我正在编写基于位置的应用。我的位置适用于API＆lt; 23但是每当我在API 23的设备上运行时，它就会给出错误＃34; GoogleApiClient尚未连接＆＃34;。
我查看GoogleApiClient已连接的日志。但我不明白这个问题是什么。以下是日志直到应用程序崩溃。
01-13 05:20:26.200 2028-2028/com.example.raj.wallpaper1 D/numbering: startGoogleApiClient
01-13 05:20:26.206 2028-2028/com.example.raj.wallpaper1 D/numbering: onCreate
01-13 05:20:26.233 2028-2028/com.example.raj.wallpaper1 D/numbering: onStart
01-13 05:20:26.233 2028-2028/com.example.raj.wallpaper1 D/numbering: onResume
01-13 05:20:26.452 2028-2028/com.example.raj.wallpaper1 D/numbering: Location services connected.
01-13 05:20:26.453 2028-2028/com.example.raj.wallpaper1 D/numbering: googleApiClient: com.google.android.gms.internal.zzaal@d66379f
01-13 05:20:26.453 2028-2028/com.example.raj.wallpaper1 D/numbering: startLocationUpdates()
01-13 05:20:26.453 2028-2028/com.example.raj.wallpaper1 D/numbering: checkPermission()
01-13 05:20:26.453 2028-2028/com.example.raj.wallpaper1 D/numbering: googleApiClient: com.google.android.gms.internal.zzaal@d66379f
01-13 05:20:26.453 2028-2028/com.example.raj.wallpaper1 D/numbering: askPermission()
01-13 05:20:26.553 2028-2028/com.example.raj.wallpaper1 D/numbering: onResume
01-13 05:20:47.053 2028-2028/com.example.raj.wallpaper1 D/numbering: onRequestPermissionsResult()
01-13 05:20:47.058 2028-2028/com.example.raj.wallpaper1 D/numbering: startLocationUpdates()
01-13 05:20:47.058 2028-2028/com.example.raj.wallpaper1 D/numbering: checkPermission()
01-13 05:20:47.059 2028-2028/com.example.raj.wallpaper1 D/numbering: googleApiClient: com.google.android.gms.internal.zzaal@d66379f
01-13 05:20:47.059 2028-2028/com.example.raj.wallpaper1 D/numbering: startLocationServices
我的错误日志：
Process: com.example.raj.wallpaper1, PID: 2028
java.lang.RuntimeException: Failure delivering result ResultInfo{who=@android:requestPermissions:, request=940, result=-1, data=Intent { act=android.content.pm.action.REQUEST_PERMISSIONS (has extras) }} to activity {com.example.raj.wallpaper1/com.example.raj.wallpaper1.CuisinesList}: java.lang.IllegalStateException: GoogleApiClient is not connected yet.
at android.app.ActivityThread.deliverResults(ActivityThread.java:3720)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3763)
at android.app.ActivityThread.-wrap16(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1403)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
Caused by: java.lang.IllegalStateException: GoogleApiClient is not connected yet.
at com.google.android.gms.internal.zzaak.zzb(Unknown Source)
at com.google.android.gms.internal.zzaan.zzb(Unknown Source)
at com.google.android.gms.internal.zzaal.zzb(Unknown Source)
at com.google.android.gms.internal.zzarl.requestLocationUpdates(Unknown Source)
at com.example.raj.wallpaper1.CuisinesList.startLocationUpdates(CuisinesList.java:384)
at com.example.raj.wallpaper1.CuisinesList.onRequestPermissionsResult(CuisinesList.java:419)
at android.app.Activity.dispatchRequestPermissionsResult(Activity.java:6567)
at android.app.Activity.dispatchActivityResult(Activity.java:6446)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3716)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3763)
at android.app.ActivityThread.-wrap16(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1403)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5443)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
这是我正在尝试运行的代码。
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_cuisines_list);
startGoogleApiClient();
latitude = (TextView) findViewById(R.id.latitude);
longitude = (TextView) findViewById((R.id.longitude));
}
@Override
protected void onStart() {
super.onStart();
Log.d("numbering", "onStart");
googleApiClient.connect();
}
@Override
protected void onResume() {
Log.d("numbering", "onResume");
super.onResume();
}
@Override
protected void onPause() {
super.onPause();
if (googleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(googleApiClient, this);
googleApiClient.disconnect();
};
}
public void startGoogleApiClient()
{
Log.d("numbering", "startGoogleApiClient");
googleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
public void startLocationServices()
{
Log.d("numbering", "startLocationServices");
locationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000) ; // 10 seconds, in milliseconds
}
@Override
public void onConnected(@Nullable Bundle bundle) {
Log.d("numbering", "Location services connected.");
Log.d("numbering", "googleApiClient: " + googleApiClient.toString());
startLocationUpdates();
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
if (connectionResult.hasResolution() && this instanceof Activity) {
try {
Activity activity = (Activity) this;
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(activity, CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
/*
* If no resolution is available, display a dialog to the
* user with the error.
*/
Log.d("numbering", "Location services connection failed with code " + connectionResult.getErrorCode());
}
}
@Override
public void onLocationChanged(Location location) {
Log.d("numbering", "onLocationChanged()");
if(googleApiClient.isConnected()) {
latitude.setText(String.valueOf(location.getLatitude()));
longitude.setText(String.valueOf(location.getLongitude()));
}
}
public void startLocationUpdates() {
Log.d("numbering", "startLocationUpdates()");
if ( checkPermission() ) {
Log.d("numbering", "googleApiClient: " + googleApiClient.toString());
startLocationServices();
LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
}
else
{
Log.d("numbering", "googleApiClient: " + googleApiClient.toString());
askPermission();
}
}
private boolean checkPermission() {
Log.d("numbering", "checkPermission()");
// Ask for permission if it wasn't granted yet
return (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED );
}
private void askPermission() {
Log.d("numbering", "askPermission()");
ActivityCompat.requestPermissions(
this,
new String[] { Manifest.permission.ACCESS_FINE_LOCATION },
REQ_PERMISSION
);
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
Log.d("numbering", "onRequestPermissionsResult()");
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch ( requestCode ) {
case REQ_PERMISSION: {
if ( grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED ){
// Permission granted
startLocationUpdates();
} else {
// Permission denied
permissionsDenied();
}
break;
}
}
}
private void permissionsDenied() {
Log.d("numbering", "permissionsDenied()");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(Manifest.permission.ACCESS_FINE_LOCATION)) {
showMessageOKCancel("You need to allow locationForService permissions to run the application ",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQ_PERMISSION);
}
}
});
Log.w("numbering", "permissionsDenied()");
}
return;
}
}
private void showMessageOKCancel(String message, DialogInterface.OnClickListener okListener) {
new AlertDialog.Builder(this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show();
}
我已经尝试了所有可能的解决方案。请让我知道我错过了什么。
答案 0 :(得分：2)
问题在于userInput = input("Would you like to go to program 2? ")
if userInput == "yes":
bar.foo()
方法。
在授予所需权限后，在GoogleApiClient能够正确连接之前调用方法onRequestPermissionsResult。
您应该将startLocationUpdates()置于startLocationUpdates()回调方法中，以确保GoogleApiClient已正确初始化并已连接
之所以发生这种情况只是从API 23开始，因为您将仅从此API开始调用此方法，该API已更改了向用户请求某些权限的方式