Question

这段代码给了我一些头痛：

regions = L.mapbox.featureLayer().loadURL('somefile.geojson');
layer.on('ready', function(e) {
     var regionBounds;
     console.log(regions);
     regions.eachLayer(function(lr) { //This function fires about one of two site loads.
         if(lr.feature.properties.title == '{{ $region->name }}') {
             regionBounds = lr.getBounds();
         }
     });

     layer.eachLayer(function(lr) {
         if(lr.feature.geometry.type == 'Point') {
              lr.setIcon(L.divIcon(icon));
         }
     });

     map.fitBounds(regionBounds);
}

当eachLayer()失败时，regions _request属性设置为XMLHttpRequest，当map正确加载时为null，但我不确定它是什么意思。如果有人可以帮我解决这个问题，我会很感激，并且显然可以在每个网站上加载此功能。

Answer 1

您的regions功能未连接到layer，它已连接到regions.on('ready', ...)（我猜其他地方已定义）。如果将其更改为somefile.geojson，则在加载<key>CFBundleURLTypes</key> <array> <dict> <key>CFBundleURLSchemes</key> <array> <string>fb907580375984874</string> </array> </dict> </array> <key>CFBundleVersion</key> <string>1</string> <key>FacebookAppID</key> <string>907580375984874</string> <key>FacebookDisplayName</key> <string>Appname</string> <key>LSApplicationQueriesSchemes</key> <array> <string>fbapi</string> <string>fbapi20130214</string> <string>fbapi20130410</string> <string>fbapi20130702</string> <string>fbapi20131010</string> <string>fbapi20131219</string> <string>fbapi20140410</string> <string>fbapi20140116</string> <string>fbapi20150313</string> <string>fbapi20150629</string> <string>fbauth</string> <string>fbauth2</string> <string>fb-messenger-api20140430</string> </array> <key>LSRequiresIPhoneOS</key> <true/> <key>NSAppTransportSecurity</key> <dict> <key>NSExceptionDomains</key> <dict> <key>akamaihd.net</key> <dict> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> <key>facebook.com</key> <dict> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> <key>fbcdn.net</key> <dict> <key>NSExceptionRequiresForwardSecrecy</key> <false/> <key>NSIncludesSubdomains</key> <true/> </dict> </dict> </dict>之前函数将不会执行，并且应在每次加载页面时执行。

为什么Mapbox eachLayer函数在每次加载页面时都不会触发？

1 个答案: