Question

 private void openMap1() {
        String url = "http://t0.tianditu.gov.cn/vec_c/wmts?tk=15fcda84316f12183782bd4511f18d79";
        workspace = new Workspace();
        DatasourceConnectionInfo info = new DatasourceConnectionInfo();
        info.setServer(url);
        info.setEngineType(EngineType.OGC);
        info.setDriver("WMTS");
        info.setAlias("tianditu_wmts");
        Datasource datasource = workspace.getDatasources().open(info);
        if (datasource == null) {
            Toast.makeText(this, "数据源打开失败", Toast.LENGTH_SHORT).show();
            return;
        }
    }

按照博客里边的把代码换了一下加载不出来天地图二维图 

Answer 1

您好，这边看了您的代码，没有看到添加图层呢应该再加上

mapcontrol.getMap().getLayers().add(datasource.getDatasets().get(0),true);

您那边加上看看有没有呢

Comments

我测试加载天地图报错呢  我加错地方了吗是  您是加到哪一块了   您没有报我之前的错误吗

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这是我添加天地图的代码

DatasourceConnectionInfo dinfo = new DatasourceConnectionInfo();
dinfo.setAlias("TianDiTu12");
dinfo.setDriver("WMTS");
String url = "http://t0.tianditu.gov.cn/img_c/wmts?&DPI=96&tk=410199522650980db3dfb843a809a2a4";
dinfo.setEngineType(EngineType.OGC);
dinfo.setServer(url);
Datasource d1 = woWorkspace.getDatasources().open(dinfo);
mapControl.getMap().getLayers().add(d1.getDatasets().get(0),true);
mapControl.getMap().refresh();

链接：https://pan.baidu.com/s/11S8TZErUHbHF4nzcEvnhBA 
提取码：8754 

这是二维点动画的demo其中点为固定点，通过一线程实现，您可以得到三维飞机的图层设置为动态点的坐标

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好的 非常感谢您 的解答

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我把您这个代码加到我那里边直接闪退报错了   不加没有事  加了就是闪退报错的

报错 那行是：

Datasource d1 = workspace.getDatasources().open(dinfo);

错误如下：

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.map, PID: 29332
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.map/com.example.map.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.supermap.data.Datasources com.supermap.data.Workspace.getDatasources()' on a null object reference
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4060)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4247)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:91)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2613)
        at android.os.Handler.dispatchMessage(Handler.java:110)
        at android.os.Looper.loop(Looper.java:219)
        at android.app.ActivityThread.main(ActivityThread.java:8668)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109)
     Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'com.supermap.data.Datasources com.supermap.data.Workspace.getDatasources()' on a null object reference
        at com.example.map.MainActivity.onCreate(MainActivity.java:202)
        at android.app.Activity.performCreate(Activity.java:8214)
        at android.app.Activity.performCreate(Activity.java:8202)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1320)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4033)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4247) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:91) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2613) 
        at android.os.Handler.dispatchMessage(Handler.java:110) 
        at android.os.Looper.loop(Looper.java:219) 
        at android.app.ActivityThread.main(ActivityThread.java:8668) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109) 
 

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在地图打开前要用map.setworkspace关联工作空间