Suppress system Matter device discovery bottom sheet (#4062)

- Prevents the system's Matter device discovery bottom sheet from showing up while the Home Assistant app is opened.

app/src/full/java/io/homeassistant/companion/android/matter/MatterManagerImpl.kt

@@ -30,6 +30,11 @@ class MatterManagerImpl @Inject constructor(
         return config != null && config.components.contains("matter")
     }
 
+    override fun suppressDiscoveryBottomSheet(context: Context) {
+        if (!appSupportsCommissioning()) return
+        Matter.getCommissioningClient(context).suppressHalfSheetNotification()
+    }
+
     override fun startNewCommissioningFlow(
         context: Context,
         onSuccess: (IntentSender) -> Unit,

app/src/main/java/io/homeassistant/companion/android/matter/MatterManager.kt

@@ -16,6 +16,11 @@ interface MatterManager {
      */
     suspend fun coreSupportsCommissioning(serverId: Int): Boolean
 
+    /**
+     * Prevent the bottom sheet for discovered Matter devices from showing up while the app is open.
+     */
+    fun suppressDiscoveryBottomSheet(context: Context)
+
     /**
      * Start a flow to commission a Matter device that is on the same network as this device.
      * @param onSuccess Callback that receives an intent to launch the commissioning flow

app/src/main/java/io/homeassistant/companion/android/webview/WebViewActivity.kt

@@ -800,6 +800,11 @@ class WebViewActivity : BaseActivity(), io.homeassistant.companion.android.webvi
         }
     }
 
+    override fun onStart() {
+        super.onStart()
+        presenter.onStart(this)
+    }
+
     override fun onResume() {
         super.onResume()
         if (currentAutoplay != presenter.isAutoPlayVideoEnabled()) {

app/src/main/java/io/homeassistant/companion/android/webview/WebViewPresenter.kt

@@ -42,6 +42,8 @@ interface WebViewPresenter {
 
     fun sessionTimeOut(): Int
 
+    fun onStart(context: Context)
+
     fun onFinish()
 
     fun isSsidUsed(): Boolean

app/src/main/java/io/homeassistant/companion/android/webview/WebViewPresenterImpl.kt

@@ -287,6 +287,10 @@ class WebViewPresenterImpl @Inject constructor(
         } ?: 0
     }
 
+    override fun onStart(context: Context) {
+        matterUseCase.suppressDiscoveryBottomSheet(context)
+    }
+
     override fun onFinish() {
         mainScope.cancel()
     }

app/src/minimal/java/io/homeassistant/companion/android/matter/MatterManagerImpl.kt

@@ -14,6 +14,10 @@ class MatterManagerImpl @Inject constructor() : MatterManager {
 
     override suspend fun coreSupportsCommissioning(serverId: Int): Boolean = false
 
+    override fun suppressDiscoveryBottomSheet(context: Context) {
+        // No support, so nothing to suppress
+    }
+
     override fun startNewCommissioningFlow(
         context: Context,
         onSuccess: (IntentSender) -> Unit,