TencentGeofence class

地理围栏。

映射来源：

当某字段或事件在当前平台原生不支持时，addGeofence 不会抛异常，而是忽略该字段并在控制台输出 warning（前缀 [TencentLocation]）。各字段的具体平台支持差异见对应字段注释。

注意：expiration（有效期）在 Android 端应显式设置。SDK 对未设置有效期的围栏按 duration=0 处理，会立即判定为过期并清理，导致 getAllGeofences 查不到刚添加的围栏。

Constructors

TencentGeofence.circle({required String id, required TencentLocationCoordinate center, required double radius, CoordinateType coordinateType = CoordinateType.gcj02, Duration? expiration, Set<GeofenceTransition> monitorTransitions = const {GeofenceTransition.enter, GeofenceTransition.exit}, Duration? dwellDuration, Map<String, Object?>? userInfo}): 圆形围栏。
factory
TencentGeofence.district({required String id, required String keyword, CoordinateType coordinateType = CoordinateType.gcj02, Duration? expiration, Set<GeofenceTransition> monitorTransitions = const {GeofenceTransition.enter, GeofenceTransition.exit}, Duration? dwellDuration, Map<String, Object?>? userInfo}): 行政区划围栏。
factory
TencentGeofence.fromMap(Map map): factory
TencentGeofence.polygon({required String id, required List<TencentLocationCoordinate> vertices, CoordinateType coordinateType = CoordinateType.gcj02, Duration? expiration, Set<GeofenceTransition> monitorTransitions = const {GeofenceTransition.enter, GeofenceTransition.exit}, Duration? dwellDuration, Map<String, Object?>? userInfo}): 多边形围栏。
factory

center → TencentLocationCoordinate?: 圆心。仅 type 为 GeofenceType.circle 时使用。
final
coordinateType → CoordinateType: 坐标系。
final
districtKeyword → String?: 行政区划关键字：adcode（如 "110108"）或中文名称（如 "海淀区"）。仅 type 为 GeofenceType.district 时使用。
final
dwellDuration → Duration?: 停留事件的触发阈值。仅当 monitorTransitions 含 GeofenceTransition.dwell 时有效。
final
expiration → Duration?: 有效期。
final
hashCode → int: The hash code for this object.
no setterinherited
id → String: 围栏唯一标识。
final
monitorTransitions → Set<GeofenceTransition>: 监听事件集合（enter / exit / dwell 任意组合）。
final
polygon → List<TencentLocationCoordinate>?: 多边形顶点（≥3 且不重复）。仅 type 为 GeofenceType.polygon 时使用。
final
radius → double?: 半径，单位米。仅 type 为 GeofenceType.circle 时使用。
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
type → GeofenceType: 围栏形态。
final
userInfo → Map<String, Object?>?: 自定义附加信息（随事件回调带回）。
final

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toMap() → Map<String, Object?>
toString() → String: A string representation of this object.
inherited