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codenameone本机映射脱机?

codenameone maps ios android

AhMaD AbUIeSa · 技术社区 · 7 年前

我注意到,当我在codenameone中使用本机地图,并尝试更改相机位置时,地图变为空白,是否仍然可以在没有Internet连接的情况下使用本机地图功能?

final String HTML_API_KEY = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
 final MapContainer cnt = new MapContainer(HTML_API_KEY);
cnt.addMarker(EncodedImage.createFromImage(MarkerImg, false), new Coord(latitude, langitude), "", "", e3->{
});
Container root = LayeredLayout.encloseIn(
BorderLayout.center(cnt)
);
mapForm.add(BorderLayout.CENTER, root);
mapForm.revalidate();

更新:

使用离线方法时,我在iOS上遇到的异常:

MBTilesProvider provider = null;
        try{
            if ( MBTilesProvider.isLoaded("xxxxx.cn1tiles") ){
                provider = new MBTilesProvider("xxxxx.cn1tiles");
            } else {
                provider = MBTilesProvider.create("xxxxx.cn1tiles",fetchResourceFile().getData("xxxxx.cn1tiles"));
            }
        }catch(Exception e){
            e.printStackTrace();
            new GlobalOperations().ShowDialog(null, "OffLine Map", "there was a problem with loading the map file "+e.getMessage());
            return;
        }

java.lang.NullPointerException
    at ca_weblite_codename1_mapbox_MBTilesProvider.create:221
    at userclasses_StateMachine.beforeMap:5850
    at generated_StateMachineBase.beforeShow:5850
    at com_codename1_ui_util_UIBuilder.showForm:2518
    at com_codename1_ui_util_UIBuilder.showForm:2565

感谢帮助使地图在没有互联网连接的情况下工作

当做,