如何从Firebase(java)删除特定的孩子? [英] How to delete a specific child from Firebase (java)?

问题描述

我想从Firebase数据库中仅删除第一个孩子( L7jrJ6DtQWrmZsC4zvT )，并在Android应用中选择一个选项.我搜索了几个地方，但找不到它.您只有一个选项可以删除整个数据库.有人可以帮忙吗?

I want to delete only the 1st child (L7jrJ6DtQWrmZsC4zvT) from Firebase database with an option in an Android app. I searched several places and could not find it. You only have one option to delete a whole database. Can anyone help?

推荐答案

要删除单个对象，可以直接在引用上使用 removeValue()方法，如下所示:

To delete a single object you can use removeValue() method directly on the reference like this:

DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();
rootRef.child("calendario").child("-L7jrJ6DtQWrmZsC4zvT").removeValue();

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