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空安全

什么时候可以支持空安全呀

请求重构

ai_amap/lib/ai_amap_widget.dart

Lines 5 to 35 in 603d9f9

// ignore: must_be_immutable
class AiAMapPlatformWidget extends StatefulWidget {
///
static const String UNSUPPORTED_DESCRIPTION_DEFAULT = "Unsupported platform";
String _unsupportedDescription;
///
/// constructor
AiAMapPlatformWidget({
String unsupportedDescription = UNSUPPORTED_DESCRIPTION_DEFAULT,
}) {
_unsupportedDescription =
unsupportedDescription ?? UNSUPPORTED_DESCRIPTION_DEFAULT;
}
@override
State<StatefulWidget> createState() {
return _AiAMapPlatformState(
unsupportedDescription: _unsupportedDescription);
}
}
///
/// _AiAMapPlatformState
class _AiAMapPlatformState extends State<AiAMapPlatformWidget> {
static const String _viewTypeId = "view_type_id_map_platform_view";
String _unsupportedDescription;
///
/// constructor
_AiAMapPlatformState({

  1. 支持空安全
  2. STF写法不好，不应该向state构造函数手动传参，改成final设变量，state里widget接受

关于1.1.0 IOS 提示 type 'AiAMapLocationPlatformView' does not conform to protocol 'AMapGeoFenceManagerDelegate'

日志如下：
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:17:7: error: type 'AiAMapLocationPlatformView' does not conform to protocol 'AMapGeoFenceManagerDelegate'
class AiAMapLocationPlatformView:NSObject,FlutterPlatformView,MAMapViewDelegate, AMapLocationManagerDelegate,AMapGeoFenceManagerDelegate,AMapNaviCompositeManagerDelegate{
^
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:17:7: note: do you want to add protocol stubs?
class AiAMapLocationPlatformView:NSObject,FlutterPlatformView,MAMapViewDelegate, AMapLocationManagerDelegate,AMapGeoFenceManagerDelegate,AMapNaviCompositeManagerDelegate{
^
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:231:46: warning: forced cast from 'String??' to 'String' only unwraps optionals; did you mean to use '!!'?
naviTitle = annotation.title as! String;
~~~~~~~~~~~~~~~~~^~~~~~~~~~
!!

> 日志如下：

日志如下：
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:17:7: error: type 'AiAMapLocationPlatformView' does not conform to protocol 'AMapGeoFenceManagerDelegate'
class AiAMapLocationPlatformView:NSObject,FlutterPlatformView,MAMapViewDelegate, AMapLocationManagerDelegate,AMapGeoFenceManagerDelegate,AMapNaviCompositeManagerDelegate{
^
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:17:7: note: do you want to add protocol stubs?
class AiAMapLocationPlatformView:NSObject,FlutterPlatformView,MAMapViewDelegate, AMapLocationManagerDelegate,AMapGeoFenceManagerDelegate,AMapNaviCompositeManagerDelegate{
^
/Users/zhangzhigang/.pub-cache/hosted/pub.flutter-io.cn/ai_amap-1.1.0/ios/Classes/AiAMapLocationPlatformView.swift:231:46: warning: forced cast from 'String??' to 'String' only unwraps optionals; did you mean to use '!!'?
naviTitle = annotation.title as! String;

!!

may be because of swift version difference...
what's your version about swift develop language?

Originally posted by @pdliuw in #3 (comment)

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