v1.5: time-based rotation angle — constant speed regardless of IPC load

app/build.gradle.kts

@@ -11,8 +11,8 @@ android {
         applicationId = "me.khodak.claudeusage"
         minSdk = 26
         targetSdk = 34
-        versionCode = 3
-        versionName = "1.2"
+        versionCode = 6
+        versionName = "1.5"
     }
 
     signingConfigs {

app/src/main/java/me/khodak/claudeusage/ClaudeUsageWidget.kt

@@ -39,6 +39,7 @@ class ClaudeUsageWidget : AppWidgetProvider() {
     companion object {
         const val ACTION_REFRESH = "me.khodak.claudeusage.ACTION_REFRESH"
         @Volatile internal var isRefreshing = false
+        @Volatile internal var currentRotation = 0f
 
         fun updateWidget(context: Context, manager: AppWidgetManager, widgetId: Int) {
             val prefs = PreferencesManager(context)
@@ -149,7 +150,7 @@ class ClaudeUsageWidget : AppWidgetProvider() {
                 if (status.isNotBlank()) status else if (updatedMs > 0) formatTime(updatedMs) else "")
             v.setInt(R.id.btn_refresh, "setColorFilter",
                 if (isRefreshing) 0xFFCC785C.toInt() else 0xFF999999.toInt())
-            v.setFloat(R.id.btn_refresh, "setRotation", 0f)
+            v.setFloat(R.id.btn_refresh, "setRotation", currentRotation)
             return v
         }
 
@@ -231,7 +232,7 @@ class ClaudeUsageWidget : AppWidgetProvider() {
             )
             v.setInt(R.id.btn_refresh, "setColorFilter",
                 if (isRefreshing) 0xFFCC785C.toInt() else 0xFF999999.toInt())
-            v.setFloat(R.id.btn_refresh, "setRotation", 0f)
+            v.setFloat(R.id.btn_refresh, "setRotation", currentRotation)
 
             return v
         }

app/src/main/java/me/khodak/claudeusage/UsageUpdateWorker.kt

@@ -6,16 +6,14 @@ import android.appwidget.AppWidgetManager
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import android.os.SystemClock
-import android.util.SizeF
-import android.widget.RemoteViews
 import androidx.work.*
+import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import me.khodak.claudeusage.data.PreferencesManager
-import java.util.concurrent.TimeUnit
 
 class UsageUpdateWorker(
     private val context: Context,
@@ -35,6 +33,7 @@ class UsageUpdateWorker(
                 prefs.saveUsageData(data)
             } catch (_: Exception) {}
             animJob.cancel()
+            animJob.join()
         }
 
         pushWidgetUpdate()
@@ -44,30 +43,33 @@ class UsageUpdateWorker(
     private suspend fun rotateRefreshIcon() {
         val manager = AppWidgetManager.getInstance(context)
         val ids = manager.getAppWidgetIds(ComponentName(context, ClaudeUsageWidget::class.java))
-        var angle = 0f
-        while (true) {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
-                val small = RemoteViews(context.packageName, R.layout.widget_layout_small)
-                small.setFloat(R.id.btn_refresh, "setRotation", angle)
-                val large = RemoteViews(context.packageName, R.layout.widget_layout)
-                large.setFloat(R.id.btn_refresh, "setRotation", angle)
-                val rv = RemoteViews(mapOf(
-                    SizeF(50f, 50f)  to small,
-                    SizeF(50f, 120f) to large
-                ))
-                ids.forEach { id -> manager.partiallyUpdateAppWidget(id, rv) }
-            } else {
-                val rv = RemoteViews(context.packageName, R.layout.widget_layout)
-                rv.setFloat(R.id.btn_refresh, "setRotation", angle)
-                ids.forEach { id -> manager.partiallyUpdateAppWidget(id, rv) }
+        val startMs = System.currentTimeMillis()
+        val msPerRotation = 800L // one full rotation every 0.8 seconds
+
+        fun angleAt(now: Long) = ((now - startMs) % msPerRotation) * 360f / msPerRotation
+
+        try {
+            while (true) {
+                ClaudeUsageWidget.currentRotation = angleAt(System.currentTimeMillis())
+                ids.forEach { id -> ClaudeUsageWidget.updateWidget(context, manager, id) }
+                delay(16) // aim for ~60fps; IPC speed sets the real ceiling
+            }
+        } finally {
+            // Finish the current rotation cleanly — run until at least one full spin
+            withContext(NonCancellable) {
+                val minEndMs = startMs + msPerRotation
+                while (System.currentTimeMillis() < minEndMs) {
+                    ClaudeUsageWidget.currentRotation = angleAt(System.currentTimeMillis())
+                    ids.forEach { id -> ClaudeUsageWidget.updateWidget(context, manager, id) }
+                    delay(16)
+                }
             }
-            angle = (angle + 30f) % 360f
-            delay(83) // ~12 fps, one full rotation per second
         }
     }
 
     private fun pushWidgetUpdate() {
         ClaudeUsageWidget.isRefreshing = false
+        ClaudeUsageWidget.currentRotation = 0f
         val manager = AppWidgetManager.getInstance(context)
         val ids = manager.getAppWidgetIds(ComponentName(context, ClaudeUsageWidget::class.java))
         ids.forEach { id -> ClaudeUsageWidget.updateWidget(context, manager, id) }
@@ -88,7 +90,8 @@ class UsageUpdateWorker(
         }
 
         fun cancelPeriodicRefresh(context: Context) =
-            (context.getSystemService(Context.ALARM_SERVICE) as AlarmManager)                .cancel(alarmIntent(context))
+            (context.getSystemService(Context.ALARM_SERVICE) as AlarmManager)
+                .cancel(alarmIntent(context))
 
         fun triggerImmediateRefresh(context: Context) {
             WorkManager.getInstance(context).enqueueUniqueWork(