angular / angular/angularfire

[Android] Firestore snapshot listeners is slow to retrieve data.

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描述

### Version info

**Angular:** 17.3.3

**Firebase:** 10.10.0

**AngularFire:** 17.0.1

**Other (e.g. Ionic/Cordova, Node, browser, operating system):**
Ionic:

Ionic CLI : 7.2.0 (/Users/user/.nvm/versions/node/v18.17.0/lib/node_modules/@ionic/cli)
Ionic Framework : @ionic/angular 7.8.2
@angular-devkit/build-angular : 17.3.2
@angular-devkit/schematics : 17.3.2
@angular/cli : 17.3.2
@ionic/angular-toolkit : 11.0.1

Capacitor:

Capacitor CLI : 5.7.4
@capacitor/android : 5.7.4
@capacitor/core : 5.7.4
@capacitor/ios : 5.7.4

Utility:

cordova-res : not installed globally
native-run : 2.0.1

System:

NodeJS : v18.17.0 (/Users/user/.nvm/versions/node/v18.17.0/bin/node)
npm : 10.5.0
OS : macOS Unknown

### How to reproduce these conditions

**Failing test unit, Stackblitz demonstrating the problem**

**Steps to set up and reproduce**

We have developed an Ionic Hybrid app for iOS, Android, and Web platforms, which has been functioning smoothly for the past two years. However, after multiple library updates, we have encountered an issue specific to Android devices. Retrieving the first fresh snapshot listener takes an exceptionally long time on Android, whereas iOS and web platforms retrieve the same snapshot listener in just 1 second on the same device. Android hybrid apps may take up to 60 seconds for this process.

Interestingly, restarting the app after the initial retrieval significantly improves the speed.

I am currently using the compat SDK instead of the Web modular SDK. I wonder if this choice affects the result.

**Sample data and security rules**

### Debug output

** Errors in the JavaScript console **

** Output from `firebase.database().enableLogging(true);` **

** Screenshots **

### Expected behavior

### Actual behavior

貢獻指南

開啟貢獻指南

研究方向

首先,使用列出的 Angular、Firebase、AngularFire、Ionic 和 Capacitor 版本,在 Android 上重現第一個 Firestore 快照監聽器,並將其與 iOS 和 web 進行比較。檢查 compat SDK 是否會影響延遲和擷取時機或偵錯輸出;當 Android 特有的變慢現象得到解釋,並且已記錄經驗證的修正方案或明確的 upstream 轉交時,即視為完成。

由索引模型根據 Issue 內容生成。

評估

技術堆疊
android, angular, firebase, typescript
領域
databases, mobile-dev
Issue 類型
缺陷
難度
4/5
預估耗時
3-5 天
活躍度
停滯
描述清晰度
需要釐清
新手友好度
18/100

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