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android版在当前位置有朝向的箭头，ios没有

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版本： "react-native-amap3d": "^2.0.4", 问题描述： 1. android版当前位置有朝向的箭头，ios没有。 2.AMapView.m里,编译报错的代码中，有一行代码如下 `_locationStyle.showsHeadingIndicator = locationStyle.showsHeadingIndicator;` 不知道是否跟朝向有关系， 3.自己定制个marker来表示朝向，效果不理想，静止的时候没问题，在移动中自定义的marker位置经常有延迟。 4.请问大佬，有什么简单的方法么？ 万分感激

求救：是否有办法只绘制轨迹，不显示地图？

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需要完全不显示地图，只绘制gps点组成的折线。 不知道怎么做，请大神赐教。 不胜感激

[ios]display quakes.

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My app has 2 pages. page A --navigator.push--> page B page B --navigator.pop-->page A B uses react-native-simple-radio-button. in page B, the inputed radio's value was calulated , and set result...

Can't endBackgroundTask: no background task exists with identifier 6c, or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.

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**ENV** RN 0.45 iPhone 6 Emulator **Problem** The console of Xcode continue print "Can't endBackgroundTask: no background task exists with identifier ??, or it may have already been ended. Break...

Query for com.apple.MobileAsset.VoiceServicesVocalizerVoice failed: 2 #FactoryInstall Unable to query results, error: 5 Unable to list voice folder Query for com.apple.MobileAsset.VoiceServices.GryphonVoice failed: 2 Unable to list voice folder AddInstanceForFactory: No factory...

Query for com.apple.MobileAsset.VoiceServicesVocalizerVoice failed: 2 Could not instantiate audio unit. Error=Error Domain=NSOSStatusErrorDomain Code=-3000 "(null)" Couldn't find audio unit for request SSML Length: 28, Voice: [AVSpeechSynthesisProviderVoice 0x6000022585a0] Name: Samantha, Identifier: com.apple.voice.compact.en-US.Samantha,...