+            -> false
+        }.also {
+            Log.d("dachlatten-android", "Event $event set Application is in foreground to: $it")
+        }
+    }.stateIn(CoroutineScope(Dispatchers.Unconfined), SharingStarted.Eagerly, false)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
@@ -5,12 +5,15 @@ junit = "5.10.0"
 coroutines = "1.7.3"
 turbine = "1.0.0"
 annotation-jvm = "1.7.0"
+androidx-lifecycle = "2.6.2"
 
 [libraries]
 coroutines = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-core", version.ref = "coroutines" }
 coroutinesTest = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-test", version.ref = "coroutines" }
 turbine = { group = "app.cash.turbine", name = "turbine", version.ref = "turbine" }
 
+lifecycle-process = { group = "androidx.lifecycle", name = "lifecycle-process", version.ref = "androidx-lifecycle" }
+
 android-gradlePlugin = { group = "com.android.tools.build", name = "gradle", version.ref = "agp" }
 kotlin-gradlePlugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin" }
 annotation-jvm = { group = "androidx.annotation", name = "annotation-jvm", version.ref = "annotation-jvm" }