如何在颤振中从firebase存储中删除图像

Question

如何在flutter中从firebase存储中删除图像

                  Padding(
                    padding: const EdgeInsets.all(12.0),
                    child: Container(
                      child: InkWell(
                          onTap: (){
                            Widget cancelButton = FlatButton(
                              child: Text("Cancel"),
                              onPressed:  () {
                                Navigator.pop(context);
                              },
                            );
                            Widget continueButton = FlatButton(
                              child: Text("Continue"),
                              onPressed:  () async{
                                final FirebaseStorage storage = FirebaseStorage(storageBucket: 'gs://djgwalior-15404.appspot.com/');
                                await storage.ref().child('birthday/'+snapshot.data[index].data['name']+'.jpeg').delete();
                                Firestore.instance.collection("birthday")

                                    .document(snapshot.data[index].documentID)
                                    .delete().whenComplete((){
                                  Navigator.pop(context);
                                  Scaffold.of(context).showSnackBar(SnackBar(content: Text("Booking Done")));
                                }).catchError((e){
                                  debugPrint(e);
                                });
                              },
                            );

                            // set up the AlertDialog
                            AlertDialog alert = AlertDialog(
                              title: Text("Delete Item"),
                              content: Text("Are you sure?"),
                              actions: [
                                cancelButton,
                                continueButton,
                              ],
                            );

                            // show the dialog
                            showDialog(
                              context: context,
                              builder: (BuildContext context) {
                                return alert;
                              },
                            );                            },
                          child: Icon(Icons.delete, color: Colors.red,)),
                    ),
                  )

错误：

E/StorageException(11472): StorageException has occurred.
E/StorageException(11472): Object does not exist at location.
E/StorageException(11472):  Code: -13010 HttpResult: 404
E/StorageException(11472): {  "error": {    "code": 404,    "message": "Not Found.  Could not delete object",    "status": "DELETE_OBJECT"  }}
E/StorageException(11472): java.io.IOException: {  "error": {    "code": 404,    "message": "Not Found.  Could not delete object",    "status": "DELETE_OBJECT"  }}
E/StorageException(11472):  at com.google.firebase.storage.network.NetworkRequest.parseResponse(com.google.firebase:firebase-storage@@17.0.0:455)
E/StorageException(11472):  at com.google.firebase.storage.network.NetworkRequest.parseErrorResponse(com.google.firebase:firebase-storage@@17.0.0:435)
E/StorageException(11472):  at com.google.firebase.storage.network.NetworkRequest.processResponseStream(com.google.firebase:firebase-storage@@17.0.0:426)
E/StorageException(11472):  at com.google.firebase.storage.network.NetworkRequest.performRequest(com.google.firebase:firebase-storage@@17.0.0:280)
E/StorageException(11472):  at com.google.firebase.storage.network.NetworkRequest.performRequest(com.google.firebase:firebase-storage@@17.0.0:294)
E/StorageException(11472):  at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(com.google.firebase:firebase-storage@@17.0.0:70)
E/StorageException(11472):  at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(com.google.firebase:firebase-storage@@17.0.0:62)
E/StorageException(11472):  at com.google.firebase.storage.DeleteStorageTask.run(com.google.firebase:firebase-storage@@17.0.0:58)
E/StorageException(11472):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
E/StorageException(11472):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
E/StorageException(11472):  at java.lang.Thread.run(Thread.java:764)
E/flutter (11472): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: PlatformException(deletion_error, Object does not exist at location., null)
E/flutter (11472): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:564:7)
E/flutter (11472): #1      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:302:33)
E/flutter (11472): <asynchronous suspension>
E/flutter (11472): #2      StorageReference.delete (package:firebase_storage/src/storage_reference.dart:152:10)
E/flutter (11472): #3      _Birthday_showState._view.<anonymous closure>.<anonymous closure> (package:getbookings/birthday_show.dart:225:118)
E/flutter (11472): <asynchronous suspension>
E/flutter (11472): #4      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:511:14)
E/flutter (11472): #5      _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:566:30)
E/flutter (11472): #6      GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:166:24)
E/flutter (11472): #7      TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:240:9)
E/flutter (11472): #8      TapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:177:9)
E/flutter (11472): #9      PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:436:9)
E/flutter (11472): #10     PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:73:12)
E/flutter (11472): #11     PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:101:11)
E/flutter (11472): #12     _WidgetsFlutterBinding&BindingBase&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:221:19)
E/flutter (11472): #13     _WidgetsFlutterBinding&BindingBase&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:199:22)
E/flutter (11472): #14     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)
E/flutter (11472): #15     _WidgetsFlutterBinding&BindingBase&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)
E/flutter (11472): #16     _WidgetsFlutterBinding&BindingBase&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)
E/flutter (11472): #17     _rootRunUnary (dart:async/zone.dart:1136:13)
E/flutter (11472): #18     _CustomZone.runUnary (dart:async/zone.dart:1029:19)
E/flutter (11472): #19     _CustomZone.runUnaryGuarded (dart:async/zone.dart:931:7)
E/flutter (11472): #20     _invoke1 (dart:ui/hooks.dart:233:10)
E/flutter (11472): #21     _dispatchPointerDataPacket (dart:ui/hooks.dart:154:5)
E/flutter (11472):

Answer 1

从存储中删除对象的功能是正确的。 您可能想要验证对象的路径是否正确或对象是否仍然存在。