无法设置设备位置

Question

运行以下代码时出现此错误：

None of the following functions can be called with the arguments supplied: 
public constructor FusedLocationProviderClient(p0: Activity) defined in com.google.android.gms.location.FusedLocationProviderClient
public constructor FusedLocationProviderClient(p0: Context) defined in com.google.android.gms.location.FusedLocationProviderClient

代码：

import android.location.Location
import android.os.Build
import android.os.SystemClock
import com.google.android.gms.location.FusedLocationProviderClient

class startMockLocation {

    fun main() {
        var locationProvider = FusedLocationProviderClient() // I GET THE ERROR HERE
        locationProvider.setMockMode(true)

        val loc = Location("gps")
        val mockLocation = Location("gps") // a string
        mockLocation.latitude = 48.8566  // double
        mockLocation.longitude = 2.3522
        mockLocation.altitude = loc.altitude
        mockLocation.time = System.currentTimeMillis()
        mockLocation.accuracy = 1f
        mockLocation.elapsedRealtimeNanos = SystemClock.elapsedRealtimeNanos()
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            mockLocation.bearingAccuracyDegrees = 0.1f
            mockLocation.verticalAccuracyMeters = 0.1f
            mockLocation.speedAccuracyMetersPerSecond = 0.01f
        }
//        locationManager.setTestProviderLocation(providerName, mockLocation)
        locationProvider.setMockLocation(mockLocation)
    }
}

如何解决此错误？我只是想将设备的位置设置为给定的坐标。我也遇到了更多问题，但这是主要错误。

Answer 1

您需要将当前活动上下文作为参数传递：

var locationProvider = FusedLocationProviderClient(this);

错误是说您可以使用 2 个构造函数，其中一个传递了一个 Activity：

FusedLocationProviderClient(p0: Activity)

还有一个通过了上下文：

FusedLocationProviderClient(p0: Context)

如果这不起作用，您也可以试试这个，我发现它使用得更频繁。我不确定这两种方法之间的区别：

var locationProvider = LocationServices.getFusedLocationProviderClient(this);