使用Marker功能来点击删除途径点,途经点要自定义
时间: 2024-03-12 16:47:21 浏览: 17
好的,这里是使用Marker功能来点击删除途径点,途经点要自定义的Java代码:
首先,在你的布局文件中添加一个地图控件:
```
<com.amap.api.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
```
接着,在你的Activity中初始化地图:
```
private MapView mapView;
private AMap aMap;
private List<Marker> wayPoints = new ArrayList<>(); // 维护途经点的Marker列表
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
aMap = mapView.getMap();
// 点击地图添加途经点
aMap.setOnMapClickListener(new AMap.OnMapClickListener() {
@Override
public void onMapClick(LatLng latLng) {
Marker marker = aMap.addMarker(new MarkerOptions()
.position(latLng)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.way_point_marker))
.anchor(0.5f, 0.5f)); // 自定义途经点的Marker样式
wayPoints.add(marker);
}
});
// 点击途经点删除
aMap.setOnMarkerClickListener(new AMap.OnMarkerClickListener() {
@Override
public boolean onMarkerClick(Marker marker) {
if (wayPoints.contains(marker)) {
marker.remove();
wayPoints.remove(marker);
}
return true;
}
});
}
```
完整的代码示例:
```
public class MainActivity extends AppCompatActivity {
private MapView mapView;
private AMap aMap;
private List<Marker> wayPoints = new ArrayList<>(); // 维护途经点的Marker列表
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mapView = findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
aMap = mapView.getMap();
// 点击地图添加途经点
aMap.setOnMapClickListener(new AMap.OnMapClickListener() {
@Override
public void onMapClick(LatLng latLng) {
Marker marker = aMap.addMarker(new MarkerOptions()
.position(latLng)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.way_point_marker))
.anchor(0.5f, 0.5f)); // 自定义途经点的Marker样式
wayPoints.add(marker);
}
});
// 点击途经点删除
aMap.setOnMarkerClickListener(new AMap.OnMarkerClickListener() {
@Override
public boolean onMarkerClick(Marker marker) {
if (wayPoints.contains(marker)) {
marker.remove();
wayPoints.remove(marker);
}
return true;
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
mapView.onDestroy();
}
@Override
protected void onResume() {
super.onResume();
mapView.onResume();
}
@Override
protected void onPause() {
super.onPause();
mapView.onPause();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mapView.onSaveInstanceState(outState);
}
}
```
注意:在使用高德地图SDK之前,需要先申请高德开发者账号,并且获取到对应的App Key。在AndroidManifest.xml文件中添加以下代码:
```
<meta-data
android:name="com.amap.api.v2.apikey"
android:value="your_app_key" />
```