[英]How do I get/retrieve multiple data from uid in the firebase database in android?
[英]In firebase, how do I retrieve the uid that was automatically created when pushing?
如何檢索uid(自動創建)作為對象本身的ID,以便以后可以找到該對象並更新其子屬性(如果有)。 謝謝。
例如:
mFirebaseDatabaseReference.child(OBJ_CHILD).push().setValue(friendlyObject);
// I know this process will create a uid for the newly pushed object, and I want to get the uid of the bucket.
嘗試這個:
ref = mFirebaseDatabaseReference.child(OBJ_CHILD).push();
... // create hashmap to push (friendlyObject)
ref.setValue(friendlyValue);
String uid = ref.getKey();
在此處查看更多信息-https: //www.firebase.com/docs/android/guide/saving-data.html在
Getting the Unique ID Generated by push()
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