Google 的 DirectionsApi 似乎在 Kotlin 中不起作用

Question

我正在尝试实施 DirectionsApi 以使用 Kotlin 在我的 Android 应用中的 Google 地图上绘制多段线。我使用以下方法添加了所需的库：

implementation 'com.google.maps:google-maps-services:0.9.0'

然后在我的 MapFragment 中包含以下函数：

private fun getGeoContext() : GeoApiContext {
    val geoApiContext = GeoApiContext.Builder()
            .apiKey(getString(R.string.directions_apikey))
            .build()
    return geoApiContext
}

最后，在我的 onMapReady 中，我尝试使用以下方式获取路线结果：

val origin = "Hotel Hillview Munnar, State Highway 16, Moolakadai, Munnar, Kerala, India"
val dest = "Echo Point, Kannan Devan Hills, Kerala, India"

val apiRequest = DirectionsApi.newRequest(getGeoContext())
        apiRequest.origin(origin)
        apiRequest.destination(dest)
        apiRequest.mode(TravelMode.DRIVING)
        apiRequest.setCallback(object : com.google.maps.PendingResult.Callback<DirectionsResult> {
            override fun onResult(result:DirectionsResult) {
                Timber.i("Call Success")
                val routes = result.routes
            }
            override fun onFailure(e:Throwable) {
            }
        })

但总是失败。我检查了 Logcat 日志，发现这是错误：

10-01 17:22:41.248 4112-4193/com.acme.internal E/AndroidRuntime: FATAL EXCEPTION: Rate Limited Dispatcher
    Process: com.acme.internal, PID: 4112
    java.lang.NoClassDefFoundError: Failed resolution of: Ljava/time/LocalDateTime;
        at com.google.maps.internal.OkHttpPendingResult.parseResponse(OkHttpPendingResult.java:241)
        at com.google.maps.internal.OkHttpPendingResult.onResponse(OkHttpPendingResult.java:207)
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:153)
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
        at java.lang.Thread.run(Thread.java:818)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "java.time.LocalDateTime" on path: DexPathList[[zip file "/data/app/com.acme.internal-1/base.apk"],nativeLibraryDirectories=[/data/app/com.acme.internal-1/lib/arm64, /vendor/lib64, /system/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
        at com.google.maps.internal.OkHttpPendingResult.parseResponse(OkHttpPendingResult.java:241) 
        at com.google.maps.internal.OkHttpPendingResult.onResponse(OkHttpPendingResult.java:207) 
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:153) 
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
        at java.lang.Thread.run(Thread.java:818) 
      Suppressed: java.lang.ClassNotFoundException: java.time.LocalDateTime
        at java.lang.Class.classForName(Native Method)
        at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
        at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
            ... 8 more
     Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
10-01 17:22:41.248 4112-4193/com.acme.internal E/AbstractTracker: Can't create handler inside thread that has not called Looper.prepare()

我猜这与使用 LocalDateTime class 的 Google 地图库的一些问题有关，但由于我使用的是 kotlin，因此无法访问所述 class？这个问题有解决办法吗？

Answer 1

我现在自己想出了一个解决方案。这不是最好的解决方法，但可以解决手头的问题。写在这里是为了帮助其他人寻找相同问题的解决方案。

切换 gradle 依赖项：

implementation 'com.google.maps:google-maps-services:0.9.0'

至

implementation 'com.google.maps:google-maps-services:0.2.11'

它应该会修复它。

Google 的 DirectionsApi 似乎在 Kotlin 中不起作用

Google’s DirectionsApi doesnt appear to work in Kotlin

java

android

google-maps

kotlin

google-maps-android-api-2