Question

早上好

因此，我能够在某种程度上从我的firebase文档和集合中加载信息......

当我的馆藏有1个文件时，一切顺利。当它有超过1个文档时，应用程序会中断。

所以，我有这个：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Gaze_Timer : MonoBehaviour {

    public int gazeTime = 3; //the amount of time needed to look to teleport
    public GameObject playerCam; //the players camera
    private Vector3 startingPosition;
    private Vector3 changePosition;

    private bool startCoRoutine; //is the co-routine running

    void Start() {
        startingPosition = transform.localPosition;
        changePosition = startingPosition;
        startCoRoutine = false; //testing this out as true or false
    }

    void Update() {
        //...
    }

    // when I gaze 
    public void PointerEnter() {
        Debug.Log("I entered.");
        if (startCoRoutine) {
            StopCoroutine("waypointTimerEvent");
        } else {
            StartCoroutine("waypointTimerEvent", gazeTime);
        }
        startCoRoutine = !startCoRoutine;
    }

    // when I look away
    public void PointerExit() {
        Debug.Log("I exited.");
        if (startCoRoutine) {
            StopCoroutine("waypointTimerEvent");
            startCoRoutine = false;
        }
    }

    IEnumerator waypointTimerEvent(float waitTime) {
        yield return new WaitForSeconds(waitTime);
        Debug.Log("I waited " + waitTime + " seconds");
        GetComponent<Renderer>().material.color = Color.blue;
        changePosition.y += 0.1f;
        transform.localPosition = changePosition;
    }
}

对于此Firestore设置：https://imgur.com/a/pmBcE

然后我收到此错误：db.collection("KitListCategorie").get().addOnSuccessListener { snapshot -> for (document1 in snapshot.documents) { val data1 = document1.data val weights = data1["categoryName"] as String val misc = data1["categoryName"] as String categorySpinnerArray.add(weights) categorySpinnerArray.add(misc) } categorySpinnerArrayAdapter.notifyDataSetChanged() }

我做错了什么？

由于

Answer 1

你犯了一个简单的错误。在Firebase中的屏幕截图中，您可以使用＃34; categoryName＆＃34;标题为＆＃34; categoryname＆＃34;所以它返回null并且kotlin抛出异常。

Firebase-Firestore未加载2个文档＆＃39;信息同时

1 个答案: