v1.0.16: spinning sync icon, colorful icon, ON_CHANGE fix, notification fix

- Sync icon now rotates (CSS-style spin) in StatusPill, StatusBanner,
  and card sync button whenever status is SYNCING
- Launcher icon redesigned: indigo→violet→cyan gradient background,
  upload arrow fades white→sky-blue, download arrow fades white→violet,
  soft glow ring behind arrows
- Fix ON_CHANGE not triggering: FileWatchService.start() now called
  from AddPairViewModel.save() so pairs created with ON_CHANGE
  immediately begin watching without needing a toggle or reboot
- Fix FileWatch notification hidden: IMPORTANCE_MIN → IMPORTANCE_LOW
  so the "Watching N folders" notification shows in the shade

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/src/main/kotlin/com/syncflow/ui/addpair/AddPairViewModel.kt

@@ -1,5 +1,6 @@
 package com.syncflow.ui.addpair
 
+import android.content.Context
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
@@ -7,9 +8,10 @@ import com.syncflow.data.db.CloudAccountDao
 import com.syncflow.data.db.SyncPairDao
 import com.syncflow.data.db.entities.CloudAccountEntity
 import com.syncflow.data.db.entities.SyncPairEntity
-import com.syncflow.data.db.entities.toDomain
 import com.syncflow.domain.model.*
+import com.syncflow.worker.FileWatchService
 import dagger.hilt.android.lifecycle.HiltViewModel
+import dagger.hilt.android.qualifiers.ApplicationContext
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import javax.inject.Inject
@@ -31,7 +33,7 @@ data class AddPairUiState(
     val scheduleType: ScheduleType = ScheduleType.INTERVAL,
     val intervalMinutes: Int = 30,
     val dailyTime: String = "02:00",
-    val weekdays: Int = 0b1111111,           // all 7 days by default
+    val weekdays: Int = 0b1111111,
     // ── Constraints ──────────────────────────────────────────────────────────
     val wifiOnly: Boolean = true,
     val wifiSsid: String = "",
@@ -57,6 +59,7 @@ data class AddPairUiState(
 class AddPairViewModel @Inject constructor(
     private val syncPairDao: SyncPairDao,
     private val accountDao: CloudAccountDao,
+    @ApplicationContext private val context: Context,
     savedState: SavedStateHandle,
 ) : ViewModel() {
 
@@ -147,7 +150,10 @@ class AddPairViewModel @Inject constructor(
                 )
                 if (editPairId == null) syncPairDao.insert(entity) else syncPairDao.update(entity)
             }
-                .onSuccess { _state.update { it.copy(done = true) } }
+                .onSuccess {
+                    if (s.scheduleType == ScheduleType.ON_CHANGE) FileWatchService.start(context)
+                    _state.update { it.copy(done = true) }
+                }
                 .onFailure { e -> _state.update { it.copy(isSaving = false, error = e.message) } }
         }
     }

app/src/main/kotlin/com/syncflow/ui/home/HomeScreen.kt

@@ -1,5 +1,10 @@
 package com.syncflow.ui.home
 
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
@@ -14,6 +19,7 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.syncflow.data.db.entities.SyncPairEntity
@@ -159,8 +165,18 @@ private fun SyncPairCard(
                             color = MaterialTheme.colorScheme.onSurfaceVariant,
                         )
                     }
+                    val syncRotation by rememberInfiniteTransition(label = "cardSyncSpin").animateFloat(
+                        initialValue = 0f, targetValue = 360f,
+                        animationSpec = infiniteRepeatable(tween(900, easing = LinearEasing)),
+                        label = "cardRotation",
+                    )
                     FilledTonalIconButton(onClick = onSync, modifier = Modifier.size(36.dp)) {
-                        Icon(Icons.Default.Sync, "Sync now", modifier = Modifier.size(18.dp))
+                        Icon(
+                            Icons.Default.Sync, "Sync now",
+                            modifier = Modifier.size(18.dp).graphicsLayer {
+                                if (pair.lastSyncResult == SyncStatus.SYNCING) rotationZ = syncRotation
+                            },
+                        )
                     }
                 }
             }
@@ -179,10 +195,11 @@ private fun StatusPill(status: SyncStatus) {
         SyncStatus.IDLE     -> Pair(Icons.Outlined.Circle, "Idle")
     }
     val containerColor = status.accentColor
-    val contentColor = when (status) {
-        SyncStatus.IDLE -> MaterialTheme.colorScheme.onSurfaceVariant
-        else -> MaterialTheme.colorScheme.surface
-    }
+    val rotation by rememberInfiniteTransition(label = "syncSpin").animateFloat(
+        initialValue = 0f, targetValue = 360f,
+        animationSpec = infiniteRepeatable(tween(1000, easing = LinearEasing)),
+        label = "rotation",
+    )
     Surface(
         shape = RoundedCornerShape(50),
         color = containerColor.copy(alpha = 0.15f),
@@ -192,7 +209,11 @@ private fun StatusPill(status: SyncStatus) {
             verticalAlignment = Alignment.CenterVertically,
             horizontalArrangement = Arrangement.spacedBy(4.dp),
         ) {
-            Icon(icon, null, Modifier.size(12.dp), tint = containerColor)
+            Icon(
+                icon, null,
+                Modifier.size(12.dp).graphicsLayer { if (status == SyncStatus.SYNCING) rotationZ = rotation },
+                tint = containerColor,
+            )
             Text(label, style = MaterialTheme.typography.labelSmall, color = containerColor)
         }
     }

app/src/main/kotlin/com/syncflow/ui/pairdetail/PairDetailScreen.kt

@@ -1,5 +1,10 @@
 package com.syncflow.ui.pairdetail
 
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
@@ -13,6 +18,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import com.syncflow.data.db.entities.SyncEventEntity
@@ -143,6 +149,11 @@ private fun StatusBanner(pair: SyncPairEntity) {
         SyncStatus.PARTIAL  -> Triple(Icons.Default.WarningAmber,"Partial",   MaterialTheme.colorScheme.tertiaryContainer)
         SyncStatus.IDLE     -> Triple(Icons.Outlined.Circle,     "Idle",      MaterialTheme.colorScheme.surfaceVariant)
     }
+    val rotation by rememberInfiniteTransition(label = "bannerSpin").animateFloat(
+        initialValue = 0f, targetValue = 360f,
+        animationSpec = infiniteRepeatable(tween(1000, easing = LinearEasing)),
+        label = "bannerRotation",
+    )
     Surface(
         color = containerColor,
         shape = RoundedCornerShape(16.dp),
@@ -152,7 +163,12 @@ private fun StatusBanner(pair: SyncPairEntity) {
             modifier = Modifier.padding(16.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {
-            Icon(icon, null, modifier = Modifier.size(40.dp))
+            Icon(
+                icon, null,
+                modifier = Modifier.size(40.dp).graphicsLayer {
+                    if (pair.lastSyncResult == SyncStatus.SYNCING) rotationZ = rotation
+                },
+            )
             Spacer(Modifier.width(16.dp))
             Column {
                 Text(label, style = MaterialTheme.typography.titleMedium)

app/src/main/kotlin/com/syncflow/worker/FileWatchService.kt

@@ -148,7 +148,7 @@ class FileWatchService : Service() {
         val nm = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
         if (nm.getNotificationChannel(CHANNEL_WATCH) == null) {
             nm.createNotificationChannel(
-                NotificationChannel(CHANNEL_WATCH, "File watching", NotificationManager.IMPORTANCE_MIN).apply {
+                NotificationChannel(CHANNEL_WATCH, "File watching", NotificationManager.IMPORTANCE_LOW).apply {
                     description = "Background service watching folders for changes"
                     setShowBadge(false)
                 }

app/src/main/res/drawable/ic_launcher_background.xml

@@ -3,6 +3,7 @@
     <gradient
         android:type="linear"
         android:angle="135"
-        android:startColor="#312E81"
-        android:endColor="#6366F1"/>
+        android:startColor="#4338CA"
+        android:centerColor="#7C3AED"
+        android:endColor="#0891B2"/>
 </shape>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,13 +1,39 @@
 <?xml version="1.0" encoding="utf-8"?>
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
     android:width="108dp"
     android:height="108dp"
     android:viewportWidth="24"
     android:viewportHeight="24">
+
+    <!-- Soft white glow ring behind arrows -->
     <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M12,4V1L8,5l4,4V6c3.31,0 6,2.69 6,6 0,1.01-0.25,1.97-0.7,2.8l1.46,1.46C19.54,15.03 20,13.57 20,12c0-4.42-3.58-8-8-8z"/>
+        android:pathData="M12,12m-7.5,0a7.5,7.5 0 1,0 15,0a7.5,7.5 0 1,0 -15,0"
+        android:fillColor="#22FFFFFF"/>
+
+    <!-- Upload arrow — white → sky blue -->
     <path
-        android:fillColor="#FFFFFF"
-        android:pathData="M12,18c-3.31,0-6,-2.69-6,-6 0,-1.01 0.25,-1.97 0.7,-2.8L5.24,7.74C4.46,8.97 4,10.43 4,12c0,4.42 3.58,8 8,8v3l4,-4-4,-4v3z"/>
+        android:pathData="M12,4V1L8,5l4,4V6c3.31,0 6,2.69 6,6 0,1.01-0.25,1.97-0.7,2.8l1.46,1.46C19.54,15.03 20,13.57 20,12c0-4.42-3.58-8-8-8z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:type="linear"
+                android:startX="8" android:startY="1"
+                android:endX="20" android:endY="15"
+                android:startColor="#FFFFFF"
+                android:endColor="#7DD3FC"/>
+        </aapt:attr>
+    </path>
+
+    <!-- Download arrow — white → violet -->
+    <path
+        android:pathData="M12,18c-3.31,0-6,-2.69-6,-6 0,-1.01 0.25,-1.97 0.7,-2.8L5.24,7.74C4.46,8.97 4,10.43 4,12c0,4.42 3.58,8 8,8v3l4,-4-4,-4v3z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:type="linear"
+                android:startX="4" android:startY="8"
+                android:endX="16" android:endY="23"
+                android:startColor="#FFFFFF"
+                android:endColor="#C4B5FD"/>
+        </aapt:attr>
+    </path>
 </vector>

version.properties

@@ -1,2 +1,2 @@
-VERSION_NAME=1.0.15
-VERSION_CODE=16
+VERSION_NAME=1.0.16
+VERSION_CODE=17