Question

我必须将我的位置存储在Firebase中并保持更新。我目前可以存储它，但是当位置更改它创建一个新节点时，如何在应用程序开始时只创建一个节点并在每次位置更改时更新它？感谢。

代码：

DatabaseReference rootRef = database.getInstance().getReference();
String key = firebaseData.child("Posicion/").push().getKey();
LatLng latLng = new LatLng(latitude,longitude);
Map<String, Object> childUpdates = new HashMap<>();
childUpdates.put("/Posicion/" + key, latLng);
rootRef.updateChildren(childUpdates);

它创建了这个结构：https://i.stack.imgur.com/SlOQq.png

Answer 1

您正在更改插入和更新之间的节点键。

尝试以下列格式创建节点，例如：

-locations

- id（这个必须是您在应用启动时创建的唯一ID或记录的用户ID）

---- currentLatitude：＆＃34; xxxxxx＆＃34;

---- currentLongitude：＆＃34; yyyyyy＆＃34;

在这种情况下，实现将类似于：

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如何在Firebase上创建节点并对其进行更新

1 个答案: