Offload system events breadcrumbs to background thread

sentry-android-core/src/main/java/io/sentry/android/core/SystemEventsBreadcrumbsIntegration.java

@@ -211,7 +211,7 @@ static final class SystemEventsBroadcastReceiver extends BroadcastReceiver {
     private static final long DEBOUNCE_WAIT_TIME_MS = 60 * 1000;
     private final @NotNull IHub hub;
     private final @NotNull SentryAndroidOptions options;
-    private final @NotNull Debouncer debouncer =
+    private final @NotNull Debouncer batteryChangedDebouncer =
         new Debouncer(AndroidCurrentDateProvider.getInstance(), DEBOUNCE_WAIT_TIME_MS, 0);
 
     SystemEventsBroadcastReceiver(
@@ -221,19 +221,38 @@ static final class SystemEventsBroadcastReceiver extends BroadcastReceiver {
     }
 
     @Override
-    public void onReceive(Context context, Intent intent) {
-      final boolean shouldDebounce = debouncer.checkForDebounce();
-      final String action = intent.getAction();
+    public void onReceive(final Context context, final @NotNull Intent intent) {
+      final @Nullable String action = intent.getAction();
       final boolean isBatteryChanged = ACTION_BATTERY_CHANGED.equals(action);
-      if (isBatteryChanged && shouldDebounce) {
-        // aligning with iOS which only captures battery status changes every minute at maximum
+
+      // aligning with iOS which only captures battery status changes every minute at maximum
+      if (isBatteryChanged && batteryChangedDebouncer.checkForDebounce()) {
         return;
       }
 
+      try {
+        options
+            .getExecutorService()
+            .submit(
+                () -> {
+                  final Breadcrumb breadcrumb = createBreadcrumb(intent, action, isBatteryChanged);
+                  final Hint hint = new Hint();
+                  hint.set(ANDROID_INTENT, intent);
+                  hub.addBreadcrumb(breadcrumb, hint);
+                });
+      } catch (Throwable t) {
+        options
+            .getLogger()
+            .log(SentryLevel.ERROR, t, "Failed to submit system event breadcrumb action.");
+      }
+    }
+
+    private @NotNull Breadcrumb createBreadcrumb(
+        final @NotNull Intent intent, final @Nullable String action, boolean isBatteryChanged) {
       final Breadcrumb breadcrumb = new Breadcrumb();
       breadcrumb.setType("system");
       breadcrumb.setCategory("device.event");
-      String shortAction = StringUtils.getStringAfterDot(action);
+      final String shortAction = StringUtils.getStringAfterDot(action);
       if (shortAction != null) {
         breadcrumb.setData("action", shortAction);
       }
@@ -273,11 +292,7 @@ public void onReceive(Context context, Intent intent) {
         }
       }
       breadcrumb.setLevel(SentryLevel.INFO);
-
-      final Hint hint = new Hint();
-      hint.set(ANDROID_INTENT, intent);
-
-      hub.addBreadcrumb(breadcrumb, hint);
+      return breadcrumb;
     }
   }
 }