创建具有复合视图的应用程序

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const akView = new MapView({
  container: "akViewDiv",
  map: map,
  extent: {
    // autocasts as new Extent()
    xmin: 396381,
    ymin: -2099670,
    xmax: 3393803,
    ymax: 148395,
    spatialReference: {
      wkid: 5936
    }
  },
  spatialReference: {
    // WGS 1984 Alaska Polar Stereographic
    // projected coordinate system
    wkid: 5936
  },
  ui: {
    // clears all default widgets from the
    // inset view
    components: []
  }
});
// Add the alaska view container as an inset view
mainView.ui.add("akViewDiv", "bottom-left");