Question

我在以棒棒糖版本加载地图时遇到问题，我在地图中搜索时找不到位置。它显示未找到任何位置，但是可以在marsmallow以上版本中使用。我不知道自己做了什么错误。请任何人提供解决方案以找出答案。

public typealias AnyObject = Builtin.AnyObject

Answer 1

在AndroidManifest文件中添加以下权限

 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

Answer 2

首先向清单文件添加权限：将权限添加到清单后：

int permissionPhoneState = ContextCompat.checkSelfPermission("Your Activity Name", 
Manifest.permission.ACCESS_FINE_LOCATION);
                int permissionPhoneState1 = ContextCompat.checkSelfPermission("Your Activity Name", Manifest.permission.ACCESS_COARSE_LOCATION);
                if ((permissionPhoneState == PackageManager.PERMISSION_GRANTED) && (permissionPhoneState1 == PackageManager.PERMISSION_GRANTED)) {
                    LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
                    Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                    location(location);
                } else {
                    ActivityCompat.requestPermissions("Your Activity Name", new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 2);
                }

  private void location(Location location) {
    if (location != null) {
        location.setLatitude(location.getLatitude());
        location.setLongitude(location.getLongitude());
        final MarkerOptions markerOptions = new MarkerOptions();
        final LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
        markerOptions.position(latLng);
     }
  }

希望这对您有帮助

Answer 3

locationManager.requestLocationUpdates()是您正在使用的currentLocation = locationManager.getLastKnownLocation(provider);异步调用，它可能尚未收到您的当前位置，因为异步调用可能尚未完成。确保您使用onLocationChanged()回调来获取位置。

为什么我无法在以下棒棒糖版本中搜索位置？

3 个答案: