IOS PhoneGap Build 6.3.0 地理定位 getCurrentPosition 变慢

PhoneGap Build 6.3.0 geolocation getCurrentPosition slow on IOS

我是 PhoneGap Build 开发新手。在测试一些基本的应用程序功能时,我在 Iphone 6 / IOS 10 / PhoneGap Build 6.3.0.

上执行简单的地理定位请求时遇到超时问题

重新安装应用程序后,我启动它并通过 onclick -> geolocation() 启动地理定位。

只有当我将应用程序转到后台时,我才会收到允许位置请求的 IOS 请求(应该在我第一次执行 onclick -> 地理定位时出现,同时将应用程序置于前台)。

有时我会在很长时间后得到地理定位结果,有时却得不到。我已经在三个 PositionOptions 上尝试了所有可能的组合。

当我询问 Google 地图应用程序时,它会立即显示位置。

知道我做错了什么吗?

谢谢你,金

function do_geolocation(){
 alert('do geoloc');
 navigator.geolocation.getCurrentPosition(geo_onSuccess, geo_onError, {maximumAge:120000, enableHighAccuracy:false} );

}
onclick=do_geolocation();



function geo_onSuccess(position){

 alert('Latitude: '          + position.coords.latitude          + '\n' +
          'Longitude: '         + position.coords.longitude         + '\n' +
          'Altitude: '          + position.coords.altitude          + '\n' +
          'Accuracy: '          + position.coords.accuracy          + '\n' +
          'Altitude Accuracy: ' + position.coords.altitudeAccuracy  + '\n' +
          'Heading: '           + position.coords.heading           + '\n' +
          'Speed: '             + position.coords.speed             + '\n' +
          'Timestamp: '         + position.timestamp                + '\n');

 var arr = new Array();
 arr['lat'] = position.coords.latitude;
 arr['lng'] = position.coords.longitude;

 var x = new Date();var cb = x.getTime();
 

}
function geo_onError(position){
 
  alert('code: '+error.code+'\nmessage: '+error.message+'\n');
 return false;

}

<?xml version="1.0" encoding="UTF-8" ?>
<widget xmlns   = "http://www.w3.org/ns/widgets"
    xmlns:gap   = "http://phonegap.com/ns/1.0"
    id          = "de.vvvvvv.secapp"
    versionCode = "10"
    version     = "1.0.0" >

<!-- versionCode is optional and Android only -->

  <name>vvvvvvv</name>

  <description>
      vvvvvvvvvvvv
  </description>

  <author href="http://vvvvvvv.de" email="info@vvvvvv.de">
      Kim
  </author>

<plugin name="cordova-plugin-geolocation" spec="2.4.1" />

<plugin name="cordova-plugin-whitelist" spec="1.3.1" />
<access origin="*"/>
<allow-intent href="http://*/*"/>
<allow-intent href="https://*/*"/>


<preference name="orientation" value="portrait" />

<!-- https://makeappicon.com/ios10icon -->
<icon src="res/icons/ios/Icon-App-20x20@2x.png" platform="ios" width="20" height="20" />
<icon src="res/icons/ios/Icon-App-20x20@3x.png" platform="ios" width="40" height="40" />
...

Only when I turn the app to the background, I receive the IOS request to allow the location request (should come when I first do the onclick -> geolocation while having the app in the foreground).

仅在应用程序后台激活听起来是 Content-Security-Policy 问题的症状 ()。

要解决问题,请确保您的 Content-Security-Policy 元标记包含 default-srcgap://readyfile: 条目。例如:

<meta http-equiv="Content-Security-Policy" content="default-src * gap://ready file:; style-src 'self' 'unsafe-inline'; img-src 'self' data:; script-src * 'unsafe-inline' 'unsafe-eval'">

Sometimes I get a geolocation result after a long time, sometimes not. I've tried all possible combinations on the three PositionOptions.

maximumAge 设置为 120000 意味着可以使用最多 2 分钟的位置(由 OS 缓存)。要强制新位置,请将其设置为零:

{
    enableHighAccuracy: false
    maximumAge: 0,
    timeout: 2000
}

如果将 enableHighAccuracy 设置为 true,这会使用 GPS 硬件来锁定,因此请设置足够的超时以允许其锁定足够多的卫星:

{
    enableHighAccuracy: true
    maximumAge: 0,
    timeout: 30000
}

有关 PositionOptions 的完整说明,请参阅 Mozilla docs