Question

我正在尝试在Android应用中实施Google地图。我已配置为获取当前位置并获取地点，街道和其他详细信息的详细信息。

现在，还有另一种情况是用户可以预先选择区域。在这种情况下，我想阅读他选择的区域（坐标）并在谷歌地图上显示区域位置。

这是我的代码：

public void onMapReady(GoogleMap googleMap) {
    Log.d(TAG, "OnMapReady");
    mMap = googleMap;


    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

        return;
    }
    mMap.setOnCameraChangeListener(new GoogleMap.OnCameraChangeListener() {
        @Override
        public void onCameraChange(CameraPosition cameraPosition) {
            Log.d("Camera position change" + "", cameraPosition + "");

            mCenterLatLong = cameraPosition.target;
            mMap.clear();
            try {
                Location mLocation = new Location("");
                mLocation.setLatitude(mCenterLatLong.latitude);
                mLocation.setLongitude(mCenterLatLong.longitude);
                startIntentService(mLocation);
                mLocationMarkerText.setText("Lat : " + mCenterLatLong.latitude + "," + "Long : " + mCenterLatLong.longitude);

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

        return;
    }
}

任何人都可以指导我实现这一目标吗？

根据用户选择的区域获取位置

0 个答案: