一、介绍
主要调用的是com.esri.android.map.Callout类。具体使用方式大体如下：
1、获取到MapView的Callout组件，一个MapView只有一个Callout（可参看源码）
2、定义Callout的样式，通过setStyle方法
3、设置Callout的界面布局
4、在指定点位显示Callout组件
二
、效果图如下
三、代码示例
1、java代码如下
/**
* 初始化地图点击查询弹框
* @param feature 查询到的要素
* @param identifyPoint Callout显示的位置
*/
private final void initMapViewCallout(Feature feature, Point identifyPoint) {
try {
Callout callout = mMapView.getCallout();
callout.setStyle(R.xml.calloutstyle);
callout.setContent(createCallOutContent(feature));
if (mMapView.getCallout().isShowing()) {
mMapView.getCallout().hide();
}
//控制弹框位置
if (feature.getGeometry().getType() == Geometry.Type.POINT) {
Point point = (Point) feature.getGeometry();
mMapView.getCallout().show(point);
} else if (feature.getGeometry().getType() == Geometry.Type.POLYLINE) {
Point point = GeometryEngine.getNearestCoordinate(feature.getGeometry(), identifyPoint, false).getCoordinate();
mMapView.getCallout().show(point);
} else if (feature.getGeometry().getType() == Geometry.Type.POLYGON) {
if (GeometryEngine.contains(feature.getGeometry(), identifyPoint, mMapView.getSpatialReference())) {
mMapView.getCallout().show(identifyPoint);
} else {
Point point = GeometryEngine.getNearestCoordinate(feature.getGeometry(), identifyPoint, false).getCoordinate();
mMapView.getCallout().show(point);
}
}
} catch (Exception e) {
mMapView.getCallout().animatedHide();
e.printStackTrace();
}
}
private View createCallOutContent(Feature feature) {
LayoutInflater layoutInflater = LayoutInflater.from(this);
View calloutView = layoutInflater.inflate(R.layout.callout, null);
ListView listView = (ListView) calloutView.findViewById(R.id.callout_listview);
SimpleAdapter adapter = new SimpleAdapter(this, getCallOutData(feature), R.layout.callout_item,
new String[]{"key", "value"},
new int[]{R.id.key, R.id.value});
listView.setAdapter(adapter);
return calloutView;
}
private List<Map<String, Object>> getCallOutData(Feature feature) {
List<Map<String, Object>> list = new ArrayList<>();
Set set = feature.getAttributes().entrySet();
Iterator it = set.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
if (entry.getKey().toString().indexOf("Shape") != -1 || entry.getKey().toString().indexOf("OBJECTID") != -1)
continue;
Map<String, Object> map = new HashMap<>();
map.put("key", entry.getKey().toString());
map.put("value", entry.getValue().toString());
list.add(map);
}
return list;
}
2、Callout的style样式如下
<?xml version="1.0" encoding="utf-8"?><resources>
<calloutViewStyle>
titleTextColor="#000000" <!-- 标题颜色 -->
titleTextSize = 10; <!-- 标题文字大小 -->
titleTextStyle = 0; <!-- 字体样式 -->
titleTextTypeFace = 0; <!-- 字体类型设置 -->
backgroundColor="#ffffff" <!-- Callout背景颜色 -->
backgroundAlpha="230" <!-- Callout透明度 -->
frameColor="#E8E8E6" <!-- 边框颜色 -->
flat="true" <!-- true表示2D图形，false表示3D图形 -->
cornerCurve="0" <!-- 边框的角的圆润程度 -->
anchor="8" <!-- 锚点的位置-->
</calloutViewStyle>
</resources>
3、Callout的布局文件如下
列表布局如下：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="260dp"
android:layout_height="130dp">
<ListView
android:id="@+id/callout_listview"
android:layout_width="260dp"
android:layout_height="130dp"></ListView>
</LinearLayout>列表里的项目子布局如下：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="260dp"
android:layout_height="wrap_content">
<TextView android:id="@+id/key"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textSize="22sp" />
<TextView android:id="@+id/value"
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:textSize="18sp" />
</LinearLayout>
