英文:
Android (Java) SharedPrefs data sync via Firebase - make one request instead of a bunch
问题
我正在尝试寻找同步SharedPrefs数据的最佳方法，但目前还没有想法。
我试图使用自己的方式，它实际上是有效的。在Prefs中有几个文件：“Sets”文件包含一些数据以及关于其他Prefs名称的信息。这种方式首先应该将数据从“Sets”放入，然后再将数据从其子元素放入。
这种方式会向Firebase发送过多的请求。但Firebase对免费请求有一个每月的限制。因此，重要的是要进行一次大的请求，而不是一堆请求。
SharedPreferences Sets = getSharedPreferences("Sets", MODE_PRIVATE);
FirebaseFirestore db = FirebaseFirestore.getInstance();
Map<String, Object> mainSPRowData = (Map<String, Object>) Sets.getAll();
Map<String, Object> mainSP = new HashMap<>();
mainSP.put("ACTIVE_USER", mainSPRowData.get("ACTIVE_USER"));
mainSP.put("USERS_COUNT", mainSPRowData.get("USERS_COUNT"));
DocumentReference documentReference = db.collection("users").document(mAuth.getCurrentUser().getEmail()).collection("Sets").document("MainSet");
documentReference.set(mainSP);
for (String row : (HashSet<String>) mainSPRowData.get("USERS")) {
SharedPreferences sp = getSharedPreferences(row, MODE_PRIVATE);
documentReference.getParent().document(row).set(sp);
}
我们应该如何做？
我的Firestore模式：
Firestore-root
|
--- users（集合）
| |
| --- 邮件：mymail@google.com（文档）
| |
| --- Sets（集合）
| |
| --- MainSet
| |
| --- ACTIVE_USER: "3"
| --- USERS_COUNT: "21"
| --- user1
| --- user2
| ...
| --- usern
（代码部分已翻译，其余部分保持原样。）
英文:
I'm trying to find the best way to sync the data from SharedPrefs, but there are no ideas.
I'm trying to use own way and it actually works. I have few files in Prefs: "Sets" file that contains some data and info about the names of another Prefs. This way I firstly should put data from "Sets" and then put data from his child elements.
This way we have too many requests to Firebase. But Firebase has a monthly limit of free requests. This way it is important to make one big request instead of a bunch of requests.
SharedPreferences Sets = getSharedPreferences("Sets", MODE_PRIVATE);
FirebaseFirestore db = FirebaseFirestore.getInstance();
Map<String, Object> mainSPRowData = (Map<String, Object>) Sets.getAll();
Map<String, Object> mainSP = new HashMap<>();
mainSP.put("ACTIVE_USER", mainSPRowData.get("ACTIVE_USER"));
mainSP.put("USERS_COUNT", mainSPRowData.get("USERS_COUNT"));
DocumentReference documentReference = db.collection("users").document(mAuth.getCurrentUser().getEmail()).collection("Sets").document("MainSet");
documentReference.set(mainSP);
for (String row : (HashSet<String>)mainSPRowData.get("USERS")) {
SharedPreferences sp = getSharedPreferences(row, MODE_PRIVATE);
documentReference.getParent().document(row).set(sp);
}
How can we?
My Firestore schema:
Firestore-root
|
--- users (collections)
| |
| --- email: mymail@google.com(document)
| |
| --- Sets(colletion)
| |
| --- MainSet
| |
| ---ACTIVE_USER: "3"
| ---USERS_COUNT: "21"
| --- user1
| --- user2
| ...
| --- usern
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