Question

嘿伙计我有问题，当我创建一个新的Google Api客户端实例时，我调用了方法'。connect'，我得到一个Exception，它说GoogleApiClient尚未连接。

MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    this.googleApiClient = new GoogleApiClient.Builder(this)
        .addApi(LocationServices.API)
        .addConnectionCallbacks(this)
        .addOnConnectionFailedListener(this)
        .build();

    //Setup LocationRequest
    this.locationRequest = LocationRequest.create()
            .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
            .setInterval(1000 * 10)
            .setInterval(1000 * 3);

    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        return;
    }
    LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
}
@Override
public void onStart(){
    super.onStart();
    this.googleApiClient.connect();
}

@Override
public void onStop(){
    super.onStop();
    this.googleApiClient.disconnect();
}

例外：

08-27 22:54:04.536 11610-11610/at.ideafactory.spotted E/AndroidRuntime: FATAL EXCEPTION: main
                                                                    Process: at.ideafactory.spotted, PID: 11610
                                                                    java.lang.RuntimeException: Unable to start activity ComponentInfo{at.ideafactory.spotted/at.ideafactory.spotted.Activity.Main.MainActivity}: java.lang.IllegalStateException: GoogleApiClient is not connected yet.
                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2596)
                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2653)
                                                                        at android.app.ActivityThread.access$800(ActivityThread.java:156)
                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)
                                                                        at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                        at android.os.Looper.loop(Looper.java:157)
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5872)
                                                                        at java.lang.reflect.Method.invokeNative(Native Method)
                                                                        at java.lang.reflect.Method.invoke(Method.java:515)
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674)
                                                                        at dalvik.system.NativeStart.main(Native Method)
                                                                     Caused by: java.lang.IllegalStateException: GoogleApiClient is not connected yet.
                                                                        at com.google.android.gms.internal.zzpy.zzd(Unknown Source)
                                                                        at com.google.android.gms.location.internal.zzd.requestLocationUpdates(Unknown Source)
                                                                        at at.ideafactory.spotted.Activity.Main.MainActivity.onCreate(MainActivity.java:108)
                                                                        at android.app.Activity.performCreate(Activity.java:5312)
                                                                        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111)
                                                                        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2552)
                                                                        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2653) 
                                                                        at android.app.ActivityThread.access$800(ActivityThread.java:156) 
                                                                        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355) 
                                                                        at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                                        at android.os.Looper.loop(Looper.java:157) 
                                                                        at android.app.ActivityThread.main(ActivityThread.java:5872) 
                                                                        at java.lang.reflect.Method.invokeNative(Native Method) 
                                                                        at java.lang.reflect.Method.invoke(Method.java:515) 
                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) 
                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:674) 
                                                                        at dalvik.system.NativeStart.main(Native Method)

也许有人可以帮我解决这个问题。

亲切的问候

Answer 1

这是因为你试图在onStart中连接（）。在onStart和onStop方法中放置一个空值检查，如下所示

</body>

同样在onStop（）中进行空检查。

修改

你应该这样做。首先在您的活动中实施这些。在OnConnected回调内部执行如下操作。

@Override public void onStart(){ super.onStart(); if(this.googleApiClient != null){ this.googleApiClient.connect(); } }

Android Google API客户端未连接

1 个答案: