Also start on boot for QUICKBOOT_POWERON

Many cheap MediaTek-based car head units suspend/resume on an
ignition cycle rather than doing a full Linux reboot, and fire this
legacy broadcast instead of (or alongside) BOOT_COMPLETED.

Author: roman-gmk

app/src/main/AndroidManifest.xml

@@ -50,6 +50,7 @@
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <action android:name="android.intent.action.QUICKBOOT_POWERON" />
             </intent-filter>
         </receiver>
 

app/src/main/java/com/sleepbutton/app/BootReceiver.kt

@@ -5,11 +5,23 @@ import android.content.Context
 import android.content.Intent
 import android.os.Build
 
-/** Auto-starts the floating button after boot, if both permissions are already granted. */
+/**
+ * Auto-starts the floating button after boot, if both permissions are already granted.
+ *
+ * Also listens for QUICKBOOT_POWERON: many cheap MediaTek-based car head units don't do a full
+ * Linux reboot on an ignition cycle, they suspend/resume, and fire this instead of (or in
+ * addition to) BOOT_COMPLETED.
+ */
 class BootReceiver : BroadcastReceiver() {
 
+    companion object {
+        private const val ACTION_QUICKBOOT_POWERON = "android.intent.action.QUICKBOOT_POWERON"
+    }
+
     override fun onReceive(context: Context, intent: Intent) {
-        if (intent.action != Intent.ACTION_BOOT_COMPLETED) return
+        if (intent.action != Intent.ACTION_BOOT_COMPLETED &&
+            intent.action != ACTION_QUICKBOOT_POWERON
+        ) return
         if (!PermissionUtils.hasAllPermissions(context)) return
 
         val serviceIntent = Intent(context, FloatingButtonService::class.java)