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cloudfirestoreflatter不能在文档上设置数据

google-cloud-firestore flutter android

Abhishek Mehandiratta · 技术社区 · 6 年前

我正在尝试制作一个flutter应用程序,收集一些学生数据并将其存储到firestore。我想在名为users的集合中添加有关用户的文档,并在具有自定义id(比如uid)的文档中添加。

我面临的问题是,我无法在这样一个文档上设置数据,因为该文档和集合都不存在。现在,这实际上并不是问题的原因,因为它在使用CloudFireStore的JavaScript库时工作。

我的依赖项:

dependencies:
  flutter:
    sdk: flutter
  google_sign_in: ^4.0.1+1
  scoped_model: ^1.0.1
  http: ^0.12.0+1
  shared_preferences: ^0.4.2
  rxdart: ^0.20.0
  file_picker: ^1.2.0
  flutter_pdf_viewer: ^0.2.0
  firebase_auth: ^0.8.1+4
  firebase_core: ^0.3.1+1
  firebase_messaging: ^4.0.0+1
  firebase_storage: ^2.1.0+1
  cloud_firestore: ^0.9.5+2

迄今为止的代码:

Future<bool> storeStudentData(Map<String, Object> data) async {
  String uid = authenticatedUser.id;

  DocumentReference docRef = db.collection('users').document(uid);

  try {
    await docRef.setData(data);
    print('Done setting data');
    return true;
  } catch (err) {
    print('EERRRR setting data');
    return false;
  }
}

我的firestore规则:

service cloud.firestore {
  match /databases/{database}/documents {
  match /{document=**} {
    allow read, write: if request.auth != null;
    }
  }
}

[ERROR:flutter/shell/platform/android/platform_view_android_jni.cc(40)] 
java.lang.NoSuchMethodError: No virtual method 
set(Ljava/util/Map;)Lcom/google/android/gms/tasks/Task; in class 
Lcom/google/firebase/firestore/DocumentReference; or its super classes 
(declaration of 'com.google.firebase.firestore.DocumentReference' appears in 
/data/app/com.example.rla_official-1/base.apk:classes2.dex)
E/flutter (24452):      at 
io.flutter.plugins.firebase.cloudfirestore.
CloudFirestorePlugin.onMethodCall(CloudFirestorePlugin.java:523)
E/flutter (24452):      at 
io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler
.onMessage(MethodChannel.java:201)
E/flutter (24452):      at 
io.flutter.view.FlutterNativeView$PlatformMessageHandlerImpl
.handleMessageFromDart(FlutterNativeView.java:188)
E/flutter (24452):      at io.flutter.embedding.engine.FlutterJNI.
handlePlatformMessage(FlutterJNI.java:202)
E/flutter (24452):      at android.os.MessageQueue.nativePollOnce(Native 
Method)
E/flutter (24452):      at 
android.os.MessageQueue.next(MessageQueue.java:328)
E/flutter (24452):      at android.os.Looper.loop(Looper.java:148)
E/flutter (24452):      at 
android.app.ActivityThread.main(ActivityThread.java:6339)
E/flutter (24452):      at java.lang.reflect.Method.invoke(Native Method)
E/flutter (24452):      at 
com.android.internal.os.
ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1084)
E/flutter (24452):      at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:945)
E/flutter (24452):
F/flutter (24452): 
[FATAL:flutter/shell/platform/android/platform_view_android_jni.cc(77)] 
Check failed: CheckException(env).
F/libc    (24452): Fatal signal 6 (SIGABRT), code -6 in tid 24452 
(le.rla_official)
Lost connection to device.

另外,集合中没有用户,因此在运行函数时,集合中不存在文档。

我在其他一些android(java)项目中进行了尝试,效果很好。

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