如何获取我自动生成的firebase节点密钥？(How to get my automated generated firebase node key?)

如何获取我自动生成的firebase节点密钥？(How to get my automated generated firebase node key?)

在我的Android项目中，我想更新我的状态，但我无法获得我想要更新的自动密钥。

这是我在项目中使用的代码

String key = mGroupRef.child("users").push().getKey(); System.out.println("++key_____" +key);

In my android project I want to update my status but I can't get the automated key which I want to update.

This is the code where I used in my project

String key = mGroupRef.child("users").push().getKey(); System.out.println("++key_____" +key);

最满意答案

它可能会有所帮助。

创建一个模型class

public class Model { public String uid; public String getUid() { return uid; } public void setUid(String uid) { this.uid = uid; } }

保存status

ArrayList<Model>list=new ArrayList<Model>(); Save.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Model model = new Model(); Firebase firebase=new Firebase("your firebase url"); String uid = firebase.child("order").push().getKey(); model.setUid(uid); list.add(model); FirebaseDatabase.getInstance().getReference().child("order").child(uid).child("status").setValue(value); Log.i("uid", uid); } });

更新status 。

update.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { FirebaseDatabase.getInstance().getReference().child("order").child(list.get(position).getUid()).child("status").setValue(updated value); } });

It may be helpful.

create a model class

public class Model { public String uid; public String getUid() { return uid; } public void setUid(String uid) { this.uid = uid; } }

save status

ArrayList<Model>list=new ArrayList<Model>(); Save.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Model model = new Model(); Firebase firebase=new Firebase("your firebase url"); String uid = firebase.child("order").push().getKey(); model.setUid(uid); list.add(model); FirebaseDatabase.getInstance().getReference().child("order").child(uid).child("status").setValue(value); Log.i("uid", uid); } });

update status.

update.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { FirebaseDatabase.getInstance().getReference().child("order").child(list.get(position).getUid()).child("status").setValue(updated value); } });