PlaceLikelihoodBuffer为空

Question

我在谷歌地图上工作，试图运行一个github项目：“选择当前位置并在地图上显示详细信息”这是链接。但当我运行该项目时，它会在“PlaceLikelihoodBuffer”上抛出空指针异常。null返回的代码块如下所示：

PendingResult<PlaceLikelihoodBuffer> result = Places.PlaceDetectionApi
                .getCurrentPlace(mGoogleApiClient, null);

        result.setResultCallback(new ResultCallback<PlaceLikelihoodBuffer>() {
            @Override
            public void onResult(@NonNull PlaceLikelihoodBuffer likelyPlaces) {
                int i = 0;
                if (!likelyPlaces.getStatus().isSuccess()) {
                    // Request did not complete successfully
                    Toast.makeText(MapsMarkerActivity.this, "Request did not complete successfully", Toast.LENGTH_SHORT).show();
                    likelyPlaces.release();
                    return;
                }
                mLikelyPlaceNames = new String[mMaxEntries];
                mLikelyPlaceAddresses = new String[mMaxEntries];
                mLikelyPlaceAttributions = new String[mMaxEntries];
                mLikelyPlaceLatLngs = new LatLng[mMaxEntries];
                Log.e("result",likelyPlaces.toString());
                for (PlaceLikelihood placeLikelihood : likelyPlaces) {
                    // Build a list of likely places to show the user. Max 5.
                    mLikelyPlaceNames[i] = (String) placeLikelihood.getPlace().getName();
                    mLikelyPlaceAddresses[i] = (String) placeLikelihood.getPlace().getAddress();
                    mLikelyPlaceAttributions[i] = (String) placeLikelihood.getPlace()
                            .getAttributions();
                    mLikelyPlaceLatLngs[i] = placeLikelihood.getPlace().getLatLng();

                    i++;
                    if (i > (mMaxEntries - 1)) {
                        break;
                    }
                }
                // Release the place likelihood buffer, to avoid memory leaks.
                likelyPlaces.release();

                // Show a dialog offering the user the list of likely places, and add a
                // marker at the selected place.
                openPlacesDialog();
            }
        });

实际上，在上面的代码中，likelyPlaces 是 null。我想问为什么可能的地方是空的，以及如何解决这个错误。

更新

以下是日志详细信息

e/结果：PlaceLikelihoodBuffer{status=status{statusCode=ERROR，分辨率=null}，属性=null}

E/AndroidRuntime: FATAL EXCEPTION: main
                                             java.lang.NullPointerException
                                                 at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:394)
                                                 at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
                                                 at android.widget.AbsListView.obtainView(AbsListView.java:2177)
                                                 at android.widget.ListView.measureHeightOfChildren(ListView.java:1247)
                                                 at android.widget.ListView.onMeasure(ListView.java:1159)
                                                 at android.view.View.measure(View.java:15848)
                                                 at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
                                                 at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
                                                 at android.view.View.measure(View.java:15848)

在android.widget.LinearLayout.measureChildBeforeLayout（LinearLayot.java:1404）在android.widget.linearLayou.measure（LinearLayout.java:695）在android.widget.LinearLayet.onMeasure在android.view.view.Measuring（view.java:15848）在android.；view.ViewGroup.MeasuryWhithMargins在android.widget.linearLayeout.Linearlayot.onMeasure（LinearLayout.java:588）在android（ViewGroup.java:5012）在android.widget.FrameLayout.onMeasure（frameLayoutJava:310）在android.support.v7.widgets.ContentFrameLayet.onMeasure（ContentFrameLayout.java:135）在android.；view.view.view.度量（view.java:15848）在android.view.ViewGroup.MeasureChildWidget（ViewGroup.java:5012），在android.widget.frameLaway.onMeasureandroid.widget.FrameLayout.onMeasure上的android.view.ViewGroup.MeasureWithMargins（ViewGroup.java:5012）和android.Wicket.FrameLayout.onMeasure（FrameLayot.java:310）上的android-view.view.view-view.ViewGroup.measure-MeasureChildWithMarrings（ViewGroup.java:5032）和android.Widgets.LinearLayout.LinearLayout.java:1404上的LinearLayeout.MeasueVertical（LinearLayout.java:695）上的android.view.view.measure上的android.widget.LinearLayout.onMeasure（LinearLayot.java:588）和android.view.view.ViewGroup.measureChildWithMargins（ViewGroup.java:5012）位于android.widget.FrameLayout.onMeasures（FrameLayout.java:310）位于com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure（PhoneWindow.java:2189）和Android.view.view.view.java:15848android.view.ViewRootImpl.performTraversals（ViewRootImpr.java:1284）在android.view.ViewRootImpl.measureHierarchy（ViewRootImpl.java:1079）在android.view.ViewRootImpl.PerformTransversals在android.view.ViewRootImpl.doTraversal（ViewRootimp.java:1004）在android.view.ViewRootImpl$TraversalRunnable.run（ViewRootImpl.java:5481）在andro.view.Choreographer$CallbackRecord.run（Choreographer.java:749）在android.view.Choreogrupher.doCallbacks（Choreogropher.java:562）在android.view.choreogracher.doFrame（Choregographer.java:532）在Android.view.Horeograpper$FrameDisplayEventReceiver.run（Choreoographeer.java:735）在Android尔.os.Handler.HandlerCallback（Handler.java:730）在安android.os.Handler.dispatchMessage（Handler.java:92）在安Android.os.Looper.Loopeer.loop（Looper.java:137android.app.ActivityThread.main（ActivityThead.java:5103）位于java.lang.reflect.Method。位于com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:737）的java.lang.reflect.Method.invoke（Method.java:525）和位于dalvik.system.NativeStart的com.andro.internal.os.ZygoteInit.main（ZygoteInit.java:553）的Invokenactive（本机方法）。主（本机方法）

当我们点击获取地点按钮，然后这个错误出现。

Answer 1

你是对的，问题在“地点可能性”，我遇到了同样的问题，经过一些研究发现，我忘记了从谷歌开发人员控制台启用“谷歌Android地点API”。这应该可以解决空指针异常。去这个链接:https://console.developers.google.com。然后选择您连接的应用程序，并点击启用API。然后在下一页搜索Google Places API并启用它，上面的问题就解决了。干杯！