我正在尝试创建一个可识别位置的商家搜索应用。要做到这一点，我使用Google Places Api，特别是Places.GEO_DATA_API和LocationServices.API。这个想法是用户可以使用他们当前的位置或使用autoComplete搜索来输入地址。我的问题是，我认为两个api在调用onConnected()时混淆了，因为我一直收到这个错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: edu.depaul.csc472.coffeeshoplocator, PID: 9420
java.lang.IllegalStateException: GoogleApiClient is not connected yet.
at com.google.android.gms.internal.zzrb.zzb(Unknown Source)
at com.google.android.gms.internal.zzrf.zzb(Unknown Source)
at com.google.android.gms.internal.zzrd.zzb(Unknown Source)
at com.google.android.gms.location.internal.zzd.requestLocationUpdates(Unknown Source)
at edu.depaul.csc472.coffeeshoplocator.MainActivity.startLocationUpdates(MainActivity.java:233)
at edu.depaul.csc472.coffeeshoplocator.MainActivity.getLocation(MainActivity.java:241)
at edu.depaul.csc472.coffeeshoplocator.MainActivity.onConnected(MainActivity.java:263)
at com.google.android.gms.common.internal.zzk.zzp(Unknown Source)
at com.google.android.gms.internal.zzrd.zzn(Unknown Source)
at com.google.android.gms.internal.zzrb.zzass(Unknown Source)
at com.google.android.gms.internal.zzrb.onConnected(Unknown Source)
at com.google.android.gms.internal.zzrf.onConnected(Unknown Source)
at com.google.android.gms.internal.zzqr.onConnected(Unknown Source)
at com.google.android.gms.common.internal.zzj$1.onConnected(Unknown Source)
at com.google.android.gms.common.internal.zze$zzj.zzavj(Unknown Source)
at com.google.android.gms.common.internal.zze$zza.zzc(Unknown Source)
at com.google.android.gms.common.internal.zze$zza.zzv(Unknown Source)
at com.google.android.gms.common.internal.zze$zze.zzavl(Unknown Source)
at com.google.android.gms.common.internal.zze$zzd.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
有时只会发生。我已成功运行该程序，除了此崩溃外没有任何意外行为。
构建apis的代码如下：
protected synchronized void buildGoogleApiClient(){
mGoogleApiLocation = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiAutoComplete = new GoogleApiClient.Builder(this)
.addApi(Places.GEO_DATA_API)
.enableAutoManage(this,GOOGLE_API_CLIENT_ID,this)
.addConnectionCallbacks(this)
.build();
}
这是我的onConnected()方法，它请求从用户访问精确位置的权限，然后尝试获取用户的位置：
@Override
public void onConnected(Bundle bundle) {
requestForSpecificPermission();
getLocation();
placeArrayAdapter.setGoogleApiClient(mGoogleApiAutoComplete);
}
...和我的getLocation()方法：
private void getLocation(){
try {
location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiLocation);
if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiLocation, locationRequest, this);
}
else{
handleNewLocation(location);
}
}catch (SecurityException e){
Toast.makeText(getApplicationContext(),
"You don't have permission!", Toast.LENGTH_LONG)
.show();
}
}
我的好奇心是：如果从我的理解中你必须连接到onConnected()和两个：为什么这只会在某些时候发生，我怎么会得到这个错误。是否允许首先使用多个客户端，或者如果不允许在同一活动中使用两种不同的技术（apis）？
答案 0 :(得分：1)
请勿在{{1}} / implements ConnectionCallbacks中Activity尝试以下操作：
Fragment然后改变你的方法：
GoogleApiClient.ConnectionCallbacks mGoogleApiLocationCallback = new GoogleApiClient.ConnectionCallbacks() {
@Override
public void onConnected(@Nullable Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
};
GoogleApiClient.ConnectionCallbacks mGoogleApiAutoCompleteCallback = new GoogleApiClient.ConnectionCallbacks() {
@Override
public void onConnected(@Nullable Bundle bundle) {
}
@Override
public void onConnectionSuspended(int i) {
}
};
请务必从protected synchronized void buildGoogleApiClient(){
mGoogleApiLocation = new GoogleApiClient.Builder(context)
.addConnectionCallbacks(mGoogleApiLocationCallback)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiAutoComplete = new GoogleApiClient.Builder(context)
.addConnectionCallbacks(mGoogleApiAutoCompleteCallback)
.addApi(Places.GEO_DATA_API)
.enableAutoManage(this,GOOGLE_API_CLIENT_ID,this)
.build();
}
/ implements GoogleApiClient.ConnectionCallbacks
Activity