opt.: battery status

2025-12-17 07:14:28 +01:00 · 2023-12-21 17:34:04 +08:00
parent 14260fa180
commit 527e161264
8 changed files with 286 additions and 40 deletions
--- a/lib/core/extension/listx.dart
+++ b/lib/core/extension/listx.dart
@@ -14,4 +14,24 @@ extension ListX<T> on List<T> {
    }
    return list;
  }
+
+  T? get firstOrNull => isEmpty ? null : first;
+
+  T? get lastOrNull => isEmpty ? null : last;
+
+  T? firstWhereOrNull(bool Function(T element) test) {
+    try {
+      return firstWhere(test);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  T? lastWhereOrNull(bool Function(T element) test) {
+    try {
+      return lastWhere(test);
+    } catch (_) {
+      return null;
+    }
+  }
 }